CN2270120Y - One-stroke opposition-explosion free piston engine - Google Patents
One-stroke opposition-explosion free piston engine Download PDFInfo
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- CN2270120Y CN2270120Y CN 94238030 CN94238030U CN2270120Y CN 2270120 Y CN2270120 Y CN 2270120Y CN 94238030 CN94238030 CN 94238030 CN 94238030 U CN94238030 U CN 94238030U CN 2270120 Y CN2270120 Y CN 2270120Y
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Abstract
The utility model relates to a one-stroke opposition-explosion free piston engine which solves the problems that the existing internal combustion engine body is bulky, the fabrication cost is high, and the piston in the existing free-piston gas turbine can not directly drive the output shaft to apply work. The utility model is characterized in that the utility model applies three methods of a half side gear, an upper rack bar and a low rack bar which are relative, etc., and the linear motion of the piston is changed to be revolution motion. The utility model applies the explosion stroke, the expansion stroke, the exhaust stroke and the scavenging stroke of opposite mounting pistons of both ends on a same straight line to carry out compression, oil injection and ignition for a scavenging stroke in a cylinder of the other end. The pistons of opposite sides are generated to carry out a power stroke once again. Every revolution of a main shaft has two power stroke, and a plurality of cylinders are provided with a public scavenging pump.
Description
The utility model relates to internal-combustion engine and free-piston field of power equipment technology, particularly relates to the maximum internal-combustion engine of present application.
Known to the claimant, existing internal combustion engine use is maximum, the power plant of not outer four-stroke and two-stroke and free-piston and gas turbine or fluid pump driving fluid motor.The four stroke engine burning is more complete, but oil consumption is bigger, and all has the expansion stroke design long, then housing construction weightening finish, and cost strengthens, and loses more than gain.Design is short, and then combustion gas can not fully be expanded, and big portion heat is taken away by exhaust.Piston acts on bent axle by connecting rod in addition, and straight line motion is become rotation motion, causes resolution of forces, efficient is reduced and generation piston eccentric wear.And existing free piston gas turbine or free-piston driven fluid pump are used as power by fluid motor, again complex structure.So existing automobile and tractor is still generally used quartastroke engine and two-stroke machine.
The purpose of this utility model, provide a kind of one-stroke free-piston engine, make free-piston pass through simple mechanism, the merit output that also can directly piston be done is gone, not again by gas turbine or fluid motor, the also general connecting bar and crankshaft mechanism of internal-combustion engine.
Principle of the present utility model is: use two ends steam-cylinder piston on the same straight line to quick-fried, to the supercharging scavenging that the other end cylinder has entered, compress the oil spout igniting.Produce mutually to quick-fried, make main shaft in a revolution, accept twice power stroke, this to have combustion power now and the free-piston unit is compared, with under the power situation, simple in structure, efficient is high, in light weight, rotating speed is high, manufacture cost reduces greatly, burning is polluted few purpose fully.
Retouch art the technical solution of the utility model and working principle below in conjunction with accompanying drawing.
This motor external form characteristics are that cylinder is to realize in pairs, and external form is as a rod, so also can claim excellent h type engine h.
This specification provides following accompanying drawing
Fig. 1 twin-tub is to quick-fried one-stroke free-piston engine (1) type
Fig. 2 twin-tub is to quick-fried one-stroke free-piston engine (2) type
Fig. 3 multi-cylinder (four cylinders, six cylinders, eight cylinders, ten cylinders, more than the twelve-cylinder) one-stroke
Free-piston engine group (3) type
Fig. 4 one-stroke free-piston engine ignition system
Fig. 5 lubrication system
The structure of Fig. 6 stroke longer
Below time illustrate respectively by figure
With Fig. 1 is that example is that twin-tub is to quick-fried one-stroke free-piston engine (1) type
There are tube cylinder [1], left piston [2], upper rack [3], clockwise sour jujube to change [4], main shaft [5], right piston [6], bearing [7], flywheel [8], spindle flange [9], tooth bar [10], the reverse ratchet of stroke [11], precombustion chamber [12], cylinder head [13], heat radiation overcoat [14], microscler air-vent [15] left down among the figure.
