CN1928333A - Internal-combustion engine - Google Patents
Internal-combustion engine Download PDFInfo
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- CN1928333A CN1928333A CNA2006101417686A CN200610141768A CN1928333A CN 1928333 A CN1928333 A CN 1928333A CN A2006101417686 A CNA2006101417686 A CN A2006101417686A CN 200610141768 A CN200610141768 A CN 200610141768A CN 1928333 A CN1928333 A CN 1928333A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention relates to an internal-combustion engine with piston reciprocating, comprising body, cover, piston, crankshaft and connecting bar. The piston moves advance and return and is connected with crankshaft through connecting bar. The space on the top of piston sealed by cover is formed blast chamber. Intake valve, air outlet valve and spark plug are set in cover at the top of blast chamber. In said body except blast chamber air compressed unit is set, which comprises inhalation valve, air outlet valve, assistant piston, which can move advance and return, and be connected with said crank shaft through assistant connecting bare, and assistant connecting bar. The outlet of air outlet valve is connected to hollow air conversation room withstanding pressure, in which thermal converter, temperature sensor, fuel nozzle and fuel evaporating and mixing room. The outlet of air conversation room is connected to said inlet of intake valve in blast chamber. The invention can decrease harmful gas NOx released largely because of low temperature, improve work efficiency of gas and decrease burning noise.
Description
Technical field
The present invention relates to a kind of piston reciprocating internal combustion engine.
Background technique
At present, known piston reciprocating internal combustion engine working principle has by " air inlet " stroke, " compression " stroke, the four-stroke that " burning expansion " stroke and " exhaust " stroke are formed and these two kinds of patterns of two-stroke of forming by " compression (and ventilation) " stroke and " burning expansion (and ventilation) " stroke, their common features are: compression and combustion expansion process are all finished in the firing chamber, be in the firing chamber, to enter combustion expansion process again immediately gas working medium (fresh air or petrol-air mixture) is compressed into High Temperature High Pressure in the firing chamber after, therefore give and bring following principle defective in the practical application:
1. because high combustion temperature has caused a large amount of oxynitrides NOx noxious gas emissions,, have to adopt complicated again tail-gas after treatment apparatus with high costs for satisfying the noxious gas emission standard of increasingly stringent;
2. for ignition internal combustion engine (as petrol engine), for avoiding pinking (petrol-air mixture causes the fuel local self phenomenon of catching fire in compression process because of High Temperature High Pressure), the compression ratio of having to is controlled at a relatively low level, and petroleum refining industry also will spend the great number cost to improve the capability of antidetonance index of fuel simultaneously;
3. compression ratio can reduce the NOx discharging to a certain extent and to the requirement of fuel antiknock quality, low compression ratio just means low combustion efficiency, promptly low fuel economy though reduce;
4. for pursuing higher combustion efficiency, combustion process all is controlled at piston as far as possible and crosses near the top dead center, and descent of piston speed is slow at this moment, the rate of pressure rise is higher, causes than great machinery impact force and combustion noise.And reduce most of measure of mechanical impact force and combustion noise, as reduce compression ratio, postpone ignition timing and prolongation catch fire period etc. all inevitable be cost to sacrifice fuel economy.
Summary of the invention
Be the four-stroke that overcomes current widespread usage and the above-mentioned principle technological deficiency of two stroke IC engine, the present invention's first purpose is to provide a kind of can adopt higher compression ratio, but that maximum combustion temperature can remain on is in the lower and controlled scope, that the thermal efficiency is high, oxynitrides NOx discharging is low, vibrations and the low ignition internal combustion engine of noise pollution.
The present invention's first purpose is to realize like this.
A kind of internal-combustion engine, comprise cylinder body, cylinder cap, piston, crankshaft-and-connecting-rod, piston to-and-fro motion and link to each other with bent axle in cylinder body by connecting rod, the piston head space is by cylinder cap sealing formation firing chamber, the cylinder cap of top, firing chamber is provided with suction valve, outlet valve and spark plug, also be provided with the air compression unit in the cylinder body outside the described firing chamber, the air compression unit comprises Aspirating valves, gas outlet valve, sub-piston and slave connecting rod, sub-piston to-and-fro motion and link to each other with described bent axle in the air compression unit by slave connecting rod, the gas outlet valve outlet is connected to the gas storage chamber of a withstand voltage hollow, be provided with heat exchanger in the gas storage chamber, temperature transducer, fuel nozzle and fuel vaporization mixing chamber, gas storage chamber outlet are connected to described firing chamber suction valve inlet.
