CN117432513A - Spark plug cooling pipeline, cylinder cover and engine - Google Patents

Spark plug cooling pipeline, cylinder cover and engine Download PDF

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Publication number
CN117432513A
CN117432513A CN202311390078.4A CN202311390078A CN117432513A CN 117432513 A CN117432513 A CN 117432513A CN 202311390078 A CN202311390078 A CN 202311390078A CN 117432513 A CN117432513 A CN 117432513A
Authority
CN
China
Prior art keywords
spark plug
spacer
cooling
air
cylinder head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311390078.4A
Other languages
Chinese (zh)
Inventor
安涛
高磊
朱正发
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfeng Commercial Vehicle Co Ltd
Original Assignee
Dongfeng Commercial Vehicle Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongfeng Commercial Vehicle Co Ltd filed Critical Dongfeng Commercial Vehicle Co Ltd
Priority to CN202311390078.4A priority Critical patent/CN117432513A/en
Publication of CN117432513A publication Critical patent/CN117432513A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P1/00—Air cooling
    • F01P1/06—Arrangements for cooling other engine or machine parts
    • F01P1/10—Arrangements for cooling other engine or machine parts for cooling fuel injectors or sparking-plugs
    • 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
    • F02F1/28—Cylinder heads having cooling means for air cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10268—Heating, cooling or thermal insulating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

The invention discloses a spark plug cooling pipeline, a cylinder cover and an engine, and belongs to the technical field of automobile engines. Compared with the prior art that the spark plug is indirectly cooled only by means of parts at the installation part of the spark plug, the invention has the advantages that the heat dissipation effect is obviously better than that of the prior art, and the purpose of better heat dissipation effect of the spark plug is achieved, thereby avoiding the occurrence of hot ignition and the sintering condition of the spark plug and the spacer bush, and being convenient to detach and replace.