Whole work is performed such:
After the compressed air of left end sprayed into fuel oil, piston [2] [6] and tooth bar [3] [10] right lateral, upper rack this moment [3] drive ratchet [4] turned clockwise main shaft and flywheel, and the air in the right-hand member cylinder is compressed.When reaching right dead point, the right precombustion chamber [12] oil spout igniting, right cylinder blast, piston body begins left lateral, and ratchet this moment [4] begins to trackslip, and is as [the flying] of bicycle, inoperative to main shaft.During following tooth bar [10] left lateral,, make main shaft continue revolution by counterclockwise direction sour jujube ratchet [11], meanwhile, left side combustion gas is expanded when reaching relief opening [15], and cylinder spent waste gas in the left side is to leaking in outlet pipe, fresh cool air, nature enters cylinder by the bottom, and piston body continues right lateral, when arriving right dead point, the right beginning explosive expansions exhaust scavenging stroke, therefore circulation endlessly.Because expansion exhaust scavenging stroke is long, relief opening is microscler design, thus the cylinder inner carrier when backhaul, wherein waste gas all escapes, the air displacement of being cooled off by bottom.Because piston does not link with the motor any part, piston is free reciprocating, is again to produce the blast work done by the opposite side cylinder to come this side is compressed, and each cylinder has only an expansion space stroke, therefore for each cylinder, belongs to the one-stroke motor.This formula also can be formed the coaxial unit of multi-cylinder.
With accompanying drawing 2 is example, for twin-tub to quick-fried one-stroke free-piston engine (2) type, what it was different with (1) type is as shown in Figure 2, design has a scavenging cylinder forced ventilation, and it is supporting with half of gear [16] to use double rack [3], reaches the purpose of power transmission.(be similar to half of gear outward, number of actual teeth is less than one side of something)
There are tube cylinder [1], left end piston [2], upper rack [3], main shaft [5], right-hand member piston [6], following tooth bar [10], precombustion chamber [12], cylinder head [13], half of gear [16], left clapboard [17], left air admission valve [18], a left side to advance scavenging air valve [19], left bank pore [20], piston rod [21], left transfer port [22], gas storage chamber [23], right transfer port [24], right exhaust port [25], right cylinder air admission valve [26], the right dividing plate [27] among Fig. 2.
It and first example (1) type do not exist together: be after the piston of two ends, the left and right sides, be provided with left clapboard [17], and right clapboard [27], the purpose of this dividing plate in the back of left and right sides piston, is provided with the scavenging pump chamber, ozone is through filter and suction valve [18], and it is indoor to enter scavenging pump.When left piston under gas explosion pressure promotes, when the right is mobile, the air that is about to its back presses off scavenging air valve [19] and enters gas storage chamber [23], left side air admission valve [18] is closed simultaneously, left piston moves on, and the gas of expansion is promptly entered in the atmosphere by left bank pore [20], and transfer port [22] is opened simultaneously, fresh air enters left side cylinder by gas storage chamber [23], will remain reservation or revocation gas and sweep away.Same situation, after the right explosive expansions stroke begins, right piston [6] is the limit air afterwards, be pressed into again in the gas storage chamber [23], when right piston continuation left lateral, right relief opening [25] is opened, and waste gas is discharged thus, residue waste gas was in a small amount swept away by the air that enters right transfer port [24] in the gas storage chamber [23] again afterwards, and therefore circulation endlessly.
Be not difficult to find out thus, the characteristics of this formula, i.e. combustion gas will be burnt with the scavenging that enters, and the chance that contacts with waste gas is few, so the general two-stroke machine height of efficient, it is more complete to burn, and pollutes few.
Maximum difference in addition, promptly it is to use half of gear [16] to cooperate with tooth bar up and down, drives main shaft [5], the stroke of piston, the product that promptly equals the first diameter of joint of half of gear and π with two except that it.When half of gear on the left side explosion stroke begins, meshing with upper rack, the piston expansion stroke, by the half of gear [16] of rack drives, main shaft is rotated, after left side combustion gas is expanded, effect by half of gear [16] again, meshing with following tooth bar, so main shaft continues to turn to same direction revolution, so go round and begin again.
If need not half of gear, also can use half of friction wheel instead, promptly on the metal wheel face of half of friction wheel, the roll extrusion decorative pattern is joined with the antifriction rubber strip and to be rubbed, and the abrasive rubber bar is made with autotyre casing rubber, be bonded in and constitute fricting strip on the sheet metal, replace aforesaid tooth bar, wheel face and fricting strip press because one side of something rubs, as force transmission mechanism, make main axis rotation, one side of something in addition of no embossing then still has certain clearance with tooth bar, so do not play gearing.This formula also can change transfer port [22] [24] by adorning a direct current scavenging air valve scavenging on the cylinder head.Also can form the multi-cylinder scheme.
