CN104791076A

CN104791076A - Variable volume combustion chamber internal combustion engine with auxiliary piston

Info

Publication number: CN104791076A
Application number: CN201510130475.7A
Authority: CN
Inventors: 韩培洲
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-03-25
Filing date: 2015-03-25
Publication date: 2015-07-22
Also published as: WO2016150231A1

Abstract

The invention provides a variable volume combustion chamber internal combustion engine with an auxiliary piston. The internal combustion engine comprises a steam cylinder (21), a piston (22) and a crank shaft be in transmission connection through a connecting rod (23), wherein the position, close to the side edge position of the steam cylinder, on a cylinder cover (2) is provided with a small steam cylinder (26) forming a combustion chamber volume, and a controlled auxiliary piston (31) is installed in the small steam cylinder. When a compression process in the steam cylinder (21) is completed, the auxiliary piston (31) in a small steam cylinder combustion chamber is also pushed to the position where a maximum combustion chamber volume is formed, when the steam cylinder (21) is in a work process, the auxiliary piston compresses the work combustion gas generated in the small steam cylinder combustion chamber into the steam cylinder quickly to push the piston (22) to work, therefore, the clearance volume not capable of working formed in the small steam cylinder (26) and the steam cylinder (21) is in a minimum state, the combustion gas not capable of working left in the clearance volume is also in a minimum state, and therefore the efficiency of the internal combustion engine is further improved.

Description

With the ECC Expansion Combustion Chamber internal-combustion engine of auxiliary piston

Technical field the present invention relates to a kind of internal-combustion engine, particularly a kind of ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston.

Background technique internal-combustion engine mainly comprises petrol engine and diesel engine, in general petrol engine and diesel engine, by adopting higher compression ratio to be the major way of raising the efficiency.Petrol engine is due to the impact by pinking, and compression ratio is generally within 10: 1.Diesel engine, owing to adopting compression-ignition mode, can allow compression ratio reach 13: 1 ~ 20: 1.Compression ratio is higher, and to be equivalent to the volume of firing chamber less, and it is just relatively fewer to stay the combustion gas that can not participate in work done in combustion chamber volume, makes the efficiency of motor also corresponding higher.But in petrol engine, compression ratio can not be very high, and the compression ratio in diesel engine is higher, the gaseous-pressure in cylinder is also just corresponding larger, and diesel engine can be allowed to become more heavy.Even if allow diesel engine have employed 20: 1 very high compression ratios in reality, this part combustion gas in firing chamber still all can not participate in the work in cylinder.

Summary of the invention the object of this invention is to provide a kind of ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston, start to carry out burning work in cylinder after, allow as early as possible the auxiliary piston in little cylinder chamber descending, the most of work done combustion gas in little cylinder chamber volume is shifted onto work done in cylinder, thus allow the efficiency of motor improve further.

ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston of the present invention comprises five kinds of different mode of executions, the ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston in the first mode of execution comprises cylinder, piston in cylinder and the bent axle be connected with transmission in crankcase through connecting rod, the cylinder cap at cylinder lateral location place is provided with the little cylinder of the formation combustion chamber volume avoiding inlet and exhaust valve, in little cylinder, auxiliary piston is housed, at the air vent place be communicated with cylinder near little cylinder, the oil sprayer or spark plug that point to little cylinder are housed, the spring seat being formed and withstanding on the spring bottom that rises again outwards is extended on the upside of the skirt section of auxiliary piston, this spring seat is in the sliding sleeve on cylinder cap, and by the corresponding slip in sliding sleeve of the limit skirt on spring seat, the set spring that rises again is contained in below the spring capping on cover, auxiliary piston is made to be subject to compressing into the active force of little cylinder, spring capping is formed and stretches at the hydraulically-damped post with bottom block seat in spring that rises again, be formed in hydraulically-damped post and bring, the hydraulic fluid chamber of lower breeze way, this hydraulic fluid chamber is communicated with fuel supply line, the slide bar with gear plug set on auxiliary piston is stretched in the hydraulic fluid chamber of hydraulically-damped post, the slideway upper end of the accommodation slide bar upper end on the upside of hydraulic fluid chamber is through the outside pass-out of intercommunicating pore, be formed in the bottom side of the lower breeze way of hydraulic fluid chamber and can limit the stop anchor ring that auxiliary piston shifts out little cylinder, when completing compression process in cylinder, piston is when moving on to top dead center position, move on to by the bottom block seat institute blocking position of hydraulically-damped post on after auxiliary piston in little cylinder also overcomes the elastic force of the spring that rises again under pressurized air effect, form maximum combustion chamber volume, the apical ring seat on the spring seat of auxiliary piston moves the speed withstood on the block seat of hydraulic cushion column bottom and be decelerated buffering by the gear plug on slide bar when moving on to the upper breeze way of hydraulic fluid chamber, after completing compression process in cylinder and starting to carry out work, the work done combustion gas that little combusted cylinder indoor produce starts to promote descent of piston work done, along with descent of piston work done, also advanced rapidly little combusted cylinder indoor by the auxiliary piston of spring pressure effect of rising again in little cylinder, work done gas pressure in little cylinder is entered the work done of cylinder-pushed piston, drive the lower breeze way on the downside of the gear plug shift-in hydraulic fluid chamber on the slide bar be connected when auxiliary piston after, the speed that the gear plug be connected with auxiliary piston is dropped on the stop anchor ring of lower breeze way bottom surface is decelerated buffering.

In the connection oil circuit of hydraulic fluid chamber is arranged, led to again the side of hydraulic fluid chamber under backward with the oil hole of lidstock through in-line by the fuel supply line being located at tip position, the opposite side of hydraulic fluid chamber communicates with the oil circuit leading to upside, and this oil circuit is again through being communicated with oil outlet tube through little oil outlet with after the peep hole of lidstock.

The sidewall of cylinder cap is equipped with the inspection cover towards little cylinder upper end position, the inner side of this inspection cover is namely as the upper and lower sides air-flow path be communicated with on auxiliary piston spring seat, also be formed with corresponding chute in the inner side of inspection cover, the slide block restriction auxiliary piston revolution that be in chute of auxiliary piston by its upper spring seat is installed.

In the ECC Expansion Combustion Chamber internal-combustion engine of the second of the present invention with auxiliary piston, this motor comprises cylinder, piston in cylinder and the bent axle be connected with transmission in crankcase through connecting rod, the cylinder cap at cylinder lateral location place is provided with the little cylinder of the formation combustion chamber volume avoiding inlet and exhaust valve, in little cylinder, auxiliary piston is housed, at the air vent place be communicated with cylinder near little cylinder, the oil sprayer or spark plug that point to little cylinder are housed, connection push rod on auxiliary piston through through on the upside of the little cylinder on cylinder cap the gland fixed be connected with the spring block seat of upper end, spring block seat can corresponding slip in the sliding sleeve on cylinder cap by the limit skirt on it, between spring capping on spring block seat and cover, the spring that rises again is housed, this rise again spring through spring block seat be connected push rod and auxiliary piston can be rapidly to outer extrusion from the inner side of little cylinder, the connecting plate be hinged with rocking arm the inner of the left and right sides connection push rod below spring block seat is equipped with by pivot pin set on it, the rocking arm of both sides is arranged in respective support swing arm set on the left and right axle bed on cylinder cap by the jack shaft at middle part, the outer end of left and right two rocking arms can by a corresponding left side by set roller, the cam that presses on right camshaft presses control simultaneously, the spacing block plate that can be landed on gland is formed on the downside of pivot pin position on connection push rod, when carrying out compression process in cylinder, when piston moves to top dead center position, the cam that presses on the camshaft of left and right also drives auxiliary piston to move in little cylinder by two rocking arms of left and right simultaneously after the pressure overcoming the spring that rises again, compression process is completed when piston moves on to top dead center, when will carry out work, auxiliary piston has been driven inside the little cylinder of shift-in and has formed maximum combustion chamber volume, the pressurized air entered in little cylinder chamber is lighted a fire by oil spout, the work done combustion gas formed enters in cylinder and promotes descent of piston work done, after descent of piston work done, the cam that presses on the camshaft of left and right also turns over roller on the rocking arm of left and right, just auxiliary piston is not driven rapidly the work done combustion gas in little cylinder along with the descending cylinder of compressing into fast of piston participates in work done by the spring that rises again pressed, when auxiliary piston will move on to outside little cylinder, the roller on the rocking arm of left and right will also be fallen pressing of left and right camshaft and journey breeze way will be fallen in cam, and speed when making auxiliary piston move on to outer fix is by corresponding buffering.

