Cooling system, engine and vehicle

Abstract

The utility model provides a cooling system, an engine and a vehicle. The cooling system comprises a cylinder body water jacket, a cylinder cover water jacket and a second flow dividing pipe. The cylinder body water jacket is provided with a plurality of cooling cavities, and the cooling cavities are arranged on the outer sides of a plurality of cylinder bodies of the engine in a sleeving mode in a one-to-one correspondence mode. The cylinder cover water jacket comprises a plurality of cooling units and a first flow dividing pipe. The multiple cooling units are arranged on the upper portions of the multiple cylinder bodies in a one-to-one correspondence mode, first cavities are formed in the sides, close to the cylinder bodies, of the cooling units, and the first cavities are suitable for cooling the upper surfaces of the cylinder bodies. The first flow dividing pipe is connected to the side wall, close to one side of the cylinder body, of the cooling unit, communicates with the first cavity of the cooling unit and is suitable for dividing the cooling liquid into the first cavity. The second flow dividing pipe is connected to the outer wall of the cylinder body water jacket, communicates with the cylinder cover water jacket and the cylinder body water jacket and is suitable for dividing external cooling liquid to the cylinder body water jacket and the cylinder cover water jacket.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, and in particular to a cooling system, an engine and a vehicle. Background Art

[0002] In recent years, with the rapid development of the automotive industry, engine enhancement and thermal efficiency have continued to increase, along with specific torque and explosion pressure. While this technological advancement has significantly improved engine performance, it has also placed more stringent requirements on the engine's cooling system.

[0003] In multi-cylinder engines, coolant distribution often presents a significant challenge due to the complex structure and varying operating conditions of each cylinder. Traditional cooling systems may not ensure even and efficient distribution of coolant to all parts of the engine, often resulting in uneven cooling. Utility Model Content

[0004] In view of this, the present invention provides a cooling system, an engine and a vehicle.

[0005] One aspect of the present invention provides a cooling system, comprising: a cylinder water jacket having a plurality of cooling cavities, which are respectively and one-to-one arranged on the outer sides of a plurality of cylinders of an engine; a cylinder head water jacket, comprising: a plurality of cooling units, which are respectively and one-to-one arranged on the upper parts of the plurality of cylinders, a first cavity being formed on a side of the cooling unit close to the cylinder, the first cavity being suitable for cooling the upper surface of the cylinder; a first diverter pipe being connected to a side wall of the cooling unit close to the cylinder and communicating with the first cavity of the cooling unit, and being suitable for diverting coolant into the first cavity; a second diverter pipe being connected to an outer wall of the cylinder water jacket, and communicating with the cylinder head water jacket and the cylinder water jacket respectively, and being suitable for diverting external coolant into the cylinder water jacket and the cylinder head water jacket.

[0006] According to an embodiment of the present invention, a second cavity is further formed on a side of the cooling unit away from the cylinder body. The second cavity is communicated with the first cavity, and the second cavity is suitable for cooling the exhaust duct.

[0007] According to an embodiment of the present invention, a partition is provided between the first cavity and the second cavity, and a water passage is provided on the partition.

[0008] According to an embodiment of the present invention, the partition is a curved partition.

[0009] According to an embodiment of the present invention, the bottom surface of the first cavity and the sidewall of the first cavity are configured to have a curved surface structure with protrusions and depressions, so as to cooperate with the partition to form a wavy drainage channel.

[0010] According to an embodiment of the present invention, the cylinder head water jacket also includes a water collecting pipe, which is connected to the outer wall of the cooling unit away from the cylinder body and communicates with the second cavity of the cooling unit to collect the coolant in the second cavity and flow out of the cylinder head water jacket.

[0011] According to an embodiment of the present invention, a nose bridge cooling channel is formed along the nose bridge area of ​​the engine of the cooling unit, and the nose bridge cooling channel is connected to the first shunt pipe to cool the nose bridge area.

[0012] According to an embodiment of the present invention, a cooling channel is provided between two adjacent cooling chambers of the cylinder water jacket to cool the two facing surfaces of the two adjacent cylinders.

[0013] Another aspect of the present invention provides an engine, comprising the above-mentioned cooling system.

[0014] Another aspect of the present invention provides a vehicle comprising the above-mentioned engine.

[0015] According to the cooling system provided by the present invention, the coolant is diverted to the cylinder water jacket and the cylinder head water jacket through the second diverter pipe, and then the coolant is diverted to the first cavity of each cooling unit through the first diverter pipe. The flow direction and flow rate of the coolant can be accurately controlled to ensure that the coolant can be evenly and effectively distributed to the various cavities of the cylinder water jacket and the cylinder head water jacket, thereby improving the cooling efficiency and uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0017] Figure 1 The schematic diagram of the cooling system according to the embodiment of the present invention is shown;

[0018] Figure 2 Schematically shows the internal structure of a cooling unit according to an embodiment of the present utility model;

[0019] Figure 3 The figure schematically shows a side view of the exhaust side of the cylinder head water jacket according to an embodiment of the present invention.