Be example, be a plurality of cylinder combination with accompanying drawing 3, and establish (3) type free-piston engine of public scavenging cylinder in addition.
This design is applicable to automobile and tractor power peculiar to vessel and internal combustion engine generator group etc.Its feature is as follows:
Tube cylinder combination by a plurality of relative blasts promotes a main shaft, and is provided with public scavenging cylinder in addition, and in order to scavenging, scavenging air valve is installed on the cylinder head of two ends in addition, adopts uniflow scavenging (Returnning spring is housed on the scavenging air valve, promptly resets after scavenging is pressed into).As be large-scale cylinder, then available a plurality of annular scavenging air valve, owing to be to be provided with public scavenging chamber in addition, so available excess air is carried out scavenging, to reach the purpose of getting rid of exhaust gas inside cylinder as far as possible, among Fig. 3 four pairs of tube cylinders, [31], [32], [34], [35], totally eight cylinder heads use the schematic representation of a public scavenging pump [33].Scavenging cylinder [33] is because the interior scavenging pressure of cylinder is little, so available wear-resisting hard plastic tube or thin metal pipe are made.The scavenging that a plurality of cylinders explode is simultaneously enough dealt with in the scavenging of each stroke.So both can reach combustion gas and can obtain sufficient oxygen supply, scavenging cylinder material also can be varied, public scavenging cylinder is because required scavenging pressure is little, also can adopt corresponding rotary type pressure fan, taken up space to reduce, hold before being loaded on main shaft, as Fig. 3 [51], also available v belt or chain drive.Scavenging air pipe [36] is arranged among the figure, the scavenging air valve of public cylinder left end [37], the air admission valve of left end [38], its net form outer cover is an air filter.The right and left has public gas storage chamber [39], public flywheel [8], common shaft power transmission flange [9], be located at the uniflow scavenging valve [40] [41] of tubular type cylinder end, the cross section structure of public scavenging cylinder, just like the A-A section, with half of gear and rack drives left and right sides piston reciprocates, just air admission valve [38] and scavenging air valve [37] are as shown.
By the A-A cross section of Fig. 3 and B-B cross section as can be seen, the structure in each cylinder is identical.The half of gear of the right piston of tube cylinder [1] left end piston [2] tooth bar [3] main shaft [5] [6] exhaust port [20] precombustion chamber [12] [16] is arranged, scavenging air valve [40] [41], what A-A section and B-B section were different is the mounting point of piston in tube cylinder.A-A is that left piston begins explosive expansions stroke to the right at left dead point.B-B is right piston left the expansion stroke of beginning that explodes when right dead point, and for example there are two countercylinder piston mounting points [32], [35] in four countercylinders [31], [32], [34], [35] in the accompanying drawing 3 as the B-B section.Every pair of tube cylinder structure is identical like this, but because the position difference when installing, the explosive expansions stroke directions system of adjacent two countercylinders carries out on the contrary, and operation that so just can the balance unit reduces the vibrations of under-chassis, makes to move and tends to balance.Cylinder is many more, and power is big more, needs combination so more.This in addition combining form, one-tenth ten cylinders still capable of being combined, twelve-cylinder etc.Increase power as need, only need increase the cylinder number, lengthening overstriking main shaft can make big merit half unit.As this pattern, also can make low power two cylinders to quick-fried straight-wavy valve scavenging or four cylinders to quick-fried unit.
Accompanying drawing 4 is various forms of identical point ignition systems.
As shown in Figure 4, precombustion chamber [12], oil sprayer [42] are identical with general diesel engine, and high-pressure oil pipe [48], fuel pump [43] also are general diesel engine general part.Before left piston [2] arrives left dead point, touching lever [44] bump oil pump [43] center, high pressure oil enters oil sprayer [42] spraying through oil pipe [48].Burning in precombustion chamber [12] makes left side cylinder produce explosive expansions exhaust scavenging stroke.Equally, when right piston during near right dead point, touching lever [44] clashes into the right oil pump center again, makes the right oil sprayer oil spout, and the right produces explosive expansions exhaust scavenging stroke again.Touching lever [44] is to be fixed on the tooth bar [3], with piston reciprocates, is equipped with on the touching lever and assigns the screw adjusted fuel injection quantity.The pre-burning plug [45] of igniting, identical with the general pre-burning plug of igniting, be to make the plug electric heating wire of igniting produce high temperature with battery electric power, after starting is normal, powered-down is again owing to adopting precombustion chamber compression ignite oil spout, so multiple liquid fuels such as diesel oil, gasoline, kerosene, alcohol all can use.
