CN114856797A - Engine combustion chamber structure and engine - Google Patents
Engine combustion chamber structure and engine Download PDFInfo
- Publication number
- CN114856797A CN114856797A CN202110162758.5A CN202110162758A CN114856797A CN 114856797 A CN114856797 A CN 114856797A CN 202110162758 A CN202110162758 A CN 202110162758A CN 114856797 A CN114856797 A CN 114856797A
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- combustion chamber
- engine
- temperature control
- exhaust
- 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 piece and a piston; the cylinder cover is provided with a main combustion chamber and an installation through hole communicated with the main combustion chamber; the temperature control part comprises a heater, a side electrode, a heat dissipation water jacket and a temperature control shell; the temperature control shell is provided with a precombustion chamber, a jet hole communicated between the precombustion chamber and the main combustion chamber and an annular heating chamber arranged around the precombustion chamber; the temperature control shell is arranged in the mounting 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 opposite to the positive electrode of the spark plug; the heat radiation water jacket is arranged on the inner side wall of the annular heating chamber, and the heater is arranged in the annular heating chamber. 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 reduce the knocking of the engine, and is one of the 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 runs, fuel is firstly sprayed into the pre-combustion chamber and is 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 are developed 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 temperature in the pre-combustion chamber is possibly overhigh to cause damage to the pre-combustion chamber; when the engine runs at low temperature and low load, the temperature in the pre-combustion chamber is too low, so that the gas flow strength 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 combustion stability is poor and the stable starting is difficult when the engine runs at low temperature and low load, and provides an engine combustion chamber structure and an engine.
In view of the above problems, an embodiment of the present invention provides an engine combustion chamber structure, including a cylinder head, a spark plug, a temperature control member, and a piston; the cylinder cover is provided with a main combustion chamber and an installation through hole communicated with the main combustion chamber;
the temperature control part comprises a heater, a side electrode, a heat dissipation water jacket and a temperature control shell; the temperature control shell is provided with a pre-combustion chamber, a jet hole 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 mounting 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 opposite to the positive electrode of the spark plug; the heat radiation water jacket is arranged on the inner side wall of the annular heating chamber, and the heater is arranged in the annular heating chamber.
Optionally, the cylinder cover is further provided with an air inlet channel and an air outlet channel which are both communicated with the main combustion chamber; the engine combustion chamber structure further comprises an inlet valve and an exhaust valve, wherein the inlet valve is installed in the air inlet channel and used for controlling the opening and closing of the air inlet channel, and the exhaust valve is installed in the exhaust channel and used for controlling the opening and closing of the exhaust channel.
Optionally, the (air) intake valve includes the air inlet column and connects the toper of air inlet column is intake, the lower extreme of intake duct be equipped with the sealed hole of the first toper of toper air inlet adaptation, the (air) intake valve through with the sealed laminating of first toper sealed hole the toper is intake gaseous and is closed the intake duct.
Optionally, the exhaust valve includes an exhaust column and a tapered exhaust body connected to the exhaust column, a second tapered sealing hole adapted to the tapered exhaust body is formed in the lower end of the exhaust passage, and the exhaust valve closes the exhaust passage through the tapered exhaust body in sealing fit with the second tapered sealing hole.
Optionally, the engine combustion chamber structure further includes a cylinder liner having an installation space, the cylinder liner is connected to one end of the cylinder head away from the installation through hole, and the installation space is communicated with the main combustion chamber; the piston is slidably mounted in the mounting space.
Optionally, the engine combustion chamber structure further includes a sealing ring sleeved on the piston, and the sealing ring is hermetically connected between the piston and the inner side wall of the cylinder sleeve.
Optionally, the side electrode and the temperature control housing are of an integrally formed structure.
Optionally, the heat radiation water jacket is provided with a cooling flow channel for accommodating cooling liquid, and a flow channel inlet and a flow channel outlet both communicated with the cooling flow channel.
Optionally, the engine combustion chamber structure further comprises a connecting rod; one end of the connecting rod is hinged on the piston, and the other end of the connecting rod is hinged on a crankshaft of the engine.
