CN113309594B - Compressed air fuel engine - Google Patents
Compressed air fuel engine Download PDFInfo
- Publication number
- CN113309594B CN113309594B CN202110644701.9A CN202110644701A CN113309594B CN 113309594 B CN113309594 B CN 113309594B CN 202110644701 A CN202110644701 A CN 202110644701A CN 113309594 B CN113309594 B CN 113309594B
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- Prior art keywords
- piston
- valve
- dead point
- pressure
- compressed air
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10026—Plenum chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1015—Air intakes; Induction systems characterised by the engine type
- F02M35/10157—Supercharged engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/104—Intake manifolds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/12—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention discloses a compressed air fuel engine, which comprises a cylinder body, wherein a piston is arranged on the inner side of the cylinder body, a connecting rod is arranged at the bottom end of the piston, a crankshaft is arranged at the bottom end of the connecting rod, an air inlet manifold is arranged on one side of the top end of the cylinder body, an air inlet valve is arranged at the bottom end of the inner side of the air inlet manifold, an exhaust manifold is arranged on the other side of the top end of the cylinder body, an exhaust valve is arranged at the bottom end of the inner side of the exhaust manifold, a high-pressure oil nozzle is arranged at the top end of one side of the cylinder body, a tappet is arranged in the middle of the top end of the cylinder body, a push rod is arranged at the top end of the tappet, a spark plug is arranged on one side of the push rod, and a rocker arm is arranged at the top end of the push rod; through having designed this engine, improved the structural style and the mode of admitting air of intake valve, improved air inlet efficiency and speed, can still have higher air inlet efficiency under high rotational speed, its compression ratio is great simultaneously, and combustion temperature is lower, and nitrogen oxygen and harmful particulate matter emission are lower, more environmental protection.
Description
Technical Field
The invention relates to the technical field of engines, in particular to a compressed air fuel engine.
Background
The existing four-stroke gasoline engine is developed to the present day for century, but the thermal efficiency is improved, but the thermal efficiency is always at a lower level, about 30-40%, compared with a diesel engine, because the compression ratio is lower than that of the diesel engine, the compression ratio of a gasoline engine is 8-10, and the compression ratio of the diesel engine can be as high as 20, therefore, the lower compression ratio limits the improvement of the thermal efficiency of the gasoline engine, the power density of the four-stroke engine is lower than that of a two-stroke engine, because the four-stroke engine has one power stroke every two rounds, and the two-stroke engine has one power stroke every round, which limits the improvement of the power density of the four-stroke engine, and the operation efficiency is greatly discounted, so that the compressed air fuel engine is proposed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the compressed air fuel engine, and by designing the engine, the structural form and the air inlet mode of the air inlet valve are improved, the air inlet efficiency and the speed are improved, the engine still has higher air inlet efficiency at a high rotating speed, meanwhile, the compression ratio is larger, the combustion temperature is lower, and the emission of nitrogen, oxygen and harmful particles is lower, so that the engine is more environment-friendly.
In order to solve the technical problems, the invention provides the following technical scheme: the compressed air fuel engine comprises a cylinder body, the cylinder body inboard is provided with the piston, the piston bottom is provided with the connecting rod, the connecting rod bottom is provided with the bent axle, cylinder body top one side is provided with air intake manifold, air intake manifold inboard bottom is provided with the admission valve, cylinder body top opposite side is provided with exhaust manifold, exhaust manifold inboard bottom is provided with discharge valve, cylinder body one side top is provided with high-pressure fuel sprayer, just cylinder body top middle part is provided with the tappet, the tappet top is provided with the ejector pin, ejector pin one side is provided with the spark plug, just the ejector pin top is provided with the rocking arm, rocking arm bottom middle part is provided with the rocking arm pivot, just rocking arm top one side is provided with the intake valve spring.
As a preferable technical scheme of the invention, one end of the air inlet manifold is provided with an air storage tank, and one end of the air storage tank is connected with a compressor.
As a preferable technical scheme of the invention, the high-pressure oil nozzle is communicated with the inside of the cylinder body, and the high-pressure oil nozzle is in threaded connection with the cylinder body.
