CN214499249U

CN214499249U - Engine for vehicle and vehicle

Info

Publication number: CN214499249U
Application number: CN202120366080.8U
Authority: CN
Inventors: 纪雷; 杨力镔; 李东辉; 张鹏; 樊钳坤; 马明晔; 陈海龙; 李腾飞; 沈小栋; 李民; 赵金龙; 李亚洲; 王晋林; 胡佳佳; 马京卫
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-10-26
Anticipated expiration: 2031-02-09

Abstract

The utility model discloses an engine and vehicle for vehicle, the engine, include: a cover plate having a plurality of cylinder heads, each cylinder head having an intake side cooling line and an exhaust side cooling line connected in parallel; the cylinder cover is arranged on the box body, a cooling water jacket used for cooling the cylinder is arranged on the box body, and the cooling water jacket is communicated with the air inlet side cooling pipeline and the exhaust side cooling pipeline. From this, through cooling jacket and the side cooling tube way of admitting air, the side cooling tube way of exhausting that corresponds every cylinder head setting, can reduce the temperature between adjacent cylinder, avoid appearing thermal stress concentration between the adjacent cylinder, avoid the cylinder head to appear warping to improve the sealing performance of engine, avoid appearing scurrying the phenomenon and lead to the cooling water high temperature or oil-water mixture, improve the job stabilization nature of engine.

Description

Engine for vehicle and vehicle

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 obviously improve, particularly, the heat dissipation effect between two adjacent cylinders is poor, the heat dissipation is not ideal, the thermal deformation of the cylinder cover is easy to occur, the sealing performance is affected, and the blow-by phenomenon can occur in severe cases, so that the water temperature of cooling water of the engine is too high, even the oil and water are mixed, and the normal use of the engine is affected.

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 cover plate having a plurality of cylinder heads, each cylinder head having an intake side cooling line and an exhaust side cooling line connected in parallel; the cylinder cover is arranged on the box body, a cooling water jacket used for cooling the cylinder is arranged on the box body, and the cooling water jacket is communicated with the air inlet side cooling pipeline and the exhaust side cooling pipeline.

According to the engine of the embodiment of the application, through setting up the cooling jacket and the air inlet side cooling pipeline, the exhaust side cooling pipeline that correspond every cylinder head and set up, in the engine working process, can cool off every cylinder head effectively, reduce the temperature between adjacent cylinder effectively, avoid appearing thermal stress concentration between the adjacent cylinder, avoid the cylinder head to appear warping, with the sealing performance who improves the engine, avoid appearing scurrying the phenomenon and lead to the cooling water high temperature or oil-water mixture, improve the job stabilization nature of engine.

According to some embodiments of the present application, the cooling water jacket is provided on an exhaust side of the cylinder, and the cooling water jacket directly communicates with the exhaust side cooling line.

In some embodiments, an exhaust side water channel and an intake side water channel are further disposed on the cylinder, one end of the exhaust side water channel communicates with the cooling water jacket, the other end of the exhaust side water channel communicates with the intake side water channel, and the other end of the intake side water channel communicates with the intake side cooling line.

Furthermore, an included angle is formed between the air inlet side water channel and the air exhaust side water channel.

Furthermore, the included angle between the axis of the exhaust side water channel and the upper surface of the box body is a, the included angle between the axis of the intake side water channel and the upper surface of the box body is b, wherein a is more than or equal to 20 degrees and less than or equal to 45 degrees, and b is more than or equal to 20 degrees and less than or equal to 45 degrees.

Furthermore, the diameter of the exhaust side water channel is c, the diameter of the air inlet side water channel is d, wherein c is larger than or equal to 2mm and smaller than or equal to 6mm, and d is larger than or equal to 2mm and smaller than or equal to 6 mm.

Further, a distance L from a junction of the intake side water passage and the exhaust side water passage to an upper surface of the tank body satisfies: l is more than or equal to 5mm and less than or equal to 40 mm.

According to some embodiments of the application, the engine further comprises: a gasket provided between the case and the cover plate, the gasket having a first communication hole communicating with the intake side cooling line and a second communication hole communicating with the exhaust side cooling line.

In some embodiments, a cover plate water outlet is further provided on the cover plate, and the cooling water in the air intake side cooling pipeline and the air exhaust side cooling pipeline is discharged through the cover plate water outlet.

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 an enlarged schematic view of area A of FIG. 1;

FIG. 3 is a schematic diagram of a cover plate and a gasket of an engine according to an embodiment of the present application.

Reference numerals:

the engine (100) is provided with a motor,

a cover plate 10, an air inlet side cooling pipeline 11, an air exhaust side cooling pipeline 12, a cover plate water outlet 13,

a tank 20, a cooling water jacket 21, an exhaust side water passage 22, an intake side water passage 23,

a gasket 30, a first communication hole 31, and a second communication hole 32.

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 3.

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 cover plate 10 and a case 20.

Wherein the head plate 10 has a plurality of cylinder heads each having an intake side cooling line 11 and an exhaust side cooling line 12 connected in parallel; the case 20 has a plurality of cylinders, the cylinders correspond to the cylinder heads one by one, the cover plate 10 covers the case 20, a cooling water jacket 21 for cooling the cylinders is provided on the case 20, and the cooling water jacket 21 communicates with the intake-side cooling pipe 11 and the exhaust-side cooling pipe 12.

Specifically, referring to fig. 2, in the engine 100 according to the embodiment of the present application, a cylinder head and an exhaust manifold are integrated on a cover plate 10, the cylinder corresponds to the cylinder head to define a combustion chamber, and the combustion chamber is selectively communicated with the exhaust manifold through an exhaust valve to exhaust gas through the exhaust manifold after combustion in the combustion chamber is completed.

Furthermore, an intake side cooling pipe 11 and an exhaust side cooling pipe 12 are further provided on the case 20 for cooling the cover plate 10, a cooling water jacket 21 is provided on the case 20, the cooling water jacket 21 is communicated with the intake side cooling pipe 11 and the exhaust side cooling pipe 12, and the intake side cooling pipe 11 and the exhaust side cooling pipe 12 are provided in parallel in a region where each cylinder head is located, so that during operation of the engine 100, the exhaust side cooling pipe 12 and the intake side cooling pipe 11 cool adjacent cylinders to each other to effectively reduce the temperature between the adjacent cylinders, and at the same time, the intake side and the exhaust side of the cylinder head are close to each other to avoid thermal stress concentration.

According to the engine 100 of the embodiment of the application, by arranging the cooling water jacket 21 and the air inlet side cooling pipeline 11 and the air outlet side cooling pipeline 12 which are arranged corresponding to each cylinder cover, in the working process of the engine 100, each cylinder cover can be effectively cooled, the temperature between adjacent cylinders is effectively reduced, the thermal stress concentration between the adjacent cylinders is avoided, the deformation of the cylinder covers is avoided, the sealing performance of the engine 100 is improved, the phenomenon of channeling is avoided, the water temperature of cooling water is too high or oil and water are mixed, and the working stability of the engine 100 is improved.

In the specific embodiment shown in fig. 2, according to some embodiments of the present application, the cooling water jacket 21 is disposed on the exhaust side of the cylinder, and the cooling water jacket 21 is directly communicated with the exhaust side cooling pipe 12, and the cylinder is further provided with an exhaust side water channel 22 and an intake side water channel 23, one end of the exhaust side water channel 22 is communicated with the cooling water jacket 21, the other end of the exhaust side water channel 22 is communicated with the intake side water channel 23, and the other end of the intake side water channel 23 is communicated with the intake side cooling pipe 11.

Specifically, the cooling water in the cooling jacket 21 may be directly supplied to the exhaust side cooling pipe 12 or supplied to the intake side cooling pipe 11 through the exhaust side water passage 22 and the intake side water passage 23 to cool the cylinder head, and the cooling water in the cooling jacket 21 flows from a high pressure region to a low pressure region, so that the cooling water may be simultaneously supplied to the intake side cooling pipe 11 and the exhaust side cooling pipe 12, thereby ensuring the cooling effect of the exhaust side cooling pipe 12 and the intake side cooling pipe 11 connected in parallel and effectively cooling the cylinder head.

Furthermore, it can be understood that, during the circulation of the exhaust side water passage 22 and the intake side water passage 23, the exhaust side water passage 22 and the intake side water passage 23 are located between the adjacent cylinders or between the end surface of the case 20 and the cylinders, so that during the supply of the cooling water to the intake side cooling pipe 11 by the cooling water jacket 21, the cylinders are cooled by the cooling water in the intake side water passage 23 and the exhaust side water passage 22, and the cooling effect of the cylinders can also be improved, the temperature between the adjacent cylinders can be effectively reduced, the thermal deformation of the cylinder head can be further avoided, and the operation stability of the engine 100 can be improved. As shown in fig. 2, an included angle is formed between the air inlet side water channel 23 and the air outlet side water channel 22, an included angle between the axis of the air outlet side water channel 22 and the upper surface of the box body 20 is a, and an included angle between the axis of the air inlet side water channel 23 and the upper surface of the box body 20 is b, wherein a is greater than or equal to 20 degrees and less than or equal to 45 degrees, and b is greater than or equal to 20 degrees and less than or equal to 45 degrees.

Thus, the intake side water channel 23 and the exhaust side water channel 22 both satisfy the above angle range, and the connecting line of the intake side water channel 23 and the exhaust side water channel 22 is "V" shaped, so that the cooling area of the exhaust side water channel 22 and the intake side water channel 23 can be increased, the cooling effect is improved, and the intake side water channel 23 and the exhaust side water channel 22 have better cooling effect.

Furthermore, the diameter of the exhaust side water channel 22 is c, the diameter of the intake side water channel 23 is d, wherein c is larger than or equal to 2mm and smaller than or equal to 6mm, and d is larger than or equal to 2mm and smaller than or equal to 6 mm. From this, make the diameter of air intake side water course 23 and the diameter of exhaust side water course 22 more reasonable, can ensure to supply to the flow of the cooling water in the air intake side cooling circuit 11 and satisfy the user demand to improve the cooling effect of cylinder head, make the flow of air intake side water course 23 and exhaust side water course 22 more reasonable simultaneously, can further improve the cooling effect of air intake side water course 23 and exhaust side water course 22 to the cylinder.

As shown in fig. 2, a distance L from the upper surface of the tank 20 at the junction of the intake side water passage 23 and the exhaust side water passage 22 satisfies: l is more than or equal to 5mm and less than or equal to 40 mm. In this way, the extension lengths of the intake side water passage 23 and the exhaust side water passage 22 are made more reasonable, and the cooling effect of the intake side water passage 23 and the exhaust side water passage 22 on the cylinders is further improved.

As shown in fig. 3, according to some embodiments of the present application, engine 100 further comprises: and a gasket 30, the gasket 30 being disposed between the case 20 and the cover plate 10, the gasket 30 having a first communication hole 31 communicating with the intake side cooling pipe 11 and a second communication hole 32 communicating with the exhaust side cooling pipe 12, the cover plate 10 further having a cover plate water outlet 13, and the cooling water in the intake side cooling pipe 11 and the exhaust side cooling pipe 12 being discharged through the cover plate water outlet 13.

That is, the cooling water in the cooling water jacket 21 enters the exhaust side cooling pipe 12 through the first communication hole 31 and is discharged through the cover plate water outlet 13; the air flows through the exhaust side water channel 22, the air inlet side water channel 23 and the second communication hole 32 in sequence to enter the air inlet side cooling pipeline 11 and is discharged through the cover plate water outlet 13, so that complete cylinder cooling circulation is completed, effective cooling of cylinders is achieved, overhigh temperature between adjacent cylinders is avoided, stress concentration or deformation of the gasket 30 or the cylinder cover is avoided, the phenomenon of channeling is avoided, the air tightness of the engine 100 is improved, and the working stability of the engine 100 is improved.

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 present application, engine 100 in the above embodiment is adopted, so that the operating stability of engine 100 is higher, and the running safety 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, "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

1. An engine (100) for a vehicle, comprising:

a cover plate (10), the cover plate (10) having a plurality of cylinder heads, each of the cylinder heads having an intake side cooling line (11) and an exhaust side cooling line (12) connected in parallel;

the cylinder cooling structure comprises a box body (20), wherein the box body (20) is provided with a plurality of cylinders which correspond to the cylinder heads in a one-to-one mode, the cover plate (10) covers the box body (20), a cooling water jacket (21) used for cooling the cylinders is arranged on the box body (20), and the cooling water jacket (21) is communicated with the air inlet side cooling pipeline (11) and the air outlet side cooling pipeline (12).

2. The engine (100) for a vehicle according to claim 1, characterized in that the cooling water jacket (21) is provided on the exhaust side of the cylinder, and the cooling water jacket (21) directly communicates with the exhaust side cooling pipe (12).

3. The engine (100) for a vehicle according to claim 2, wherein an exhaust side water passage (22) and an intake side water passage (23) are further provided on the cylinder, one end of the exhaust side water passage (22) communicates with the cooling water jacket (21), the other end of the exhaust side water passage (22) communicates with the intake side water passage (23), and the other end of the intake side water passage (23) communicates with the intake side cooling line (11).

4. The engine (100) for a vehicle according to claim 3, wherein the intake side water passage (23) and the exhaust side water passage (22) have an angle therebetween.

5. The engine (100) for a vehicle according to claim 3, wherein an angle between an axis of the exhaust side water passage (22) and an upper surface of the tank (20) is a, and an angle between an axis of the intake side water passage (23) and an upper surface of the tank (20) is b, wherein 20 ° ≦ a ≦ 45 °, and 20 ° ≦ b ≦ 45 °.

6. The engine (100) for a vehicle according to claim 3, wherein the diameter of the exhaust side water passage (22) is c, and the diameter of the intake side water passage (23) is d, wherein 2mm ≦ c ≦ 6mm, and 2mm ≦ d ≦ 6 mm.

7. The engine (100) for a vehicle according to claim 3, wherein a distance L from a junction of the intake side water passage (23) and the exhaust side water passage (22) to an upper surface of the tank (20) satisfies: l is more than or equal to 5mm and less than or equal to 40 mm.

8. The engine (100) for a vehicle according to claim 1, further comprising: a gasket (30), the gasket (30) being disposed between the case (20) and the cover plate (10), the gasket (30) having a first communication hole (31) communicating with the intake side cooling line (11) and a second communication hole (32) communicating with the exhaust side cooling line (12).

9. The engine (100) for a vehicle according to claim 1, characterized in that a cover water outlet (13) is further provided on the cover (10), and the cooling water in the intake side cooling line (11) and the exhaust side cooling line (12) is discharged through the cover water outlet (13).

10. A vehicle, characterized by comprising: the engine (100) of any of claims 1-9.