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 heat dissipation water jacket and a temperature control shell; the temperature control shell is provided with a pre-combustion chamber, a jet hole 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 mounting 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 opposite to the positive electrode of the spark plug; the heat radiation 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, when the engine runs at high temperature and high load, the mixed gas in the pre-combustion chamber is violently combusted, the temperature of the temperature control shell is sharply increased, and at the moment, 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 damage to the temperature control shell caused by overhigh temperature in the pre-combustion chamber are avoided, and the service life of the engine combustion chamber structure is prolonged. When the engine runs at low temperature and low load, the temperature of the pre-combustion chamber can be quickly increased through the heater, so that the problems of unstable engine starting and difficult starting of the pre-combustion chamber due to too low temperature are avoided. 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 further provides an engine which comprises the engine combustion chamber structure.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a cross-sectional view of an engine combustion chamber configuration provided in accordance with 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 provided in accordance with an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a temperature controlled housing of an engine combustion chamber configuration provided in accordance with 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.
The reference numerals in the specification are as follows:
1. a cylinder cover; 11. a main combustion chamber; 12. mounting a through hole; 13. an air inlet channel; 14. an exhaust passage; 15. a first conical sealing bore; 16. a second tapered sealing bore; 2. a spark plug; 3. a temperature control member; 31. a side electrode; 32. a heat-dissipating water jacket; 33. a temperature control housing; 331. a pre-combustion chamber; 332. an annular heating chamber; 333. spraying a hole; 34. a heater; 4. a piston; 5. an intake valve; 51. an air inlet column; 52. a conical gas inlet; 6. an exhaust valve; 7. a cylinder liner; 8. and (4) a sealing ring.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present 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 merely illustrative of the invention and are not intended to limit the invention.
It is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "middle", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
For convenience of explanation of the installation relationship of the engine combustion chamber structure in the present invention, the "upper" direction in the present invention means the direction actually pointing above the engine, and the "lower" direction in the present invention means the direction actually pointing below 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 member 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 part 3 comprises a heater 34, a side electrode 31, a heat radiation water jacket 32 and a temperature control shell 33; a pre-combustion chamber 331, a nozzle 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 are provided on the temperature control housing 33; the temperature control shell 33 is installed in the installation through hole 12, and the spark plug 2 is installed on the temperature control shell 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 heat radiation water jacket 32 is installed on the inner side wall of the annular heating chamber 332, and the heater 34 is installed in the annular heating chamber 332. It is to be understood that the heater 34 may be in the form of microwave heating, resistive heating, or the like; and the number of the jet holes 333 can be set to be multiple (e.g. 4, 6, etc.) according to actual requirements. Specifically, the heater 34 is a cylindrical interface, and the heater 34 is installed in the annular heating chamber 332 through the heat dissipation 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 air-fuel 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 be burned violently, the temperature of the temperature control housing 33 will rise sharply, at this time, the coolant in the heat dissipation water channel can absorb the heat in the temperature control housing 33 and the pre-combustion chamber 331, and the temperature of the temperature control housing 33 is controlled within a proper temperature range, thereby avoiding the problems of knocking and damage to the temperature control housing 33 caused by over-high temperature of the pre-combustion chamber 331, and prolonging the service life of the engine combustion chamber structure. When the engine runs at low temperature and low load, the temperature of the pre-combustion chamber 331 can be quickly increased through the heater 34, so that the problems of unstable engine starting and difficult starting due to the fact that the temperature of the pre-combustion chamber 331 is too low are avoided. 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 head 1 is further provided with an intake passage 13 and an exhaust passage 14, both of which are communicated with the main combustion chamber 11; the engine combustion chamber structure further comprises an inlet valve 5 which is arranged in the inlet channel 13 and used for controlling the inlet channel 13 to open and close, and an exhaust valve 6 which is arranged in the exhaust channel 14 and used for controlling the exhaust channel 14 to open and close. It can be understood that the air inlet channel 13 and the air outlet channel 14 are arranged on the left and right sides of the mounting through hole 12, so that the circulation of the mixture in the pre-combustion chamber 331 is more uniform, and the combustion efficiency of the mixture in the engine combustion chamber structure is improved.