As a preferable technical scheme of the invention, the crankshaft is in transmission connection with the connecting rod.
Compared with the prior art, the invention has the following beneficial effects:
through having designed this engine, improved the structural style and the mode of admitting air of intake valve, improved air inlet efficiency and speed, can still have higher air inlet efficiency under high rotational speed, its compression ratio is great simultaneously, and combustion temperature is lower, and nitrogen oxygen and harmful particulate matter emission are lower, more environmental protection.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present invention;
FIG. 4 is a schematic diagram of a third embodiment of the present invention;
FIG. 5 is an enlarged schematic view of the structure of FIG. 4B according to the present invention;
wherein: 1. a crankshaft; 2. a connecting rod; 3. an intake valve; 4. an intake manifold; 5. an intake valve spring; 6. a rocker arm; 7. a rocker arm rotating shaft; 8. a push rod; 9. a spark plug; 10. an exhaust manifold; 11. an exhaust valve; 12. high-pressure oil spray nozzle; 13. a tappet; 14. a piston; 15. a cylinder block; 16. a top column; 17. a spool valve housing; 18. and a valve spool.
Detailed Description
In order that the manner in which the above recited features, objects and advantages of the present invention are obtained will become readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.
Example 1
As shown in fig. 1, the compressed air fuel engine comprises a cylinder block 15, a piston 14 is arranged on the inner side of the cylinder block 15, a connecting rod 2 is arranged at the bottom end of the piston 14, a crankshaft 1 is arranged at the bottom end of the connecting rod 2, an air inlet manifold 4 is arranged on one side of the top end of the cylinder block 15, an air inlet valve 3 is arranged at the bottom end of the inner side of the air inlet manifold 4, an exhaust manifold 10 is arranged on the other side of the top end of the cylinder block 15, an exhaust valve 11 is arranged at the bottom end of the inner side of the exhaust manifold 10, a high-pressure oil nozzle 12 is arranged at the top end of one side of the cylinder block 15, a tappet 13 is arranged in the middle of the top end of the cylinder block 15, a tappet 8 is arranged at the top end of the tappet 13, a spark plug 9 is arranged on one side of the tappet 8, a rocker arm 6 is arranged at the middle of the bottom end of the rocker arm 6, an air inlet valve spring 5 is arranged at one side of the top end of the rocker arm 6, an air inlet valve 4 is provided with an air storage tank, one end of the air storage tank is connected with a compressor, the high-pressure oil nozzle 12 is communicated with the inside the cylinder block 15, the high-pressure oil nozzle 12 is in threaded connection with the cylinder block 15, the crankshaft 1 is in transmission connection with the connecting rod 2;
in the suction stroke of the compressed air fuel engine, compressed high-temperature and high-pressure compressed air is sucked, the pressure of the compressed air is up to 2MPa, the temperature is up to 500-700 ℃, in the suction process, the top end of a piston 14 is propped up to and pushes a tappet 13 at a certain moment before the piston 14 reaches a top dead center, a rocker arm 6 is pushed upwards through a push rod 8, the other end of the rocker arm 6 runs downwards to overcome the pressure of an intake valve spring 5, an intake valve 3 is pushed and opened, high-pressure and high-temperature compressed air is pressed into a cylinder, the compressed air is continuously pressed into the cylinder as the piston 14 reaches a top dead center, then the piston 14 passes through the top dead center and enters a lower stroke, the top of the piston 14 is separated from the tappet 13, the intake valve 3 is completely closed, the high-pressure fuel injection nozzle 12 ejects high-atomized gasoline, then a spark plug 9 ignites, the gasoline instantaneously burns, the gas is heated and expands, the piston 14 is pushed downwards to accelerate to reach a bottom dead center, at a certain moment before the piston 14 reaches the bottom dead center, a stroke 11 controlled by a cam is opened, low-temperature and low-pressure exhaust gas is discharged to an exhaust manifold 10, and the exhaust valve 14 is discharged into the cylinder when the piston 14 passes the bottom dead center and enters the upper dead center to the upper dead center, and goes into the upper stroke to the upper dead center, the upper dead center and is opened until the exhaust valve 11 is repeatedly opened, and reaches a certain moment, and reaches the upper dead center; through having designed this engine, improved the structural style and the mode of admitting air of intake valve, improved air inlet efficiency and speed, can still have higher air inlet efficiency under high rotational speed, its compression ratio is great simultaneously, and combustion temperature is lower, and nitrogen oxygen and harmful particulate matter emission are lower, more environmental protection.
