CN112983589A - Internal combustion engine structure - Google Patents
Internal combustion engine structure Download PDFInfo
- Publication number
- CN112983589A CN112983589A CN202110437879.6A CN202110437879A CN112983589A CN 112983589 A CN112983589 A CN 112983589A CN 202110437879 A CN202110437879 A CN 202110437879A CN 112983589 A CN112983589 A CN 112983589A
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- CN
- China
- Prior art keywords
- turbine
- exhaust
- internal combustion
- waste gas
- combustion engine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/08—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio
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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
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
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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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
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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
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
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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
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
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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
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
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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 discloses an internal combustion engine structure, mainly relating to the technical field of internal combustion engines; the air cylinder comprises a turbine set and three valves, wherein the turbine set is formed by serially connecting an air compression turbine, a waste gas forced exhaust turbine and a waste gas work-doing turbine main shaft, an air inlet passage is arranged at the lower side of the air compression turbine, an air inlet valve is arranged at the bottom end of the air inlet passage, a negative pressure forced exhaust passage is arranged at the lower side of the waste gas forced exhaust turbine, a negative pressure forced exhaust valve is arranged at the bottom end of the negative pressure forced exhaust passage, a mixing chamber is arranged at the front side of the waste gas work-doing turbine, a waste gas work-doing exhaust passage is arranged at the bottom of the mixing chamber, a waste gas work-doing exhaust valve is arranged at the bottom end of the waste gas work-doing exhaust; the invention can fully utilize waste gas waste heat, can realize two-stroke work of the four-stroke internal combustion engine, and improves the small-displacement and large-power output of the internal combustion engine.
Description
Technical Field
The invention relates to the technical field of internal combustion engines, in particular to an internal combustion engine structure.
Background
At present, the existing turbocharged internal combustion engine uses an exhaust gas turbine to increase the exhaust pressure, but also increases the power consumption during exhaust, the energy generated by the exhaust gas turbine only compresses air for an air inlet part, the heat energy of the exhaust gas is not fully utilized, a larger improvement space still exists, and the small-displacement and large-power output is difficult to realize.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides an internal combustion engine structure capable of fully utilizing waste heat of exhaust gas, which can realize two-stroke work of a four-stroke internal combustion engine and improve small-displacement and large-power output of the internal combustion engine.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an internal combustion engine structure comprises a turbine set and an air cylinder, wherein a main shaft is arranged in the turbine set, an air compression turbine, a waste gas forced exhaust turbine and a waste gas working turbine are arranged on the main shaft, the air cylinder is positioned at the lower side of the turbine set, an air inlet channel communicated with the turbine set and the air cylinder is arranged at the lower side of the air compression turbine, an air inlet valve is arranged at the bottom end of the air inlet channel, a negative pressure forced exhaust channel communicated with the turbine set and the air cylinder is arranged at the lower side of the waste gas forced exhaust turbine, a negative pressure forced exhaust valve is arranged at the bottom end of the negative pressure forced exhaust channel, a mixing chamber is arranged at the front side of the waste gas working turbine, a waste gas working exhaust channel communicated with the turbine set and the air cylinder is arranged at the bottom end of the waste gas working exhaust channel, and a gas working exhaust valve, the compressor turbine chamber communicates with the mixing chamber through a passage.
Preferably, an exhaust gas forced exhaust turbine chamber adapted to the exhaust gas forced exhaust turbine is arranged in the turbine group, and the exhaust gas forced exhaust turbine chamber is communicated with the negative pressure forced exhaust passage.
Preferably, an exhaust gas work-doing turbine chamber corresponding to the exhaust gas work-doing turbine is arranged in the turbine group, and the exhaust gas work-doing turbine chamber is communicated with the mixing chamber.
Preferably, the end part of the main shaft is provided with a power output device.
Preferably, a one-way valve is arranged in the channel.
Compared with the prior art, the invention has the beneficial effects that:
the exhaust end of the internal combustion engine is respectively provided with the exhaust gas working exhaust valve and the negative pressure forced exhaust valve, and the rear exhaust stroke cylinder is in a negative pressure state by opening in a time-sharing manner, so that the thermal efficiency of the internal combustion engine is improved, the power of the internal combustion engine is improved, the waste heat of high-temperature and high-speed exhaust gas is utilized more, and the thermal efficiency of the internal combustion engine is improved; after the internal combustion engine runs, the turbine group provides positive pressure for the air inlet valve of the internal combustion engine and negative pressure for the negative pressure forced exhaust valve of the internal combustion engine, when the power of the internal combustion engine needs to be improved, the negative pressure forced exhaust valve is opened, then the air inlet valve is opened in a delayed mode to carry out air sweeping and air exchanging on the air cylinder, after the air sweeping and air exchanging, the negative pressure forced exhaust valve is closed, the air inlet valve continues to enter compressed air and then is closed, the piston continues to move upwards to compress the air, through the matching of the air distribution mechanism, the two-stroke work of the four-stroke internal combustion engine is realized.
