CN214499251U - Engine for vehicle and vehicle - Google Patents
Engine for vehicle and vehicle Download PDFInfo
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- CN214499251U CN214499251U CN202120366163.7U CN202120366163U CN214499251U CN 214499251 U CN214499251 U CN 214499251U CN 202120366163 U CN202120366163 U CN 202120366163U CN 214499251 U CN214499251 U CN 214499251U
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- water jacket
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Abstract
The application discloses an engine and vehicle for vehicle, the engine includes: a housing having a plurality of cylinders therein; the cover plate is arranged above the box body, a cylinder cover and an exhaust water jacket are arranged on the cover plate corresponding to each cylinder, a plurality of linear portions are arranged on one side, close to an exhaust valve guide pipe, of the exhaust water jacket, and each linear portion is arranged corresponding to a combustion chamber of each cylinder. Therefore, the straight line part arranged corresponding to the combustion chamber is arranged on the exhaust water jacket, and the heat of the combustion chamber is radiated through the straight line part, so that the thermal deformation of the pipe hole and the rod part of the exhaust valve guide pipe corresponding to the combustion chamber can be reduced, the opening and closing stability of the exhaust valve is ensured, meanwhile, the cooling effect of the exhaust valve guide pipes is consistent, the movement consistency of the exhaust valves is ensured, the abrasion of the exhaust valves is reduced, and the working stability of the engine is effectively improved.
Description
Technical Field
The utility model belongs to the technical field of the vehicle technique and specifically relates to an engine and vehicle for vehicle are related to.
Background
In the related art, when the exhaust manifold and the cylinder head are integrated on the cover plate of the engine, the thermal load of the cylinder head is increased by at least 10% to 20%, which puts higher demands on the cooling of the cylinder head.
In the prior art, the capacity of a cooling system is increased by increasing the flow rate of a cooling water pump so as to reduce the heat load, but the development cost and the purchase cost of the water pump are increased by using a high-flow cooling water pump; meanwhile, when the flow of the water pump is increased to a certain degree, the cooling efficiency is difficult to remarkably improve, an exhaust valve guide pipe is arranged on one side, close to the combustion chamber, of the upper part of the exhaust side, the cooling effect in the area is inconsistent, local thermal stress concentration can be caused, the exhaust valve guide pipe is abraded, the normal opening and closing of the exhaust valve are influenced, and the normal use of an engine is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model discloses an object is to provide an engine, the cooling effect of engine is better, and job stabilization nature is higher.
The application further proposes a vehicle having the above-mentioned engine.
An engine for a vehicle according to an embodiment of the first aspect of the present application includes: a housing having a plurality of cylinders therein; the cover plate is arranged above the box body, a cylinder cover and an exhaust water jacket are arranged on the cover plate corresponding to each cylinder, a plurality of linear portions are arranged on one side, close to an exhaust valve guide pipe, of the exhaust water jacket, and each linear portion is arranged corresponding to a combustion chamber of each cylinder.
According to the engine provided by the embodiment of the application, the straight line part which is arranged corresponding to the combustion chamber is arranged on the exhaust water jacket, and the heat dissipation is carried out on the combustion chamber through the straight line part, so that the thermal deformation of the pipe hole and the rod part of the exhaust valve guide pipe corresponding to the combustion chamber can be reduced, the opening and closing stability of the exhaust valve is ensured, meanwhile, the cooling effects of the exhaust valve guide pipes are consistent, the movement consistency of the exhaust valves is ensured, the abrasion of the exhaust valves is reduced, and the working stability of the engine is effectively improved.
According to some embodiments of the present application, the exhaust water jacket comprises: the exhaust water jacket is positioned between the exhaust upper water jacket and the exhaust lower water jacket; wherein the exhaust upper water jacket is for cooling an upper structure on an exhaust side of the cylinder head, the exhaust lower water jacket is for cooling a lower structure on the exhaust side, the exhaust connecting water jacket is for cooling an end face on the exhaust side, and the straight portion is formed on the exhaust upper water jacket.
In some embodiments, the straight portion of the exhaust upper water jacket is formed on a side of the exhaust upper water jacket facing the cylinder bore of the cylinder.
Further, the plurality of linear portions are provided at intervals in the longitudinal direction of the engine.
Further, the exhaust upper water jacket is provided with a plurality of branch flow holes, each of which is provided on a side of the straight portion away from the cylinder bore of the cylinder, and each of which is provided in correspondence with the straight portion.