Description

Spark plug cooling pipeline, cylinder cover and engine
Technical Field
The invention belongs to the technical field of automobile engines, and particularly relates to a spark plug cooling pipeline, a cylinder cover and an engine.
Background
In the existing automobile engine, no structure for directly radiating the spark plug exists, and in most cases, the spark plug is indirectly radiated by means of parts (a spacer bush arranged between the spark plug and a cylinder cover) at the installation position of the spark plug, so that the radiating effect is limited. The poor heat dissipation of the spark plug directly affects the service life of the spark plug, hot ignition is easy to occur under high load, the stability of the power output of the engine is affected, and the reliability of the engine is not facilitated; in addition, after running for a period of mileage, the spark plug is easy to sinter with the installation part (the spacer), so that the spark plug and the spacer are not easy to disassemble or cannot be disassembled at all, and the whole engine can be damaged in severe cases.
Disclosure of Invention
In view of the background technology, the invention provides a spark plug cooling pipeline, a cylinder cover with the cooling pipeline and an engine, and introduces external air to directly cool a spark plug, so that the technical problems of poor engine stability and difficult disassembly of the spark plug caused by poor heat dissipation of the spark plug in the prior art are solved.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
in one aspect, the present invention provides a spark plug cooling circuit having a cooling fluid therein, a portion of the spark plug cooling circuit being disposed around a spark plug to cool the spark plug. The invention adopts the form of arranging the cooling pipeline around the spark plug in a surrounding way, so that the spark plug can be directly cooled, and the cooling effect is obviously improved.
Further, the spark plug cooling pipeline comprises an air inlet section, a cooling section and an exhaust section which are sequentially communicated, wherein the cooling section surrounds the spark plug, the cooling section is communicated with the spark plug, so that the cooling fluid can directly contact the spark plug to cool the spark plug, and the spark plug cooling pipeline has the advantage of good cooling effect.
On the other hand, the invention provides a cylinder head which comprises the spark plug cooling pipeline, and meanwhile, the cylinder head further comprises a cylinder head body and a spacer, wherein a mounting hole is formed in the cylinder head body, the spacer is arranged in the mounting hole, the spark plug is arranged in the spacer, the air inlet section and the air outlet section are positioned on the cylinder head body at two sides of the mounting hole, and the cooling section is arranged inside the spacer.
Further, a first duct and a second duct extending away from the mounting hole are formed on two sides of the mounting hole of the cylinder head body, the first duct forms the air inlet section, and the second duct forms the air outlet section.
Further, the spacer comprises a first spacer and a second spacer which are connected in a matched manner, a side wall of the first spacer, which is close to the first pore canal, extends far away from the first pore canal and extends vertically towards the direction, which is close to the second spacer, so that gaps for cooling fluid to flow are formed between the first spacer and the wall of the mounting hole and between the first spacer and the second spacer, and the gaps are communicated with the accommodating spaces of the first spacer and the second spacer to form the cooling section.
Further, the side wall of the first spacer bush, which is close to the second pore canal, is provided with an exhaust hole for communicating the cooling section and the exhaust section.
In addition, the invention also provides an engine, which comprises the cylinder cover.
Further, the engine also includes an air system including an air supply line and an air outlet line in communication with the spark plug cooling line, respectively.
Further, the air supply pipeline comprises an air filter, a supercharger, an intercooler and an air inlet pipeline connected with the air filter, the supercharger and the intercooler.
Further, the air system further comprises a valve element arranged on the air supply pipeline and the air outlet pipeline.
Compared with the prior art, the invention has the beneficial effects that:
according to the spark plug cooling pipeline, part of the spark plug cooling pipeline is arranged around the spark plug, and cooling fluid is arranged in the spark plug cooling pipeline, so that the spark plug cooling pipeline can cool the spark plug directly, and compared with the prior art that the spark plug is indirectly cooled only by means of parts of the installation part of the spark plug, the heat dissipation effect is obviously better than that of the prior art, the purpose of better heat dissipation effect of the spark plug is achieved, the occurrence of hot ignition and sintering of the spark plug and a spacer is avoided, and the spark plug cooling pipeline is convenient to detach and replace; meanwhile, due to the adoption of the spark plug cooling pipeline, the cylinder cover and the engine have good heat dissipation performance, so that the stability and the reliability of the engine are improved, and the possibility of overhaul of the engine is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
In the drawings:
FIG. 1 is a diagram of a spark plug cooling circuit arrangement according to an embodiment of the present invention;
FIG. 2 is a block diagram of a cylinder head according to an embodiment of the present invention;
FIG. 3 is a block diagram of a first spacer according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an air system according to an embodiment of the present invention.
The figure shows:
100-spark plug cooling pipelines, 110-air inlet sections, 120-cooling sections and 130-air exhaust sections;
200-spark plugs;
