CN115013141A - Pre-combustion chamber structure and gas internal combustion engine - Google Patents
Pre-combustion chamber structure and gas internal combustion engine Download PDFInfo
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- CN115013141A CN115013141A CN202210678585.7A CN202210678585A CN115013141A CN 115013141 A CN115013141 A CN 115013141A CN 202210678585 A CN202210678585 A CN 202210678585A CN 115013141 A CN115013141 A CN 115013141A
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- prechamber
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- precombustion chamber
- spark plug
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 43
- 238000001816 cooling Methods 0.000 claims abstract description 58
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 14
- 238000013461 design Methods 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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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
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
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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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- 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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The invention relates to the technical field of internal combustion engines, in particular to a precombustion chamber structure and a gas internal combustion engine. The pre-combustion chamber structure comprises a cylinder cover, a pre-combustion chamber body and a spark plug, wherein an accommodating cavity and a cooling cavity which are communicated with each other are arranged in the cylinder cover; the precombustion chamber body is hermetically fixed in the accommodating cavity, a precombustion chamber is arranged in the precombustion chamber body, and at least part of the outer wall of the precombustion chamber is contacted with the cooling cavity; the spark plug is directly fixed on the precombustion chamber body, and the ignition end of the spark plug extends into the precombustion chamber. The prechamber body and the spark plug are directly and fixedly connected, so that parts can be reduced, the assembly is convenient, and areas needing to be sealed are reduced; in addition, the cooling cavity on the cylinder cover is directly contacted with the outer wall of the precombustion chamber, so that the cooling effect on the precombustion chamber part can be improved, and the service life of the precombustion chamber body is prolonged. The gas internal combustion engine is convenient to assemble, high in assembly efficiency and good in sealing and cooling effects.
Description
Technical Field
The invention relates to the technical field of internal combustion engines, in particular to a precombustion chamber structure and a gas internal combustion engine.
Background
High thermal efficiency has always been a goal sought in the field of internal combustion engines. The traditional gas internal combustion engine mostly adopts a single combustion chamber structure, namely, a closed space is formed by the bottom surface of a cylinder cover, a cylinder sleeve, a cylinder gasket and the top surface of a piston, and a spark plug is used for igniting combustible mixed gas in the combustion chamber to realize combustion and work. The combustion mode has limited ignition energy and slow flame propagation speed, thereby limiting further improvement of the thermal efficiency. On the basis of original main combustion chamber, increase a precombustion chamber structure, gaseous ignition burning in the precombustion chamber, flame propagates main combustion chamber through the orifice of precombustion chamber bottom in, can improve the burning rate of gas, and then the increasing the thermal efficiency. The prior precombustion chamber structure has the following problems: 1) the structure of the precombustion chamber is additionally provided with the gas injector, so that the area needing to be sealed is increased, and the assembly and processing difficulty is increased; 2) the structure of the precombustion chamber comprises a large number of parts, the assembly process is complicated, and the assembly efficiency is low; 3) the high temperature gas burning in the precombustion chamber causes the metal temperature in the precombustion chamber to be too high, and if the cooling is poor, the fatigue life of the precombustion chamber is greatly reduced.
Therefore, a need exists for a prechamber structure that addresses the above-mentioned problems.
Disclosure of Invention
One object of the present invention is to provide a prechamber structure that contains fewer parts, is easy to assemble, and has good sealing and cooling effects.
Another object of the present invention is to provide a gas combustion engine, which is convenient to assemble, has high assembly efficiency, and has good sealing and cooling effects by using the above-mentioned pre-combustion chamber structure.
In order to realize the purpose, the following technical scheme is provided:
in a first aspect, a prechamber arrangement is provided for a gas combustion engine, the prechamber arrangement comprising:
the cylinder cover is internally provided with an accommodating cavity and a cooling cavity which are communicated;
the precombustion chamber body is hermetically fixed in the accommodating cavity, a precombustion chamber is arranged in the precombustion chamber body, and at least part of the outer wall of the precombustion chamber is in contact with the cooling cavity;
and the spark plug is directly fixed on the precombustion chamber body, and the ignition end of the spark plug extends into the precombustion chamber.