Also the inner of two swing arms can be allowed directly to be hinged on below spring block seat, to allow being moved to lower position and the axle bed that the connecting plate avoiding gland is glanded both sides by middle part supports, then allow connecting plate two ends be hinged with the bottom supporting swing arm.

In each cam arrangement on camshaft, the cam that presses be located on the camshaft of intake and exhaust reveal mediates, be respectively equipped with inlet and outlet cam pressing cam both sides, correspondingly by the rocking arm of inlet and outlet cam production to be arranged on the axle Cuo of position between two cylinders outside the pivot pin fixed.

The present invention the third with in the ECC Expansion Combustion Chamber internal-combustion engine of auxiliary piston, this motor comprises cylinder, piston in cylinder and the bent axle be connected with transmission in crankcase through connecting rod, the cylinder cap at cylinder lateral location place is provided with the little cylinder of the formation combustion chamber volume avoiding inlet and exhaust valve, in little cylinder, auxiliary piston is housed, at the air vent place be communicated with cylinder near little cylinder, the spark plug and oil sprayer that point to little cylinder are housed, auxiliary piston be contained in be provided with upside gland little cylinder in, the connection depression bar controlling auxiliary piston puts in auxiliary piston, platen is provided with in the lower end connecting depression bar, correspondingly on the upside of auxiliary piston, be provided with spacing door, be contained in the spring top that rises again in auxiliary piston in the bottom of auxiliary piston with between the platen being connected depression bar lower end, connection depression bar is provided with restriction and connects the spacing block plate that auxiliary piston certain distance compressed into by depression bar, or make the wrist pin of the auxiliary piston in little cylinder on it directly connected with the lower end being connected depression bar, pass through filled pivot pin in the both sides, upper end connecting depression bar and roller is housed, the camshaft of upside pressed cam production to two rollers, the upper end connecting depression bar is also hinged by the swinging end of the pivot pin both sides on it and swing arm, the other end of swing arm is arranged on by pivot pin on the axle bed of cylinder cap sidewall, the middle part of swing arm by middle pivot pin and spring block seat by the spring seat on cylinder cap the return spring that fills support, auxiliary piston is made to be subject to returning the active force inside little cylinder, allow in the inherent compression process of little cylinder and form maximum combustion chamber volume, compression process is completed to top dead center when piston is capable, also after forming work done combustion gas in the firing chamber of little cylinder, piston is promoted descending beginning work done by work done combustion gas, subsequently, the cam that presses on camshaft just drives auxiliary piston descending through connecting depression bar, at the early stage of work, the work done gas pressure in little cylinder chamber is entered the work done of cylinder-pushed piston as early as possible.

The present invention the 4th kind with in the ECC Expansion Combustion Chamber internal-combustion engine of auxiliary piston, this motor comprises cylinder, piston in cylinder and the bent axle be connected with transmission in crankcase through connecting rod, the cylinder cap at cylinder lateral location place is provided with the little cylinder of the formation combustion chamber volume avoiding inlet and exhaust valve, in little cylinder, auxiliary piston is housed, at the air vent place be communicated with cylinder near little cylinder, the oil sprayer pointing to little cylinder is housed, the wrist pin of auxiliary piston in little cylinder on it is connected with the lower end of intermediate connecting rod, connecting rod small end on the auxiliary bent axle on the upside of link pin and cylinder cap of the upper end of intermediate connecting rod is hinged, the both sides of the link pin between two connecting rods are also hinged with the swinging end of swing arm, the other end of swing arm is arranged on by pivot pin on the axle bed of cylinder cap sidewall, auxiliary bent axle is identical with the rotating speed of bent axle, when the piston in cylinder is capable complete compression process to top dead center time, auxiliary piston in little cylinder is also driven on the upside of the little cylinder of shift-in by auxiliary bent axle and forms maximum combustion chamber volume, and work done combustion gas is produced in little cylinder, when the piston in cylinder is started to move to lower dead center direction by work done combustion gas promotion work done, auxiliary piston in little cylinder is assisted bent axle to drive and first cylinder participation work done is all compressed in the work done combustion gas of little combusted cylinder indoor, be driven again subsequently and stretch out little cylinder and enter in cylinder, when the piston in cylinder capable to bottom dead center position time, the auxiliary piston that in little cylinder, stroke is longer also shifts out little cylinder and puts in distance certain in cylinder, in exhaust subsequently and intake process, the auxiliary piston in little cylinder shifts out again little cylinder after also being returned little cylinder by auxiliary bent axle drive and puts in cylinder.

The present invention the 5th kind with in the ECC Expansion Combustion Chamber internal-combustion engine of auxiliary piston, this motor comprises cylinder, piston in cylinder and the bent axle be connected with transmission in crankcase through connecting rod, the bottom dead center position of cylinder is provided with the scavenging port be connected with gas compressor, the cylinder cap of cylinder is provided with the little cylinder forming combustion chamber volume, in little cylinder, auxiliary piston is housed, the sidewall of little cylinder is equipped with oil sprayer or spark plug, auxiliary piston adopts segmented composite structure, piston rod through centre is connected with the skirt plug on top, the microcephaly of the connecting rod on the wrist pin of skirt plug again on it and the auxiliary bent axle on the upside of cylinder cap is hinged, auxiliary bent axle is identical with the speed of crankshaft in crankcase, transition skirt section is formed in the upper side direction skirt plug direction of auxiliary piston, some uniform relief openings are formed in the above position of transition skirt section and auxiliary piston connection, the air outlet flue round piston rod is defined in transition skirt section, the bottom surface of the upper end in transition skirt section and the skirt plug of upside is apart from there being certain distance to form opening of giving vent to anger, correspondingly on the little cylinder side wall separated by a distance with the firing chamber of little cylinder, be provided with the annular exhaust duct be connected with exhaust duct, when the piston in cylinder is capable complete compression process to top dead center position time, auxiliary piston in little cylinder is also driven the little cylinder upper of shift-in form maximum combustion room volume and produce work done combustion gas in little cylinder by auxiliary bent axle, when the piston in cylinder is started to move to lower dead center direction by work done combustion gas promotion work done, auxiliary piston in little cylinder is also moved down by assisting bent axle to drive, the work done gas pressure admission cylinder participation work done in little cylinder, along with the descending work done of piston, the auxiliary piston be driven puts in cylinder, when descent of piston is close to lower dead center and when linking up with the scavenging port on cylinder, the relief opening moved on on the auxiliary piston of lower position is also linked up with the upside of cylinder, simultaneously, the opening of giving vent to anger be connected with relief opening through exhaust passage in auxiliary piston is also in communicating state with the annular exhaust duct on little cylinder side wall, at this moment the scavenging provided by gas compressor just enters cylinder from the scavenging port cylinder, waste gas in cylinder after work done is discharged from the exhaust passage of relief opening on auxiliary piston that the auxiliary piston of upside exposes and the exhaust duct on cylinder cap, after the scavenging port moved up on closedown cylinder to lower dead center when piston is capable, the auxiliary piston of movement simultaneously also leaves lower position and moves up, the little cylinder of the relief opening shift-in on auxiliary piston is allowed to cut off and being communicated with of cylinder, the intake and exhaust gas exchange process carried out in cylinder completes, carry out compression process arrive after top dead center position along with piston moves up, the auxiliary piston simultaneously moved up also exits cylinder, and the upper position moved on in little cylinder forms maximum combustion room volume.