300-cylinder cover, 310-cylinder cover body, 311-mounting hole, 320-spacer, 321-first spacer, 3211-exhaust hole, 322-second spacer, 330 seal groove;
400-engine, 410-air filter, 420-supercharger, 430-intercooler.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. 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.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, directly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions are used herein for illustrative purposes only and are not meant to be the only embodiment.
The invention takes a four-valve ignition type natural gas engine as an example to describe the technical content of the invention in detail.
The spark plug of the existing four-valve ignition type natural gas engine is generally arranged in the middle of the cylinder cover, the cooling effect of cooling liquid in the water jacket on the spacer sleeve indirectly dissipates heat for the spark plug, the heat dissipation effect is poor, the spark plug is at risk of hot ignition, in addition, after a certain mileage of an automobile, the spark plug and the spacer sleeve are sintered together due to overhigh temperature near the spark plug, so that the spark plug cannot be detached and replaced, and the whole engine can be damaged if the spark plug is improperly processed.
In order to solve the above-mentioned problems in the prior art, the first aspect of the present embodiment provides a cooling pipeline for a spark plug, where the general idea is to introduce part of the air in the air system of the engine into the spacer, and to surround the periphery of the spark plug to achieve the purpose of directly dissipating the heat of the spark plug. The method comprises the following steps:
a spark plug cooling circuit 100 as shown in fig. 1, wherein a cooling fluid is provided in the spark plug cooling circuit 100, and a part of the spark plug cooling circuit 100 is disposed around a spark plug 200 to cool the spark plug 200.
The cooling fluid in the spark plug cooling circuit 100 may be a liquid or a gas, and generally, the cooling fluid may be air in an air system or cooling fluid in a cooling system, and in this embodiment, air is preferred as the cooling fluid, based on the structural characteristics of the engine in the art. Whether in the form of air or cooling liquid, the spark plug cooling pipelines 100 are arranged around the spark plug 200, so that the spark plug 200 can be directly cooled, and good heat dissipation performance of the spark plug is ensured, thereby avoiding the occurrence of hot ignition of the spark plug 200 and the occurrence of sintering of the spark plug 200 and a spacer bush, facilitating the disassembly and the replacement, and prolonging the service life of parts.
In the embodiment, the spark plug cooling circuit 100 includes an intake section 110, a cooling section 120, and an exhaust section 130 that are sequentially connected, wherein the cooling section 120 is disposed around the spark plug 200, and the cooling section 120 is connected to the spark plug 200 such that the cooling fluid directly contacts the spark plug 200. That is, the cooling section 120 must be disposed inside the spacer and around the spark plug 200, for this embodiment, the air is directly introduced into the spacer and wound around the spark plug 200, so that the air can directly contact the spark plug 200 to dissipate heat, and the heat generated by the spark plug 200 is maximally carried out, while the air inlet section 110 provides air for the cooling section 120 and the air outlet section 130 discharges the air with heat.
The second aspect of the present embodiment provides a cylinder head 300, and a spark plug cooling line 100 provided in the first aspect of the present embodiment is disposed on the cylinder head 300.
In a specific implementation, the structure of the cylinder head 300 is shown in fig. 2, and includes a cylinder head body 310 and a spacer 320, and referring to fig. 1, a mounting hole 311 is formed in the cylinder head body 310, the spacer 320 is disposed in the mounting hole 311, the spark plug 200 is mounted in the spacer 320, a water jacket is arranged outside the lower portion of the spacer 320, and cooling liquid flowing in the water jacket can cool the spacer 320 and indirectly cool the spark plug 200. However, this indirect cooling manner obviously cannot satisfy the heat dissipation of the ignition plug 200, and therefore, we arrange the ignition plug cooling circuit 100 provided in the first aspect of the present embodiment on the cylinder head 300, specifically, the intake section 110 and the exhaust section 130 on the cylinder head body 310 on both sides of the mounting hole 311, and the cooling section 120 inside the spacer 320.
In a specific implementation, to arrange the spark plug cooling pipe 100, a first duct and a second duct extending away from the mounting hole 311 are respectively formed on two sides of the cylinder head body 310 located at the mounting hole 311, where the first duct forms the air intake section 110 in the present embodiment, and the second duct forms the air exhaust section 130 in the present embodiment.
Preferably, in this embodiment, the first duct and the second duct are horizontal straight-line channels, which may be circular or rectangular, and in other embodiments other than this embodiment, the first duct and the second duct may be other shapes, such as serpentine channels; the apertures of the first pore canal and the second pore canal are based on the air circulation requirement, and can be set according to the actual requirement; in addition, the processing technology of the first duct and the second duct may be a hole forming technology that is conventional in the art, and will not be described herein.
In this embodiment, the spacer 320 includes a first spacer 321 and a second spacer 322 that are cooperatively connected, the spark plug 200 is screwed into the second spacer 322, and the internal spaces of the first spacer 321 and the second spacer 322 are communicated after the first spacer 321 is connected with the second spacer 322.