As an alternative of the structure of the precombustion chamber, the precombustion chamber body comprises a first part, a second part and a third part which are sequentially arranged, the first part is fixedly connected with the spark plug, the precombustion chamber is arranged in the second part, and a jet hole communicated with the precombustion chamber is formed in the third part.
As an alternative to the pre-chamber structure, a threaded hole communicating with the pre-chamber is provided in the first portion, and the spark plug is screwed into the threaded hole.
As an alternative to the pre-chamber structure, a passage for connecting the nozzle hole and the pre-chamber is provided in the third portion, and the diameter of the passage is smaller than the diameter of the pre-chamber.
As an alternative to the structure of the precombustion chamber, the plurality of injection holes are uniformly distributed at an end of the third portion away from the second portion, with a center line of the third portion as a center.
As an alternative to the pre-chamber structure, an angle between a centerline of the nozzle hole and a centerline of the third portion is not less than 70 °.
As an alternative of the structure of the precombustion chamber, an external thread is arranged on the outer wall of the third part, an internal thread is arranged on the wall of the accommodating cavity matched with the third part, and the third part is in threaded connection with the accommodating cavity.
As an alternative to the prechamber structure, the cooling chamber comprises a first cooling part, a connecting channel for connecting the first cooling part and a second cooling part, at least part of the first cooling part being in contact with the outer wall of the second location and at least part of the second cooling part being in contact with the outer wall of the first location.
As an alternative to the prechamber structure, the connecting channel is formed by an outer wall of the prechamber body and an inner wall of the receiving chamber.
As an alternative to the prechamber structure, the prechamber structure further comprises a sealing ring, which is arranged between the outer wall of the first portion and the inner wall of the receiving chamber.
In a second aspect, there is provided a gas combustion engine comprising a prechamber arrangement as described above.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a precombustion chamber structure, which comprises a cylinder cover, a precombustion chamber body and a spark plug, wherein an accommodating cavity and a cooling cavity which are communicated with each other are arranged in the cylinder cover; the precombustion chamber body is hermetically fixed in the accommodating cavity, a precombustion chamber is arranged in the precombustion chamber body, and at least part of the outer wall of the precombustion chamber is contacted with the cooling cavity; the spark plug is directly fixed on the precombustion chamber body, and the ignition end of the spark plug extends into the precombustion chamber. The prechamber body and the spark plug are directly and fixedly connected, so that parts can be reduced, the assembly is convenient, and areas needing to be sealed are reduced; in addition, the cooling cavity on the cylinder cover is directly contacted with the outer wall of the precombustion chamber, so that the cooling effect on the precombustion chamber part can be improved, and the service life of the precombustion chamber body is prolonged.
The gas internal combustion engine provided by the invention is convenient to assemble, high in assembly efficiency and good in sealing and cooling effects by applying the structure of the precombustion chamber.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic structural view of a precombustor arrangement according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a prechamber body and spark plug provided in accordance with embodiments of the invention;
FIG. 3 is a schematic view of the cooling chamber and the prechamber body according to an embodiment of the present invention (the cooling chamber is formed by a cross-sectional line on the outer side of the prechamber body).
Reference numerals:
100-cylinder liner; 101-primary combustion chamber;
1-a cylinder head; 11-a containment chamber; 12-a cooling chamber; 121-a first cooling section; 122-connecting channel; 123-a second cooling section;
2-a prechamber body; 20-a precombustion chamber; 21-first site; 22-second site; 23-third site; 231-spraying holes; 232-path; 24-a seal groove; 25-a first assembly clamp;
3-a spark plug; 31-a second fitting grip;
4-sealing ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-3, the present embodiment provides a gas internal combustion engine, which includes a cylinder liner 100 and a prechamber structure, wherein a main combustion chamber 101 is disposed on the cylinder liner 100, and the main combustion chamber 101 is an important area for completing mixing and combustion of fuel and air and pushing a piston to do work.
