CN1834422A - Superhigh boosting double-circulation variable discharge I.C. engine - Google Patents
Superhigh boosting double-circulation variable discharge I.C. engine Download PDFInfo
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- CN1834422A CN1834422A CN 200610012567 CN200610012567A CN1834422A CN 1834422 A CN1834422 A CN 1834422A CN 200610012567 CN200610012567 CN 200610012567 CN 200610012567 A CN200610012567 A CN 200610012567A CN 1834422 A CN1834422 A CN 1834422A
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Abstract
The present invention relates to an internal combustion engine. Said invention is an internal combustion engine with complete circulation formed by adopting supercharging circulation and adding Rankine circulation. Said internal combustion engine is composed of two small cylinders and a large cylinder added between said two small cylinders. Said internal combustion engine is characterized by that it utilizes cylinder body to produce power, and utilizes crankcase to produce supercharging admission to implement expansion work in large cylinder, and can conveniently control accelerator to make the large cylinder conveniently and smoothly stop work or start work. The invented internal combustion engine can utilize its cylinder self-body to implement supercharging, exhaust energy recovery and partial cylinder working condition selection. Said two small cylinders respectively are equipped with a piston which is controlled by screw or eccentric shaft and can be up-down moved to change cylinder working volume so as to implement variable compression ratio.
Description
Technical field
The invention belongs to internal-combustion engine, particularly a kind of superhigh boosting double-circulation variable discharge internal-combustion engine.
Background technique
Internal-combustion engine has experienced natural circulation (gas engine), compression cycle (Otto cycle is a petrol engine), and compression ignite circulation (diesel cycle is a diesel engine) utilizes supercharging technology etc., and the thermal efficiency progressively improves.For recycling exhaust overbottom pressure waste heat (exhaust energy accounts for the 40-50% of whole energy), generally use exhaust turbine pressuring technology, improve the thermal efficiency.Internal-combustion engine on the most of internal-combustion engine, the particularly traffic tool, 50% following power accounts for whole working times more than 90% working time.So, for saving fuel oil, further improving internal combustion engine thermal efficiency, people have developed modulated displacement engine, promptly close as required and in time or the start-up part cylinder.But shortcoming also is conspicuous, and the cylinder of half lost for 90% working time, and 90% working time, the cylinder parts of half wore and tore in vain, and the complete machine cost improves greatly, improves more than 100%.More previous Europe and a lot of companies of the U.S. all developed modulated displacement engine, but all because the not success of above-mentioned shortcoming.Before this, people also do not have a kind of technological scheme super high pressure-charging, and two circulations become these three kinds of technology of discharge capacity and are integrated on a kind of internal-combustion engine.
Summary of the invention
The present invention adopts supercharging circuit notion, add its middle big cylinder with two little cylinders, they are on same bent axle, two little cylinders and its middle big cylinder stroke differ 180 degree, utilize cylinder body to produce power, crankcase produces super charge, in conjunction with natural inflow, utilizes body itself to form complete air inlet, compression, expand, the steam discharge four stroke cycle is utilized the exhaust (first circulation) of two little cylinders, reexpanding in big cylinder, (second circulation is rankine cycle or claims the steamer circulation in acting, overall expansion ratio can reach more than 100), and can make big cylinder very convenient by the control throttle, very level and smooth starting to work or quitting work.When quitting work, cylinder broad in the middle utilizes the exhaust of two the little cylinders acting that reexpands, and reclaims the steam discharge energy; Spray into fuel oil when starting to work, cylinder broad in the middle is equivalent to a two stroke engine that has function of increasing pressure concurrently, realizes becoming the discharge capacity operation.The cylinder body of this invention internal-combustion engine utilization itself, crankcase has just been finished supercharging, and exhaust energy reclaims, and the partial cylinders working state is selected.And supercharging can reach 5 times of external pressures easily above (pressure ratio is low pressure charging less than 1.8, and pressure ratio 1.8-2.5 is middle supercharging in theory, pressure ratio 2.5-3.6 is high pressure-charging, pressure ratio＞3.6 are super high pressure-charging), delivery temperature and pressure are more near ambient temperature and pressure, and the combustion gas maximum temperature reduces, the oxygen abundance, HC, CO and NO discharging are extremely low, and noise is extremely low, at environment, emission request is significant high today.