According to some embodiments of the application, the plurality of straight portions are located at the same height and on the same plane.
Further, each cylinder is provided with two exhaust valves, each exhaust valve is provided with an exhaust valve guide pipe, and the length of each straight line part is larger than the transverse distance between the two exhaust valve guide pipes of the corresponding cylinder.
In some embodiments, one end of the exhaust gas upper water jacket is provided with a water-feeding portion, and the other end of the exhaust gas upper water jacket is provided with a water-discharging portion that communicates with the discharge port of the cylinder head.
Further, the exhaust connection water jacket is communicated with the exhaust upper water jacket and the exhaust lower water jacket, respectively, and the cooling water in the exhaust lower water jacket flows into the exhaust upper water jacket through the exhaust connection water jacket and is discharged through the drain portion.
According to the vehicle of the embodiment of the second aspect of the present application, comprising: the engine described in the above embodiments.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic illustration of an engine according to an embodiment of the present application;
FIG. 2 is a schematic illustration of a cover plate of an engine according to an embodiment of the present application;
FIG. 3 is a schematic diagram of the engagement of a cylinder head of an engine with an exhaust gas upper water jacket and an exhaust gas connecting water jacket according to an embodiment of the present application;
FIG. 4 is a schematic illustration of an exhaust gas upper water jacket and an exhaust gas connecting water jacket of an engine according to an embodiment of the present application;
FIG. 5 is a mating schematic diagram of an exhaust gas upper water jacket, an exhaust gas connecting water jacket, and an exhaust valve guide of an engine according to an embodiment of the present application.
Reference numerals:
the engine (100) is provided with a motor,
the housing 10 is provided with a plurality of openings,
a cover plate 20, a cylinder head 21, an exhaust port 211, an exhaust water jacket 22, an exhaust upper water jacket 221, an exhaust lower water jacket 222, an exhaust connecting water jacket 223, an upper water portion 224, a drain portion 225, a straight portion 226,
an exhaust valve conduit 30.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
An engine 100 and a vehicle according to an embodiment of the present invention are described below with reference to fig. 1 to 5.
As shown in fig. 1, an engine 100 for a vehicle according to an embodiment of the first aspect of the present application includes: a case 10 and a cover 20.
Wherein, the box body 10 is internally provided with a plurality of cylinders; a cover plate 20 is provided above the case 10, the cover plate 20 is provided with a cylinder head 21 and an exhaust water jacket 22 corresponding to each cylinder, the exhaust water jacket 22 is provided with a plurality of linear portions 226 on a side adjacent to the exhaust valve guide 30, and each linear portion 226 is provided corresponding to a combustion chamber of each cylinder (see fig. 4 and 5).
Specifically, the cover plate 20 is integrated with an exhaust manifold and a cylinder head 21, the cylinder head 21 covers the cylinder, a combustion chamber is defined between the cylinder head 21 and the cylinder, an exhaust valve guide 30 is used for discharging exhaust gas generated in the combustion chamber, an exhaust water jacket 22 is arranged adjacent to the cylinder head 21 to cool the cylinder head 21, a straight portion 226 is arranged on one side of the exhaust water jacket 22 adjacent to the combustion chamber, and the exhaust valve guide 30 is cooled through the straight portion 226.
It can be understood that the combustion chamber of each cylinder is correspondingly provided with the straight portion 226, the straight portion 226 is opposite to the exhaust valve of the combustion chamber, each combustion chamber is correspondingly provided with two exhaust valves, each exhaust valve is correspondingly provided with one exhaust valve guide 30, and the installation angles of the exhaust valve and the exhaust valve guide 30 are consistent, in order to ensure that the cooling effects of the exhaust valve guides 30 of the engine 100 are consistent, the straight portion 226 is arranged, so that each exhaust valve guide 30 is in surface-to-surface contact or opposite to the straight portion 226, the cooling effects of the exhaust valve guides 30 are consistent, the thermal deformation inconsistency of the exhaust valve guides 30 is avoided, the exhaust valve movement inconsistency is avoided, and the working stability of the engine 100 is improved.
It should be noted that the exhaust valve is obliquely arranged on the cylinder head 21, the exhaust valve guide 30 is arranged adjacent to the straight portion 226, the exhaust valve guide 30 continuously rubs to generate heat during the opening and closing process of the exhaust valve, and the straight portion 226 cools the exhaust valve guide 30, so that the thermal deformation of the pipe hole and the rod portion of the exhaust valve guide 30 can be reduced, and the stability of the continuous opening and closing of the exhaust valve can be ensured.