[0020] Figure 4 The figure schematically shows a side view of the intake side of the cylinder head water jacket 2 according to an embodiment of the present invention.

[0021] Reference numerals

[0022] 1. Cylinder water jacket;

[0023] 11. Cooling chamber;

[0024] 2. Cylinder head water jacket;

[0025] 21. Cooling unit;

[0026] 211, first cavity;

[0027] 212, second cavity;

[0028] 213, partition;

[0029] 22. First shunt pipe;

[0030] 23. Water collecting pipe;

[0031] 24. The third cavity;

[0032] 25. Circulating water pipe;

[0033] 3. The second shunt pipe. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0035] The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. The terms "comprise", "include", etc. used herein indicate the presence of features, steps, operations and / or components, but do not exclude the presence or addition of one or more other features, steps, operations or components.

[0036] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0037] When expressions such as “at least one of A, B, and C, etc.” are used, they should generally be interpreted in accordance with the meaning commonly understood by those skilled in the art. For example, “a system having at least one of A, B, and C” should include but is not limited to systems having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, and C, etc. When expressions such as “at least one of A, B, or C, etc.” are used, they should generally be interpreted in accordance with the meaning commonly understood by those skilled in the art. For example, “a system having at least one of A, B, or C” should include but is not limited to systems having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, and C, etc.

[0038] Figure 1The schematic diagram shows a principle diagram of a cooling system according to an embodiment of the present utility model.

[0039] One aspect of the present invention provides a cooling system, such as Figure 1 As shown, it includes a cylinder water jacket 1, a cylinder head water jacket 2, and a second diverter pipe 3. The cylinder water jacket 1 has multiple cooling cavities 11, which are respectively arranged on the outside of the multiple cylinders of the engine. The cylinder head water jacket 2 includes multiple cooling units 21 and a first diverter pipe 22. The multiple cooling units 21 are respectively arranged on the upper part of the multiple cylinders. The side of the cooling unit 21 near the cylinder has a first cavity 211 formed therein. The first cavity 211 is suitable for cooling the upper surface (i.e., the firing surface) of the cylinder. The first diverter pipe 22 is connected to the side wall of the cooling unit 21 near the cylinder and communicates with the first cavity 211 of the cooling unit 21, and is suitable for diverting coolant into the first cavity 211. The second diverter pipe 3 is connected to the outer wall of the cylinder water jacket 1 and is respectively connected to the cylinder head water jacket 2 and the cylinder water jacket 1, and is suitable for diverting external coolant into the cylinder water jacket 1 and the cylinder head water jacket 2.

[0040] According to the cooling system provided by the present invention, the coolant is diverted to the cylinder water jacket 1 and the cylinder head water jacket 2 through the second diverter pipe 3, and then the coolant is diverted to the first cavity 211 of each cooling unit 21 through the first diverter pipe 22. The flow direction and flow rate of the coolant can be accurately controlled to ensure that the coolant can be evenly and effectively distributed to the various cavities of the cylinder water jacket 1 and the cylinder head water jacket 2, thereby improving the efficiency and uniformity of engine cooling.

[0041] In some embodiments, multiple cooling chambers 11 are arranged linearly within the cylinder water jacket 1. Each cooling chamber 11 is enclosed by two semi-arc-shaped partitions 213, located adjacent to the outside of the cylinder block. A gasket, sealing ring, or sealant is placed between the cylinder head water jacket 2 and the cylinder water jacket 1 to prevent coolant leakage.

[0042] In some embodiments, a cooling channel is provided between two adjacent cooling chambers 11 of the cylinder water jacket 1 to cool the two facing surfaces of the two adjacent cylinders.

[0043] In some embodiments, the cylinder water jacket 1 is provided with a water inlet and a water outlet. The water inlet is provided at one end of the cylinder water jacket 1 and is connected to the second diversion pipe 3. The water outlet is provided at the other end opposite to the one end. The coolant flows in each cooling cavity 11 of the cylinder water jacket 1 and flows out of the cylinder water jacket 1 from the water outlet after completing the cooling of the cylinder body.

[0044] In some embodiments, the length of the first diversion pipe 22 can match the total length of the multiple cooling units 21, the first diversion pipe 22 can be provided with a water inlet and multiple water outlets, the first cavity 211 is provided with a water inlet, and the multiple water outlets of the first diversion pipe 22 are respectively connected to the water inlets of the multiple first cavities 211 to divert the cooling liquid in the first diversion pipe 22 to each first cavity 211.

[0045] In some embodiments, the second diversion pipe 3 can be provided with a water inlet and two water outlets, one of the water outlets being connected to the water inlet of the first diversion pipe 22, and the other water outlet being connected to the water inlet of the cylinder water jacket 1. The water inlet of the second diversion pipe 3 can be connected to an external water tank to divert the coolant in the external water tank to the second diversion pipe 3 and the cylinder water jacket 1.