The pre-combustion chamber structure comprises a cylinder cover 1, a pre-combustion chamber body 2 and a spark plug 3, wherein an accommodating cavity 11 and a cooling cavity 12 which are communicated with each other are arranged in the cylinder cover 1; precombustion chamber body 2 is hermetically fixed in accommodating cavity 11, precombustion chamber 20 is arranged in precombustion chamber body 2, and at least part of outer wall of precombustion chamber 20 is contacted with cooling cavity 12; spark plug 3 is directly fixed to prechamber body 2, and the firing end of spark plug 3 extends into prechamber 20. The prechamber structure prechamber body 2 and the spark plug 3 are directly and fixedly connected, so that parts can be reduced, the assembly is convenient, and areas needing to be sealed are reduced; in addition, cooling chamber 12 in cylinder head 1 directly contacts the outer wall of prechamber 20, thereby improving the cooling effect on prechamber 20 and prolonging the service life of prechamber body 2.
In the compression stroke, the combustible mixture enters the prechamber 20 through the nozzle holes 231, is ignited and combusted in the prechamber 20, and then the flame spreads into the main combustion chamber 101 through the nozzle holes 231, so that the ignition range is expanded, and the combustion speed is increased.
A screw hole communicating with prechamber 20 is provided in first portion 21, and spark plug 3 is screwed into the screw hole. This design can utilize first position 21 fixed connection spark plug 3, need not to utilize other mountings fixed spark plug 3, can reduce the spare part quantity of precombustion chamber structure, improves assembly efficiency, reduces the position that needs sealed simultaneously, guarantees the leakproofness of connecting.
In third portion 23, passage 232 for connecting nozzle hole 231 and prechamber 20 is provided, and the diameter of passage 232 is smaller than the diameter of prechamber 20. This design facilitates channeling combustion gases within prechamber 20 to diffuse to orifices 231 and then from orifices 231 into main combustion chamber 101.
The plurality of nozzles 231 are uniformly distributed on the end of the third portion 23 away from the second portion 22, with the center line of the third portion 23 as the center. This design can improve the gas communication between the prechamber 20 and the main combustion chamber 101, improving efficiency.
Illustratively, the end of the third portion 23 is a hemisphere, and the nozzle 231 is disposed on the hemisphere.
Alternatively, the orifices 231 may also be distributed in axial symmetry.
The angle between the center line of the nozzle hole 231 and the center line of the third portion 23 is not less than 70 °. This design facilitates the gas in prechamber 20 to enter main combustion chamber 101, increasing combustion efficiency. The wider angle of the orifice 231 allows the flame to be spread more widely, which in turn enlarges the ignition range of the main combustion chamber 101, accelerates the combustion speed, and improves the thermal efficiency. In the present embodiment, the number of the nozzles 231 is 8, and the diameter is 1.5mm, wherein the number of the nozzles 231 is generally 4-8, and the diameter range is generally 1mm-2 mm.
The outer wall of the third part 23 is provided with external threads, the cavity wall matched with the third part 23 on the containing cavity 11 is provided with internal threads, and the third part 23 is in threaded connection with the containing cavity 11. This design can enough be convenient for prechamber body 2 and the fixed connection of the chamber 11 that holds of cylinder head 1, can realize the sealed between both connection parts through threaded connection again, improves sealed effect.
Preferably, the length of the thread fit of the third portion 23 and the accommodating cavity 11 is not less than 16mm, and preferably 23 mm. In the prior art, the thread fit length of the precombustion chamber body and the cylinder cover is generally between 8mm-16mm, and the longer thread fit is adopted in the embodiment, so that compared with the prior art, on one hand, the sealing performance of the connecting part of the precombustion chamber body 2 and the cylinder cover 1 can be further ensured, and on the other hand, a large enough space is reserved for arranging the cooling cavity 12 to achieve the purpose of enhancing cooling.
As shown in fig. 3, the cooling chamber 12 includes a first cooling part 121, a connecting passage 122 and a second cooling part 123, the connecting passage 122 is used to connect the first cooling part 121 and the second cooling part 122, at least a portion of the first cooling part 121 is in contact with the outer wall of the second portion 22, and at least a portion of the second cooling part 123 is in contact with the outer wall of the first portion 21. This design can fully dispel the heat to prechamber 20, and the cooling effect is good, can prolong prechamber body 2's life.