Example two
As shown in fig. 2 and 3, the compressed air fuel engine comprises a cylinder block 15, a piston 14 is arranged on the inner side of the cylinder block 15, a connecting rod 2 is arranged at the bottom end of the piston 14, a crankshaft 1 is arranged at the bottom end of the connecting rod 2, an intake manifold 4 is arranged on one side of the top end of the cylinder block 15, a slide valve shell 17 is arranged at the bottom end of the inner side of the intake manifold 4, a valve slide valve 18 is arranged at the bottom end of the inner side of the slide valve shell 17, a jack post 16 is arranged at the bottom end of the valve slide valve 18, intake valve springs 5 are arranged on two sides of the top end of the valve slide valve 18, an exhaust manifold 10 is arranged on the other side of the top end of the cylinder block 15, an exhaust valve 11 is arranged at the bottom end of the inner side of the exhaust manifold 10, and a spark plug 9 is arranged in the middle of the top end of the cylinder block 15;
by designing the position of the top post 16, the top post 16 does not need to pass through the slide valve shell 17, so that gas leakage is reduced, the whole weight is light, and the response speed of the valve can be improved.
Example III
As shown in fig. 4 and 5, the compressed air fuel engine comprises a cylinder block 15, a piston 14 is arranged on the inner side of the cylinder block 15, a connecting rod 2 is arranged at the bottom end of the piston 14, a crankshaft 1 is arranged at the bottom end of the connecting rod 2, an intake manifold 4 is arranged on one side of the top end of the cylinder block 15, a slide valve shell 17 is arranged at the bottom end of the inner side of the intake manifold 4, a valve slide valve 18 is arranged at the bottom end of the inner side of the slide valve shell 17, a jack post 16 is arranged at the bottom end of the valve slide valve 18, the top end of the jack post 16 penetrates through the valve slide valve 18 and the slide valve shell 17, an intake valve spring 5 is arranged at the top end of the jack post 16, an exhaust manifold 10 is arranged at the other side of the top end of the cylinder block 15, an exhaust valve 11 is arranged at the bottom end of the inner side of the exhaust manifold 10, and a spark plug 9 is arranged in the middle of the top end of the cylinder block 15;
the slide valve shell 17 is close to the cylinder cover, air inlet holes are circumferentially distributed, the center of the valve slide valve 18 is provided with a jack post 16, the jack post 16 is fixedly connected with the valve slide valve 18, the jack post 16 penetrates through the upper surface of the slide valve shell 17, an air inlet valve spring 5 is arranged above the jack post 16 to press the jack post 16 and enable the valve slide valve 18 to be stressed downwards, the air inlet is sealed by the bearing surface of the valve slide valve 18, when the piston 14 ascends and pushes the jack post 16, the valve slide valve 18 ascends at the same time to expose the air inlet, and because the air pressure borne by the upper end surface and the lower end surface of the valve slide valve 18 is equal, the piston 14 can jack the valve slide valve 18 with smaller force, and the air inlet valve slide valve 18 can be pressed by the spring 5 with smaller force.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. Compressed air fuel engine, including cylinder block (15), characterized by, cylinder block (15) inboard is provided with piston (14), piston (14) bottom is provided with connecting rod (2), connecting rod (2) bottom is provided with bent axle (1), cylinder block (15) top one side is provided with intake manifold (4), intake manifold (4) inboard bottom is provided with admission valve (3), cylinder block (15) top opposite side is provided with exhaust manifold (10), exhaust manifold (10) inboard bottom is provided with discharge valve (11), cylinder block (15) one side top is provided with high-pressure fuel sprayer (12), and cylinder block (15) top middle part is provided with tappet (13), tappet (13) top is provided with ejector pin (8), ejector pin (8) one side is provided with spark plug (9), and ejector pin (8) top is provided with rocking arm (6), rocking arm (6) bottom middle part is provided with rocking arm pivot (7), and rocking arm (6) top one side is provided with intake valve spring (5), intake manifold (4) one end is provided with the gas holder, gas holder one end is connected with the compressor, high-pressure fuel sprayer (12) intercommunication (15) inside, and high-pressure fuel sprayer (12) and high-pressure fuel sprayer (15) are threaded connection, the crankshaft (1) is in transmission connection with the connecting rod (2);