Starting about this motor
The starting of this motor is similar to general diesel engine, and available motor drives main axis rotation, and also available spring or pressurized air hold the power starting, also available wind starting.After the high hot air of compression entered the firing chamber, oil pump sprayed into fuel oil and promptly produces explosive expansions exhaust, scavenging, also can connect power supply at first, used the pre-burning plug of igniting.
Lubricating fitting about this motor
As shown in Figure 5, tying up to upper rack [3] centre has an oil transportation slotted hole [47], and the ring shaped oil passage countercylinder in piston is lubricated, and cylinder lower has oil sump its mid-oil pump and filter screen, and lubricant oil can be recycled.Oil pump links to each other with flexible pipe, and the oil inlet pipe that flexible pipe [49] is connected to the upper rack centre connects [48], makes reciprocally swinging with tooth bar.The elongate slot of cylinder top [50] is for the reciprocal usefulness of hose coupling [48] swing.
Cooling about this machine
The cooling unit of this machine is just like general internal-combustion engine, available air-cooled and water-cooled, and water-cooled is provided with chuck, and air-cooled then with radiating fin and the heat radiation of powerful ventilating fan, this is general current techique.
Another design about length of stroke
Before narrate, about the length of stroke is 1/2nd of the gear product that saves first diameter and π, in order to obtain long expansion stroke, to increase horsepower and efficient, also can be as shown in Figure 6, adopt two tapering arch form tooth bars piston body that partners, as they [3] among the figure and [10] tooth bar up and down, so just can adopt bigger half of gear, make stroke longer.
Design about outlet pipe
The outlet pipe design is same as the prior art, promptly designs an outer cover at the exhaust port place, has outlet pipe to link to each other with silencing apparatus, by silencing apparatus waste gas is entered in the atmosphere.
The utility model compared with prior art, the useful effect that has.
As previously mentioned, use circulation theory of the present utility model and structure, following benefit will be arranged:
1. use one-stroke opposition-explosion free piston engine, in the identical situation of cylinder diameter, only It is similar respectively to put at the two ends of tube cylinder a cylinder head manufacturing cost, the work done number of times To be four times of original quartastroke engine.
2. owing to simple in structure, be again a kind of combined engine, use it and be installed in car On, will make existing automobile and tractor manufacturing cost greatly reduce increased power.
3. because piston makes half of gear drive main shaft by tooth bar, and the arm of force is in the optimum position all the time, the power transmission equilibrium is so mechanical efficiency is higher than crankshaft ﹠ connecting.Bucket cylinder does not produce eccentric wear yet, and prolong working life.
4. owing to measures such as employing pressure scavengings, so be pressurized combustion, fuel injection quantity can strengthen, thereby horsepower can increase.The pressurized air that capacity is arranged, burning can be complete, and environmental pollution reduces.
5. because simple in structure, be again combined, can be designed to the above large combustion power of several thousand horsepowers, so can be widely used in train, ships is made motor and diesel internal combustion generator unit.
6. because rotating speed will improve greatly than four-stroke, the machine heavy phase should alleviate, thermal efficiency height, so can design the paired high-power light-duty one-stroke free-piston engine group of multi-cylinder, makes aeroengine, is used for helicopter and propeller formula civil aircraft.
Claims (8)
1. one-stroke is to quick-fried free-piston engine, comprise cylinder, piston, fuel feeding and lubricating fitting, ignition mechanism, cooling unit, scavenging arrangement, starting mechanism, it is characterized in that: two or two synthetic many group structures of cylinder head group that above two ends are paired, with about carry out explosive expansions work done, exhaust, scavenging and the other end compressed the oil spout igniting quick-fried, be rigidly connected with relative up and down tooth bar and two ends piston, promote half of gear or half of friction wheel or two ratchets that direction is opposite, reciprocating, each revolution of main shaft produces twice power stroke.
According to the one-stroke of claim 1 to quick-fried free-piston engine, feature is that microscler exhaust air-vent [15] is arranged, and clockwise ratchet [4] is arranged, the no air valve structure of counter-rotating ratchet [11].
According to the one-stroke of claim 1 to quick-fried free-piston engine, it is characterized in that: tooth bar [3] or fricting strip are up and down arranged, meshing with the gear [16] of one side of something, left clapboard [17] is arranged, right clapboard [27], left side suction valve [18], scavenging chamber [23], right suction valve [26] advances scavenging air valve [19], left and right sides transfer port [22], [24], left and right sides exhaust port [20], [25].