For the sealing between little cylinder and auxiliary piston, little cylinder inner wall is located at for sealing the seal ring sealed between auxiliary piston and little cylinder, the outer peripheral surface being pressed in auxiliary piston by the internal face of seal ring seals, each seal ring is contained in the step of corresponding L-type seal ring seat, overlapped together by multiple L-type seal ring seat that seal ring is housed, form multiple-sealed ring to seal, in the chamfering space of two adjacent L-type seal ring seat built with sealing filling, set multiple L-type seal ring seat overlapped together are contained in L shape step that little cylinder block is formed, and be fitted in the corresponding installing space of cylinder cover bottom surface.

When the corresponding ECC Expansion Combustion Chamber internal-combustion engine of the invention described above is made petrol engine, auxiliary piston in little cylinder by pressurized air or press cam effect get back to upper position the maximum combustion room volume that formed be equivalent to 8: 1 ~ 10: 1 compression ratio, the diesel engine be made into can reach the compression ratio of 12: 1 ~ 13: 1, and motor is by compression-ignition work done.No matter what be made into is petrol engine or diesel engine, after work starts, the auxiliary piston in little cylinder all can promote the external work done of piston in the work done combustion gas press-in cylinder in firing chamber in 80 crank angle degrees After Top Center.Lower position is moved on to, after little cylinder chamber is in minimum volume state at auxiliary piston, clearance volume in the little cylinder clearance volume added when piston in casing top half is in top dead center can form the very high relative compression ratio of 30: 1 ~ 35: 1, only have a small amount of combustion gas in clearance volume can not enter cylinder work done, thus allow petrol engine efficiency of the present invention significantly improve, allow Efficiency of Diesel Engine of the present invention raising further than normal diesel engine.Although internal-combustion engine of the present invention has the very high relative compression ratio of 30: 1 ~ 35: 1, the highest gaseous-pressure produced near top dead center in cylinder is also not bery high, can not increase the mechanical load of driving mechanism.

Accompanying drawing illustrates and is described in detail the ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston of the present invention below in conjunction with accompanying drawing.

Fig. 1 is the structure sectional view of the ECC Expansion Combustion Chamber internal-combustion engine adopting passive type auxiliary piston in first embodiment of the invention.

Fig. 2 is the phase diagram of auxiliary piston when moving on to little cylinder chamber lower position.

Fig. 3 is the structure sectional view of the ECC Expansion Combustion Chamber internal-combustion engine of the auxiliary piston adopting cam production in second embodiment of the invention.

Fig. 4 be along A in Fig. 3 to the structural layout plan of camshaft, cam and rocking arm.

Fig. 5 is the structure sectional view of the ECC Expansion Combustion Chamber internal-combustion engine adopting cam production auxiliary piston in third embodiment of the invention.

Fig. 6 be along B-B in Fig. 5 to oil sprayer and spark plug mounting point figure.

Fig. 7 is the structure sectional view of the another kind of ECC Expansion Combustion Chamber internal-combustion engine of third embodiment of the invention.

Fig. 8 adopts auxiliary bent axle to control the structure sectional view of the ECC Expansion Combustion Chamber internal-combustion engine of auxiliary piston in the present invention's the 4th kind of mode of execution.

Fig. 9 adopts auxiliary bent axle to control the structure sectional view of the two-stroke ECC Expansion Combustion Chamber internal-combustion engine of auxiliary piston in the present invention's the 5th kind of mode of execution

Figure 10 is that the auxiliary piston of two stroke IC engine in Fig. 9 is using the phase diagram participating in work done in gas pressure admission cylinder of little combusted cylinder indoor.

Figure 11 is the phase diagram to venti-lating position of the auxiliary piston of two stroke IC engine in Fig. 9 and descent of piston.

Figure 12 is the mounting structure figure of the little cylinder seal ring of two stroke IC engine in Fig. 9.

Embodiment the present invention forms ECC Expansion Combustion Chamber by the little cylinder being provided with auxiliary piston, at the end of compression process, allow auxiliary piston move on to upper side position makes little cylinder be in maximum combustion room volume conditions, and the high-temperature high-pressure fuel gas needed for work done is produced by oil spout igniting under the maximum volume state of firing chamber, after work starts, along with descent of piston work done, work done combustion gas in little cylinder volume also can be promoted by auxiliary piston, enter rapidly cylinder and participate in work done, allow work done time little cylinder and cylinder in formed can not be in minimum state by work done volume, thus further increase the efficiency of internal-combustion engine.Different by the mode of control action according to auxiliary piston, this ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston of the present invention mainly comprises five kinds of different mode of executions.What Fig. 1 provided is adopt the structure sectional view by the passive type auxiliary piston ECC Expansion Combustion Chamber internal-combustion engine of spring action of rising again in first embodiment of the invention, in FIG, this internal-combustion engine comprises piston 22 in cylinder 21, cylinder and the bent axle be connected with transmission in crankcase through connecting rod 23.The cylinder cap 2 at cylinder 21 lateral location place is provided with the little cylinder 26 of the formation combustion chamber volume avoiding inlet and exhaust valve, auxiliary piston 31 is housed in little cylinder, at the air vent place be communicated with cylinder 21 near little cylinder 26, the oil sprayer 5 pointing to little cylinder is housed.Internal-combustion engine in Fig. 1 mode of execution is with the diesel engine of compression-ignition work by what arrange on the cylinder body 20 of cylinder that oil sprayer 5 makes.The spring seat 35 being formed and withstanding on bottom the spring 47 that rises again outwards is extended on the upside of the skirt section 33 of auxiliary piston 31, this spring seat is in the sliding sleeve 12 on cylinder cap 2, and by the corresponding slip in sliding sleeve of the limit skirt 36 on spring seat, the set spring 47 that rises again is contained in below the spring capping 105 on cover 4, makes auxiliary piston 31 be subject to compressing into the active force of little cylinder 26.The elastic force of the set spring 47 that rises again withstood on auxiliary piston should adjust when reaching the compressed air pressure being equivalent to 8: 1 ~ 10: 1 compression ratio in cylinder, and auxiliary piston 31 should be started mobile in little cylinder by pressurized air effect.When reaching the pressure being equivalent to 13: 1 compression ratios in cylinder, auxiliary piston can be compressed into little cylinder completely and be formed maximum combustion chamber volume.The pressurized air of 13: 1 compression ratios heats up also can allow and sprays into fuel oil in little cylinder chamber by compression-ignition.Auxiliary piston 31 in the medium and small cylinder 26 of Fig. 1 is just shifted onto position, top side by pressurized air and is in maximum combustion room volume conditions, and oil sprayer 5 also sprays into fuel oil in little cylinder.The impact produced when moving up and down for reduction auxiliary piston also limits its stroke, spring capping 105 is formed and stretches at the hydraulically-damped post 62 with bottom block seat 63 in spring 47 that rises again, in hydraulically-damped post, be formed with the hydraulic fluid chamber 64 being with upper and lower breeze way 67,68, this hydraulic fluid chamber is communicated with fuel supply line 80.The slide bar 40 with gear plug 42 set on auxiliary piston 31 is stretched in the hydraulic fluid chamber 64 of hydraulically-damped post, and slideway 65 upper end of accommodation slide bar 40 upper end on the upside of hydraulic fluid chamber is through intercommunicating pore 66 outwards pass-out.Be formed in the bottom side of the lower breeze way 68 of hydraulic fluid chamber and can limit the stop anchor ring 69 that auxiliary piston shifts out little cylinder 26.When completing compression process in cylinder 21, piston 22 is when moving on to top dead center position, move on on after auxiliary piston 31 in little cylinder 26 also overcomes the elastic force of the spring 47 that rises again under pressurized air effect by the bottom block seat of hydraulically-damped post 62 63 blocking positions, form maximum combustion chamber volume, as shown in state in Fig. 1.Apical ring seat 37 on the spring seat 35 of auxiliary piston moves the speed withstood on hydraulic cushion column bottom block seat 63 and be decelerated buffering by the gear plug 42 on slide bar 40 when moving on to the upper breeze way 67 of hydraulic fluid chamber 64.After completing compression process in cylinder 21 and starting to carry out work, the work done combustion gas produced in little cylinder 26 firing chamber starts to promote the descending work done of piston 22, along with descent of piston work done, also advanced rapidly little combusted cylinder indoor by the auxiliary piston 31 of spring 47 pressure effect of rising again in little cylinder, work done gas pressure admission cylinder 21 in little cylinder is promoted piston 22 work done, as shown in state in Fig. 2.After auxiliary piston 31 drives the gear on the slide bar 40 be connected to fill in the lower breeze way 68 on the downside of 42 shift-in hydraulic fluid chambers 64, the speed that the gear plug 42 be connected with auxiliary piston is dropped on the stop anchor ring 69 of lower breeze way bottom surface is decelerated buffering.

