CN114856797B - Engine combustion chamber structure and engine - Google Patents
Engine combustion chamber structure and engine Download PDFInfo
- Publication number
- CN114856797B CN114856797B CN202110162758.5A CN202110162758A CN114856797B CN 114856797 B CN114856797 B CN 114856797B CN 202110162758 A CN202110162758 A CN 202110162758A CN 114856797 B CN114856797 B CN 114856797B
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- combustion chamber
- engine
- temperature control
- chamber structure
- intake
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Classifications
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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
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/12—Engines characterised by precombustion chambers with positive ignition
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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
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/16—Chamber shapes or constructions not specific to sub-groups F02B19/02 - F02B19/10
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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
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/16—Chamber shapes or constructions not specific to sub-groups F02B19/02 - F02B19/10
- F02B19/18—Transfer passages between chamber and cylinder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
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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
- F02B19/00—Engines characterised by precombustion chambers
- F02B2019/002—Engines characterised by precombustion chambers with electric heater fitted to at least part of prechamber-wall or transfer passage
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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 belongs to the technical field of automobile engines, and particularly relates to an engine combustion chamber structure and an engine. The engine combustion chamber structure comprises a cylinder cover, a spark plug, a temperature control part and a piston; the cylinder cover is provided with a main combustion chamber and a mounting through hole communicated with the main combustion chamber; the temperature control part comprises a heater, a side electrode, a radiating water jacket and a temperature control shell; the temperature control shell is provided with a pre-combustion chamber, spray holes communicated between the pre-combustion chamber and the main combustion chamber, and an annular heating chamber arranged around the pre-combustion chamber; the temperature control shell is arranged in the installation through hole, and the spark plug is arranged on the temperature control shell; the side electrode is arranged in the pre-combustion chamber and is arranged opposite to the positive electrode of the spark plug; the radiating water jacket is arranged on the inner side wall of the annular heating chamber, and the heater is arranged in the annular heating chamber. In the invention, the engine combustion chamber structure ensures the normal and stable operation of the engine, and meanwhile, the engine combustion chamber structure is simple in structure and low in manufacturing cost.
Description
Technical Field
The invention belongs to the technical field of automobile engines, and particularly relates to an engine combustion chamber structure and an engine.
Background
The fuel engine adopts lean combustion to reduce heat dissipation loss and knocking of the engine, and is one of core technologies of high-efficiency engines. The combustion area of the engine with lean combustion is divided into a main combustion chamber and a pre-combustion chamber, when the engine operates, fuel is firstly injected into the pre-combustion chamber and combusted in the pre-combustion chamber, high-temperature mixed gas in the pre-combustion chamber enters the main combustion chamber in a flame jet mode, and a plurality of flames develop in the main combustion chamber to ignite the lean mixed gas in the main combustion chamber.
At present, when an engine runs at high temperature and high load, the pre-combustion chamber can be damaged due to overhigh temperature; when the engine runs at low temperature and low load, the temperature in the pre-combustion chamber is too low, so that the flow intensity of gas in the pre-combustion chamber is weak, the combustion stability of the engine is poor, and the engine is difficult to start stably.
Disclosure of Invention
The invention solves the technical problems that the engine has poor combustion stability and is difficult to stably start when running at low temperature and low load, and provides an engine combustion chamber structure and an engine.
In view of the above problems, the engine combustion chamber structure provided by the embodiment of the invention comprises a cylinder cover, a spark plug, a temperature control part and a piston; the cylinder cover is provided with a main combustion chamber and a mounting through hole communicated with the main combustion chamber;
the temperature control part comprises a heater, a side electrode, a radiating water jacket and a temperature control shell; the temperature control shell is provided with a pre-combustion chamber, spray holes communicated between the pre-combustion chamber and the main combustion chamber and an annular heating chamber arranged around the pre-combustion chamber; the temperature control shell is arranged in the installation through hole, and the spark plug is arranged on the temperature control shell; the side electrode is arranged in the pre-combustion chamber and is arranged opposite to the positive electrode of the spark plug; the radiating water sleeve is arranged on the inner side wall of the annular heating chamber, and the heater is arranged in the annular heating chamber.