Above-mentioned purpose also can be done further perfect by the following technical programs.
Described outlet valve is opened during in piston arrives or near lower dead center, is closed when arriving top dead center, described inlet open of while, piston moves downward to 10～45 and writes music air-fuel mixture amount in Shaft angle, the firing chamber when reaching setting value immediately, and suction valve cuts out plug ignition simultaneously.
Be the four-stroke that overcomes current widespread usage and the above-mentioned principle technological deficiency of two stroke IC engine, the present invention's second purpose is to provide a kind of can adopt higher compression ratio, but that maximum combustion temperature can remain on is in the lower and controlled scope, that the thermal efficiency is high, oxynitrides NOx discharging is low, vibrations and the low compression ignition internal combustion engine of noise pollution.
The present invention's second purpose is to realize like this.
A kind of internal-combustion engine, comprise cylinder body, cylinder cap, piston, crankshaft-and-connecting-rod, piston to-and-fro motion and link to each other with bent axle in cylinder body by connecting rod, the piston head space is by cylinder cap sealing formation firing chamber, be provided with suction valve in the cylinder cap above the firing chamber, outlet valve and oil sprayer, also be provided with the air compression unit in the cylinder body outside the described firing chamber, the air compression unit comprises Aspirating valves, gas outlet valve, sub-piston and slave connecting rod, sub-piston to-and-fro motion and link to each other with described bent axle in the air compression unit by slave connecting rod, the gas outlet valve outlet is connected to the gas storage chamber of a withstand voltage hollow, be provided with heat exchanger and temperature transducer in the gas storage chamber, the gas storage chamber outlet is connected to described firing chamber suction valve inlet.
Above-mentioned purpose also can be done further perfect by the following technical programs.
Described outlet valve is opened during in piston arrives or near lower dead center, is closed when arriving top dead center, described inlet open of while, piston moves downward to 30～45 and writes music air quantity in Shaft angle, the firing chamber when reaching setting value immediately, and suction valve cuts out simultaneously oil sprayer and opens oil spout.
of the present invention finishes circulate necessary compression and two processes of work by combustion of an internal combustion engine and separately finishes in two special device high-pressure air compression units and firing chamber.Compression process is finished in the high-pressure air compression unit, and combustion process is finished in the firing chamber.After air compression unit fresh air is pre-compressed to High Temperature High Pressure, charge into one and be with storage in the temperature controlled gas storage chamber, through spraying into petrol-air mixture (or connects the fresh air) the introducing firing chamber that fuel forms, in the firing chamber, finish a novel two stroke operation circulation of forming by " air inlet, burning expansion acting " stroke and " exhaust " stroke, realize externally output mechanical work.
When being applied to ignition internal combustion engine, in cylinder cap, top, firing chamber also is provided with spark plug, be provided with heat exchanger, temperature transducer, fuel nozzle and fuel vaporization mixing chamber in the gas storage chamber, the High Temperature High Pressure fresh air of heat exchanger after by precompression is cooled to the setting temperature that is lower than the fuel self-ignition point, a certain amount of fuel of fuel nozzle sprays into the fuel vaporization mixing chamber then, mix the petrol-air mixture that forms evenly and the air fuel ratio that is suitable for burning is arranged with the fresh air evaporation, the gas storage chamber outlet is connected to combustion chamber unit suction valve inlet.In combustion chamber unit, " air inlet; burning expansion acting " stroke is finished like this: when the piston arrives top dead center (bags minimum this moment), close outlet valve, open suction valve, the petrol-air mixture of High Temperature High Pressure in the gas storage chamber is connected with the firing chamber, along with piston moves downward to 10～45 Shaft angles of writing music, when the petrol-air mixture amount in the firing chamber reaches setting value, suction valve cuts out simultaneously and lights petrol-air mixture by plug ignition, fire burns is taking place, the air expanded by heating promotes descent of piston in the cylinder, piston externally does work by connecting rod and crank mechanism, except that auxiliary dress such as driving air compression unit, dump energy is externally exported by bent axle, is to piston arrives or during near lower dead center, exhaust valve opening, and " air inlet; burning expansion acting " finishes;
When being applied to compression ignition internal combustion engine, in cylinder cap, top, firing chamber also is provided with oil sprayer, be provided with heat exchanger and temperature transducer in the gas storage chamber, the High Temperature High Pressure fresh air of heat exchanger after by precompression is cooled to setting temperature, and the gas storage chamber outlet is connected to combustion chamber unit suction valve inlet.In combustion chamber unit, " air inlet; burning expansion acting " stroke is finished like this: when the piston arrives top dead center (bags minimum this moment), close outlet valve, open suction valve, the fresh air of High Temperature High Pressure in the gas storage chamber is connected with the firing chamber, along with piston moves downward to 30～45 Shaft angles of writing music, when the amount of fresh air in the firing chamber reaches setting value, suction valve cuts out the oil spout of oil sprayer unlatching simultaneously, fuel spray is met the fresh air that is higher than its spontaneous ignition temperature, fire burns is taking place voluntarily, the air expanded by heating promotes descent of piston in the cylinder, piston externally does work by connecting rod and crank mechanism, except that driving auxiliary dress such as air compression unit, dump energy is externally exported by bent axle, and arrives piston arrives or during near lower dead center, exhaust valve opening, " air inlet; burning expansion acting " finishes.