Preferably, in order to arrange the cooling section 120 of the spark plug cooling pipe 100, as shown in fig. 3, a recess is extended from a side wall of the first spacer 321 close to the first duct (i.e. the air inlet section 110) toward a direction away from the first duct, the recess extends vertically toward the direction close to the second spacer 322, so as to provide a diversion effect for air circulation, and thus, gaps are formed between the first spacer 321 and the hole wall of the mounting hole 311 and between the first spacer 321 and the inner wall of the second spacer 322, and the recess extends toward the second spacer 322 until the recess is not in contact with the bottom surface of the second spacer 322, that is, the recess and the bottom of the second spacer 322 are in a gap, so that the gap between the first spacer 321 and the hole wall of the mounting hole 311 and the gap between the recess and the inner wall of the second spacer 322 are in communication with the inner spaces of the first spacer 321 and the second spacer 322, and together form the cooling section 120 of the spark plug cooling pipe 100.
Meanwhile, the first hole channel formed on the cylinder head body 310 forms the air inlet section 110 of the spark plug cooling pipeline 100, the second hole channel forms the air outlet section 130 of the spark plug cooling pipeline 100, and in order to communicate the air inlet section 110, the cooling section 120 and the air outlet section 130, one end of the first hole channel directly penetrates through a gap formed by the first spacer 321 and the wall of the mounting hole 311, the side wall of the first spacer 321, which is close to the second hole channel, is provided with an air outlet 3211, and the air inlet section 110 and the cooling section 120 can be communicated through the air outlet 3211, so that air circulation is ensured.
Preferably, the caliber of the air outlet 3211 should be less than or equal to the caliber of the first duct.
Preferably, a sealing groove 330 is further disposed at the upper outer side of the first spacer for sealing when the spacer 320 is combined with the cylinder head body 310.
The working principle of the cylinder head 300 provided in the present embodiment described above is:
air is sent into the cooling section 120 from the first pore canal (namely the air inlet section 110), firstly enters a gap between the first spacer 321 and the inner wall of the mounting hole 311, then enters a gap between the first spacer 321 and the inner wall of the second spacer 322, then flows into the inner space of the second spacer 322 and the inner space of the first spacer 321 in sequence, flows through the spark plug 200 in the process, takes away the heat of the spark plug 200 to achieve the purpose of cooling, and finally the air in the first spacer 321 is discharged into the second pore canal (namely the air outlet section 130) through the air outlet 3211.
It should be noted that, the spark plug cooling circuit 100 according to the present embodiment can circulate according to the above-mentioned circuit, because when the engine is running, the intake manifold of the engine air system is negative pressure, and the air after the intercooler is positive pressure after the pressurization, so there is a pressure difference, and the air can flow by itself under the action of the pressure difference.
A third aspect of the present embodiment provides an engine 400, the engine 400 including the cylinder head 300 according to the second aspect of the present embodiment.
In this embodiment, when implemented, the engine 400 further includes an air system, where the air system includes an air supply pipeline and an air outlet pipeline that are respectively communicated with the spark plug cooling pipeline 100, that is, the air source of the spark plug cooling pipeline 100 provided in the first aspect of this embodiment is the air supply pipeline of the air system of the engine 400, and the air is discharged as the air outlet pipeline of the air system.
In this embodiment, the air supply line includes an air filter 410, a supercharger 420, an intercooler 430, and an air intake line connecting the air filter 410, the supercharger 420, and the intercooler 430.
Note that, the operation principle of the four-valve ignition type natural gas engine 400 of the present embodiment is schematically explained as follows: the cylinder head 300 and the engine block enclose a combustion chamber, the spark plug 200 is mounted on the cylinder head 300 and is introduced into the combustion chamber, as shown in fig. 4, external air firstly passes through the purification function of the air filter 410 after entering the supercharger 420 for supercharging, then enters the intercooler 430 and then enters the mixer (not shown in the figure), meanwhile, the processed natural gas is also conveyed into the mixer to be mixed with air, the mixer is sprayed into the combustion chamber through the air inlet pipe, the combustion is carried out under the ignition of the spark plug 200, the generated heat energy can push the piston, so that the engine 400 does work outwards, and high-temperature exhaust gas generated by the combustion of the mixed gas is discharged from the exhaust pipe.
Based on the working principle of the engine 400 and the composition of the air system, an air inlet pipe is added on the basis of the original air inlet pipe of the intercooler 430, and the outlet end of the air inlet pipe is communicated with the air inlet section 110 of the spark plug cooling pipeline 100 (i.e. is communicated with the first pore canal of the cylinder head main body 310) to provide clean air for the spark plug cooling pipeline 100; meanwhile, an exhaust pipe is added to the outlet end of the exhaust section 130 of the spark plug cooling pipeline 100, the outlet of the exhaust pipe is communicated with a pipeline between the air filter 410 and the supercharger 420, and the air used for cooling the spark plug 200 is returned to the supercharger 420 for supercharging and then recycled through the intercooler 430. In the process, air can flow by means of pressure difference, power is not needed, and energy sources are saved.