Optionally, an air inlet channel and an air outlet channel which are communicated with the main combustion chamber are also arranged on the cylinder cover; the engine combustion chamber structure further comprises an inlet valve which is arranged in the air inlet passage and used for controlling the opening and the closing of the air inlet passage, and an exhaust valve which is arranged in the exhaust passage and used for controlling the opening and the closing of the exhaust passage.
Optionally, the intake valve includes the intake column and connects the toper intake of intake column, the lower extreme of intake duct be equipped with toper sealing hole of toper intake adaptation, the intake valve through with the toper intake of the sealed laminating of first toper sealing hole closes the intake duct.
Optionally, the exhaust valve includes the exhaust column and connects the toper exhaust of exhaust column, the lower extreme of exhaust passage be equipped with the toper exhaust gas adaptation second toper sealed hole, the exhaust valve through with the toper exhaust gas of second toper sealed hole seal laminating closes the exhaust passage.
Optionally, the engine combustion chamber structure further comprises a cylinder sleeve with a mounting space, the cylinder sleeve is connected to one end of the cylinder cover far away from the mounting through hole, and the mounting space is communicated with the main combustion chamber; the piston is slidably mounted in the mounting space.
Optionally, the engine combustion chamber structure further comprises a sealing ring sleeved on the piston, and the sealing ring is in sealing connection between the piston and the inner side wall of the cylinder sleeve.
Optionally, the side electrode and the temperature control shell are in an integrated structure.
Optionally, a cooling runner for containing cooling liquid, a runner inlet and a runner outlet which are both communicated with the cooling runner are arranged on the heat dissipation water sleeve.
Optionally, the engine combustion chamber structure further comprises a connecting rod; one end of the connecting rod is hinged to the piston, and the other end of the connecting rod is hinged to the engine crankshaft.
In the invention, a main combustion chamber and an installation through hole communicated with the main combustion chamber are arranged on the cylinder cover; the temperature control part comprises a heater, a side electrode, a radiating water jacket and a temperature control shell; the temperature control shell is provided with a pre-combustion chamber, spray holes communicated between the pre-combustion chamber and the main combustion chamber and an annular heating chamber arranged around the pre-combustion chamber; the temperature control shell is arranged in the installation through hole, and the spark plug is arranged on the temperature control shell; the side electrode is arranged in the pre-combustion chamber and is arranged opposite to the positive electrode of the spark plug; the radiating water sleeve is arranged on the inner side wall of the annular heating chamber, and the heater is arranged in the annular heating chamber.
In the invention, when the engine runs at high temperature and high load, the mixed gas in the pre-combustion chamber is burnt vigorously, the temperature of the temperature control shell is increased sharply, at this time, the cooling liquid in the heat dissipation water channel can absorb the heat in the temperature control shell and the pre-combustion chamber, and the temperature of the temperature control shell is controlled within a proper temperature range, so that the problems of knocking and damaging the temperature control shell caused by overhigh temperature of the pre-combustion chamber are avoided, and the service life of the engine combustion chamber structure is prolonged. When the engine is operated at low temperature and low load, the temperature of the pre-combustion chamber can be quickly increased by the heater, so that the problems that the engine is unstable and difficult to start because the temperature of the pre-combustion chamber is too low are avoided. In the invention, the engine combustion chamber structure ensures the normal and stable operation of the engine, and meanwhile, the engine combustion chamber structure is simple in structure and low in manufacturing cost.
The invention also provides an engine, which comprises the engine combustion chamber structure.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a cross-sectional view of an engine combustion chamber structure provided in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a spark plug and temperature control member of an engine combustion chamber configuration in accordance with one embodiment of the present invention;
FIG. 3 is a cross-sectional view of a temperature controlled housing of an engine combustion chamber structure provided in an embodiment of the present invention;
fig. 4 is a front view of an intake valve of an engine combustion chamber structure according to an embodiment of the present invention.