In the invention, the working principle of the engine combustion chamber structure is as follows: when the engine is in cold start or low-temperature and low-load operation, the heater 34 is powered on, and heats the pre-combustion chamber 331 to a first preset temperature (the first preset temperature is the temperature at which the mixed gas in the pre-combustion chamber 331 can be normally combusted, and can be selected according to actual requirements); when the pre-combustion chamber 331 operates at a high temperature and a 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 when the pre-combustion chamber normally works, and can be selected according to actual requirements) according to different load heat dissipation requirements.
Specifically, when the engine is in an intake stroke, the intake valve 5 moves downward until the intake channel 13 is opened, while the exhaust channel 14 is in a closed state, the piston 4 moves downward, and air is drawn into the main combustion chamber 11 through the intake channel 13; and the fuel in the main combustion chamber 11 can enter the main combustion chamber 11 through an injector or the intake channel 13. When the engine is in a compression stroke, the air inlet channel 13 and the air outlet channel 14 are both closed, the piston 4 moves upwards, and the mixture in the main combustion chamber 11 is injected into the pre-combustion chamber 331 through the jet holes 333; when the engine is in a power stroke, the piston 4 reaches near 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 the temperature of the mixture in the pre-combustion chamber 331 will rise rapidly, and the mixture in the pre-combustion chamber 331 with high temperature and high pressure is injected into the main combustion chamber 11 through the nozzle 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 an exhaust stroke, the exhaust passage 14 is opened, the intake passage 13 is closed, the piston 4 moves upwards, and exhaust gas in the main combustion chamber 11 is exhausted through the exhaust passage 14.
In an embodiment, as shown in fig. 1 and 4, the intake valve 5 includes an intake column 51 and a conical intake 52 connected to the intake column 51, a first conical sealing hole 15 adapted to the conical intake 52 is provided at a lower end of the intake channel 13, and the intake valve 5 closes the intake channel 13 through the conical intake 52 hermetically attached to the first conical sealing hole 15. Specifically, when the intake valve 5 moves downward, the conical intake air 52 is separated from the first conical sealing hole 15, so that air can enter the main combustion chamber 11 through a gap between the intake valve 5 and the intake passage 13; when the intake valve 5 moves upwards, the conical intake air 52 will abut against the inner side wall of the first conical sealing hole 15, so that the intake channel 13 is blocked by the intake valve 5, and the mixture in the main combustion chamber 11 cannot be discharged through the intake channel 13. The engine combustion chamber structure is convenient to control, simple in structure and low in manufacturing cost.
In an embodiment, as shown in fig. 1, the exhaust valve 6 includes an exhaust column and a tapered exhaust gas connected to the exhaust column, a second tapered sealing hole 16 adapted to the tapered exhaust gas is provided at a lower end of the exhaust passage 14, and the exhaust valve 6 closes the exhaust passage 14 through the tapered exhaust gas hermetically attached to the second tapered 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 gas in the main combustion chamber 11 can be exhausted through a gap between the exhaust valve 6 and the exhaust passage 14; when the exhaust valve 6 moves upwards, the tapered exhaust gas abuts 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. The engine combustion chamber structure is convenient to control, simple in structure and low in manufacturing cost.
In one embodiment, as shown in fig. 1, the engine combustion chamber structure further includes a cylinder liner 7 having an installation space, where the cylinder liner 7 is connected to an end of the cylinder head 1 away from the installation through hole 12, and the installation 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 sleeve 7 and the cylinder head 1 are of an up-down concentric installation structure, and the piston 4 moves up and down in the installation space of the cylinder sleeve 7, so as to complete the work of driving the engine. Preferably, the engine combustion chamber structure further comprises a sealing ring 8 sleeved on the piston 4, and the sealing ring 8 is connected between the piston 4 and the inner side wall of the cylinder sleeve 7 in a sealing manner. As can be understood, 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 that the sealing performance between the piston 4 and the cylinder sleeve 7 is ensured, the leakage of oil gas in the main combustion chamber 11 is avoided, and the combustion efficiency of the engine combustion chamber structure is improved.
