Engine water jacket partition plate, engine and vehicle

By installing a partition with a convex convex in the engine cylinder body water jacket, the problem of cooling pipeline design in the prior art increases manufacturing cost and reduces reliability, achieving efficient drainage of coolant and improving engine assembly efficiency.

CN222686776UActive Publication Date: 2025-03-28GUANGZHOU AUTOMOBILE GROUP CO LTD
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Patent Information

Application Number
CN202421203173.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-29
Publication Date
2025-03-28
Estimated Expiration
2034-05-29

AI Technical Summary

Technical Problem

In the prior art, in order to guide the flow of coolant in the engine water jacket, a longer cooling pipeline is required to be provided on the periphery of the cylinder block or cylinder head, which increases the manufacturing cost of the engine and reduces reliability.

Method used

An engine water jacket partition is designed, including a partition body installed in the water jacket of the engine cylinder block and a flow-guiding convex edge arranged on the partition body. A plurality of flow guide surfaces are provided on the convex edge to form a plurality of flow guide channels to guide the coolant from the inlet to the exhaust side, avoiding the design of direct cooling pipelines for the cylinder.

Benefits of technology

By installing the engine water jacket partition in the cylinder water jacket, the cooling liquid is drained, so that there is no need to install a water pipe for draining liquid on the cylinder, reducing engine components, reducing manufacturing costs and improving assembly efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of engine parts, and particularly relates to an engine water jacket partition plate, an engine and a vehicle, the engine water jacket partition plate comprises a partition plate body installed in a cylinder body water jacket of the engine and a flow guide protruding edge arranged on the partition plate body in a protruding mode; the side, away from the partition plate body, of the flow guide protruding edge abuts against the inner side wall of the cylinder block water jacket. A first flow guide surface is arranged on the flow guide convex edge; a first flow guide channel used for guiding cooling liquid entering from the water inlet to the exhaust side of the engine cylinder body is formed among the partition plate body, the first flow guide face and the inner side wall of the cylinder body water jacket. According to the engine water jacket partition plate, the engine water jacket partition plate is installed in the cylinder body water jacket, cooling liquid on the air inlet side of the cylinder body water jacket can be guided to the exhaust side of the cylinder body water jacket, a water pipe for guiding liquid does not need to be arranged on a cylinder body, parts of an engine are reduced, the manufacturing cost of the engine is reduced, and the assembling efficiency of the engine is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of engine components, in particular to an engine water jacket baffle, an engine and a vehicle. Background Art

[0002] The fuel in the engine will emit a lot of heat when it burns and expands. Excessive heat can cause excessive deformation of the cylinder bore, cylinder scuffing and other faults. Therefore, a water jacket is set around the cylinder bore of the engine. The coolant in the water jacket takes away part of the heat released by combustion, reducing the temperature around the cylinder bore. In the prior art, in order to guide the flow of coolant in the water jacket, a long cooling pipeline needs to be set around the cylinder block or cylinder head; the design of the cooling pipeline in the above solution not only increases the manufacturing cost of the engine, but also reduces the reliability of the engine. Utility Model Content

[0003] The utility model aims at solving the technical problems in the prior art such as the need to arrange a relatively long cooling pipeline on a cylinder body to guide the flow direction of liquid in a water jacket, and proposes an engine water jacket partition, an engine and a vehicle.

[0004] In order to solve the above problems, the first embodiment of the utility model provides an engine water jacket baffle, comprising a baffle body installed in the cylinder water jacket of the engine, and a guide convex edge protruding from the baffle body; the guide convex edge is abutted against the inner side wall of the cylinder water jacket on a side away from the baffle body;

[0005] A first guide surface is provided on the guide convex edge; the first guide surface is arranged on the side of the guide convex edge facing the water inlet of the engine cylinder block; a first guide channel for guiding the coolant entering the water inlet to the exhaust side of the engine cylinder block is formed between the partition body, the first guide surface and the inner wall of the cylinder water jacket.