Reference numerals in the specification are as follows:
1. a cylinder cover; 11. a main combustion chamber; 12. mounting through holes; 13. an air inlet channel; 14. an exhaust passage; 15. a first tapered seal bore; 16. a second tapered seal bore; 2. a spark plug; 3. a temperature control piece; 31. a side electrode; 32. a heat dissipation water jacket; 33. a temperature control housing; 331. a pre-combustion chamber; 332. a ring-shaped heating chamber; 333. a spray hole; 34. a heater; 4. a piston; 5. an intake valve; 51. an air inlet column; 52. conical gas inlet; 6. an exhaust valve; 7. cylinder sleeve; 8. and (3) a sealing ring.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the invention more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It is to be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "middle", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.
For convenience in explaining the mounting relation of the engine combustion chamber structure in the present invention, the "upper" referred to in the present invention is actually directed to the upper side of the engine, and the "lower" referred to in the present invention is actually directed to the lower side of the engine.
As shown in fig. 1 to 3, an embodiment of the present invention provides an engine combustion chamber structure including a cylinder head 1, a spark plug 2, a temperature control 3, and a piston 4; the cylinder cover 1 is provided with a main combustion chamber 11 and an installation through hole 12 communicated with the main combustion chamber 11;
the temperature control 3 comprises a heater 34, a side electrode 31, a radiating water jacket 32 and a temperature control shell 33; the temperature control housing 33 is provided with a pre-combustion chamber 331, a spray hole 333 communicated between the pre-combustion chamber 331 and the main combustion chamber 11, and an annular heating chamber 332 arranged around the pre-combustion chamber 331; the temperature control housing 33 is installed in the installation through hole 12, and the ignition plug 2 is installed on the temperature control housing 33; the side electrode 31 is installed in the pre-combustion chamber 331 and is disposed opposite to the positive electrode of the spark plug 2; the radiating water jacket 32 is installed on the inner side wall of the ring-shaped heating chamber 332, and the heater 34 is installed in the ring-shaped heating chamber 332. It will be appreciated that the heater 34 may be in the form of microwave heating, resistive heat release, or the like; and the number of the nozzles 333 may be plural (e.g., 4, 6, etc.) according to actual needs. Specifically, the heater 34 is a cylindrical interface, and the heater 34 is installed in the annular heating chamber 332 through the radiating water jacket 32 sleeved in the annular heating cavity. Further, the distance between the side electrode 31 and the positive electrode of the spark plug 2 is in the range of 0.8mm to 1mm, so that the spark plug 2 ignites the mixture in the pre-combustion chamber 331 by the discharge between the positive electrode and the side electrode 31.
In the present invention, when the engine is running at high temperature and high load, the mixture in the pre-combustion chamber 331 will burn vigorously, the temperature of the temperature-controlled housing 33 will rise sharply, at this time, the cooling liquid in the heat dissipation water channel can absorb the heat in the temperature-controlled housing 33 and the pre-combustion chamber 331, and the temperature of the temperature-controlled housing 33 is controlled within a proper temperature range, so that the problems of knocking and damaging the temperature-controlled housing 33 due to the too high temperature of the pre-combustion chamber 331 are avoided, and the service life of the engine combustion chamber structure is prolonged. When the engine is operated at a low temperature and a low load, the temperature of the pre-combustion chamber 331 can be rapidly increased by the heater 34, thereby avoiding the problems of unstable engine start and difficult start-up due to the excessively low temperature of the pre-combustion chamber 331. In the invention, the engine combustion chamber structure ensures the normal and stable operation of the engine, and meanwhile, the engine combustion chamber structure is simple in structure and low in manufacturing cost.
In one embodiment, as shown in fig. 1, the cylinder cover 1 is further provided with an air inlet channel 13 and an air outlet channel 14 which are both communicated with the main combustion chamber 11; the engine combustion chamber structure further includes an intake valve 5 installed in the intake duct 13 for controlling opening and closing of the intake duct 13, and an exhaust valve 6 installed in the exhaust duct 14 for controlling opening and closing of the exhaust duct 14. As can be appreciated, the intake duct 13 and the exhaust duct 14 are disposed on the left and right sides of the mounting hole 12, so that the mixture in the pre-combustion chamber 331 flows more uniformly, and the combustion efficiency of the mixture in the combustion chamber structure of the engine is improved.