Common structure of the present invention is in the middle of two stingy cylinders 1 and 2 a big cylinder 3 to be arranged, the swept volume of big cylinder 3 is 1.5-30 times (we elect 10 times as at this) of stingy cylinder 1 and 2 swept volumes, they are on same bent axle, two little cylinders and its middle big cylinder stroke differ 180 degree, two stingy cylinders 1 and 2 stroke differ 360 degree, the outlet pipe of two little cylinders and the big cylinder in the middle of it communicate, big cylinder 3 discharge capacities (can be that cylinder diameter is big greater than the discharge capacity of two stingy cylinders 1 and 2, also can stroke big, or both have both at the same time), so just can set up work cycle.The crankcase of big cylinder has pressurization, and the crankcase of two little cylinders also has pressurization.
Supercharging endless form one: stingy cylinder 1 is made up of cylinder body and crankcase.There is a suction tude cylinder body top, the pressure inlet that one-way valve is arranged that communicates with crankcase, an outlet pipe.Because stingy cylinder 1 work cycle is a four-stroke, pressurization is:
Stroke one, the gas of the downward boosting of crankcase of combustion gas expansion piston is stored in the pressure inlet by one-way valve;
The crankcase air inlet is discharged in the combustion gas that makes progress of stroke two, piston;
Stroke three, the downward atmosphere environment gas of air inlet piston enters cylinder by suction tude, close near the suction tude lower dead center in piston motion, pressure inlet is opened, the gas of boosting of crankcase together enters cylinder by the pressurization gas that one-way valve and stroke one store, piston moved upward a bit of time by lower dead center after, pressure inlet was also closed, and air intake pressurized this moment is in theory near 3 atmosphere environment pressure.
Stroke four, the piston compress inlet air that moves upward.
With cocycle because in theory pressure ratio near 3, be high pressure-charging, and only utilize the circulation of just finishing the work of the own structure of single cylinder body itself, supercharging is in good time, does not have the pressurization time retardation phenomenon, so, this circulation should be continuous natural circulation, compression cycle, after the compression ignite circulation, another new hot machine circulation---supercharging circulation.Present supercharging is the structure of utilizing outside the body itself, does not constitute circulation, and supercharging lags behind if having time, can not become the supercharging circulation.This supercharging circulation can be as present internal-combustion engine single cylinder, and multi-cylinder is directly used.Improve the specific power of internal-combustion engine greatly.
Supercharging endless form two: because the present invention also has big cylinder 3, utilize the effect of big cylinder 3 its boosting of crankcase, by stingy cylinder 1 and 2 and big cylinder 3 between the shared pipe of intake and exhaust the gas in the big cylinder 3 of a part is pressed into stingy cylinder 1 and 2, making stingy cylinder 1 and 2 be easy to reach pressure ratio is super high pressure-charging more than 5.When being stingy cylinder 1 and 2 swept volumes 10 times such as the swept volume when big cylinder 3, the gas with 60% is pressed into stingy cylinder 1 and 2, and making stingy cylinder 1 and 2 pressure ratios is 6 in theory, and remains 40% gas in addition and use for big cylinder 3 self two stroke cycle operation.
Two circulations: (circulation of compression cycle or compression ignite or supercharging circulation+rankine cycle): two stingy cylinders 1 and 2 are except that doing at this cylinder circulation of compression cycle or compression ignite or supercharging circulate, its exhaust still has the overbottom pressure waste heat, when entering big cylinder 3 respectively, because it is big that cylinder capacity becomes, the residual compression gas hybrid cooling supercharging in exhaust and the big cylinder 3 continues expansion working, reduce temperature and pressure, reduce noise, reclaimed the energy in the exhaust, improved efficiency of heat engine. Stingy cylinder 1 and 2 exhaust are equivalent to the fresh steam of big cylinder 3, and principle very elephant " repeatedly expansion steam machine " is a rankine cycle.
Become discharge capacity: because big cylinder 3 is except supplying stingy cylinder 1 and 2 superchargings, some residual gas is for self compression and combustion use.When needs increase power, in big cylinder 3, spray into fuel oil, the combustion gas acting in conjunction in exhaust of little cylinder at this moment and the big cylinder 3, the piston that promotes in the big cylinder 3 moves downward, this moment, big cylinder 3 was equivalent to a single cylinder two-stroke internal-combustion engine, realized becoming the discharge capacity operation.