[0006] Optionally, a second guide surface is also provided on the guide convex edge; the second guide surface is arranged on the side of the guide convex edge away from the water inlet of the cylinder water jacket; a second guide channel for guiding the coolant returning from the exhaust side of the engine cylinder body to the water outlet of the engine cylinder body is formed between the partition body, the second guide surface and the inner wall of the cylinder water jacket.

[0007] Optionally, a third guide surface is provided on the guide convex edge; the third guide surface is arranged on the side of the guide convex edge facing the water inlet of the cylinder water jacket; a third guide channel is formed between the partition body, the third guide surface and the inner wall of the cylinder water jacket; the third guide channel is connected to the first guide channel; the third guide channel is used to guide the coolant entering the water inlet to the cooling channel used to cool the oil cooler of the engine cylinder block.

[0008] Optionally, the partition body includes a bending plate inserted at the connection between two adjacent cylinder water jackets, and a first arc plate and a second arc plate respectively inserted in the two adjacent cylinder water jackets, the first arc plate, the bending plate and the second arc plate are connected in sequence, and the guide convex edge is arranged on the first arc plate, the bending plate and the second arc plate.

[0009] Optionally, the guide ridges are provided on two opposite side surfaces of the partition body.

[0010] Optionally, the guide protrusion is arranged on the side of the partition body facing the water inlet; the side of the partition body away from the water inlet is also provided with a positioning protrusion for abutting the engine cylinder block to limit the installation position of the partition body.

[0011] Optionally, the guide ridge is arranged at the bottom of the partition body; the positioning ridge is arranged at the top of the partition body and is flush with the top surface of the engine cylinder block.

[0012] The second embodiment of the utility model also provides an engine, including a cylinder block, a cylinder head and the above-mentioned engine water jacket partition, the cylinder block is provided with a cylinder water jacket, and a water inlet and a water outlet both connected to the cylinder water jacket, the cylinder head is installed on the cylinder block and is used to cover the cylinder water jacket.

[0013] Optionally, the cylinder head is provided with a cylinder head water jacket communicating with an end of the cylinder body water jacket away from the water inlet;

[0014] The engine further comprises a water pump and an oil cooler mounted on the cylinder block, and the cylinder block is further provided with a cooling channel for cooling the oil cooler; the oil cooler inlet of the cooling channel is connected to an end of the cylinder head water jacket away from the cylinder block water jacket, and the oil cooler outlet of the cooling channel is connected to the water outlet;

[0015] The outlet of the water pump is connected to the water inlet, and the inlet of the water pump is connected to the water outlet.

[0016] Optionally, the engine further comprises a rear end baffle installed in the cylinder water jacket, the rear end baffle being used to separate the cylinder water jacket into an intake side water jacket and an exhaust side water jacket;

[0017] The partition body is installed in the intake side water jacket, and the first guide surface is used to guide the coolant in the intake side water jacket to the exhaust side water jacket.

[0018] The third embodiment of the utility model further provides a vehicle, characterized in that it comprises the above-mentioned engine.

[0019] In the utility model, the engine water jacket baffle comprises a baffle body installed in the cylinder water jacket of the engine, and a guide convex edge protruding from the baffle body; the guide convex edge is provided with a first guide surface on the side of the water inlet of the engine cylinder body; when the engine water jacket baffle is inserted into the cylinder water jacket, the guide convex edge abuts against the inner side wall of the cylinder water jacket, and a first guide channel for guiding the coolant entering the water inlet to the exhaust side of the engine cylinder body is formed between the baffle body, the first guide surface and the inner side wall of the cylinder water jacket. The coolant flows from the water inlet of the cylinder body into the cylinder water jacket on the intake side. Due to the blocking and guiding effect of the guide convex edge, the coolant will flow along the first guide surface (first guide channel) at the bottom of the guide convex edge into the cylinder water jacket on the exhaust side of the cylinder body. The coolant on the exhaust side of the cylinder water jacket will flow upward into the exhaust side of the cylinder head water jacket on the cylinder head, and the coolant on the intake side of the cylinder head water jacket will flow downward into the cylinder water jacket. In the utility model, the engine water jacket baffle is installed in the cylinder water jacket, which can guide the coolant on the intake side of the cylinder water jacket to the exhaust side of the cylinder water jacket. There is no need to set a water pipe for draining the liquid on the cylinder body, which reduces the components of the engine, thereby reducing the manufacturing cost of the engine and improving the assembly efficiency of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 A schematic diagram of a top view of an engine water jacket baffle provided by an embodiment of the utility model installed on a cylinder body;