No matter be applied to Spark ignition type or compression ignition internal combustion engine, in combustion chamber unit, " exhaust " stroke is all finished like this: the piston arrives lower dead center and open outlet valve after, piston begins up waste gas and releases the firing chamber by outlet valve, is to the piston arrives top dead center, close outlet valve, open suction valve, enter next two stroke operation circulation.
Therefore, engine crankshaft whenever circles, and (360 spend, piston moves to lower dead center from top dead center during this, then move to top dead center from lower dead center again), in the firing chamber, promptly finish a novel two stroke operation circulation of forming by " air inlet, burning expansion acting " stroke and " exhaust " stroke, wherein 0～180 write music during the Shaft angle, piston moves to lower dead center from top dead center and is " air inlet, burning expansion acting " stroke; 180～360 write music during the Shaft angle, and it is " exhaust " stroke that piston moves to top dead center from lower dead center.The air compression unit is as an annex, for combustion chamber unit provides high pressure-temperature fresh air endlessly.
When being applied to Spark ignition type, can in the scope of non-constant width, select fuel for use, as gasoline, diesel oil, thing oil, Aalcohols fuel and gaseous fuel etc.; Be applied to when compression-ignited, then should adopt the fuel of low spontaneous ignition temperature, as diesel oil etc.
Owing to finish a necessary compression of engine cycle and two processes of burning are separated to finish in its special device, make gas pressure and temperature before the fuel fire burning can obtain having more flexibility and more accurate control, so the present invention can obtain following beneficial effect:
Harmful gas NOx significantly reduces because of the reduction of combustion temperature, must the reprocessing measure just can not reach very strict emission control standards;
The fuel fire combustion process occurs in atdc, piston has in the section of higher downstream rate, burning rate of heat liberation and the rate of pressure rise of cylinder maximum explosive pressure and relative crank angle can be very not high be can further improve, combustion gas mechanical efficiency, reduction combustion noise helped improving;
The suction valve channel cross-section of the gas outlet valve of compressor and master cylinder is less, thereby can abdicate bigger compressor air suction valve and master cylinders outlet valve actual internal area, has reduced pumping loss, has improved useful horsepower output;
More specialized design all can be carried out in aspects such as the discharge capacity of master cylinder and air compressor, piston linear velocity, material and cool condition, can realize that the master cylinder number is not equal to the structural configuration of air compressor cylinder number, help reducing cost, improve the complete machine power-mass ratio;
When adopting the spark ignitor mode, improved the adaptability of fuel technology index, adjusted few parameters and just can realize that pluralities of fuel is general.
Description of drawings
Fig. 1 is the organigram of first embodiment of the invention Spark ignition type.
Fig. 2 is the working procedure schematic representation of first embodiment of the invention Spark ignition type.
Fig. 3 is the compression-ignited organigram of second embodiment of the invention.
Fig. 4 is the compression-ignited working procedure schematic representation of second embodiment of the invention.