Variable compression ratio: the consumption of variable compression ratio engine fuel oil has reduced by 30% and has been suitable for the multipropellant driving, help reducing discharging, improving operation stability, is a great technical development, can satisfy the main key request of relevant environment of car industry and energy aspect.
Complete cycle process of the present invention is:
Stroke one, stingy cylinder 1 air inlet, big cylinder 3 exhausts and air inlet, stingy cylinder 2 expands;
Stroke two, stingy cylinder 1 compression, big cylinder 3 expands stingy cylinder 2 exhausts;
Stroke three, stingy cylinder 1 expands, big cylinder 3 exhausts and air inlet, stingy cylinder 2 air inlets;
Stroke four, stingy cylinder 1 exhaust, big cylinder 3 expands, stingy cylinder 2 compressions;
According to stingy cylinder air intake pressurized mode difference seven kinds of main structure modes are arranged:
Air intake pressurized mode one:
Stroke one:
The gas of the downward boosting of crankcase of stingy cylinder 1 combustion gas expansion piston is stored in the pressure inlet by one-way valve.
Stroke two:
The combustion gas that makes progress of stingy cylinder 1 piston is expelled to big cylinder 3, crankcase air inlet.
The combustion gas mixing cooling supercharging that residual compression gas in the big cylinder 3 and stingy cylinder 1 are discharged continues expansion working.If needing this moment increases power, then in big cylinder 3, spray into fuel oil, realize the change discharge capacity operation of internal-combustion engine.
Stroke three:
The gas of the downward boosting of crankcase of stingy cylinder 2 combustion gas expansion pistons is stored in the pressure inlet by one-way valve.
Stroke four:
The combustion gas mixing cooling supercharging that residual compression gas in the big cylinder 3 and stingy cylinder 2 are discharged continues expansion working.If needing this moment increases power, then in big cylinder 3, spray into fuel oil, realize the change discharge capacity operation of internal-combustion engine.
The combustion gas that makes progress of stingy cylinder 2 pistons is expelled to big cylinder 3, crankcase air inlet.
Air intake pressurized mode two:
Air intake pressurized mode three:
Air intake pressurized mode four:
Air intake pressurized mode five:
Air intake pressurized mode six:
There are two and stingy cylinder 17 and 18 suction tude that link (being the outlet pipe of stingy cylinder 17 and 18) in big cylinder 19 cylinder bodies top, and the pressure inlet that and self crankcase communicate, one and environment are inflated the outlet pipe that communicates, and it has advantage is that the CH discharging is lower.
Variable compression ratio air intake pressurized mode seven:
Advance according to each cylinder body top, the air inlet that outlet pipe and crankcase communicate, the mutual arrangement of pressure inlet is different, and many conspicuous organization plans can be arranged.Mechanical mechanism controls such as spiral or eccentric shaft also can be arranged in big cylinder block top, and the piston of removable up and down change cylinder capacity is realized variable compression ratio.The present invention also can use existing other technology useful to internal-combustion engine, also is conspicuous.
Description of drawings
Fig. 1 air intake pressurized mode one structural representation.
Fig. 2 air intake pressurized mode two structural representations.
Fig. 3 air intake pressurized mode three structural representations.
Fig. 4 air intake pressurized mode four structural representations.
Fig. 5 air intake pressurized mode five structural representations.
Fig. 6 air intake pressurized mode six structural representations.
Fig. 7 variable compression ratio air intake pressurized mode seven structural representations.
Embodiment
Embodiment one
Ultrahigh pressure double-circulation variable discharge internal-combustion engine is made up of with big cylinder 3 stingy cylinder 1 and 2. Stingy cylinder 1 and 2 air inlets are by natural inflow, and twice super charge of the crankcase of little cylinder own and big cylinder 3 compress inlet air are formed. Stingy cylinder 1 and 2 is made up of cylinder body and crankcase.There is a suction tude cylinder body top, the pressure inlet that one-way valve is arranged that communicates with crankcase, and an outlet pipe and big cylinder 3 link.