[0022] Figure 2 A schematic diagram of the structure of an engine water jacket baffle provided by an embodiment of the utility model;

[0023] Figure 3 A structural schematic diagram of an engine water jacket baffle from another perspective provided by an embodiment of the utility model;

[0024] Figure 4 A schematic diagram of the explosion structure of an engine provided by an embodiment of the utility model;

[0025] Figure 5 A schematic diagram of the flow of coolant in an engine is provided for one embodiment of the utility model;

[0026] Figure 6 A schematic diagram of the flow of coolant in a cylinder is provided for one embodiment of the utility model.

[0027] The reference numerals in the specification are as follows:

[0028] 1. Engine water jacket baffle; 11. Baffle body; 12. Guide ridge; 121. First guide surface; 122. Second guide surface; 123. Third guide surface; 13. Positioning ridge; 2. Cylinder block; 21. Cylinder water jacket; 22. Water inlet; 23. Water outlet; 24. Oil cooler inlet; 25. Oil cooler outlet; 3. Cylinder head; 4. Water pump; 5. Oil cooler; 6. Rear baffle; 7. Cylinder gasket. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] It should be understood that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", and "middle" are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations of the utility model.

[0031] like Figures 1 to 3 As shown, the first embodiment of the utility model provides an engine water jacket baffle 1, comprising a baffle body 11 installed in a cylinder water jacket 21 of an engine, and a guide protrusion 12 protruding from the baffle body 11; the guide protrusion 12 abuts against the inner wall of the cylinder water jacket 21 on a side away from the baffle body 11; it can be understood that the baffle body 11 and the guide protrusion 12 are an integrally formed part, and the guide protrusion is arranged on the side of the baffle body 11 and extends toward the side.

[0032] like Figure 5 and Figure 6 As shown, the guide ridge 12 is provided with a first guide surface 121; the first guide surface 121 is arranged on the side of the guide ridge 12 facing the water inlet 22 of the engine cylinder 2; a first guide channel (not shown in the figure) is formed between the partition body 11, the first guide surface 121 and the inner side wall of the cylinder water jacket 21 for guiding the coolant entering the water inlet 22 to the exhaust side of the engine cylinder 2. It can be understood that the first guide surface 121 is arranged at the bottom of the guide ridge 12; when the water jacket partition is inserted into the cylinder water jacket 21, the guide ridge 12 abuts against the inner side wall of the cylinder water jacket 21.

[0033] In the utility model, the engine water jacket baffle 1 comprises a baffle body 11 installed in the cylinder water jacket 21 of the engine, and a guide ridge 12 protruding from the baffle body 11; the guide ridge 12 is provided with a first guide surface 121 on the side of the water inlet 22 of the engine cylinder 2; when the engine water jacket baffle 1 is inserted into the cylinder water jacket 21, the guide ridge 12 abuts against the inner side wall of the cylinder water jacket 21, and a first guide channel for guiding the coolant entering the water inlet 22 to the exhaust side of the engine cylinder 2 is formed between the baffle body 11, the first guide surface 121 and the inner side wall of the cylinder water jacket 21. The coolant flows from the water inlet 22 of the cylinder block 2 into the cylinder water jacket 21 on the intake side. Due to the blocking and guiding effect of the guide ridge 12, the coolant will flow along the first guide surface 121 (first guide channel) at the bottom of the guide ridge 12 into the cylinder water jacket 21 on the exhaust side of the cylinder block 2. The coolant on the exhaust side of the cylinder water jacket 21 will flow upward into the exhaust side of the cylinder head water jacket on the cylinder head 3, and the coolant on the intake side of the cylinder head water jacket will flow downward into the cylinder water jacket 21. In the utility model, the engine water jacket partition 1 is installed in the cylinder water jacket 21, which can guide the coolant on the intake side of the cylinder water jacket 21 to the exhaust side of the cylinder water jacket 21. There is no need to set a water pipe for draining the liquid on the cylinder block 2, which reduces the components of the engine, thereby reducing the manufacturing cost of the engine and improving the assembly efficiency of the engine.

[0034] In one embodiment, if Figure 2 , Figure 5 as well as Figure 6 As shown, the guide ridge 12 is also provided with a second guide surface 122; the second guide surface 122 is arranged on the guide ridge 12 on the side away from the water inlet 22 of the cylinder water jacket 21; a second guide channel for guiding the coolant returning from the exhaust side of the engine cylinder 2 to the water outlet 23 of the engine cylinder 2 is formed between the partition body 11, the second guide surface 122 and the inner side wall of the cylinder water jacket 21. It can be understood that the first guide surface 121 and the second guide surface 122 are respectively arranged on the upper and lower surfaces of the guide ridge 12.

[0035] Specifically, the coolant flows from the water inlet 22 of the cylinder block 2 into the cylinder water jacket 21 on the intake side. Due to the blocking and guiding effect of the guide ridge 12, the coolant will flow along the first guide surface 121 (first guide channel) at the bottom of the guide ridge 12 into the cylinder water jacket 21 on the exhaust side of the cylinder block 2. The coolant on the exhaust side of the cylinder water jacket 21 will flow upward into the exhaust side of the cylinder head water jacket. The coolant on the intake side of the cylinder head water jacket will flow downward into the intake side of the cylinder water jacket 21 and flow along the second guide surface 122 (second guide channel) above the guide ridge 12 to the water outlet 23 of the engine cylinder block 2. In this embodiment, the engine water jacket partition 1 can not only guide the coolant on the intake side of the cylinder water jacket 21 to the exhaust side, but also guide the coolant on the intake side of the cylinder water jacket 21 to the water outlet 23, thereby further improving the cooling efficiency of the cylinder block 2.

[0036] In one embodiment, if Figure 2 , Figure 5 as well as Figure 6 As shown, the guide ridge 12 is provided with a third guide surface 123; the third guide surface 123 is arranged on the side of the guide ridge 12 facing the water inlet 22 of the cylinder water jacket 21; a third guide channel is formed between the partition body 11, the third guide surface 123 and the inner side wall of the cylinder water jacket 21; the third guide channel is connected to the first guide channel; the third guide channel is used to guide the coolant entering the water inlet 22 to the oil cooler 5 on the engine cylinder 2. It can be understood that the first guide surface 121 and the third guide surface 123 are both located at the bottom of the guide ridge 12, and are respectively located on the left and right sides of the bottom of the guide ridge 12.

[0037] Specifically, the coolant flows from the bottom into the cylinder water jacket 21 on the intake side. Due to the blocking and guiding effect of the guide convex edge 12, a part of the coolant will flow into the cylinder water jacket 21 on the exhaust side of the cylinder 2 along the first guide surface 121 (first guide channel), the coolant on the exhaust side of the cylinder water jacket 21 will flow upward into the exhaust side of the cylinder head water jacket, the coolant on the intake side of the cylinder head water jacket will flow downward into the intake side of the cylinder water jacket 21, and the coolant on the intake side of the cylinder water jacket 21 will flow along the second guide surface 122 (second guide channel) to the water outlet 23 of the engine cylinder 2; a part of the coolant will flow into the oil cooler 5 along the third guide surface 123 (third guide channel), and this part of the coolant will flow into the cylinder water jacket 21 after cooling the oil cooler 5, and finally flow out through the water outlet 23 of the cylinder 2. In this embodiment, the designs of the first guide surface 121 , the second guide surface 122 and the third guide surface 123 further improve the cooling efficiency of the engine water jacket partition 1 on the engine cylinder block 2 .

[0038] In one embodiment, if Figures 1 to 3 As shown, the partition body 11 includes a bending plate inserted at the connection of two adjacent cylinder water jackets 21, and a first arc plate and a second arc plate respectively inserted in the two adjacent cylinder water jackets 21, the first arc plate, the bending plate and the second arc plate are connected in sequence, and the guide convex edge 12 is arranged on the first arc plate, the bending plate and the second arc plate. It can be understood that the first arc plate, the bending plate and the second arc plate are an integrally formed part; the cylinder body 2 can be composed of a plurality of cylinder holes distributed at intervals, each cylinder hole is correspondingly provided with a cylinder water jacket 21, and two adjacent cylinder water jackets 21 are connected to each other. In this embodiment, when the partition body 11 is installed in the cylinder water jacket 21 of the engine cylinder block 2, the first arc plate and the second arc plate are respectively inserted into two adjacent cylinder water jackets 21 (that is, the first arc plate and the second arc plate are respectively inserted into the intake side of two adjacent cylinder water jackets 21), and the bent plate is inserted at the connection between the two adjacent cylinder water jackets 21. The guide convex edge 12 on the first arc plate and the guide convex edge 12 on the second arc plate can guide the coolant in the two adjacent cylinder water jackets 21, thereby further improving the cooling efficiency of the engine water jacket partition 1 on the engine cylinder block 2.

[0039] In one embodiment, if Figure 2 and Figure 3 As shown, the guide ridges 12 are provided on two opposite sides of the partition body 11. It can be understood that the guide ridges 12 are provided on the left and right side walls or the front and rear side walls of the partition body 11.

[0040] In one embodiment, if Figures 1 to 3 As shown, the guide ridge 12 is arranged on the side of the partition body 11 facing the water inlet 22; the side of the partition body 11 away from the water inlet 22 is also provided with a positioning ridge 13 for abutting the engine cylinder block 2 to define the installation position of the partition body 11. It can be understood that the positioning ridge 13 is arranged on the top of the partition body 11, and the guide ridge 12 is arranged on the bottom of the partition body 11. In this embodiment, when the partition body 11 is installed in the cylinder water jacket 21 of the engine cylinder block 2, the positioning ridge 13 abuts against the top surface of the engine cylinder block 2, so that the positioning ridge 13 can play a role in stabilizing the engine water jacket partition 1 on the cylinder block 2.

[0041] In one embodiment, if Figure 1As shown, the guide ridge 12 is arranged at the bottom of the partition body 11; the positioning ridge 13 is arranged at the top of the partition body 11 and is flush with the top surface of the engine cylinder block 2. In this embodiment, when the partition body 11 is installed in the cylinder water jacket 21 of the engine cylinder block 2, the end of the positioning ridge 13 away from the partition body 11 is flush with the top surface of the engine cylinder block 2, ensuring the sealing of the cylinder head 3 covering the cylinder block 2.

[0042] like Figure 4 As shown, the second embodiment of the utility model further provides an engine, comprising a cylinder block 2, a cylinder head 3 and the above-mentioned engine water jacket baffle 1, wherein the cylinder block 2 is provided with a cylinder block water jacket 21, and a water inlet 22 and a water outlet 23 both connected to the cylinder block water jacket 21, and the cylinder head 3 is mounted on the cylinder block 2 and used to cover the cylinder block water jacket 21. Preferably, the engine further comprises a cylinder gasket 7 disposed between the cylinder block 2 and the cylinder head 3; and the cylinder head 3 is provided with a cylinder head water jacket connected to the cylinder block water jacket 21.

[0043] In one embodiment, if Figure 5 and Figure 6 As shown, the cylinder head 3 is provided with a cylinder head water jacket connected to the cylinder body water jacket 21 away from the water inlet 22;

[0044] The engine further comprises a water pump 4 and an oil cooler 5 mounted on the cylinder block 2. The cylinder block 2 is also provided with a cooling channel for cooling the oil cooler 5; an oil cooler inlet 24 of the cooling channel is connected to an end of the cylinder head water jacket away from the cylinder block water jacket 21, and an oil cooler outlet 25 of the cooling channel is connected to the water outlet 23;

[0045] The outlet of the water pump 4 is connected to the water inlet 22, and the inlet of the water pump 4 is connected to the water outlet 23. It can be understood that the water pump 4 can pump the coolant into the cylinder water jacket 21 through the water inlet 22, and the coolant in the cylinder water jacket 21 can flow back to the water pump 4 through the water outlet 23, thereby realizing the circulation of the coolant between the cylinder water jacket 21, the cylinder head water jacket and the water pump 4.

[0046] Specifically, the coolant flows from the bottom into the cylinder water jacket 21 on the intake side. Due to the blocking and guiding effect of the guide convex edge 12, a part of the coolant will flow into the cylinder water jacket 21 on the exhaust side of the cylinder 2 along the first guide surface 121 (first guide channel), the coolant on the exhaust side of the cylinder water jacket 21 will flow upward into the exhaust side of the cylinder head water jacket, the coolant on the intake side of the cylinder head water jacket will flow downward into the intake side of the cylinder water jacket 21, and the coolant on the intake side of the cylinder water jacket 21 will flow along the second guide surface 122 (second guide channel) to the water outlet 23 of the engine cylinder 2; a part of the coolant will flow into the oil cooler 5 along the third guide surface 123 (third guide channel), and this part of the coolant will flow into the cylinder water jacket 21 after cooling the oil cooler 5, and finally flow out through the water outlet 23 of the cylinder 2. In this embodiment, the design of the first guide surface 121 , the second guide surface 122 and the third guide surface 123 further improves the cooling efficiency of the engine water jacket baffle 1 on the engine cylinder block 2 .

[0047] In one embodiment, if Figure 4 As shown, the engine also includes a rear end partition 6 installed in the cylinder water jacket 21, and the rear end partition 6 is used to separate the cylinder water jacket 21 into an intake side water jacket and an exhaust side water jacket; it can be understood that the water inlet 22 and the water outlet 23 are both connected to the intake side water jacket.

[0048] The partition body 11 is installed in the intake side water jacket, and the first guide surface 121 is used to guide the coolant in the intake side water jacket to the exhaust side water jacket. It can be understood that the engine water jacket partition 1 is installed on the side of the cylinder water jacket 21 close to the water inlet 22, and the rear end partition 6 is installed on the side of the cylinder water jacket 21 close to the water outlet 23.

[0049] Specifically, the coolant flows into the intake side water jacket from the bottom. Due to the blocking and guiding effect of the guide convex edge 12, a part of the coolant will flow into the exhaust side water jacket along the first guide surface 121 (first guide channel). Due to the blocking effect of the rear end baffle 6 (the rear end baffle 6 can block the coolant in the exhaust side water jacket from directly flowing back to the intake side water jacket), the coolant in the exhaust side water jacket will flow upward into the exhaust side of the cylinder head water jacket, and the coolant on the intake side of the cylinder head water jacket will flow downward into the intake side water jacket. The coolant in the intake side water jacket will flow along the second guide surface 122 (second guide channel) to the water outlet 23 of the engine cylinder block 2; a part of the coolant will flow into the oil cooler 5 along the third guide surface 123 (third guide channel). After cooling the oil cooler 5, this part of the coolant will flow into the intake side water jacket, and finally flow out through the water outlet 23 of the cylinder block 2. In this embodiment, the rear end baffle 6 can block the coolant in the exhaust side water jacket from directly flowing back to the intake side water jacket, and instead flow upward into the cylinder head water jacket, further improving the cooling efficiency of the engine water jacket baffle 1 and the rear end water jacket 6 on the engine cylinder block 2.

[0050] The third embodiment of the utility model further provides a vehicle, comprising the above-mentioned engine.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An engine water jacket baffle, characterized in that: It comprises a baffle body installed in a cylinder water jacket of an engine, and a guide convex edge protruding from the baffle body; the guide convex edge abuts against the inner side wall of the cylinder water jacket on a side away from the baffle body; A first guide surface is provided on the guide convex edge; the first guide surface is arranged on the side of the guide convex edge facing the water inlet of the engine cylinder block; a first guide channel for guiding the coolant entering the water inlet to the exhaust side of the engine cylinder block is formed between the partition body, the first guide surface and the inner wall of the cylinder water jacket.

2. The engine water jacket baffle according to claim 1, characterized in that: A second guide surface is also provided on the guide convex edge; the second guide surface is arranged on the side of the guide convex edge away from the water inlet of the cylinder water jacket; a second guide channel for guiding the coolant returning from the exhaust side of the engine cylinder body to the water outlet of the engine cylinder body is formed between the partition body, the second guide surface and the inner side wall of the cylinder water jacket.

3. The engine water jacket baffle according to claim 1, characterized in that: A third flow guiding surface is provided on the flow guiding convex edge; the third flow guiding surface is arranged on the side of the flow guiding convex edge facing the water inlet of the cylinder water jacket; a third flow guiding channel is formed between the partition body, the third flow guiding surface and the inner side wall of the cylinder water jacket; the third flow guiding channel is connected to the first flow guiding channel; The third guide channel is used to guide the coolant entering from the water inlet to the oil cooler on the engine cylinder block.

4. The engine water jacket baffle according to claim 1, characterized in that: The partition body includes a bending plate inserted at the connection between two adjacent cylinder water jackets, and a first arc plate and a second arc plate respectively inserted in the two adjacent cylinder water jackets, the first arc plate, the bending plate and the second arc plate are connected in sequence, and the guide convex edge is arranged on the first arc plate, the bending plate and the second arc plate.

5. The engine water jacket baffle according to claim 1, characterized in that: The flow guide ridges are disposed on two opposite sides of the partition body.

6. The engine water jacket baffle according to claim 1, characterized in that: The guide ridge is arranged on the side of the partition body facing the water inlet; the side of the partition body away from the water inlet is also provided with a positioning ridge for abutting against the engine cylinder block to limit the installation position of the partition body.

7. The engine water jacket baffle according to claim 6, characterized in that: The guide ridge is arranged at the bottom of the partition body; the positioning ridge is arranged at the top of the partition body and is flush with the top surface of the engine cylinder block.

8. An engine, characterized in that: It comprises a cylinder block, a cylinder head and an engine water jacket baffle as claimed in any one of claims 1 to 7, wherein the cylinder block is provided with a cylinder water jacket and a water inlet and a water outlet both connected to the cylinder water jacket, and the cylinder head is mounted on the cylinder block and used to cover the cylinder water jacket.

9. The engine according to claim 8, characterized in that The cylinder head is provided with a cylinder head water jacket communicating with the cylinder body water jacket at one end away from the water inlet; The engine further comprises a water pump and an oil cooler mounted on the cylinder block, and the cylinder block is further provided with a cooling channel for cooling the oil cooler; the oil cooler inlet of the cooling channel is connected to an end of the cylinder head water jacket away from the cylinder block water jacket, and the oil cooler outlet of the cooling channel is connected to the water outlet; The outlet of the water pump is connected to the water inlet, and the inlet of the water pump is connected to the water outlet.

10. The engine according to claim 8, characterized in that The engine further comprises a rear end partition plate installed in the cylinder water jacket, the rear end partition plate being used to separate the cylinder water jacket into an intake side water jacket and an exhaust side water jacket; The partition body is installed in the intake side water jacket, and the first guide surface is used to guide the coolant in the intake side water jacket to the exhaust side water jacket.

11. A vehicle, characterized in that: Comprising an engine as claimed in any one of claims 8 to 10.