According to the engine 100 of the embodiment of the application, the straight line part 226 corresponding to the combustion chamber is arranged on the exhaust water jacket 22, and the straight line part 226 is used for dissipating heat of the combustion chamber, so that the thermal deformation of the pipe hole and the rod part of the exhaust valve guide 30 corresponding to the combustion chamber can be reduced, the opening and closing stability of the exhaust valve can be ensured, meanwhile, the cooling effects of the exhaust valve guides 30 are consistent, the movement consistency of the exhaust valves can be ensured, the abrasion of the exhaust valves can be reduced, and the working stability of the engine 100 can be effectively improved.
In the particular embodiment shown in fig. 2, the exhaust water jacket 22 includes, in accordance with some embodiments of the present application: an exhaust upper water jacket 221, an exhaust lower water jacket 222, and an exhaust connecting water jacket 223 between the exhaust upper water jacket 221 and the exhaust lower water jacket 222; wherein the exhaust upper water jacket 221 is used for cooling an upper structure on the exhaust side of the cylinder head 21, the exhaust lower water jacket 222 is used for cooling a lower structure on the exhaust side, the exhaust connecting water jacket 223 is used for cooling an end face on the exhaust side, and the straight portion 226 is formed on the exhaust upper water jacket 221.
Specifically, the exhaust upper water jacket 221 and the exhaust lower water jacket 222 extend in the same direction, the exhaust connection water jacket 223 is located at one end of the exhaust upper water jacket 221 and the exhaust lower water jacket 222 on the same side, and the exhaust connection water jacket 223 communicates with the exhaust upper water jacket 221 and the exhaust lower water jacket 222 to define the exhaust water jacket 22 which is substantially "C" shaped and surrounds the exhaust manifold, so that the cooling effect of the exhaust water jacket 22 can be improved.
It is understood that the straight portion 226 of the exhaust upper water jacket 221 is formed on the side of the exhaust upper water jacket 221 that faces the cylinder bore of the cylinder, i.e., the straight portion 226 is disposed adjacent to the cylinder (combustion chamber). Thus, the position of the straight portion 226 is more reasonable, the straight portion 226 arranged adjacent to the exhaust valve guide 30 can effectively cool the exhaust valve guide 30, and ensure the temperature consistency of the exhaust valve guides 30, so as to ensure the thermal deformation consistency of the exhaust valve guides 30, ensure the motion consistency of the exhaust valves, and reduce the abrasion of the exhaust valves.
The plurality of straight portions 226 are arranged at intervals in the longitudinal direction of the engine 100, the exhaust gas upper water jacket 221 has a plurality of branch flow holes, each of which is arranged on a side of the straight portion 226 away from a cylinder bore of the cylinder, and each of the branch flow holes is arranged corresponding to the straight portion 226. In this way, a uniform cooling effect of the plurality of spaced straight portions 226 may be ensured to further improve the temperature equalization effect between the plurality of exhaust valve ducts 30.
As shown in fig. 3, the number of straight portions 226 corresponds to the number of cylinders of engine 100, and a plurality of straight portions 226 are located at the same height and on the same plane.
Specifically, the cooling water in the exhaust upper water jacket 221 flows under pressure, and the plurality of linear portions 226 are located at the same height and on the same plane, so that the level of the cooling water in the region where the plurality of linear portions 226 are located can be ensured to be uniform, that is, the required driving pressure can be ensured to be uniform, and the cooling effect of the plurality of linear portions 226 can be ensured to be uniform.
The number of straight portions 226 corresponding to the number of cylinders of engine 100 means that the number of straight portions 226 corresponds to 4 when engine 100 is a four-cylinder engine 100, and the number of straight portions 226 corresponds to 6, 8, or 12 when engine 100 is a 6-cylinder, 8-cylinder, or 12-cylinder engine.
It will be appreciated that the length of each straight portion 226 is greater than the lateral distance between the two exhaust valve conduits 30 of its respective cylinder. In this way, the cooling effect of the straight portion 226 on the exhaust valve guide 30 can be further improved, and stable and reliable cooling of the two exhaust valve guides 30 corresponding to each combustion chamber can be ensured.