Embodiment two
Ultrahigh pressure double-circulation variable discharge internal-combustion engine is made up of big cylinder 9 compress inlet air stingy cylinder 7 and 8 air inlets. Stingy cylinder 7 and 8 crankcases then are pressed into air inlet the crankcase of big cylinder 9, have increased the air inflow of big cylinder 9, have increased big cylinder 9 compressed air inputs indirectly. Stingy cylinder 7 and 8 is made up of cylinder body and crankcase.The cylinder body top only has a shared pipe of intake and exhaust and big cylinder 9 to link.Because the enough stingy cylinder 7 of air inflow of big cylinder 9 and 8 supercharging circulation, natural inflow can be cast out, and stingy cylinder 7 and 8 cylinder bodies top only have a shared pipe of intake and exhaust and big cylinder 9 to link.Processing technology is simply many.
Embodiment three
Claims (9)
1, a kind of superhigh boosting double-circulation variable discharge internal-combustion engine, its structure is made of two little cylinders and its middle big cylinder, the swept volume of big cylinder be two little cylinders separately swept volume 1.5-30 doubly, they are on same bent axle, two little cylinders and its middle big cylinder stroke differ 180 degree, the stroke of two little cylinders differs 360 degree, big cylinder in the middle of the outlet pipe of two little cylinders and its communicates, and the crankcase that pressurization is arranged of cylinder broad in the middle has the breathing pipe that leads to self cylinder or other crankcase.
2, have supercharging circuit cylinder, cylinder (1) is made up of cylinder body and crankcase, and there is a suction tude of leading to ambient air the cylinder body top, the pressure inlet that one-way valve is arranged that communicates with the crankcase that pressurization is arranged self, an outlet pipe.
3, superhigh boosting double-circulation variable discharge internal-combustion engine according to claim 1, its structure is made up of by cylinder body with by the crankcase of pressurization little cylinder (1) and (2), there is a suction tude cylinder body top, the pressure inlet that one-way valve is arranged that communicates with crankcase, an outlet pipe and big cylinder (3) link.
4, superhigh boosting double-circulation variable discharge internal-combustion engine according to claim 1, its structure is made up of by cylinder body with by the crankcase of pressurization little cylinder (4) and (5), and there is a suction tude cylinder body top, and an outlet pipe and big cylinder (6) link.
5, superhigh boosting double-circulation variable discharge internal-combustion engine according to claim 1, its structure only have a shared pipe of intake and exhaust and big cylinder (9) to link above forming cylinder body by little cylinder (7) and (8) by cylinder body with by the crankcase of pressurization.
6, superhigh boosting double-circulation variable discharge internal-combustion engine according to claim 1, its structure by little cylinder (10) and (11) air inlet by natural inflow, little cylinder itself has twice super charge of crankcase of pressurization and big cylinder (12) compress inlet air to form, and little cylinder (10) and (11) are made up of cylinder body and crankcase.There is a suction tude cylinder body top, and the pressure inlet that one-way valve is arranged that communicates with crankcase has intercooler (13) on the pressure inlet, and an outlet pipe and big cylinder (12) link.
7, superhigh boosting double-circulation variable discharge internal-combustion engine according to claim 1, its structure is made up of by cylinder body with by the crankcase of pressurization little cylinder (14) and (15).There is a pressure inlet that one-way valve is arranged that communicates with crankcase the cylinder body top, and an outlet pipe and big cylinder (16) link.
8, superhigh boosting double-circulation variable discharge internal-combustion engine according to claim 1, the suction tude (being the outlet pipe of stingy cylinder 17 and 18) that its structure has two and little cylinder (17) and (18) to link by big cylinder (19) cylinder body top, the pressure inlet that one and self crankcase communicate, one and environment are inflated the outlet pipe that communicates.