In the invention, the working principle of the engine combustion chamber structure is as follows: when the engine is started in a cold mode or operated at a low temperature and a low load, the heater 34 is electrified and heats the pre-combustion chamber 331 to a first preset temperature (the first preset temperature is the temperature when the gas mixture in the pre-combustion chamber 331 can be combusted normally, and can be taken as a value according to actual requirements); when the pre-combustion chamber 331 is operated at high temperature and high load, the heat dissipation water jacket 32 can control the temperature in the pre-combustion chamber 331 within a second preset temperature range (the second preset temperature range is a temperature range of the pre-combustion chamber when operating normally, and can be valued according to actual requirements) according to different load heat dissipation requirements.
Specifically, when the engine is in the intake stroke, the intake valve 5 moves downward until the intake duct 13 is opened, while the exhaust duct 14 is in a closed state, the piston 4 moves downward, and air is drawn into the main combustion chamber 11 through the intake duct 13; and the fuel in the main combustion chamber 11 may enter the main combustion chamber 11 through an injector or the intake duct 13. When the engine is in a compression stroke, the air inlet channel 13 and the air outlet channel 14 are closed, the piston 4 moves upwards, and the mixed gas in the main combustion chamber 11 is injected into the pre-combustion chamber 331 through the injection hole 333; when the engine is in a power stroke, the piston 4 reaches the vicinity of the top dead center, the spark plug 2 ignites through the side electrode 31 and ignites the mixture in the pre-combustion chamber 331, the pressure and temperature of the mixture in the pre-combustion chamber 331 will quickly rise, and the mixture at high temperature and high pressure in the pre-combustion chamber 331 is injected into the main combustion chamber 11 through the injection hole 333 and ignites the mixture in the main combustion chamber 11; the high-temperature and high-pressure mixed gas in the main combustion chamber 11 pushes the piston 4 to move downwards; when the engine is in the exhaust stroke, the exhaust passage 14 is opened, the intake passage 13 is closed, the piston 4 moves upward, and exhaust gas in the main combustion chamber 11 is discharged through the exhaust passage 14.
In an embodiment, as shown in fig. 1 and fig. 4, the intake valve 5 includes an intake column 51 and a tapered intake 52 connected to the intake column 51, a first tapered sealing hole 15 adapted to the tapered intake 52 is provided at a lower end of the intake duct 13, and the intake valve 5 closes the intake duct 13 by the tapered intake 52 sealingly attached to the first tapered sealing hole 15. Specifically, when the intake valve 5 moves downward, the tapered intake gas 52 is separated from the first tapered seal hole 15, so that air can enter the main combustion chamber 11 through a gap between the intake valve 5 and the intake duct 13; when the intake valve 5 moves upward, the conical intake air 52 will abut against the inner side wall of the first conical sealing hole 15, so that the intake duct 13 is blocked by the intake valve 5, and the mixture in the main combustion chamber 11 cannot be discharged through the intake duct 13. In the invention, the engine combustion chamber structure is convenient to control, and has simple structure and low manufacturing cost.
In one embodiment, as shown in fig. 1, the exhaust valve 6 includes an exhaust column and a conical exhaust gas connected to the exhaust column, a second conical sealing hole 16 adapted to the conical exhaust gas is provided at the lower end of the exhaust passage 14, and the exhaust valve 6 closes the exhaust passage 14 through the conical exhaust gas sealed and attached to the second conical sealing hole 16. Specifically, when the exhaust valve 6 moves downward, the tapered exhaust gas is separated from the second tapered sealing hole 16, so that the mixture in the main combustion chamber 11 can be exhausted through the gap between the exhaust valve 6 and the exhaust passage 14; when the exhaust valve 6 moves upward, the tapered exhaust gas will abut against the inner side wall of the second tapered sealing hole 16, so that the exhaust passage 14 is blocked by the exhaust valve 6, and the mixture in the main combustion chamber 11 cannot be exhausted through the exhaust passage 14. In the invention, the engine combustion chamber structure is convenient to control, and has simple structure and low manufacturing cost.