Drawings
FIG. 1 is a schematic diagram of the end of the power stroke of an internal combustion engine;
FIG. 2 is a schematic diagram of the beginning of an exhaust stroke of an internal combustion engine;
FIG. 3 is a schematic representation of the end of the exhaust stroke of an internal combustion engine;
FIG. 4 is a schematic exhaust diagram;
FIG. 5 is a schematic view of air sweeping and ventilation;
FIG. 6 is a schematic view of inflation;
figure 7 is a schematic view of a compressed gas.
The reference numbers in the drawings: 1. a turbine group; 2. a cylinder; 3. a main shaft; 4. a compressor turbine; 5. an exhaust gas forced exhaust turbine; 6. an exhaust gas work-producing turbine; 7. an air intake passage; 8. an intake valve; 9. a negative pressure forced exhaust passage; 10. a negative pressure forced exhaust valve; 11. a mixing chamber; 12. an exhaust passage through which exhaust gas acts; 13. an exhaust valve for applying work by waste gas; 14. a compressor turbine chamber; 15. a channel; 16. exhaust gas is forcibly exhausted from the turbine chamber; 17. an exhaust gas work-doing turbine chamber; 18. a power take-off; 19. a one-way valve; 20. a piston.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
Example (b): as shown in the accompanying drawings 1-7, the invention is an internal combustion engine structure, comprising a turbine group 1 and a cylinder 2, wherein the turbine group 1 is provided with a main shaft 3, the main shaft 3 is sequentially provided with an air compression turbine 4, an exhaust gas forced exhaust turbine 5 and an exhaust gas working turbine 6 from left to right, the turbine group 1 is formed by serially connecting the air compression turbine 4, the exhaust gas forced exhaust turbine 5 and the exhaust gas working turbine 6, the cylinder 2 is positioned at the lower side of the turbine group 1, the lower side of the air compression turbine 4 is provided with an air inlet channel 7 communicating the turbine group 1 and the cylinder 2, the bottom end of the air inlet channel 7 is provided with an air inlet valve 8, a negative pressure forced exhaust channel 9 communicating the turbine group 1 and the cylinder 2 is arranged between the air compression turbine 4 and the exhaust gas forced exhaust turbine 5, the bottom end of the negative pressure forced exhaust channel 9 is provided with a negative pressure forced exhaust valve 10, and a mixing chamber 11, the bottom of the mixing chamber 11 is provided with a waste gas working exhaust passage 12 for communicating the turbine set 1 and the cylinder 2, the bottom end of the waste gas working exhaust passage 12 is provided with a waste gas working exhaust valve 13, a compressor turbine chamber 14 corresponding to the compressor turbine 4 is arranged in the turbine set 1, and the compressor turbine chamber 14 is communicated with the mixing chamber 11 through a passage 15.
Preferably, an exhaust gas forced exhaust turbine chamber 16 corresponding to the exhaust gas forced exhaust turbine 5 is provided in the turbine group 1, and the exhaust gas forced exhaust turbine chamber 16 is communicated with the negative pressure forced exhaust passage 9.
Preferably, an exhaust gas working turbine chamber 17 adapted to the exhaust gas working turbine 6 is provided in the turbine group 1, and the exhaust gas working turbine chamber 17 communicates with the mixing chamber 11.
Preferably, the end of the main shaft 3 is provided with a power output device 18.
Preferably, a one-way valve 19 is provided in the passage 15.
The working principle of the invention is as follows: at the end of the power stroke of the internal combustion engine (shown in figure 1), the exhaust gas power exhaust valve 13 is opened, the high-temperature and high-speed exhaust gas pushes the exhaust gas power turbine 6 to rotate at a high speed, the main shaft 3 drives the air compression turbine 4 and the exhaust gas forced exhaust turbine 5, the air compression turbine 4 compresses air, and the exhaust gas forced exhaust turbine 5 generates negative pressure at the air inlet side. After the exhaust stroke begins (fig. 2-fig. 3), closing the exhaust valve 13 for exhaust work, opening the negative pressure forced exhaust valve 10, and exhausting the exhaust gas in the cylinder 2 by using the negative pressure generated by the exhaust forced exhaust turbine 5; when the internal combustion engine runs, air compressed by the compressor turbine 4 is mixed with high-temperature and high-speed exhaust gas discharged by the exhaust gas work-doing exhaust valve 13 to generate larger airflow to push the exhaust gas work-doing turbine 6 to generate power, and the power is output by the power output device 18.