It should be noted that, in order to facilitate understanding of the structure and layout of the cooling chamber 12, hatching is provided at the cooling chamber 12 in fig. 3 for easy distinction.
The connecting passage 122 is formed by the outer wall of the prechamber body 2 and the inner wall of the receiving chamber 11. This design connects the first cooling portion 121 and the second cooling portion 122 through the connecting passage 122, which facilitates the flow path of the cooling liquid, and at the same time, the connecting passage 122 can be used to further dissipate heat from the prechamber body 2.
The water flow direction in the cooling chamber 12 is such that the high temperature region of the combustion portion is preferentially cooled from the bottom up along the central axis. The water flow in the cooling chamber 12 flows in a circular rotation in a direction perpendicular to the central axis.
The connecting channel 122 is in the form of a thin-walled cylinder. Wherein the connecting channel 122 surrounds the main combustion site of the prechamber body 2, enabling targeted cooling.
If the width of the connecting passage 122 is too wide, although the amount of water passing through is increased, the flow rate is reduced and the processing is more difficult; the width of the connecting channel 122 is too narrow, and although the flow rate meets the requirement, the flow rate is smaller, and the requirement on the machining precision is higher.
Through multi-round CFD flow simulation analysis and comprehensive consideration of machining process, the width of the connecting channel 122 is selected to be proper, so that the heat exchange coefficient reaches the optimal value, and the evaluation standard of the heat exchange coefficient 15000(W/m2K) is met. The connecting passage 122 functions as a good cooling function, and improves the reliability of the prechamber body 2.
The prechamber structure further comprises a sealing ring 4, which sealing ring 4 is arranged between the outer wall of the first portion 21 and the inner wall of the receiving chamber 11. This design is further sealed the position of being connected between prechamber body 2 and the chamber 11 of holding through sealing washer 4, guarantees sealed effect.
Illustratively, the seal ring 4 is an O-ring rubber seal ring.
A sealing groove 24 is formed in the outer wall of the first portion 21, and the sealing ring 4 is sleeved in the sealing groove 24 to position the sealing ring 4.
Illustratively, the number of the seal grooves 24 is plural, the plurality of seal grooves 24 are arranged at intervals along the extending direction of the first portion 21, and the plurality of seal rings 4 are provided in the seal grooves 24 in one-to-one correspondence.
In order to facilitate the assembly of the spark plug 3 and the prechamber body 2, the prechamber body 2 is provided with a first assembly holding portion 25, and the spark plug 3 is provided with a second assembly holding portion 31. during the assembly, the second assembly holding portion 31 of the spark plug 3 is held by a wrench, and the first assembly holding portion 25 of the prechamber body 2 is held by another special wrench, so that the spark plug 3 is assembled to the prechamber body 2.
Illustratively, the first mounting clip 25 may be a hexagonal flange, a non-circular flange, or a hetero-structure with a groove on the circle. Similarly, the second mounting clip portion 31 may be a hexagonal flange, a non-circular flange, or a hetero-structure with a groove on the circular surface.
The assembly process of the precombustion chamber structure provided by the embodiment comprises the following steps: firstly, the spark plug 3 is assembled on the prechamber body 2, then the sealing ring 4 is pushed into the sealing groove 24 to form an assembly body, and then the assembly body is assembled on the cylinder cover 1, so that the assembly can be completed, and the assembly efficiency is high. The assembly body is taken as a whole, so that the assembly body is convenient to be matched with the cylinder cover 1, the assembly process is simplified, and the assembly error between the prechamber body 2 and the cylinder cover 1 is controlled, so that the sealing reliability is ensured.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A prechamber arrangement for a gas combustion engine, characterized in that the prechamber arrangement comprises:
the cylinder cover (1) is internally provided with an accommodating cavity (11) and a cooling cavity (12) which are communicated;
the prechamber body (2) is hermetically fixed in the accommodating cavity (11), a prechamber (20) is arranged in the prechamber body (2), and at least part of the outer wall of the prechamber (20) is in contact with the cooling cavity (12);
the spark plug (3) is directly fixed on the precombustion chamber body (2), and the ignition end of the spark plug (3) extends into the precombustion chamber (20).