Among the figure: 1. bent axle, 2. slave connecting rod, 3. sub-piston, 4. air compression unit, 5. suction tude, 6. Aspirating valves, 7. gas outlet valve, 8. gas storage chamber, 9. heat exchanger, 10. temperature transducer, 11. suction valve, 12. suction valve cams, 13. oil sprayers, 14. exhaust-valve cams, 15. outlet valve, 16. outlet pipes, 17. cylinder caps, 18. firing chambers, 19. piston, 20. cylinder bodies, 21. connecting rods, 22. fuel nozzles, 23. fuel vaporization mixing chamber, 24. suction valves drive dress , 25. suction valve position transducers, 26. spark plugs.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment 1, in conjunction with Fig. 1 and Fig. 2, shown among first embodiment, internal combustion engine is in ignition way and adopt gasoline to act as a fuel.Unit 18, firing chamber comprise cylinder body 20, cylinder cap 17, piston 19, bent axle 1 and connecting rod 21, piston 19 to-and-fro motion in cylinder body 20 also links to each other with bent axle 1 by connecting rod 21, piston 19 head rooms form firing chamber 18 by cylinder cap 17 sealings, in cylinder cap 17,18 tops, firing chamber are provided with suction valve 11, outlet valve 15 and spark plug 26, suction valve 11 drives dress 24 by suction valve and drives, outlet valve 15 is driven by exhaust-valve cam 14, suction valve drives dress 24 and is provided with air inlet valve position sensor 25, also be provided with air compression unit 4 in the cylinder body 20 outside the firing chamber 18, air compression unit 4 comprises Aspirating valves 6, gas outlet valve 7, sub-piston 3 and slave connecting rod 2, sub-piston 3 to-and-fro motion in air compression unit 4 also links to each other with bent axle 1 by slave connecting rod 2, gas outlet valve 7 outlets are connected to the gas storage chamber 8 of a withstand voltage hollow, be provided with heat exchanger 9 in the gas storage chamber 8, temperature transducer 10, fuel nozzle 22 and fuel vaporization mixing chamber 23, gas storage chamber 8 outlets are connected to described firing chamber 18 suction valves, 11 inlets.
Shown in Fig. 2-3., fresh air is from suction tude 5, after Aspirating valves 6 sucks and is pre-compressed to about 30～60bar (being equivalent to compression ratio about 13～23) in the high-pressure air compression unit 4, charging into gas storage chamber 8 stores, heat exchanger 9 fresh airs in the gas storage chamber 8 are cooled to setting temperature, shown in Fig. 2-1., when piston 19 arrives top dead center (firing chamber 18 space minimums this moment), close outlet valve 15, open suction valve 11, the petrol-air mixture of High Temperature High Pressure in the gas storage chamber 8 is connected with firing chamber 18, shown in Fig. 2-2., along with piston 19 moves downward to 10～45 Shaft angles of writing music, when the petrol-air mixture amount in the firing chamber 18 reaches setting value, suction valve 11 cuts out simultaneously and lights petrol-air mixture by spark plug 26, fire burns is taking place, it is descending that the air expanded by heating promotes piston 19 in the cylinder, piston 19 externally does work by connecting rod 21 and bent axle 1 mechanism, except that driving such as auxiliary dress such as air compression unit 4 grades, dump energy is externally exported by bent axle 1, arrives or during near lower dead center to piston 19, shown in Fig. 2-4., outlet valve 15 is opened, release firing chamber 18 to outlet pipe 16 with the up waste gas of back piston 19 beginnings, arrives top dead center to piston 19, close outlet valve 15, open suction valve 11, enter next work cycle.
Embodiment 2, in conjunction with Fig. 3 and Fig. 4, shown among second embodiment, internal combustion engine is in the compression ignite mode and adopt diesel oil to act as a fuel.Unit 18, firing chamber comprise cylinder body 20, cylinder cap 17, piston 19, bent axle 1 and connecting rod 21, piston 19 to-and-fro motion in cylinder body 20 also links to each other with bent axle 1 by connecting rod 21, piston 19 head rooms form firing chamber 18 by cylinder cap 17 sealings, in cylinder cap 17,18 tops, firing chamber are provided with suction valve 11, outlet valve 15 and oil sprayer 13, suction valve 11 is driven by suction valve cam 12, outlet valve 15 is driven by exhaust-valve cam 14, also be provided with air compression unit 4 in the cylinder body 20 outside the firing chamber 18, air compression unit 4 comprises Aspirating valves 6, gas outlet valve 7, sub-piston 3 and slave connecting rod 2, sub-piston 3 to-and-fro motion in air compression unit 4 also links to each other with bent axle 1 by slave connecting rod 2, gas outlet valve 7 outlets are connected to the gas storage chamber 8 of a withstand voltage hollow, be provided with heat exchanger 9 and temperature transducer 10 in the gas storage chamber 8, gas storage chamber 8 outlets are connected to described firing chamber 18 suction valves, 11 inlets.