After the internal combustion engine runs, the air compression turbine 4, the exhaust gas forced exhaust turbine 5 and the exhaust gas acting turbine 6 provide positive pressure for the air inlet valve 8 of the internal combustion engine, and the negative pressure forced exhaust valve 10 provides negative pressure. When the power of the internal combustion engine needs to be increased, in the attached figure 4, after the negative pressure forced exhaust valve 10 is opened; in the attached figure 5, the air inlet valve 8 is opened in a delayed mode to perform air sweeping and air exchanging on the air cylinder 2, and after the air sweeping and air exchanging are performed; in the figure 6, the negative pressure forces the exhaust valve 10 to close, and the intake valve 8 continues to enter the compressed gas and then closes; in fig. 7, the piston 20 continues to move upward to compress the gas. Through the matching of the valve actuating mechanism, the two-stroke work of the four-stroke internal combustion engine is realized, and the small-displacement and large-power output capacity of the internal combustion engine can be improved.
Claims (5)
1. An internal combustion engine structure, includes turbine group (1), cylinder (2), be equipped with main shaft (3) in the turbine group (1), its characterized in that: the main shaft (3) is provided with a compression turbine (4), a waste gas forced exhaust turbine (5) and a waste gas working turbine (6), the cylinder (2) is positioned at the lower side of the turbine set (1), the lower side of the compression turbine (4) is provided with an air inlet channel (7) for communicating the turbine set (1) with the cylinder (2), the bottom end of the air inlet channel (7) is provided with an air inlet valve (8), the lower side of the waste gas forced exhaust turbine (5) is provided with a negative pressure forced exhaust channel (9) for communicating the turbine set (1) with the cylinder (2), the bottom end of the negative pressure forced exhaust channel (9) is provided with a negative pressure forced exhaust valve (10), the front side of the waste gas working turbine (6) is provided with a mixing chamber (11), the bottom of the mixing chamber (11) is provided with a waste gas working exhaust channel (12) for communicating the turbine set (1) with the cylinder (2), and the bottom end of the waste gas working exhaust channel (12) is provided with, an air compressor turbine chamber (14) matched with the air compressor turbine (4) is arranged in the turbine group (1), and the air compressor turbine chamber (14) is communicated with the mixing chamber (11) through a passage (15).
2. An internal combustion engine structure according to claim 1, wherein: the turbine group (1) is internally provided with an exhaust gas forced exhaust turbine chamber (16) matched with the exhaust gas forced exhaust turbine (5), and the exhaust gas forced exhaust turbine chamber (16) is communicated with the negative pressure forced exhaust passage (9).
3. An internal combustion engine structure according to claim 1, wherein: and an exhaust gas work-doing turbine chamber (17) matched with the exhaust gas work-doing turbine (6) is arranged in the turbine group (1), and the exhaust gas work-doing turbine chamber (17) is communicated with the mixing chamber (11).
4. An internal combustion engine structure according to claim 1, wherein: and a power output device (18) is arranged at the end part of the main shaft (3).
5. An internal combustion engine structure according to claim 1, wherein: a one-way valve (19) is arranged in the channel (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110437879.6A CN112983589A (en) | 2021-04-22 | 2021-04-22 | Internal combustion engine structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110437879.6A CN112983589A (en) | 2021-04-22 | 2021-04-22 | Internal combustion engine structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112983589A true CN112983589A (en) | 2021-06-18 |
Family
ID=76339895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110437879.6A Pending CN112983589A (en) | 2021-04-22 | 2021-04-22 | Internal combustion engine structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112983589A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550886A (en) * | 2008-04-01 | 2009-10-07 | 现代自动车株式会社 | Exhaust manifold being integrally formed with cylinder head |
| WO2014021700A1 (en) * | 2012-08-02 | 2014-02-06 | Abdelilah Lafkih | Internal combustion engine exhaust gas aspiration device |
| WO2015183064A1 (en) * | 2014-05-28 | 2015-12-03 | Abdelilah Lafkih | Aerodynamic and mechanical devices for exhaust gas suction |
-
2021
- 2021-04-22 CN CN202110437879.6A patent/CN112983589A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550886A (en) * | 2008-04-01 | 2009-10-07 | 现代自动车株式会社 | Exhaust manifold being integrally formed with cylinder head |
| WO2014021700A1 (en) * | 2012-08-02 | 2014-02-06 | Abdelilah Lafkih | Internal combustion engine exhaust gas aspiration device |
| WO2015183064A1 (en) * | 2014-05-28 | 2015-12-03 | Abdelilah Lafkih | Aerodynamic and mechanical devices for exhaust gas suction |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210618 |
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| RJ01 | Rejection of invention patent application after publication |