In one embodiment, as shown in fig. 3, the side electrode 31 and the temperature control housing 33 are integrally formed. In the invention, the side electrode 31 is integrated on the temperature control shell 33 and can be realized by machining, so that the welding process is avoided, the strength and the rigidity of the temperature control part 3 are improved, and the service life of the temperature control part is prolonged. In addition, the side electrode 31 is disposed in the pre-combustion chamber 331, which can guide the flow field in the pre-combustion chamber 331, and facilitate the distribution of the mixed oil and gas in the pre-combustion chamber 331, and further facilitate the combustion of the mixed gas in the pre-combustion chamber 331.
In an embodiment, the heat-dissipating water jacket 32 is provided with a cooling flow channel (not shown) for containing a cooling fluid, and a flow channel inlet (not shown) and a flow channel outlet (not shown) both communicating with the cooling flow channel. It is understood that the cooling flow passage is distributed inside the heat radiation water jacket 32, and the cooling liquid flows into the cooling flow passage from the flow passage inlet and flows out from the flow passage outlet after absorbing the heat in the temperature control body and the pre-combustion chamber 331; in the invention, the heat radiation water jacket 32 has 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 an engine crankshaft. As can be understood, the piston 4 moves up and down, and the connecting rod drives the crankshaft of the engine to rotate, so that the driving work of the automobile is completed.
The invention further provides an engine which comprises the engine combustion chamber structure.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An engine combustion chamber structure is characterized by comprising a cylinder cover, a spark plug, a temperature control piece and a piston; the cylinder cover is provided with a main combustion chamber and an installation through hole communicated with the main combustion chamber;
the temperature control part comprises a heater, a side electrode, a heat dissipation water jacket and a temperature control shell; the temperature control shell is provided with a pre-combustion chamber, a jet hole 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 mounting 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 opposite to the positive electrode of the spark plug; the heat radiation water jacket is arranged on the inner side wall of the annular heating chamber, and the heater is arranged in the annular heating chamber.
2. The engine combustion chamber structure of claim 1, characterized in that the cylinder head is further provided with an intake duct and an exhaust duct both communicating with the main combustion chamber; the engine combustion chamber structure further comprises an inlet valve and an exhaust valve, wherein the inlet valve is installed in the air inlet channel and used for controlling the opening and closing of the air inlet channel, and the exhaust valve is installed in the exhaust channel and used for controlling the opening and closing of the exhaust channel.
3. The engine combustion chamber structure of claim 2, characterized in that the intake valve includes an intake column and a conical intake connected to the intake column, the lower end of the intake passage is provided with a first conical sealing hole adapted to the conical intake, and the intake valve closes the intake passage by the conical intake hermetically fitted to the first conical sealing hole.
4. The engine combustion chamber structure according to claim 2, characterized in that the exhaust valve includes an exhaust column and a tapered exhaust gas connected to the exhaust column, a second tapered sealing hole fitted to the tapered exhaust gas body is provided at a lower end of the exhaust passage, and the exhaust valve closes the exhaust passage by the tapered exhaust gas body 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, wherein the cylinder liner is connected to an end of the cylinder head away from the installation through hole, and the installation space communicates with the main combustion chamber; the piston is slidably mounted in the mounting space.
6. The engine combustion chamber structure of claim 5, further comprising a sealing ring sleeved on the piston, the sealing ring being sealingly connected between the piston and an inner side wall of the cylinder liner.
7. The engine combustion chamber structure of claim 1, wherein the side electrode and the temperature-controlled housing are of an integrally formed structure.
8. The engine combustion chamber structure according to claim 1, characterized in that the heat-radiating water jacket is provided with a cooling flow passage for containing 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, further comprising a connecting rod; one end of the connecting rod is hinged on the piston, and the other end of the connecting rod is hinged on a crankshaft of the engine.
10. An engine characterized by 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 |
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| Publication Number | Publication Date |
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| CN114856797A true CN114856797A (en) | 2022-08-05 |
| CN114856797B 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 |
|---|---|
| CN114856797B (en) | 2023-09-29 |
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