In some embodiments, as shown in fig. 2-5, one end of the exhaust upper water jacket 221 is provided with an upper water portion 224, the other end of the exhaust upper water jacket 221 is provided with a drain portion 225, the exhaust connection water jacket 223 is respectively communicated with the exhaust upper water jacket 221 and the exhaust lower water jacket 222, and the cooling water in the exhaust lower water jacket 222 flows into the exhaust upper water jacket 221 through the exhaust connection water jacket 223 and is discharged through the drain portion 225. In this way, the exhaust upper water jacket 221, the exhaust connection water jacket 222, and the exhaust lower water jacket 223 are made to have better communication, and the cooling effect of the exhaust water jacket 22 can be further improved to ensure the cooling effect of the exhaust passage of the exhaust manifold and the exhaust valve by the exhaust water jacket 22.
According to the vehicle of the embodiment of the second aspect of the present application, comprising: the engine 100 in the above embodiment.
According to the vehicle of the embodiment of the application, by adopting the engine 100 in the above embodiment, the working stability of the engine 100 can be improved, so as to improve the driving safety of the vehicle, and meanwhile, the occurrence of shaking or even flameout of the engine 100 in the working process can be avoided, and the riding comfort of the vehicle can be improved.
In the description of the present invention, 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", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.
In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An engine (100) for a vehicle, comprising:
a box body (10), wherein a plurality of cylinders are arranged in the box body (10);
the cover plate (20) is arranged above the box body (10), a cylinder cover (21) and an exhaust water jacket (22) are arranged on the cover plate (20) corresponding to each cylinder, a plurality of straight line parts (226) are arranged on one side, close to an exhaust valve guide pipe (30), of the exhaust water jacket (22), and each straight line part (226) is arranged corresponding to a combustion chamber of each cylinder.
2. The engine (100) for a vehicle according to claim 1, wherein the exhaust water jacket (22) includes: an exhaust upper water jacket (221), an exhaust lower water jacket (222), and an exhaust connecting water jacket (223) between the exhaust upper water jacket (221) and the exhaust lower water jacket (222); wherein
The exhaust upper water jacket (221) is used for cooling an upper structure on the exhaust side of the cylinder head (21), the exhaust lower water jacket (222) is used for cooling a lower structure on the exhaust side, the exhaust connecting water jacket (223) is used for cooling an end face on the exhaust side, and the straight line portion (226) is formed on the exhaust upper water jacket (221).
3. The engine (100) for a vehicle according to claim 2, characterized in that the straight portion (226) of the exhaust upper water jacket (221) is formed on a side of the exhaust upper water jacket (221) that faces a cylinder bore of the cylinder.
4. The engine (100) for a vehicle according to claim 3, wherein a plurality of the straight portions (226) are provided at intervals in a length direction of the engine (100).
5. The engine (100) for a vehicle according to claim 3, wherein the exhaust upper water jacket (221) is provided with a plurality of flow dividing holes, each of which is provided on a side of the straight line portion (226) away from a cylinder bore of the cylinder, and each of which is provided in correspondence with the straight line portion (226).
6. The engine (100) for a vehicle according to claim 3, wherein the plurality of straight line portions (226) are located on the same plane at the same height.
7. The engine (100) for a vehicle of claim 6, characterized in that each of the cylinders has two exhaust valves, each exhaust valve having an exhaust valve guide (30) disposed thereon, and each of the straight portions (226) has a length greater than a lateral distance between the two exhaust valve guides (30) of the corresponding cylinder.
8. The engine (100) for a vehicle according to claim 2, wherein one end of the exhaust gas upper water jacket (221) is provided with a water-feeding portion (224), and the other end of the exhaust gas upper water jacket (221) is provided with a water-discharging portion (225), the water-discharging portion (225) communicating with a discharge port (211) of the cylinder head (21).
9. The engine (100) for a vehicle according to claim 8, characterized in that the exhaust connection water jacket (223) communicates with the exhaust upper water jacket (221) and the exhaust lower water jacket (222), respectively, and the cooling water in the exhaust lower water jacket (222) flows into the exhaust upper water jacket (221) through the exhaust connection water jacket (223) and is discharged through the drain portion (225).
10. A vehicle, characterized by comprising: the engine (100) of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120366163.7U CN214499251U (en) | 2021-02-09 | 2021-02-09 | Engine for vehicle and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120366163.7U CN214499251U (en) | 2021-02-09 | 2021-02-09 | Engine for vehicle and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214499251U true CN214499251U (en) | 2021-10-26 |
Family
ID=78220452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120366163.7U Active CN214499251U (en) | 2021-02-09 | 2021-02-09 | Engine for vehicle and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214499251U (en) |
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2021
- 2021-02-09 CN CN202120366163.7U patent/CN214499251U/en active Active
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