Preferably, the materials and calibers of the newly added air inlet pipe and air outlet pipe in this embodiment are the same as those of the air inlet pipe and air outlet pipe of the original air system of the engine 400, for example, a stainless steel pipe with a caliber of 20mm, and in other embodiments other than this embodiment, pipes with different materials and calibers from the original air inlet pipe and air outlet pipe, such as hard plastic pipes, can be adopted, so long as the requirements of air inlet and air outlet are met.
Preferably, the air system further comprises a valve element arranged on the air supply pipeline and the air outlet pipeline, the valve element is an automatic valve element and is electrically connected with a controller of the automobile, and the effect that the air flow in the pipeline changes along with the running condition of the engine is achieved.
It will be appreciated that the present invention provides a spark plug cooling circuit 100 that can be used not only in natural gas engines, but also in spark ignited diesel engines and gasoline engines. Specifically, when the spark plug cooling pipeline 100 is applied to a diesel engine and a gasoline engine, the structural form of the spark plug cooling pipeline 100 arranged on the cylinder head 300 is unchanged, and the arrangement mode of the air supply pipeline and the air outlet pipeline is only required to be changed according to the specific air system arrangement mode of the diesel engine and the gasoline engine, so that the air inlet and the air outlet of the spark plug cooling pipeline 100 can be basically satisfied.
It should be noted that the above-mentioned parts are referred to the prior art, and are not described herein.
In summary, according to the cooling pipeline for the spark plug provided by the invention, by introducing external air into the cooling pipeline 100 for the spark plug, the spark plug 200 is directly cooled, and the purpose of better heat dissipation effect of the spark plug 200 is achieved, so that the conditions of hot ignition and sintering of the spark plug 200 and the spacer 320 are avoided, and the cooling pipeline is convenient to detach and replace; meanwhile, the cylinder head 300 and the engine 400 provided by the invention have good heat dissipation performance due to the inclusion of the spark plug cooling pipeline 100, so that the stability and the reliability of the engine 400 are improved, and the possibility of engine overhaul is reduced.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any of various other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. A spark plug cooling circuit having a cooling fluid therein, a portion of the spark plug cooling circuit being disposed around a spark plug to cool the spark plug.
2. The spark plug cooling circuit of claim 1, wherein the spark plug cooling circuit includes an intake section, a cooling section, and an exhaust section in sequential communication;
wherein the cooling segment is disposed around the spark plug, the cooling segment communicating with the spark plug such that the cooling fluid directly contacts the spark plug.
3. A cylinder head having the spark plug cooling circuit of claim 1 or 2;
the cylinder head comprises a cylinder head body and a spacer, wherein the cylinder head body is provided with a mounting hole, the spacer is arranged in the mounting hole, the spark plug is arranged in the spacer, the air inlet section and the air outlet section are positioned on the cylinder head body at two sides of the mounting hole, and the cooling section is arranged in the spacer.
4. The cylinder head according to claim 3, wherein the cylinder head body is formed with a first port and a second port on both sides of the mounting hole, respectively, extending in a direction away from the mounting hole, the first port constituting the intake section, and the second port constituting the exhaust section.
5. The cylinder head of claim 4, wherein the spacer includes a first spacer and a second spacer cooperatively connected, a sidewall of the first spacer adjacent the first bore extending away from the first bore and extending perpendicularly adjacent the second spacer such that a gap for the flow of the cooling fluid is formed between the first spacer and the mounting bore wall and between the first spacer and the second spacer, the gap in communication with the receiving spaces of the first spacer and the second spacer forming the cooling section.
6. The cylinder head of claim 5, wherein the first spacer is formed with an exhaust port adjacent to a side wall of the second bore for communicating the cooling section and the exhaust section.
7. An engine comprising a cylinder head according to any one of claims 3 to 6.
8. The engine of claim 7, further comprising an air system including an air supply line and an air outlet line in communication with the spark plug cooling line, respectively.
9. The engine of claim 8, wherein the air supply line includes an air filter, a supercharger, an intercooler, and an air intake conduit connecting the air filter, supercharger, and intercooler.
10. The engine of claim 8, wherein the air system further comprises a valve member disposed on the air supply and air outlet lines.
CN202311390078.4A 2023-10-24 2023-10-24 Spark plug cooling pipeline, cylinder cover and engine Pending CN117432513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311390078.4A CN117432513A (en) 2023-10-24 2023-10-24 Spark plug cooling pipeline, cylinder cover and engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311390078.4A CN117432513A (en) 2023-10-24 2023-10-24 Spark plug cooling pipeline, cylinder cover and engine

Publications (1)

Publication Number Publication Date
CN117432513A true CN117432513A (en) 2024-01-23

Family

ID=89551016

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311390078.4A Pending CN117432513A (en) 2023-10-24 2023-10-24 Spark plug cooling pipeline, cylinder cover and engine

Country Status (1)

Country Link
CN (1) CN117432513A (en)

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