in the suction stroke of the compressed air fuel engine, compressed air with high temperature and high pressure is sucked, the pressure of the compressed air is up to 2MPa, the temperature is up to 500-700 ℃, in the suction process, the top end of the piston (14) is propped up to and pushes the tappet (13) at a certain moment before the piston (14) reaches the upper dead point, the rocker arm (6) is pushed upwards by the ejector rod (8), the other end of the rocker arm (6) moves downwards to overcome the pressure of the inlet valve spring (5), the inlet valve (3) is pushed and opened, the high-pressure high-temperature compressed air is pressed into the cylinder, the compressed air is continuously pressed into the cylinder as the piston (14) reaches the upper dead point, then the piston (14) passes the upper dead point and enters the lower dead point, the top of the piston (14) is separated from the tappet (13), the inlet valve (3) is completely closed, the high-pressure oil nozzle (12) ejects high-pressure atomized gasoline, then the spark plug (9) is ignited, the gasoline burns instantly, the gas expands thermally, the piston (14) is pushed downwards to accelerate to the lower dead point, at a certain moment before the piston (14) reaches the lower dead point, the exhaust valve (11) is controlled by the cam, the low-pressure is opened, the low-pressure exhaust valve (11) passes the lower dead point (11) and enters the upper dead point, the upper dead point (11) and enters the upper dead point, the exhaust valve (11) and is closed when the exhaust valve (11) is completely at the upper dead point, the inlet valve (3) opens and repeats the previous cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110644701.9A CN113309594B (en) | 2021-06-09 | 2021-06-09 | Compressed air fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110644701.9A CN113309594B (en) | 2021-06-09 | 2021-06-09 | Compressed air fuel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113309594A CN113309594A (en) | 2021-08-27 |
| CN113309594B true CN113309594B (en) | 2023-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110644701.9A Active CN113309594B (en) | 2021-06-09 | 2021-06-09 | Compressed air fuel engine |
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| Country | Link |
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| CN (1) | CN113309594B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203452863U (en) * | 2013-09-17 | 2014-02-26 | 汪辉 | Energy-saving engine |
| CN110043363A (en) * | 2017-06-28 | 2019-07-23 | 周天宇 | A kind of reciprocating-piston two-stroke internal combustion engine |
| CN110513192A (en) * | 2019-09-30 | 2019-11-29 | 苏州向势机械技术有限公司 | A kind of double-piston lever high efficience motor and its control method of doing work |
| JP2021017883A (en) * | 2019-07-23 | 2021-02-15 | 康治 野口 | 4-cycle diesel engine with integrated intake/exhaust chamber |
-
2021
- 2021-06-09 CN CN202110644701.9A patent/CN113309594B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203452863U (en) * | 2013-09-17 | 2014-02-26 | 汪辉 | Energy-saving engine |
| CN110043363A (en) * | 2017-06-28 | 2019-07-23 | 周天宇 | A kind of reciprocating-piston two-stroke internal combustion engine |
| JP2021017883A (en) * | 2019-07-23 | 2021-02-15 | 康治 野口 | 4-cycle diesel engine with integrated intake/exhaust chamber |
| CN110513192A (en) * | 2019-09-30 | 2019-11-29 | 苏州向势机械技术有限公司 | A kind of double-piston lever high efficience motor and its control method of doing work |
Non-Patent Citations (1)
| Title |
|---|
| 戈登.二冲程发动机涉及与模拟.天津大学出版社,2018,第405-407页. * |
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| CN113309594A (en) | 2021-08-27 |
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