2. A prechamber arrangement according to claim 1, characterised in that the prechamber body (2) comprises a first part (21), a second part (22) and a third part (23) arranged in that order, whereby the first part (21) is fixedly connected to the spark plug (3), whereby the prechamber (20) is arranged in the second part (22), and whereby the third part (23) is provided with holes (231) that communicate with the prechamber (20).
3. A prechamber arrangement according to claim 2, characterised in that in the first portion (21) there is a threaded hole communicating with the prechamber (20), to which threaded hole the spark plug (3) is screwed.
4. A prechamber arrangement according to claim 2, characterised in that in the third portion (23) a passage (232) is provided for connecting the nozzle hole (231) and the prechamber (20), the diameter of the passage (232) being smaller than the diameter of the prechamber (20).
5. A prechamber structure according to claim 4, characterised in that the plurality of injection holes (231) are evenly distributed around the centre line of the third portion (23) at the end of the third portion (23) remote from the second portion (22);
the included angle between the central line of the spray hole (231) and the central line of the third part (23) is not less than 70 degrees.
6. A prechamber arrangement according to claim 2, characterised in that the outer wall of the third portion (23) is provided with an external thread, that the wall of the receiving space (11) that cooperates with the third portion (23) is provided with an internal thread, and that the third portion (23) is in threaded connection with the receiving space (11).
7. A prechamber arrangement according to claim 2, characterised in that the cooling chamber (12) comprises a first cooling part (121), a connecting channel (122) and a second cooling part (123), the connecting channel (122) being intended to connect the first cooling part (121) and the second cooling part (122), at least part of the first cooling part (121) being in contact with the outer wall of the second location (22), and at least part of the second cooling part (123) being in contact with the outer wall of the first location (21).
8. A prechamber arrangement according to claim 7, characterised in that the connection channel (122) is formed by the outer wall of the prechamber body (2) and the inner wall of the receiving chamber (11).
9. A prechamber arrangement according to any of claims 2-8, characterized in that the prechamber arrangement further comprises a sealing ring (4), which sealing ring (4) is provided between the outer wall of the first portion (21) and the inner wall of the receiving chamber (11).
10. A gas combustion engine, characterized by comprising a prechamber arrangement according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210678585.7A CN115013141A (en) | 2022-06-15 | 2022-06-15 | Pre-combustion chamber structure and gas internal combustion engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210678585.7A CN115013141A (en) | 2022-06-15 | 2022-06-15 | Pre-combustion chamber structure and gas internal combustion engine |
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| CN115013141A true CN115013141A (en) | 2022-09-06 |
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| CN202210678585.7A Pending CN115013141A (en) | 2022-06-15 | 2022-06-15 | Pre-combustion chamber structure and gas internal combustion engine |
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2022
- 2022-06-15 CN CN202210678585.7A patent/CN115013141A/en active Pending
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| JPH0725224U (en) * | 1993-09-30 | 1995-05-12 | 三菱重工業株式会社 | Water-cooled pre-combustion chamber |
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| CN104454220A (en) * | 2013-09-25 | 2015-03-25 | Ge延巴赫两合无限公司 | CYLINDER HEAD and internal combustion engine comprising the same |
| CN105525981A (en) * | 2014-10-21 | 2016-04-27 | 卡特彼勒能源方案有限公司 | Pre-Combustion Chamber Assembly For Internal Combustion Engines |
| WO2017102062A1 (en) * | 2015-12-14 | 2017-06-22 | Caterpillar Energy Solutions Gmbh | Pre-chamber spark plug |
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| CN108035818A (en) * | 2017-11-17 | 2018-05-15 | 无锡开普动力有限公司 | The cylinder head of pre-chamber spark plug |
| CN112065567A (en) * | 2020-09-07 | 2020-12-11 | 中国第一汽车股份有限公司 | Engine combustion system |
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Application publication date: 20220906 |