According to the one-stroke of claim 1 to quick-fried free-piston engine, it is characterized in that: uniflow scavenging valve [40], [41] are arranged in many group structures, public gas storage chamber [39] is arranged, public scavenging pump [33] or revolution scavenging pump [51] are arranged, many groups are arranged with casing top half [31], [32], [33], [34], [35], a shared main shaft [5] has tooth bar [3], half of gear [16], exhaust port [20] in the one-tenth countercylinder of each group.
According to the one-stroke of claim 1 to quick-fried free-piston engine, it is characterized in that: ignition mechanism has reciprocal touching lever [44], be installed on the tooth bar [3], hit pump oil with Injection Pump [43] spray at two ends, the adjusting bolt is housed on the touching lever, can adjust pump oil time and fuel injection quantity, oil sprayer [42] is loaded on the precombustion chamber [12].
According to the one-stroke of claim 1 to quick-fried free-piston engine, it is characterized in that: lubricating fitting has swing flexible pipe [49], be installed on the tooth bar [3],, lubricant oil sent on two ends oil piston ring and scavenging pump piston and the half of gear rack by the oilhole in [3].
7. the one-stroke according to claim 1 starts quick-fried free-piston, it is characterized in that: be designed to the tapering arch form tooth bar in the increase stroke structure, piston body partners.
According to the one-stroke of claim 1 to quick-fried free-piston engine, it is characterized in that: roll extrusion decorative pattern on half of metal wheel, join with antifriction rubber and to rub, the antifriction rubber adhesion replaces tooth bar on metal bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94238030 CN2270120Y (en) | 1994-08-22 | 1994-08-22 | One-stroke opposition-explosion free piston engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94238030 CN2270120Y (en) | 1994-08-22 | 1994-08-22 | One-stroke opposition-explosion free piston engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2270120Y true CN2270120Y (en) | 1997-12-10 |
Family
ID=33845554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94238030 Expired - Fee Related CN2270120Y (en) | 1994-08-22 | 1994-08-22 | One-stroke opposition-explosion free piston engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2270120Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009143672A1 (en) * | 2008-05-28 | 2009-12-03 | Lu Hsuehpen | A multi-circulation driving system of a linear, reciprocating and four-stroke engine |
| CN101326351B (en) * | 2005-09-21 | 2011-04-13 | 哈留-线性交换器股份公司 | Engine arrangement |
| CN102530217A (en) * | 2011-12-19 | 2012-07-04 | 四川大学 | Fast and efficient water spray propelling technology |
| CN103115035A (en) * | 2013-02-28 | 2013-05-22 | 无锡气动技术研究所有限公司 | Circulatory rotation cylinder |
| CN106285994A (en) * | 2016-08-19 | 2017-01-04 | 新奥（中国）燃气投资有限公司 | A kind of free-piston type internal-combustion engine and internal combustion engine generator |
| CN111336009A (en) * | 2020-04-15 | 2020-06-26 | 陆大雄 | Pressure explosion internal combustion type high-auxiliary transmission power generation mechanism |
-
1994
- 1994-08-22 CN CN 94238030 patent/CN2270120Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101326351B (en) * | 2005-09-21 | 2011-04-13 | 哈留-线性交换器股份公司 | Engine arrangement |
| WO2009143672A1 (en) * | 2008-05-28 | 2009-12-03 | Lu Hsuehpen | A multi-circulation driving system of a linear, reciprocating and four-stroke engine |
| CN102530217A (en) * | 2011-12-19 | 2012-07-04 | 四川大学 | Fast and efficient water spray propelling technology |
| CN102530217B (en) * | 2011-12-19 | 2014-07-16 | 四川大学 | Fast and efficient water spray propelling technology |
| CN103115035A (en) * | 2013-02-28 | 2013-05-22 | 无锡气动技术研究所有限公司 | Circulatory rotation cylinder |
| CN103115035B (en) * | 2013-02-28 | 2015-04-22 | 无锡气动技术研究所有限公司 | Circulatory rotation cylinder |
| CN106285994A (en) * | 2016-08-19 | 2017-01-04 | 新奥（中国）燃气投资有限公司 | A kind of free-piston type internal-combustion engine and internal combustion engine generator |
| CN106285994B (en) * | 2016-08-19 | 2019-08-02 | 新奥（中国）燃气投资有限公司 | A kind of free-piston type internal-combustion engine and internal combustion engine generator |
| CN111336009A (en) * | 2020-04-15 | 2020-06-26 | 陆大雄 | Pressure explosion internal combustion type high-auxiliary transmission power generation mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |