CN114687880A - Engine cylinder heat abstractor - Google Patents
Engine cylinder heat abstractor Download PDFInfo
- Publication number
- CN114687880A CN114687880A CN202210232591.XA CN202210232591A CN114687880A CN 114687880 A CN114687880 A CN 114687880A CN 202210232591 A CN202210232591 A CN 202210232591A CN 114687880 A CN114687880 A CN 114687880A
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- Prior art keywords
- heat
- heat dissipation
- water tank
- cylinder body
- water
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 112
- 230000017525 heat dissipation Effects 0.000 claims abstract description 81
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000009795 derivation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 241000883990 Flabellum Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
Images
Classifications
-
- 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
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
-
- 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
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/04—Cylinders; Cylinder heads having cooling means for air cooling
- F02F1/06—Shape or arrangement of cooling fins; Finned cylinders
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The application provides an engine cylinder heat abstractor belongs to engine technical field. This engine cylinder heat abstractor includes cylinder body and cooling module, at first with cold water through inside the water inlet pours into the water tank into, when the temperature in the cylinder body begins to rise, cold water in the water tank can cool down the processing to the cylinder body surface, when the temperature in the water tank risees, can discharge water through the delivery port, and fin fixed mounting is in cylinder body one side, the inside unnecessary heat of cylinder body, can transmit the radiating box in through the fin, fine derivation with the inside unnecessary heat of cylinder body, heat transmission is to the radiating box in, because the fan sets up in the inside of radiating box, then open the fan, the heat of transmitting out the fin is bloied and is dispelled the heat, and then carry out water-cooling and forced air cooling heat dissipation to the cylinder body, thereby dispel the heat effectively with the inside heat that produces of cylinder body, the normal operating of engine has been guaranteed.
Description
Technical Field
The application relates to the field of engines, in particular to an engine cylinder heat dissipation device.
Background
The cylinder is an important component in the engine, along with people's requirement to the automobile manufacturing production process increases, the cylinder is widely used as the power part of clamp force, on the market at present, along with the engine miniaturization that is advancing day by day, and the intensification degree of engine constantly increases, the heat that produces in the cylinder is along with greatly increased, lead to the engine heat load to increase, need satisfy the heat dissipation demand of engine, but current engine cylinder heat abstractor, generally adopt water-cooling to cool down the heat dissipation to the cylinder, cooling heat radiation structure is more single, lead to the inside heat of cylinder to be difficult to dispel, influence the normal operating of engine.
Disclosure of Invention
In order to compensate for above not enough, the application provides an engine cylinder heat abstractor, aims at improving current engine cylinder heat abstractor, and cooling heat radiation structure is more single, leads to the inside heat of cylinder to be difficult to the effluvium, influences the normal operating problem of engine.
The embodiment of the application provides an engine cylinder heat abstractor includes cylinder body and cooling module.
The cooling assembly comprises a water tank, a water inlet, a water outlet, a heat dissipation box, heat dissipation fins and a fan, wherein the water tank is fixedly installed on two sides of the cylinder body, the water inlet is fixedly installed on one side of the water tank, the water inlet is communicated with the water tank, the water outlet is far away from the water inlet and is fixedly installed on one side of the water tank, the water outlet is communicated with the water tank, the heat dissipation box is fixedly installed on one side of the water tank, the heat dissipation fins are fixedly installed on one side of the cylinder body, the heat dissipation fins are in through connection with the water tank and the heat dissipation box, one end of each heat dissipation fin extends into the inside of the heat dissipation box, and the fan is arranged inside the heat dissipation box.
In the above-mentioned realization in-process, at first pour into cold water into the water tank through the water inlet inside, when the temperature in the cylinder body begins to rise, cold water in the water tank can be to the processing of cooling down of cylinder body surface, when the temperature degree in the water tank uprises, can discharge water through the delivery port, and fin fixed mounting is in cylinder body one side, the inside unnecessary heat of cylinder body, can transmit the heat dissipation incasement through the fin, fine derivation with the inside unnecessary heat of cylinder body, the heat transmits the heat dissipation incasement, because the fan sets up in the inside of heat dissipation case, then open the fan, the heat that comes out with the fin transmission is bloied and is dispelled the heat, and then carry out water-cooling and air-cooled cooling heat dissipation to the cylinder body, thereby dispel the heat effectively with the inside heat that produces of cylinder body, the normal operation of engine has been guaranteed.
In a specific embodiment, a bracket is provided at one end of the cylinder.
In the implementation process, one end of the cylinder body is provided with the support, and the support mainly plays a role in supporting the cylinder body.
In a specific embodiment, a water tank is provided inside the water tank.
In the implementation process, a water tank is arranged in the water tank and used for containing cold water to cool the cylinder body.
In a specific embodiment, a first valve is arranged on one side of the water inlet, and a second valve is arranged on one side of the water outlet.
In the implementation process, one side of the water inlet is provided with a first valve which is mainly used for controlling the amount of cold water entering the water tank from the water inlet, one side of the water outlet is provided with a second valve which prevents water in the water tank from automatically flowing out of the water tank, and when the temperature of the water in the water tank is too high, the water can be discharged through the water outlet.
In a specific embodiment, a heat dissipation cavity is arranged inside the heat dissipation box, and the fan is fixedly installed inside the heat dissipation cavity.
In the implementation process, the heat dissipation cavity mainly stores the transferred heat, and the fan cools the transferred heat through air cooling.
In a specific embodiment, a radiating pipe is arranged on one side of the radiating box, the radiating pipe is communicated with the radiating cavity, and a sealing ring is arranged at one end of the radiating pipe.
In the above-mentioned realization process, when the inside high temperature of heat dissipation cavity, can open the sealing washer, inside the air can enter into heat dissipation cavity through the cooling tube, through air and the contact of heat dissipation cavity, also can dispel the heat effectively.
In a specific embodiment, a heat conducting fin is arranged at one end of the heat radiating fin, the heat conducting fin is fixedly connected with the heat radiating fin, a fixing bolt is arranged on one side of the heat conducting fin, the fixing bolt is in through connection with one side of the heat conducting fin, one end of the fixing bolt abuts against one side of the heat radiating fin, and the heat conducting fin is in through connection with one side of the heat radiating box.
In the implementation process, when the heat in the heat dissipation cavity is not completely dissipated, the heat can be transferred out through the heat conducting fins, and the heat is effectively dissipated by contacting with the air.
In a specific embodiment, a heat dissipation groove is formed on one side of the heat conducting fin, which is far away from the heat dissipation box.
In the implementation process, the heat dissipation groove is formed in one side, away from the heat dissipation box, of the heat conducting fin, and the contact area of the heat conducting fin and air is increased, so that the redundant heat in the heat dissipation cavity can be quickly dissipated.
In a specific embodiment, a clamping groove is formed at one end of the heat conducting sheet, and one end of the heat radiating sheet is inserted into the clamping groove.
In the implementation process, one end of the heat conducting fin is provided with a clamping groove which is mainly used for connecting the heat conducting fin with the radiating fin and transmitting heat out.
In a specific embodiment, the fan includes a motor and fan blades, the motor is disposed inside the heat dissipation cavity, and the fan blades are fixedly mounted at the output end of the motor.
In the implementation process, the fan blades are fixedly arranged at the output end of the motor, the motor drives the fan blades to generate wind, and the heat transmitted out from the heat dissipation cavity is subjected to air cooling treatment.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other relevant drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic diagram of a first perspective structure of an engine cylinder heat sink according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a structure at A in FIG. 1 according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram at B in FIG. 1 according to an embodiment of the present disclosure;
fig. 4 is a schematic structural view of a heat conducting sheet according to an embodiment of the present disclosure.
In the figure: 100-cylinder body; 110-a scaffold; 200-a cooling assembly; 210-a water tank; 211-water tank; 220-a water inlet; 221-a first valve; 230-a water outlet; 231-a second valve; 240-heat dissipation box; 241-a heat dissipation cavity; 242-radiating pipe; 243-sealing ring; 250-a heat sink; 251-a thermally conductive sheet; 2511-heat sink groove; 252-a fixing bolt; 253-card slot; 260-a fan; 261-a motor; 262-fan blades.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments given herein without making an invasive task, are within the scope of the present disclosure.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, a first feature being "on," "over," and "above" a second feature includes the first feature being directly on and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1-4, the present application provides an engine cylinder heat sink device including a cylinder block 100 and a cooling assembly 200, wherein the cooling assembly 200 is used for cooling and dissipating heat from the cylinder block 100.
Referring to fig. 1, a bracket 110 is disposed at one end of a cylinder block 100, and mainly plays a role of supporting the cylinder block 100.
Referring to fig. 1-4, the cooling assembly 200 includes a water tank 210, a water inlet 220, a water outlet 230, a heat dissipation tank 240, heat dissipation fins 250 and fans 260, the water tank 210 is fixedly installed at two sides of the cylinder body 100, the water inlet 220 is fixedly installed at one side of the water tank 210, the water inlet 220 is communicated with the water tank 210, the water outlet 230 is fixedly installed at one side of the water tank 210 away from the water inlet 220, the water outlet 230 is communicated with the water tank 210, the heat dissipation tank 240 is fixedly installed at one side of the water tank 210, the heat dissipation fins 250 are fixedly installed at one side of the cylinder body 100, at most four heat dissipation fins 250 are provided, the heat dissipation fins 250 are penetratingly connected to the water tank 210 and the heat dissipation tank 240, one end of the heat dissipation fins 250 extends into the heat dissipation tank 240, the fans 260 are provided inside the heat dissipation tank 240, at most two fans 260 are provided, a water tank 211 is provided inside the water tank 210 for containing cold water to cool the cylinder body 100, one side of the water inlet 220 is provided with a first valve 221, the water tank is mainly used for controlling the amount of cold water entering the water tank 210 from the water inlet 220, and the second valve 231 is arranged on one side of the water outlet 230 to prevent the water in the water tank 210 from automatically flowing out of the water tank 210, and when the temperature of the water in the water tank 210 is too high, the water can be discharged through the water outlet 230.
In some specific embodiments, a heat dissipation cavity 241 is disposed inside the heat dissipation box 240, the fan 260 is fixedly installed inside the heat dissipation cavity 241, the heat dissipation cavity 241 mainly stores the transferred heat, and the fan 260 performs air cooling heat dissipation on the transferred heat, a heat dissipation tube 242 is disposed at one side of the heat dissipation box 240, the heat dissipation tube 242 is communicated with the heat dissipation cavity 241, a sealing ring 243 is disposed at one end of the heat dissipation tube 242, when the temperature inside the heat dissipation cavity 241 is too high, the sealing ring 243 can be opened, air can enter the heat dissipation cavity 241 through the heat dissipation tube 242, and can be contacted with the heat dissipation cavity 241 through air, and can also perform effective heat dissipation, a heat conduction sheet 251 is disposed at one end of the heat dissipation fin 250, the heat conduction sheet 251 is fixedly connected with the heat dissipation fin 250, a fixing bolt 252 is disposed at one side of the heat conduction sheet 251, and the fixing bolt 252 is penetratingly connected to one side of the heat conduction sheet 251, fixing bolt 252 one end is supported in fin 250 one side, conducting strip 251 through connection is in heat dissipation case 240 one side, when the heat of the inside heat dissipation cavity 241 has not dispelled the heat completely, can go out the heat transfer through conducting strip 251, the heat dispels the heat effectively with the air contact, conducting strip 251 keeps away from heat dissipation case 240 one side is provided with heat dissipation recess 2511, conducting strip 251 one end is provided with draw-in groove 253, inside fin 250 one end inserts draw-in groove 253, fan 260 includes motor 261 and flabellum 262, motor 261 sets up inside heat dissipation cavity 241, flabellum 262 fixed mounting is in the output of motor 261, drive flabellum 262 through motor 261 and produce wind, carry out the forced air cooling processing with the heat that the interior transmission of heat dissipation cavity 241 came out.
The working principle of the engine cylinder heat dissipation device is as follows: firstly, cold water is injected into the water tank 210 through the water inlet 220, when the temperature in the cylinder body 100 begins to rise, the cold water in the water tank 210 can cool the surface of the cylinder body 100, when the temperature of the water in the water tank 210 becomes high, the water can be discharged through the water outlet 230, the radiating fin 250 is fixedly arranged on one side of the cylinder body 100, the redundant heat in the cylinder body 100 can be transferred into the radiating box 240 through the radiating fin 250, the redundant heat in the cylinder body 100 can be well led out and transferred into the radiating box 240, because the fan 260 is arranged in the radiating box 240, the motor 261 is then turned on, the fan blade 262 is fixedly connected with the output end of the motor 261, the fan blade 262 blows air to radiate the heat transferred by the radiating fin 250, and the water cooling and air cooling radiation are further carried out on the cylinder body 100, so that the heat generated in the cylinder body 100 can be effectively radiated, the normal operation of the engine is ensured.
It should be noted that the specific model specification of the motor 261 needs to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art in the field, so detailed description is omitted.
The powering of the motor 261 and its principle will be clear to a person skilled in the art and will not be described in detail here.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present application, and all the changes or substitutions should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. An engine cylinder heat dissipation device is characterized by comprising
A cylinder block (100);
the cooling assembly (200) comprises a water tank (210), a water inlet (220), a water outlet (230), a heat dissipation box (240), a heat dissipation plate (250) and a fan (260), wherein the water tank (210) is fixedly arranged on two sides of the cylinder body (100), the water inlet (220) is fixedly arranged on one side of the water tank (210), the water inlet (220) is communicated with the water tank (210), the water outlet (230) is far away from the water inlet (220) and is fixedly arranged on one side of the water tank (210), the water outlet (230) is communicated with the water tank (210), the heat dissipation box (240) is fixedly arranged on one side of the water tank (210), the heat dissipation plate (250) is fixedly arranged on one side of the cylinder body (100), the heat dissipation plate (250) is connected with the water tank (210) and the heat dissipation box (240) in a penetrating manner, one end of the heat dissipation plate (250) extends into the heat dissipation box (240), the fan (260) is disposed inside the heat dissipation case (240).
2. An engine cylinder heat sink according to claim 1, characterized in that the block (100) is provided with a bracket (110) at one end.
3. An engine cylinder heat sink according to claim 1, characterized in that a water tank (211) is provided inside the water tank (210).
4. An engine cylinder heat sink according to claim 1, characterized in that a first valve (221) is arranged on the side of the water inlet (220) and a second valve (231) is arranged on the side of the water outlet (230).
5. The engine cylinder heat sink according to claim 1, characterized in that a heat dissipation cavity (241) is provided inside the heat dissipation box (240), and the fan (260) is fixedly installed inside the heat dissipation cavity (241).
6. The engine cylinder heat sink according to claim 5, wherein a heat dissipating pipe (242) is disposed at one side of the heat dissipating box (240), the heat dissipating pipe (242) is communicated with the heat dissipating cavity (241), and a sealing ring (243) is disposed at one end of the heat dissipating pipe (242).
7. The cylinder heat sink for engine according to claim 1, wherein one end of the heat sink (250) is provided with a heat conducting plate (251), the heat conducting plate (251) is fixedly connected with the heat sink (250), one side of the heat conducting plate (251) is provided with a fixing bolt (252), the fixing bolt (252) is connected to one side of the heat conducting plate (251) in a penetrating manner, one end of the fixing bolt (252) abuts against one side of the heat sink (250), and the heat conducting plate (251) is connected to one side of the heat sink box (240) in a penetrating manner.
8. An engine cylinder heat sink according to claim 7, characterized in that the side of the heat conducting fin (251) remote from the heat sink box (240) is provided with a heat sink recess (2511).
9. The engine cylinder heat sink according to claim 8, wherein one end of the heat conductive fin (251) is provided with a locking groove (253), and one end of the heat sink (250) is inserted into the locking groove (253).
10. The engine cylinder heat sink according to claim 6, wherein the fan (260) comprises a motor (261) and fan blades (262), the motor (261) is disposed inside the heat dissipation cavity (241), and the fan blades (262) are fixedly mounted at an output end of the motor (261).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210232591.XA CN114687880B (en) | 2022-03-09 | 2022-03-09 | Engine cylinder heat abstractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210232591.XA CN114687880B (en) | 2022-03-09 | 2022-03-09 | Engine cylinder heat abstractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114687880A true CN114687880A (en) | 2022-07-01 |
| CN114687880B CN114687880B (en) | 2024-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210232591.XA Active CN114687880B (en) | 2022-03-09 | 2022-03-09 | Engine cylinder heat abstractor |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002047934A (en) * | 2000-08-04 | 2002-02-15 | Honda Motor Co Ltd | Cooling structure for internal combustion engine |
| CN204591506U (en) * | 2014-10-31 | 2015-08-26 | 重庆隆鑫发动机有限公司 | Motorcycle engine cylinder block |
| CN205477957U (en) * | 2016-03-30 | 2016-08-17 | 河南职业技术学院 | Automobile air cylinder |
| CN209781021U (en) * | 2019-03-30 | 2019-12-13 | 湖南库泠斯特科技有限公司 | Novel heat dissipation automobile engine cooling system |
| CN112177749A (en) * | 2020-09-29 | 2021-01-05 | 余华伟 | Heat dissipation device for automobile engine |
| CN112727739A (en) * | 2021-01-21 | 2021-04-30 | 宝华海恩斯压缩机(上海)有限公司 | Cylinder device |
-
2022
- 2022-03-09 CN CN202210232591.XA patent/CN114687880B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002047934A (en) * | 2000-08-04 | 2002-02-15 | Honda Motor Co Ltd | Cooling structure for internal combustion engine |
| CN1337522A (en) * | 2000-08-04 | 2002-02-27 | 本田技研工业株式会社 | Cooling structure of internal combustion engine |
| CN204591506U (en) * | 2014-10-31 | 2015-08-26 | 重庆隆鑫发动机有限公司 | Motorcycle engine cylinder block |
| CN205477957U (en) * | 2016-03-30 | 2016-08-17 | 河南职业技术学院 | Automobile air cylinder |
| CN209781021U (en) * | 2019-03-30 | 2019-12-13 | 湖南库泠斯特科技有限公司 | Novel heat dissipation automobile engine cooling system |
| CN112177749A (en) * | 2020-09-29 | 2021-01-05 | 余华伟 | Heat dissipation device for automobile engine |
| CN112727739A (en) * | 2021-01-21 | 2021-04-30 | 宝华海恩斯压缩机(上海)有限公司 | Cylinder device |
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| Publication number | Publication date |
|---|---|
| CN114687880B (en) | 2024-07-02 |
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