Rapidly the work done gas pressure admission cylinder in little cylinder being participated in work done at auxiliary piston walks abreast after lower position, and the cylinder clearance volume 116 that the little cylinder clearance volume 115 formed bottom auxiliary piston 31 adds more than double dot dash line when upper piston 22 is in top dead center position and the ratio of the swept volume of cylinder can be equivalent to the relative compression ratio of 30: 1 ~ 35: 1.Although ECC Expansion Combustion Chamber internal-combustion engine of the present invention reaches very high relative compression ratio, but the Maximum operating pressure that the actual motion Maximum operating pressure being made into diesel engine produces when being only equivalent to 13: 1 compression ratio, after motor increases power and increases work efficiency, pressure maximum suffered by piston, connecting rod and bent axle etc. does not increase, and power-transmitting unit can not be allowed more heavy.

Owing to have employed hydraulically-damped structure for reducing the auxiliary piston impact suffered when moving up and down, before engine startup operation, buffering fluid must be first filled with in hydraulic fluid chamber 64 in hydraulically-damped post 62, for buffering fluid can be filled with in advance in hydraulic fluid chamber on the motor just assembled, as shown in Figure 1, lead to again the side of hydraulic fluid chamber 64 through in-line 84 under backward by the oil hole 83 of fuel supply line 80 through sealing with capping 82 being located at tip position, the opposite side of hydraulic fluid chamber communicates with the oil circuit 87 leading to upside, be communicated with oil outlet tube 89 through little oil outlet 88 after the peep hole 86 of this oil circuit again through sealing with capping 85.In engine operation process, flow through the hydraulic fluid chamber 64 hydraulically-damped post from the fluid of fuel supply line 80 after, the buffering fluid heated up is through the little oil outlet 88 of oil circuit 87 from upside and the oil sump of oil outlet tube 89 return engine.

When after the engine stoping operation that this auxiliary piston adopts hydraulic structure to cushion, also the gear plug 42 on its upper slide bar 40 is driven to be pressed on the stop anchor ring 69 of lower breeze way 68 bottom side by the auxiliary piston 31 of spring action of rising again, fluid in hydraulic fluid chamber 64 can not be leaked, be conducive to the starting operation next time of motor.Certainly; the leakage of the hydraulic fluid chamber in the hydraulically-damped post after shutdown and the meeting of the fluid in corresponding oil circuit part enters to hold the slideway 65 of slide bar; make that the liquid level height of in-line 84 and oil circuit 87 inner fluid is corresponding is reduced to state as shown in Figure 2, but motor can't be affected start next time.When taper is made in the bottom surface 44 of gear plug 42, also can form sealing fluid, the also corresponding area of contact increasing the position that is hit when being better both conducive to shutting down, and can also reduce to keep off the resistance produced when plug moves up and down.

Because auxiliary piston loads in little cylinder 26 through a darker sliding sleeve 12, little cylinder can be loaded for convenience of the auxiliary piston 31 with piston ring, the sidewall 3 of cylinder cap 2 is equipped with the inspection cover 91 towards little cylinder 26 upper end position, the inner side of this inspection cover is namely as the upper and lower sides air-flow path be communicated with on auxiliary piston spring seat 35, also be formed with corresponding chute 92 in the inner side of inspection cover, auxiliary piston 31 limits auxiliary piston revolution by the slide block 38 be in chute 92 that its upper spring seat 35 is installed.

In the second embodiment of the invention ECC Expansion Combustion Chamber internal-combustion engine provided in figure 3, the set auxiliary piston spring that risen again controls with pressing together with cam, as shown in Figure 3, this internal-combustion engine comprises piston 22 in cylinder 21, cylinder and the bent axle be connected with transmission in crankcase through connecting rod 23.The cylinder cap 2 at cylinder 21 lateral location place is provided with the little cylinder 26 of the formation combustion chamber volume avoiding inlet and exhaust valve, auxiliary piston 31 is housed in little cylinder, at the air vent place be communicated with cylinder 21 near little cylinder 26, the spark plug 6 pointing to little cylinder is housed.Because little cylinder 26 is in tilted layout, spark plug 6 has been arranged on the cylinder body 20 of close cylinder, and allows spark plug point to the air vent 28 be communicated with little cylinder.Motor is by plug ignition work done, and the combustion chamber volume in little cylinder 26 is equivalent to 8: 1 ~ 10: 1 compression ratio.When being only provided with spark plug, can oil sprayer being installed outward at cylinder and utilizing choke valve regulating power.As carried out cylinder-in oil-jet at the other oil sprayer of installing of spark plug, just can remove closure and the efficiency of motor under middle low-power is improved.Connection push rod 45 on auxiliary piston 31 through through on the upside of the little cylinder 26 on cylinder cap 2 the gland 13 fixed be connected with the spring block seat 46 of upper end, spring block seat can corresponding slip in the sliding sleeve 12 on cylinder cap by the limit skirt 36 on it, between spring capping 105 on spring block seat 46 and cover 4, the spring 47 that rises again is housed, this rise again spring through spring block seat 46 be connected push rod 45 and auxiliary piston 31 can be rapidly to outer extrusion from the inner side of little cylinder 26.Connection push rod 45 below spring block seat 46 is equipped with by pivot pin 48 set on it connecting plate 51 be hinged with Rocker arm 54 the inner of the left and right sides, the Rocker arm 54 of both sides is arranged in respective support swing arm 59 set on the left and right axle bed 19 on cylinder cap by the jack shaft 53 at middle part, the outer end of left and right two Rocker arm 5s 4 can be pressed control by the cam 70 that presses on corresponding left and right camshaft 99,90 by set roller 55 simultaneously, is formed with the spacing block plate 50 that can be landed on gland 13 on the downside of pivot pin 48 position on connection push rod 45.In Fig. 3, auxiliary piston 31 have employed the mode of structure controlled by the Rocker arm 54 of both sides, and because the roller 55 on the rocking arm of both sides is contrary with the moving direction of auxiliary piston, what can make auxiliary piston moves up and down inertial force by corresponding balance.When carrying out compression process in cylinder 21, piston 22 is when moving to top dead center position, and the cam 70 that presses on left and right camshaft 99,90 also drives auxiliary piston 31 to move in little cylinder 26 by two Rocker arm 5s 4 of left and right simultaneously after the pressure overcoming the spring 47 that rises again.In motor real-world operation, because the pressurized air entered in little cylinder also can promote that auxiliary piston is up to be overcome a part and to rise again the pressure of spring, the both sides on the camshaft of left and right can be allowed to press the corresponding reduction of active force suffered by cam 70.Compression process is completed when piston 22 moves on to top dead center, when will carry out work, as shown in the state of fig. 3, auxiliary piston 31 has been driven inside the little cylinder of shift-in 26 and has formed maximum combustion chamber volume, the fuel oil compressed mixed gas entered in little cylinder chamber is lighted a fire by spark plug 6, the work done combustion gas that formed enter in cylinder 21 and promote the descending work done of piston 22.After the descending work done of piston 22, the cam 70 that presses on the camshaft of left and right also turns over roller 55 on left and right Rocker arm 54, is not just driven rapidly auxiliary piston 31 the work done combustion gas in little cylinder 26 along with the descending cylinder 21 of compressing into fast of piston 22 participates in work done by the spring 47 that rises again pressed.When auxiliary piston 31 will move on to outside little cylinder 26, the roller 55 on left and right Rocker arm 54 will also be fallen pressing of left and right camshaft and journey breeze way 49 will be fallen in cam 70, and speed when making auxiliary piston move on to outer fix is by corresponding buffering.