Shown in Fig. 4-3., fresh air is from suction tude 5, after Aspirating valves 6 sucks and is pre-compressed to about 30～60bar (being equivalent to compression ratio about 13～23) in the high-pressure air compression unit 4, charging into gas storage chamber 8 stores, heat exchanger 9 fresh airs in the gas storage chamber 8 are cooled to setting temperature, shown in Fig. 4-1., when piston 19 arrives top dead center (firing chamber 18 space minimums this moment), close outlet valve 15, open suction valve 11, gas storage chamber 8 interior fresh airs are connected with firing chamber 18, shown in Fig. 4-2., along with piston 19 moves downward to 30～45 Shaft angles of writing music, when the air quantity in the firing chamber 18 reaches setting value, suction valve 11 cuts out oil sprayer 13 unlatching oil spouts simultaneously, fuel spray is met the fresh air that is higher than its spontaneous ignition temperature, fire burns is taking place voluntarily, it is descending that the air expanded by heating promotes piston 19 in the cylinder, piston 19 externally does work by connecting rod 21 and bent axle 1 mechanism, except that driving air compression unit 4 auxiliary devices such as grade, dump energy is externally exported by bent axle 1, arrives or during near lower dead center to piston 19, shown in Fig. 4-4., outlet valve 15 is opened, release firing chamber 18 to outlet pipe 16 with the up waste gas of back piston 19 beginnings, arrives top dead center to piston 19, close outlet valve 15, open suction valve 11, enter next work cycle.
Claims (4)
1, a kind of internal-combustion engine, comprise cylinder body, cylinder cap, piston, crankshaft-and-connecting-rod, piston to-and-fro motion and link to each other with bent axle in cylinder body by connecting rod, the piston head space is by cylinder cap sealing formation firing chamber, the cylinder cap of top, firing chamber is provided with suction valve, outlet valve and spark plug, it is characterized in that: also be provided with the air compression unit in the cylinder body outside the described firing chamber, the air compression unit comprises Aspirating valves, gas outlet valve, sub-piston and slave connecting rod, sub-piston to-and-fro motion and link to each other with described bent axle in the air compression unit by slave connecting rod, the gas outlet valve outlet is connected to the gas storage chamber of a withstand voltage hollow, be provided with heat exchanger in the gas storage chamber, temperature transducer, fuel nozzle and fuel vaporization mixing chamber, the gas storage chamber outlet is connected to described firing chamber suction valve population.
2, internal-combustion engine according to claim 1, it is characterized in that: described outlet valve is opened during in piston arrives or near lower dead center, is closed when arriving top dead center, described inlet open of while, piston moves downward to 10～45 and writes music air-fuel mixture amount in Shaft angle, the firing chamber when reaching setting value immediately, and suction valve cuts out plug ignition simultaneously.
3, a kind of internal-combustion engine, comprise cylinder body, cylinder cap, piston, crankshaft-and-connecting-rod, piston to-and-fro motion and link to each other with bent axle in cylinder body by connecting rod, the piston head space is by cylinder cap sealing formation firing chamber, be provided with suction valve in the cylinder cap above the firing chamber, outlet valve and oil sprayer, it is characterized in that: also be provided with the air compression unit in the cylinder body outside the described firing chamber, the air compression unit comprises Aspirating valves, gas outlet valve, sub-piston and slave connecting rod, sub-piston to-and-fro motion and link to each other with described bent axle in the air compression unit by slave connecting rod, the gas outlet valve outlet is connected to the gas storage chamber of a withstand voltage hollow, be provided with heat exchanger and temperature transducer in the gas storage chamber, the gas storage chamber outlet is connected to described firing chamber suction valve inlet.