9, superhigh boosting double-circulation variable discharge internal-combustion engine according to claim 1, its structure is made up of little cylinder (20) and (21) and big cylinder (22).Little cylinder (20) and (21) are formed by cylinder body with by the crankcase of pressurization, and cylinder body top has a shared pipe of intake and exhaust and big cylinder (22) to link, and have controllable, the piston of removable up and down change cylinder capacity.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100125676A CN100360773C (en) | 2006-04-06 | 2006-04-06 | Superhigh boosting double-circulation variable discharge I.C. engine |
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| CNB2006100125676A CN100360773C (en) | 2006-04-06 | 2006-04-06 | Superhigh boosting double-circulation variable discharge I.C. engine |
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| CN1834422A true CN1834422A (en) | 2006-09-20 |
| CN100360773C CN100360773C (en) | 2008-01-09 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220908A (en) * | 2010-04-19 | 2011-10-19 | 张焱凯 | Multi-cylinder cooperation engine with variable compression ratio |
| CN102392731A (en) * | 2011-09-16 | 2012-03-28 | 白云龙 | High-multiple compression ratio method for four-stroke internal combustion engine |
| CN102852633A (en) * | 2011-08-18 | 2013-01-02 | 摩尔动力(北京)技术股份有限公司 | Unequal loading capacity piston-type thermal power system |
| CN103244256A (en) * | 2012-02-08 | 2013-08-14 | 通用汽车环球科技运作有限责任公司 | Internal combustion engine utilizing dual compression and single expansion process |
| CN104100358A (en) * | 2014-07-08 | 2014-10-15 | 邱世军 | Supercharged engine |
| CN104100361A (en) * | 2014-07-24 | 2014-10-15 | 邱世军 | Two-stage supercharged engine |
| CN105986938A (en) * | 2015-02-04 | 2016-10-05 | 深圳市福田区青少年科技教育协会 | Multistage combustion environment-friendly engine |
| CN107489520A (en) * | 2017-06-12 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Automobile and its engine |
| CN111520212A (en) * | 2020-04-30 | 2020-08-11 | 广西玉柴机器股份有限公司 | Method for preventing water vapor of crankcase ventilation system from condensing |
| CN116368290A (en) * | 2020-08-28 | 2023-06-30 | Cae(Ip)有限公司 | Single cylinder reciprocating piston composite ICE/ORC power device |
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| AT397838B (en) * | 1985-04-02 | 1994-07-25 | Bruecker Helmut Dr | PISTON PISTON ENGINE |
| BE1002364A4 (en) * | 1988-12-30 | 1991-01-15 | Schmitz Gerhard | TWO - STAGE INTERNAL COMBUSTION ENGINE. |
| AU3366393A (en) * | 1992-12-22 | 1994-07-19 | Antonio Bernardini | An alternative engine with internal combustion, and with rotating distribution and/or exploitation of the air reserve in the carter |
| JPH07109929A (en) * | 1993-10-12 | 1995-04-25 | Yamaha Motor Co Ltd | Multiple intake valve type engine |
| JP3767716B2 (en) * | 1997-07-07 | 2006-04-19 | 本田技研工業株式会社 | Spark-ignition 4-cycle internal combustion engine with supercharged pump |
| DE19848890B4 (en) * | 1998-10-23 | 2011-03-17 | Andreas Stihl Ag & Co. | Four-stroke engine |
| CN2437864Y (en) * | 2000-08-26 | 2001-07-04 | 陈宾 | Variable displacement engine |
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| CN2511795Y (en) * | 2001-12-19 | 2002-09-18 | 周义农 | Two stroke IC engine with scavenging cylinder |
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- 2006-04-06 CN CNB2006100125676A patent/CN100360773C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220908A (en) * | 2010-04-19 | 2011-10-19 | 张焱凯 | Multi-cylinder cooperation engine with variable compression ratio |
| CN102852633A (en) * | 2011-08-18 | 2013-01-02 | 摩尔动力(北京)技术股份有限公司 | Unequal loading capacity piston-type thermal power system |
| CN102392731A (en) * | 2011-09-16 | 2012-03-28 | 白云龙 | High-multiple compression ratio method for four-stroke internal combustion engine |
| CN103244256A (en) * | 2012-02-08 | 2013-08-14 | 通用汽车环球科技运作有限责任公司 | Internal combustion engine utilizing dual compression and single expansion process |
| CN104100358A (en) * | 2014-07-08 | 2014-10-15 | 邱世军 | Supercharged engine |
| CN104100361A (en) * | 2014-07-24 | 2014-10-15 | 邱世军 | Two-stage supercharged engine |
| CN105986938A (en) * | 2015-02-04 | 2016-10-05 | 深圳市福田区青少年科技教育协会 | Multistage combustion environment-friendly engine |
| CN107489520A (en) * | 2017-06-12 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Automobile and its engine |
| CN111520212A (en) * | 2020-04-30 | 2020-08-11 | 广西玉柴机器股份有限公司 | Method for preventing water vapor of crankcase ventilation system from condensing |
| CN116368290A (en) * | 2020-08-28 | 2023-06-30 | Cae(Ip)有限公司 | Single cylinder reciprocating piston composite ICE/ORC power device |
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|---|---|
| CN100360773C (en) | 2008-01-09 |
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Granted publication date: 20080109 Termination date: 20120406 |