When the spacing block plate 50 on the connection push rod 45 on the upside of auxiliary piston moves down after on the gland 13 dropped on little cylinder, rise again spring 47 pressure just through connect push rod pass to below gland, and both sides camshaft presses cam 70 because turning over the roller 55 on the rocking arm that is driven, no longer by pressure effect on the position making roller hover over to keep certain interval distance from camshaft surface.Auxiliary piston control mechanism given by Fig. 3 was both applicable to petrol engine, formed the little cylinder chamber volume being equivalent to 9: 1 compression ratios.Also the little cylinder volume being equivalent to 13: 1 by adopting volume less makes diesel engine, and lights a fire with the oil spout of compression ignite mode.Because the set spring force that rises again is comparatively large, 20 ~ 30kg/cm can be produced ²working pressure, the spring that rises again in 50 ~ 60 crank angle degrees that cylinder starts work done just can drive auxiliary piston that cylinder is all compressed in the work done combustion gas in little cylinder chamber timely and participate in work done, allow the efficiency of motor compare regular gasoline machine increase substantially, compare normal diesel engine and efficiency also can be allowed to improve further.Because the vertical tremor inertial force of auxiliary piston can, by the corresponding balance of the roller of counteragent outside rocking arm, also can allow the running of motor be in steady state.

For reducing the past complex inertia mass on auxiliary piston 31 further, also the inner of two swing arms 54 can be allowed directly to be hinged on below spring block seat 46, allow and be moved to lower position and the axle bed that the connecting plate 51 avoiding gland 13 is glanded both sides by middle part supports, then allow connecting plate two ends be hinged (picture) with the bottom supporting swing arm 59.

In the engine cam of Fig. 3 is arranged, the camshaft 90 on right side is not only provided with and presses cam 70, be also provided with intake cam 108 and exhaust cam 109 pressing cam both sides.When the pivot pin 17 that rocking arm 18 is housed is within the radius of gyration scope pressing cam 70, rocking arm mounting type as shown in Figure 4 can be adopted, the cam 70 that presses be located on the camshaft 90 of intake and exhaust reveal mediates, be respectively equipped with inlet and outlet cam 108,109 pressing cam both sides, correspondingly to be arranged on by the rocking arm 18 of inlet and outlet cam production on the axle Cuo 16 of position between two cylinders 21 the outside of pivot pin 17 fixed, and can allow and middle press cam 70 and can turn between the pivot pin of both sides.

Fig. 5 gives the ECC Expansion Combustion Chamber internal-combustion engine of the third mode of execution of the present invention, auxiliary piston in motor is mainly pressed cam production and is moved up and down, be applicable to making the lower petrol engine of working pressure, this internal-combustion engine as shown in Figure 5, comprise cylinder 21, piston 22 in cylinder and the bent axle be connected with transmission in crankcase through connecting rod 23, the cylinder cap 2 at cylinder 21 lateral location place is provided with the little cylinder 26 of the formation combustion chamber volume avoiding inlet and exhaust valve, auxiliary piston 31 is housed in little cylinder, at the air vent place be communicated with cylinder 21 near little cylinder 26, the spark plug 6 and oil sprayer 5 that point to little cylinder are housed.Auxiliary piston 31 be contained in be provided with upside gland 13 little cylinder 26 in, the connection depression bar 60 controlling auxiliary piston 31 puts in auxiliary piston, platen 52 is provided with in the lower end connecting depression bar, correspondingly on the upside of auxiliary piston 31, be provided with spacing door 32, the spring 47 that rises again be contained in auxiliary piston withstands on the bottom of auxiliary piston with between the platen 52 being connected depression bar lower end, connection depression bar 60 is provided with restriction and connects the spacing block plate 50 that auxiliary piston certain distance compressed into by depression bar.The elastic force being contained in the spring 47 that rises again in auxiliary piston 31 should adjust when being subject to the compressed air pressure being equivalent to 8: 1 compression ratios when auxiliary piston, and the spring that rises again just can by corresponding compression.Pass through filled pivot pin 48 in the both sides, upper end connecting depression bar 60 and roller 55 is housed, two rollers are controlled by the cam 96 that presses on the camshaft 99 of upside.The upper end connecting depression bar 60 is also hinged by the swinging end of pivot pin 48 both sides on it and swing arm 57, the other end of swing arm is arranged on the axle bed 19 of cylinder cap sidewall 3 by pivot pin 58, the middle part of swing arm 57 by middle pivot pin 61 and spring block seat 93 by the spring seat 94 on cylinder cap 2 the return spring 95 that fills support, make auxiliary piston 31 be subject to returning active force inside little cylinder 26, allow in the inherent compression process of little cylinder and form maximum combustion chamber volume.When piston 22 in cylinder carries out compression process row to top dead center, the cam 96 that presses on camshaft 99 has shifted to an earlier date several angle presses downside connection depression bar 60 through roller 55, at this moment because having the compressed air pressure being equivalent to 10: 1 compression ratios in little cylinder, and the spring 47 that rises again in auxiliary piston just can be compressed under the pressure of 8: 1 compression ratios, so as shown in Figure 5, although piston 22 row arrives top dead center, press cam 96 and also press auxiliary piston by connecting push rod with the spring that rises again in advance, but auxiliary piston is still in upper side position by the fuel oil mixing pressurized air effect that pressure is larger and remains on maximum combustion room volume conditions.

When piston 22 row completes compression process to top dead center, also after forming work done combustion gas in the firing chamber of little cylinder 26, piston 22 is promoted descending beginning work done by work done combustion gas, subsequently, the cam 96 that presses on camshaft 99 just drives auxiliary piston 31 descending through connecting depression bar 60 with the spring 47 that rises again, and at the early stage of work, the work done gas pressure admission cylinder 21 in little cylinder chamber is promoted piston work done as early as possible.Allow and press cam 96 and press auxiliary piston by the spring 47 that rises again in advance, namely the maximum work done gaseous-pressure in the little cylinder of top dead center is avoided, can be allowed again and press cam along with the reduction of vapour In-cylinder Combustion Pressure can be shifted onto on the downside of little cylinder by the speed of the spring that rises again is additional auxiliary piston as early as possible after work, the gas pressure admission cylinder participation work done of staying little combusted cylinder indoor.The ECC Expansion Combustion Chamber internal-combustion engine being made into petrol engine in Fig. 5 should adopt cylinder-in oil-jet to form fuel mixture, and as shown in Figure 6, oil sprayer 5 has been disposed in the cylinder lateral location on cylinder body 20 to the layout of oil sprayer together with spark plug 6.As arranged oil sprayer and by throttle control air inflow, the vibrations number of times that auxiliary piston connects depression bar relatively can be increased when low-power outside cylinder.

Give the structural configuration mode making the wrist pin 34 of the auxiliary piston 31 in little cylinder 26 on it directly connected with the lower end being connected depression bar 60 in the figure 7.The cam 96 that presses on camshaft 99 should the suitable angle after top dead center pass through to connect depression bar drive auxiliary piston 31, to avoid gaseous-pressure maximum in little cylinder.Press cam subsequently and fast auxiliary piston will be compressed into little cylinder with very steep cam-shaped face.In order to reduce to press the eccentric mass on cam 96, in Fig. 7 on camshaft 99, press the hollow space 97 cam 96 being also formed with and can reducing cam eccentric quality, this hollow space is also extended on camshaft 99, and camshaft is formed groove 98.

The ECC Expansion Combustion Chamber internal-combustion engine of what Fig. 8 provided is the present invention's the 4th kind of mode of execution, the auxiliary piston in this motor have employed the kind of drive controlled by auxiliary bent axle.As shown in Figure 8, this motor comprises piston 22 in cylinder 21, cylinder and the bent axle 24 be connected with transmission in crankcase through connecting rod 23.The cylinder cap 2 at cylinder 21 lateral location place is provided with the little cylinder 26 of the formation combustion chamber volume avoiding inlet and exhaust valve, auxiliary piston 31 is housed in little cylinder, at the air vent place be communicated with cylinder 21 near little cylinder 26, the oil sprayer 5 pointing to little cylinder is housed.Because auxiliary piston 31 stroke longer needs the in little cylinder puts in cylinder 21, require that the diameter of little cylinder can not be too large, the side of inlet and exhaust valve can be arranged in, this also requires that the volume of little cylinder chamber can not be too large, makes the motor of this structure type in Fig. 8 be only suitable for making the diesel engine with compression-ignition.The wrist pin 34 of auxiliary piston 31 in little cylinder 26 on it is connected with the lower end of intermediate connecting rod 74, connecting rod 72 microcephaly on the auxiliary bent axle 71 on the upside of link pin 73 with cylinder cap of the upper end of intermediate connecting rod is hinged, the both sides of the link pin 73 between two connecting rods are also hinged with the swinging end of swing arm 57, the other end of swing arm is arranged on the axle bed 19 of cylinder cap sidewall 3 by pivot pin 58, and auxiliary bent axle 71 is identical with the rotating speed of bent axle 24.When piston 22 row in cylinder 21 completes compression process to top dead center, the auxiliary piston 31 in little cylinder 26 is also formed maximum combustion chamber volume (as shown in double dot dash line in figure 31 ' position) on the upside of the little cylinder of auxiliary bent axle drive shift-in and produced work done combustion gas in little cylinder.When the piston 22 in cylinder by work done combustion gas promote work done start to move to lower dead center direction time, the auxiliary piston 31 in little cylinder 26 is driven by auxiliary bent axle 71 and first cylinder is all compressed in the work done combustion gas of little combusted cylinder indoor and participate in work done (as figure double dot dash line 31 " shown in position), be driven again and stretch out little cylinder and enter cylinder 21 subsequently.When piston 22 row in cylinder is to bottom dead center position, the auxiliary piston 31 that in little cylinder 26, stroke is longer also shifts out little cylinder and puts in distance (as shown in auxiliary piston in Fig. 8 31 position) certain in cylinder 21.Because auxiliary bent axle 71 is identical with the rotating speed of bent axle 24, in exhaust subsequently and intake process, the auxiliary piston in little cylinder shifts out again little cylinder after also being returned little cylinder 26 by auxiliary bent axle 71 drive and puts in cylinder 21.In motor real-world operation, exhaust and intake process in moving up and down of auxiliary piston can't promote that the efficiency of work improves, the cylinder capacity in sub-fraction intake process can be taken on the contrary, too increase a mechanism running wear and tear.Wish that the invalid movement of auxiliary piston in exhaust and intake process can't produce larger mechanical friction loss, be such as no more than 1/6 of obtained efficiency earning.Auxiliary piston adopts the control mode of auxiliary bent axle structurally comparatively simple and reliable, and the counterweight block on auxiliary bent axle also can offset the reciprocal inertia shaking force that part auxiliary piston etc. produces.

Engine options given in each embodiment is above all with the internal-combustion engine of four-stroke mode work, give the present invention the 5th kind of two-stroke ECC Expansion Combustion Chamber internal-combustion engine in fig .9, as shown in Figure 9, this internal-combustion engine comprises cylinder 21, piston 22 in cylinder and the bent axle 24 be connected with transmission in crankcase through connecting rod 23, the bottom dead center position of cylinder 21 is provided with the scavenging port 25 be connected with gas compressor 118, the cylinder cap 2 of cylinder 21 is provided with the little cylinder 26 forming combustion chamber volume, auxiliary piston 31 is housed in little cylinder, the sidewall of little cylinder is equipped with oil sprayer 5, auxiliary piston 31 adopts segmented composite structure, be connected with the skirt plug 110 on top through the piston rod 39 of centre, the microcephaly of the connecting rod 72 on the auxiliary bent axle 71 on the upside of the wrist pin of skirt plug again on it 34 and cylinder cap 2 is hinged, auxiliary bent axle 71 is identical with bent axle 24 rotating speed in crankcase 112.Transition skirt section 78 is formed in upper side direction skirt plug 110 direction of auxiliary piston 31, some uniform relief openings 77 are formed in the above position of transition skirt section and auxiliary piston 31 connection, the air outlet flue 76 round piston rod 39 is defined in transition skirt section 78, the bottom surface of the upper end in transition skirt section and the skirt plug 110 of upside, apart from there being certain distance to form opening 75 of giving vent to anger, is correspondingly provided with the annular exhaust duct 79 be connected with exhaust duct 29 on the little cylinder side wall 27 separated by a distance with the firing chamber of little cylinder 26.When piston 22 row in cylinder 21 completes compression process to top dead center position, auxiliary piston 31 in little cylinder 26 is also driven the little cylinder upper of shift-in form maximum combustion room volume and in little cylinder, produce work done combustion gas, as shown in state in Fig. 9 by auxiliary bent axle 71.When the piston 22 in cylinder is started to move to lower dead center direction by work done combustion gas promotion work done, auxiliary piston 31 in little cylinder 26 is also moved down by auxiliary bent axle drive, the work done gas pressure admission cylinder 21 in little cylinder is participated in work done, as shown in state in Figure 10.Along with the descending work done of piston 22, the auxiliary piston 31 be driven puts in cylinder 21, when piston 22 is descending close to lower dead center and when linking up with the scavenging port 25 on cylinder 21, as shown in Figure 11, the relief opening 77 moved on on the auxiliary piston 31 of lower position is also linked up with the upside of cylinder 21, simultaneously, the opening 75 of giving vent to anger be connected with relief opening 77 through exhaust passage 76 in auxiliary piston is also in communicating state with the annular exhaust duct 79 on little cylinder side wall, at this moment the scavenging provided by gas compressor 118 just enters cylinder from the scavenging port 25 cylinder 21, waste gas in cylinder after work done is discharged from the exhaust passage 76 of relief opening 77 on auxiliary piston that the auxiliary piston 31 of upside exposes and the exhaust duct 29 on cylinder cap 2.When after the scavenging port 25 that piston 22 row moves up on closedown cylinder to lower dead center, the auxiliary piston 31 of movement simultaneously also leaves lower position and moves up, allows the little cylinder 26 of relief opening 77 shift-in on auxiliary piston cut off and being communicated with of cylinder 21, and the interior intake and exhaust gas exchange process carried out of cylinder completes.Carry out compression process arrive after top dead center position along with piston 22 moves up, the auxiliary piston 31 simultaneously moved up also exits cylinder 21, and the upper position moved on in little cylinder 26 forms maximum combustion room volume, to start burning work next time.

Put in again in cylinder because auxiliary piston stroke is longer, as arranged seal ring on auxiliary piston, will be stuck in outside little cylinder, for avoiding this situation, as shown in figure 12, seal ring 101 for sealing sealing between auxiliary piston 31 and little cylinder 26 is located at little cylinder inner wall, the outer peripheral surface being pressed in auxiliary piston 31 by the internal face of seal ring seals, each seal ring 101 is contained in the step of corresponding L-type seal ring seat 102, overlapped together by multiple L-type seal ring seat 102 that seal ring 101 is housed, form multiple-sealed ring to seal, in the chamfering space 104 of two adjacent L-type seal ring seat 102 built with sealing filling, set multiple L-type seal ring seat 102 overlapped together are contained in L shape step that little cylinder block 100 is formed, and be fitted in the corresponding installing space of cylinder cap 2 bottom surface.Only be provided with corresponding seal ring in Figure 12, if necessary, also can set up one oil ring on the upside of seal ring, and to injecting a small amount of lubricant oil between oil ring and seal ring.

In two-stroke ECC Expansion Combustion Chamber internal-combustion engine in fig .9, auxiliary piston is assisted crankshaft-and-connecting-rod to control, structurally comparatively simple and reliable.Adopt the auxiliary piston of segmented composite structure to play double action, not only the high-temperature high-pressure fuel gas in little cylinder will be compressed in work the cylinder of downside, also in two-stroke gas exchange process, exhaust will be coordinated as drain tap.This two stroke IC engine coordinating ventilation to form by auxiliary piston is because adopt direct-current ventilation, cylinder can be allowed to obtain better ventilation effect, relief opening simultaneously on auxiliary piston can exhaust process will at the end of quick closedown, also be conducive to the improvement of gas exchange process, allow this two-stroke ECC Expansion Combustion Chamber efficiency of internal combustion engine utilizing double-action auxiliary piston to form improve further.Certainly, allow auxiliary piston put in the admission space also occupying sub-fraction cylinder while cylinder coordinates ventilation, need the discharge capacity of corresponding increase cylinder to supplement the volume shared by auxiliary piston.