4, internal-combustion engine according to claim 3, it is characterized in that: described outlet valve is opened during in piston arrives or near lower dead center, is closed when arriving top dead center, described inlet open of while, piston moves downward to 30～45 and writes music air quantity in Shaft angle, the firing chamber when reaching setting value immediately, and suction valve cuts out simultaneously oil sprayer and opens oil spout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101417686A CN1928333A (en) | 2006-10-01 | 2006-10-01 | Internal-combustion engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101417686A CN1928333A (en) | 2006-10-01 | 2006-10-01 | Internal-combustion engine |
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| CN1928333A true CN1928333A (en) | 2007-03-14 |
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| CNA2006101417686A Pending CN1928333A (en) | 2006-10-01 | 2006-10-01 | Internal-combustion engine |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767422A (en) * | 2011-07-07 | 2012-11-07 | 摩尔动力(北京)技术股份有限公司 | Internal-combustion gas compressor |
| CN102865172A (en) * | 2012-09-20 | 2013-01-09 | 金华三人科技有限公司 | Fuel spraying system for utilizing heat pipe technology to extract heat vaporized diesel oil from exhaust gas |
| CN104185728A (en) * | 2012-04-18 | 2014-12-03 | 宝马股份公司 | Volume-controlled four-stroke reciprocating internal combustion engine and method for operating the four-stroke reciprocating internal combustion engine |
| CN105927378A (en) * | 2016-06-30 | 2016-09-07 | 苏喜清 | Two-stroke engine transformed from four-stroke engine and working method of two-stroke engine |
| WO2019018954A1 (en) * | 2017-07-14 | 2019-01-31 | 邹国泉 | Isothermal compression preheating internal combustion engine |
| CN109519273A (en) * | 2019-01-23 | 2019-03-26 | 谢炳炎 | A kind of separated type super large expansion ratio engine and regulation method |
| CN110700940A (en) * | 2019-05-30 | 2020-01-17 | 周华文 | Tandem type piston engine |
| CN113389639A (en) * | 2020-03-12 | 2021-09-14 | 赵天安 | Engine with compression ratio adjusting mechanism |
| CN114878741A (en) * | 2022-06-14 | 2022-08-09 | 郑州信息科技职业学院 | Test device for researching fuel evaporation combustion characteristics in supercritical environment |
| CN116171348A (en) * | 2020-08-13 | 2023-05-26 | Fpt工业股份公司 | Split-cycle internal combustion engine |
-
2006
- 2006-10-01 CN CNA2006101417686A patent/CN1928333A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767422A (en) * | 2011-07-07 | 2012-11-07 | 摩尔动力(北京)技术股份有限公司 | Internal-combustion gas compressor |
| CN104185728A (en) * | 2012-04-18 | 2014-12-03 | 宝马股份公司 | Volume-controlled four-stroke reciprocating internal combustion engine and method for operating the four-stroke reciprocating internal combustion engine |
| US9587553B2 (en) | 2012-04-18 | 2017-03-07 | Bayerische Motoren Werke Aktiengesellschaft | Volume-controlled four-stroke reciprocating internal combustion engine and method for operating the four-stroke reciprocating internal combustion engine |
| CN102865172A (en) * | 2012-09-20 | 2013-01-09 | 金华三人科技有限公司 | Fuel spraying system for utilizing heat pipe technology to extract heat vaporized diesel oil from exhaust gas |
| CN105927378A (en) * | 2016-06-30 | 2016-09-07 | 苏喜清 | Two-stroke engine transformed from four-stroke engine and working method of two-stroke engine |
| WO2019018954A1 (en) * | 2017-07-14 | 2019-01-31 | 邹国泉 | Isothermal compression preheating internal combustion engine |
| CN109519273A (en) * | 2019-01-23 | 2019-03-26 | 谢炳炎 | A kind of separated type super large expansion ratio engine and regulation method |
| CN110700940A (en) * | 2019-05-30 | 2020-01-17 | 周华文 | Tandem type piston engine |
| CN113389639A (en) * | 2020-03-12 | 2021-09-14 | 赵天安 | Engine with compression ratio adjusting mechanism |
| CN113389639B (en) * | 2020-03-12 | 2022-09-27 | 赵天安 | Engine with compression ratio adjusting mechanism |
| CN116171348A (en) * | 2020-08-13 | 2023-05-26 | Fpt工业股份公司 | Split-cycle internal combustion engine |
| CN114878741A (en) * | 2022-06-14 | 2022-08-09 | 郑州信息科技职业学院 | Test device for researching fuel evaporation combustion characteristics in supercritical environment |
| CN114878741B (en) * | 2022-06-14 | 2023-06-23 | 郑州信息科技职业学院 | Test device for researching fuel evaporation combustion characteristics under supercritical environment |
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Open date: 20070314 |