In one embodiment, as shown in fig. 1, the engine combustion chamber structure further includes a cylinder liner 7 having a mounting space, the cylinder liner 7 is connected to an end of the cylinder cover 1 away from the mounting through hole 12, and the mounting space is communicated with the main combustion chamber 11; the piston 4 is slidably mounted in the mounting space. It can be understood that the cylinder liner 7 and the cylinder cover 1 are of an up-down concentric installation structure, and the piston 4 moves up and down in the installation space of the cylinder liner 7, thereby completing the engine driving operation. Preferably, the engine combustion chamber structure further comprises a sealing ring 8 sleeved on the piston 4, and the sealing ring 8 is in sealing connection between the piston 4 and the inner side wall of the cylinder sleeve 7. It can be appreciated that the sealing ring 8 is mounted on the piston 4 and moves up and down in the mounting space along with the piston 4, so as to ensure tightness between the piston 4 and the cylinder sleeve 7, avoid leakage of oil gas in the main combustion chamber 11, and improve combustion efficiency of the engine combustion chamber structure.
In one embodiment, as shown in fig. 3, the side electrode 31 and the temperature-controlled housing 33 are integrally formed. In the invention, the side electrode 31 is integrated on the temperature control shell 33, and the temperature control shell is realized through machining, so that the welding procedure is avoided, the strength and the rigidity of the temperature control 3 are improved, and the service life of the temperature control is prolonged. In addition, the side electrode 31 is disposed in the pre-combustion chamber 331, and can guide a flow field in the pre-combustion chamber 331, so as to facilitate the distribution of the mixture of the fuel and the air in the pre-combustion chamber 331, and further facilitate the combustion of the mixture of the fuel and the air in the pre-combustion chamber 331.
In one embodiment, the cooling water jacket 32 is provided with a cooling flow channel (not shown) for containing a cooling liquid, and a flow channel inlet (not shown) and a flow channel outlet (not shown) both communicating with the cooling flow channel. As can be appreciated, the cooling channels are distributed inside the cooling water jacket 32, and the cooling liquid flows into the cooling channels from the channel inlets and flows out from the channel outlets after absorbing the heat in the temperature control body and the pre-combustion chamber 331; in the present invention, the heat dissipating water jacket 32 has a simple structure, low manufacturing cost and convenient installation.
In one embodiment, the engine combustion chamber structure further comprises a connecting rod (not shown); one end of the connecting rod is hinged on the piston 4, and the other end of the connecting rod is hinged on the engine crankshaft. It can be understood that the piston 4 moves up and down, and drives the engine crankshaft to rotate through the connecting rod, so as to complete the driving work of the automobile.
The invention also provides an engine, which comprises the engine combustion chamber structure.
The foregoing description of the preferred embodiment of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The engine combustion chamber structure is characterized by comprising a cylinder cover, a spark plug, a temperature control part and a piston; the cylinder cover is provided with a main combustion chamber and a mounting through hole communicated with the main combustion chamber;
the temperature control part comprises a heater, a side electrode, a radiating water jacket and a temperature control shell; the temperature control shell is provided with a pre-combustion chamber, spray holes communicated between the pre-combustion chamber and the main combustion chamber and an annular heating chamber arranged around the pre-combustion chamber; the temperature control shell is arranged in the installation through hole, and the spark plug is arranged on the temperature control shell; the side electrode is arranged in the pre-combustion chamber and is arranged opposite to the positive electrode of the spark plug; the radiating water sleeve is arranged on the inner side wall of the annular heating chamber, and the heater is arranged in the annular heating chamber;
when the engine is in a compression stroke, the piston moves upwards, and the mixed gas in the main combustion chamber is injected into the pre-combustion chamber through the injection hole.