Claims

1. the ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston, comprise cylinder (21), piston (22) in cylinder and the bent axle be connected with transmission in crankcase through connecting rod (23), the cylinder cap (2) at cylinder (21) lateral location place is provided with the little cylinder (26) of the formation combustion chamber volume avoiding inlet and exhaust valve, auxiliary piston (31) is housed in little cylinder, at the air vent place be communicated with cylinder (21) near little cylinder (26), the oil sprayer (5) or spark plug (6) that point to little cylinder are housed, it is characterized in that: outwards extend in the upside, skirt section (33) of auxiliary piston (31) spring seat (35) being formed with and withstanding on the spring that rises again (47) bottom, this spring seat is in the sliding sleeve (12) on cylinder cap (2), and by limit skirt (36) the corresponding slip in sliding sleeve on spring seat, the set spring that rises again (47) is contained in below the spring capping (105) on cover (4), auxiliary piston (31) is made to be subject to compressing into the active force of little cylinder (26), spring capping (105) is formed the hydraulically-damped post (62) with bottom block seat (63) stretched in the spring that rises again (47), be formed in hydraulically-damped post and bring, lower breeze way (67, 68) hydraulic fluid chamber (64), this hydraulic fluid chamber is communicated with fuel supply line (80), the upper set slide bar (40) with gear plug (42) of auxiliary piston (31) is stretched in the hydraulic fluid chamber (64) of hydraulically-damped post, slideway (65) upper end of accommodation slide bar (40) upper end on the upside of hydraulic fluid chamber is through intercommunicating pore (66) outwards pass-out, be formed in the bottom side of the lower breeze way (68) of hydraulic fluid chamber and can limit the stop anchor ring (69) that auxiliary piston shifts out little cylinder (26), when completing compression process in cylinder (21), when piston (22) moves on to top dead center position, move on to by bottom block seat (63) the institute blocking position of hydraulically-damped post (62) on after auxiliary piston (31) in little cylinder (26) also overcomes the elastic force of the spring that rises again (47) under pressurized air effect, form maximum combustion chamber volume, apical ring seat (37) on the spring seat (35) of auxiliary piston moves the speed withstood on hydraulic cushion column bottom block seat (63) and be decelerated buffering by the gear plug (42) on slide bar (40) when moving on to upper breeze way (67) of hydraulic fluid chamber (64), after completing compression process in cylinder (21) and starting to carry out work, the work done combustion gas produced in little cylinder (26) firing chamber starts to promote piston (22) descending work done, along with descent of piston work done, also advanced rapidly little combusted cylinder indoor by the auxiliary piston (31) of the spring that rises again (47) pressure effect in little cylinder, work done gas pressure admission cylinder (21) in little cylinder is promoted piston (22) work done, after auxiliary piston (31) drives the lower breeze way (68) of gear plug (42) shift-in hydraulic fluid chamber (64) downside on the slide bar (40) be connected, the speed that the gear plug (42) be connected with auxiliary piston is dropped on the stop anchor ring (69) of lower breeze way bottom surface is decelerated buffering.

2. the ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston according to claim 1, it is characterized in that: the side leading to again hydraulic fluid chamber (64) under backward by the oil hole (83) of fuel supply line (80) through sealing with capping (82) being located at tip position through in-line (84), the opposite side of hydraulic fluid chamber communicates with the oil circuit (87) leading to upside, and the peep hole (86) of this oil circuit again through sealing with capping (85) is communicated with oil outlet tube (89) by little oil outlet (88).

3. the ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston according to claim 2, it is characterized in that: the inspection cover (91) towards little cylinder (26) upper end position is housed on the sidewall (3) of cylinder cap (2), the inner side of this inspection cover is namely as the upper and lower sides air-flow path be communicated with on auxiliary piston spring seat (35), also be formed with corresponding chute (92) in the inner side of inspection cover, slide block (38) the restriction auxiliary piston revolution that be in chute (92) of auxiliary piston (31) by its upper spring seat (35) is installed.

4. the ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston, comprise cylinder (21), piston (22) in cylinder and the bent axle be connected with transmission in crankcase through connecting rod (23), the cylinder cap (2) at cylinder (21) lateral location place is provided with the little cylinder (26) of the formation combustion chamber volume avoiding inlet and exhaust valve, auxiliary piston (31) is housed in little cylinder, at the air vent place be communicated with cylinder (21) near little cylinder (26), the oil sprayer (5) or spark plug (6) that point to little cylinder are housed, its characteristic is: connection push rod (45) on auxiliary piston (31) through through little cylinder (26) upside on cylinder cap (2) the gland (13) fixed be connected with the spring block seat (46) of upper end, spring block seat can corresponding slip in the sliding sleeve (12) on cylinder cap by the limit skirt (36) on it, between spring capping (105) on spring block seat (46) and cover (4), the spring that rises again (47) is housed, this rise again spring through spring block seat (46) be connected push rod (45) and auxiliary piston (31) can be rapidly to outer extrusion from the inner side of little cylinder (26), connection push rod (45) below spring block seat (46) is equipped with by pivot pin (48) set on it connecting plate (51) be hinged with the rocking arm of the left and right sides (54) the inner, the rocking arm (54) of both sides is gone up in set respective support swing arm (59) by the left and right axle bed (19) that the jack shaft (53) at middle part is arranged on cylinder cap, the outer end of left and right two rocking arms (54) can by corresponding left and right camshaft (99 by set roller (55), 90) cam (70) that presses on presses control simultaneously, the spacing block plate (50) that can be landed on gland (13) is formed on the downside of pivot pin (48) position in connection push rod (45), when carrying out compression process in cylinder (21), when piston (22) moves to top dead center position, left and right camshaft (99, 90) cam (70) that presses on also drives auxiliary piston (31) mobile in little cylinder (26) by two rocking arms (54) of left and right simultaneously after the pressure overcoming the spring that rises again (47), compression process is completed when piston (22) moves on to top dead center, when will carry out work, auxiliary piston (31) has been driven the little cylinder of shift-in (26) inner side and has formed maximum combustion chamber volume, the pressurized air entered in little cylinder chamber is lighted a fire by oil spout, the work done combustion gas formed enters in cylinder (21) and promotes piston (22) descending work done, after piston (22) descending work done, the cam (70) that presses on the camshaft of left and right also turns over roller (55) on left and right rocking arm (54), just auxiliary piston (31) is not driven rapidly the work done combustion gas in little cylinder (26) along with the descending cylinder (21) of compressing into fast of piston (22) participates in work done by the spring that rises again (47) pressed, when auxiliary piston (31) will move on to little cylinder (26) outside, roller (55) on left and right rocking arm (54) is also fallen pressing of left and right camshaft and journey breeze way (49) is fallen in cam (70), and speed when making auxiliary piston move on to outer fix is by corresponding buffering.

5. the ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston according to claim 4, it is characterized in that: the inner of two swing arms (54) also can be allowed directly to be hinged on below spring block seat (46), allow and be moved to lower position and the axle bed that the connecting plate (51) avoiding gland (13) is glanded both sides by middle part supports, then allow connecting plate two ends be hinged with the bottom supporting swing arm (59).

6. the ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston according to claim 4, it is characterized in that: the cam (70) that presses be located on the camshaft (90) of intake and exhaust reveal mediates, be respectively equipped with inlet and outlet cam (108,109) pressing cam both sides, correspondingly by the rocking arm of inlet and outlet cam production (18) to be arranged on the axle Cuo (16) of position between two cylinders (21) pivot pin (17) outside fixed.