2. The engine combustion chamber structure of claim 1, wherein the cylinder head is further provided with an air inlet passage and an air outlet passage which are communicated with the main combustion chamber; the engine combustion chamber structure further comprises an inlet valve which is arranged in the air inlet passage and used for controlling the opening and the closing of the air inlet passage, and an exhaust valve which is arranged in the exhaust passage and used for controlling the opening and the closing of the exhaust passage.
3. The engine combustion chamber structure according to claim 2, wherein the intake valve comprises an intake column and a tapered intake gas connected to the intake column, a first tapered sealing hole adapted to the tapered intake gas is provided at a lower end of the intake passage, and the intake valve closes the intake passage by the tapered intake gas sealingly fitted to the first tapered sealing hole.
4. The engine combustion chamber structure of claim 2, wherein the exhaust valve comprises an exhaust column and a tapered exhaust gas connected to the exhaust column, a second tapered sealing hole adapted to the tapered exhaust gas is provided at a lower end of the exhaust gas passage, and the exhaust valve closes the exhaust gas passage by the tapered exhaust gas sealingly fitted to the second tapered sealing hole.
5. The engine combustion chamber structure of claim 1, further comprising a cylinder liner having an installation space, said cylinder liner being connected to an end of said cylinder head remote from said installation through hole, said installation space communicating with said main combustion chamber; the piston is slidably mounted in the mounting space.
6. The engine combustion chamber structure of claim 5, further comprising a seal ring sleeved on the piston, the seal ring sealingly connected between the piston and an inner sidewall of the cylinder liner.
7. The engine combustion chamber structure of claim 1 wherein the side electrode is of unitary construction with the temperature-controlled housing.
8. The engine combustion chamber structure of claim 1, wherein the heat dissipation water jacket is provided with a cooling flow passage for accommodating a cooling liquid, and a flow passage inlet and a flow passage outlet both communicating with the cooling flow passage.
9. The engine combustion chamber structure of claim 1, wherein the engine combustion chamber structure further comprises a connecting rod; one end of the connecting rod is hinged to the piston, and the other end of the connecting rod is hinged to the engine crankshaft.
10. An engine comprising the engine combustion chamber structure of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110162758.5A CN114856797B (en) | 2021-02-05 | 2021-02-05 | Engine combustion chamber structure and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110162758.5A CN114856797B (en) | 2021-02-05 | 2021-02-05 | Engine combustion chamber structure and engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114856797A CN114856797A (en) | 2022-08-05 |
| CN114856797B true CN114856797B (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110162758.5A Active CN114856797B (en) | 2021-02-05 | 2021-02-05 | Engine combustion chamber structure and engine |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332224A (en) * | 1977-04-09 | 1982-06-01 | Robert Bosch Gmbh | Internal combustion engine with a main combustion chamber and an ignition chamber |
| DE102013214145B3 (en) * | 2013-07-18 | 2014-09-11 | Robert Bosch Gmbh | Ignition arrangement with heater and internal combustion engine |
| CN106884706A (en) * | 2017-01-23 | 2017-06-23 | 江苏盛源燃气动力机械有限公司 | Water-jacket typ pre-burning device |
| CN110094257A (en) * | 2019-04-30 | 2019-08-06 | 天津大学 | The precombustion chamber jet flame ignition combustion system of piston type Heavy End Aviation Fuel engine |
-
2021
- 2021-02-05 CN CN202110162758.5A patent/CN114856797B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332224A (en) * | 1977-04-09 | 1982-06-01 | Robert Bosch Gmbh | Internal combustion engine with a main combustion chamber and an ignition chamber |
| DE102013214145B3 (en) * | 2013-07-18 | 2014-09-11 | Robert Bosch Gmbh | Ignition arrangement with heater and internal combustion engine |
| CN106884706A (en) * | 2017-01-23 | 2017-06-23 | 江苏盛源燃气动力机械有限公司 | Water-jacket typ pre-burning device |
| CN110094257A (en) * | 2019-04-30 | 2019-08-06 | 天津大学 | The precombustion chamber jet flame ignition combustion system of piston type Heavy End Aviation Fuel engine |
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| Publication number | Publication date |
|---|---|
| CN114856797A (en) | 2022-08-05 |
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