7. the ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston, comprise cylinder (21), piston (22) in cylinder and the bent axle be connected with transmission in crankcase through connecting rod (23), the cylinder cap (2) at cylinder (21) lateral location place is provided with the little cylinder (26) of the formation combustion chamber volume avoiding inlet and exhaust valve, auxiliary piston (31) is housed in little cylinder, at the air vent place be communicated with cylinder (21) near little cylinder (26), the spark plug (6) and oil sprayer (5) that point to little cylinder are housed, it is characterized in that: auxiliary piston (31) be contained in be provided with upside gland (13) little cylinder (26) in, the connection depression bar (60) controlling auxiliary piston (31) puts in auxiliary piston, platen (52) is provided with in the lower end connecting depression bar, correspondingly be provided with spacing door (32) in auxiliary piston (31) upside, the spring that rises again (47) be contained in auxiliary piston withstands on the bottom of auxiliary piston with between the platen (52) being connected depression bar lower end, connection depression bar (60) is provided with restriction and connects the spacing block plate (50) that auxiliary piston certain distance compressed into by depression bar, or make auxiliary piston (31) wrist pin on it (34) in little cylinder (26) directly connected with the lower end being connected depression bar (60), pass through filled pivot pin (48) in the both sides, upper end connecting depression bar and roller (55) is housed, two rollers are controlled by the cam (96) that presses on the camshaft of upside (99), the upper end connecting depression bar (60) is also hinged by the swinging end of pivot pin (48) both sides on it and swing arm (57), the other end of swing arm is arranged on the axle bed (19) of cylinder cap sidewall (3) by pivot pin (58), the middle part of swing arm (57) by middle pivot pin (61) and spring block seat (93) by the spring seat (94) on cylinder cap (2) return spring (95) support that fills, auxiliary piston (31) is made to be subject to returning the active force of little cylinder (26) inner side, allow in the inherent compression process of little cylinder and form maximum combustion chamber volume, when piston (22) row completes compression process to top dead center, also after forming work done combustion gas in the firing chamber of little cylinder (26), piston (22) is promoted descending beginning work done by work done combustion gas, subsequently, the cam (96) that presses on camshaft (99) just drives auxiliary piston (31) descending through connecting depression bar (60), at the early stage of work, work done gas pressure admission cylinder (21) in little cylinder chamber is promoted piston work done as early as possible.

8. the ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston, comprise cylinder (21), piston (22) in cylinder and the bent axle (24) be connected with transmission in crankcase through connecting rod (23), the cylinder cap (2) at cylinder (21) lateral location place is provided with the little cylinder (26) of the formation combustion chamber volume avoiding inlet and exhaust valve, auxiliary piston (31) is housed in little cylinder, at the air vent place be communicated with cylinder (21) near little cylinder (26), the oil sprayer (5) pointing to little cylinder is housed, it is characterized in that: auxiliary piston (31) wrist pin on it (34) in little cylinder (26) is connected with the lower end of intermediate connecting rod (74), connecting rod (72) microcephaly on the auxiliary bent axle (71) on the upside of link pin (73) with cylinder cap of the upper end of intermediate connecting rod is hinged, the both sides of the link pin (73) between two connecting rods are also hinged with the swinging end of swing arm (57), the other end of swing arm is arranged on the axle bed (19) of cylinder cap sidewall (3) by pivot pin (58), auxiliary bent axle (71) is identical with the rotating speed of bent axle (24), when piston (22) row in cylinder (21) completes compression process to top dead center, auxiliary piston (31) in little cylinder (26) is also driven on the upside of the little cylinder of shift-in by auxiliary bent axle and forms maximum combustion chamber volume, and work done combustion gas is produced in little cylinder, when the piston (22) in cylinder is started to move to lower dead center direction by work done combustion gas promotion work done, auxiliary piston (31) in little cylinder (26) is driven by auxiliary bent axle (71) and first cylinder participation work done is all compressed in the work done combustion gas of little combusted cylinder indoor, be driven again subsequently and stretch out little cylinder and enter in cylinder (21), when piston (22) row in cylinder is to bottom dead center position, the auxiliary piston (31) that in little cylinder (26), stroke is longer also shifts out little cylinder and puts in distance certain in cylinder (21), in exhaust subsequently and intake process, the auxiliary piston in little cylinder shifts out again little cylinder after also being returned little cylinder (26) by auxiliary bent axle (71) drive and puts in cylinder (21).

9. the ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston, comprise cylinder (21), piston (22) in cylinder and the bent axle (24) be connected with transmission in crankcase through connecting rod (23), the bottom dead center position of cylinder (21) is provided with the scavenging port (25) be connected with gas compressor (118), the cylinder cap (2) of cylinder (21) is provided with the little cylinder (26) forming combustion chamber volume, auxiliary piston (31) is housed in little cylinder, the sidewall of little cylinder is equipped with oil sprayer (5) or spark plug (6), it is characterized in that: auxiliary piston (31) adopts segmented composite structure, be connected with the skirt plug (110) on top through the piston rod (39) of centre, the wrist pin of skirt plug again on it (34) is hinged with the microcephaly of the connecting rod (72) on the auxiliary bent axle (71) of cylinder cap (2) upside, auxiliary bent axle (71) is identical with bent axle (24) rotating speed in crankcase (112), transition skirt section (78) is formed in upper side direction skirt plug (110) direction of auxiliary piston (31), some uniform relief openings (77) are formed in the above position of transition skirt section and auxiliary piston (31) connection, the air outlet flue (76) round piston rod (39) is defined in transition skirt section (78), the bottom surface of the upper end in transition skirt section and the skirt plug (110) of upside is apart from there being certain distance to form opening of giving vent to anger (75), on the little cylinder side wall (27) separated by a distance with the firing chamber of little cylinder (26), be correspondingly provided with the annular exhaust duct (79) be connected with exhaust duct (29), when piston (22) row in cylinder (21) completes compression process to top dead center position, auxiliary piston (31) in little cylinder (26) is also driven the little cylinder upper of shift-in to form maximum combustion room volume by auxiliary bent axle (71), and work done combustion gas is produced in little cylinder, when the piston (22) in cylinder is started to move to lower dead center direction by work done combustion gas promotion work done, auxiliary piston (31) in little cylinder (26) is driven by auxiliary bent axle and also moves down, work done gas pressure admission cylinder (21) in little cylinder is participated in work done, along with the descending work done of piston (22), the auxiliary piston (31) be driven puts in cylinder (21), when piston (22) is descending close to lower dead center and when linking up with the scavenging port (25) on cylinder (21), the relief opening (77) moved on on the auxiliary piston (31) of lower position is also linked up with the upside of cylinder (21), simultaneously, the opening of giving vent to anger (75) be connected with relief opening (77) through exhaust passage (76) in auxiliary piston is also in communicating state with the annular exhaust duct (79) on little cylinder side wall, at this moment the scavenging provided by gas compressor just enters cylinder from the scavenging port (25) cylinder (21), waste gas in cylinder after work done is discharged from the exhaust duct (29) on relief opening (77) exhaust passage on auxiliary piston (76) that the auxiliary piston (31) of upside exposes and cylinder cap (2), when after the scavenging port (25) that piston (22) row moves up on closedown cylinder to lower dead center, the auxiliary piston (31) of movement simultaneously also leaves lower position and moves up, the little cylinder of relief opening (77) shift-in (26) on auxiliary piston is allowed to cut off and being communicated with of cylinder (21), the intake and exhaust gas exchange process carried out in cylinder completes, carry out compression process arrive after top dead center position along with piston (22) moves up, the auxiliary piston (31) simultaneously moved up also exits cylinder (21), and the upper position moved on in little cylinder (26) forms maximum combustion room volume.

10. the ECC Expansion Combustion Chamber internal-combustion engine with auxiliary piston according to claim 9, it is characterized in that: the seal ring (101) for sealing sealing between auxiliary piston (31) and little cylinder (26) is located at little cylinder inner wall, the outer peripheral surface being pressed in auxiliary piston (31) by the internal face of seal ring seals, each seal ring (101) is contained in the step of corresponding L-type seal ring seat (102), overlapped together by multiple L-type seal ring seat (102) that seal ring (101) is housed, form multiple-sealed ring to seal, in the chamfering space (104) of two adjacent L-type seal ring seat (102) built with sealing filling, set multiple L-type seal ring seat (102) overlapped together are contained in L shape step that little cylinder block (100) is formed, and be fitted in the corresponding installing space of cylinder cap (2) bottom surface.