[0046] Figure 2 The internal structure of the cooling unit according to the embodiment of the present invention is schematically shown.

[0047] According to the embodiment of the present utility model, Figure 2 As shown, a second cavity 212 is formed on a side of the cooling unit 21 away from the cylinder body. The second cavity 212 is connected to the first cavity 211 and is suitable for cooling the exhaust duct.

[0048] In some embodiments, the bottom surface of the first cavity 211 is tightly fitted with the upper surface of the cylinder body, the second cavity 212 is located above the first cavity 211 , and the accommodation space of the first cavity 211 can be configured to be smaller than the accommodation space of the second cavity 212 .

[0049] In such an embodiment, a double-layer water jacket structure is formed by the first cavity and the second cavity to cool the upper surface of the cylinder and the exhaust pipe respectively, thereby enhancing the cooling effect.

[0050] According to the embodiment of the present utility model, Figure 2 As shown, a partition 213 is provided between the first cavity 211 and the second cavity 212 , and a water passage is provided on the partition 213 .

[0051] In some embodiments, the coolant can flow from the first diversion pipe 22 to the first cavity 211 to cool the upper surface of the cylinder body. Then, the coolant flows from the first cavity 211 through the water channel to the second cavity 212 to cool the exhaust duct in a longitudinal flow form.

[0052] According to the embodiment of the present utility model, Figure 2 As shown, the partition 213 can be a curved partition.

[0053] In some embodiments, two partitions 213 may be symmetrically arranged, one end of the two partitions 213 may be connected to the inner walls of the first cavity 211 and the second cavity 212 and extend toward the middle, and a certain distance may be spaced between the two partitions 213 to form a water passage.

[0054] In some embodiments, as Figure 2 As shown, the partition 213 may be bent upward when extending toward the middle, thereby forming a curved partition 213. The present disclosure is not limited thereto, and the partition 213 may also be bent upward.

[0055] In such an embodiment, the curved partition can reduce the resistance of the fluid when passing through the partition, thereby improving the flow efficiency of the fluid.

[0056] According to the embodiment of the present utility model, Figure 2 As shown, the bottom surface of the first cavity 211 and the sidewall of the first cavity 211 are configured to have a curved surface structure with protrusions and depressions, so as to cooperate with the partition 213 to form a wavy drainage channel.

[0057] In some embodiments, the area near the exhaust duct can be set as a concave structure. Since the area near the exhaust duct is directly washed by high-temperature combustion gas and has a high heat load, the thickness can be reduced and the cooling effect can be enhanced by setting the concave.

[0058] In some embodiments, the nose bridge area between the intake and exhaust ducts can be designed as a raised structure. Because the nose bridge is susceptible to fracture due to the impact of high-temperature, high-pressure gas, this raised structure increases thickness, improving structural strength and resisting thermal and mechanical stresses.

[0059] In such an embodiment, the wavy drainage channel allows the cooling liquid to increase the cooling of the key area while also increasing the strength of the weak area when passing through the first cavity 211 .

[0060] Figure 3 The figure schematically shows a side view of the exhaust side of the cylinder head water jacket according to an embodiment of the present invention.

[0061] According to an embodiment of the present invention, a nose bridge cooling channel is formed along the nose bridge area of ​​the engine in the cooling unit 21. The nose bridge cooling channel is connected to the first diverter pipe 22 to cool the nose bridge area.

[0062] In some embodiments, the cooling channel of the nose bridge area can be connected to the first cavity 211 and the second cavity 212 through the water through hole of the first partition 213.

[0063] In such an embodiment, the coolant can flow into the first cavity 211 and the nose bridge area cooling channel simultaneously through the first diverter pipe 22 to cool the upper surface of the cylinder body and the nose bridge area, effectively solving the problem of uneven cooling of the fire surface at the bottom of the cylinder head and the nose bridge area.

[0064] Figure 4 The figure schematically shows a side view of the intake side of the cylinder head water jacket 2 according to an embodiment of the present invention.

[0065] In some embodiments, as Figure 4 As shown, a third cavity 24 is also formed at one end of the cooling unit 21 close to the air intake side. A water channel can be set between the third cavity 24 and the first cavity 211. A portion of the coolant can flow from the first cavity 211 through the water channel to the third cavity 24, thereby cooling the air intake pipe.

[0066] According to the embodiment of the present utility model, Figure 3 and Figure 4 As shown, the cylinder head water jacket 2 also includes a water collecting pipe 23, which is connected to the outer wall of the cooling unit 21 away from the cylinder body and is connected to the second cavity 212 of the cooling unit 21 to collect the coolant in the second cavity 212 and flow out of the cylinder head water jacket 2.

[0067] Specifically, such as Figure 3 As shown, the water collecting pipe 23 can be arranged at the top of the cylinder head water jacket 2 and can be arranged parallel to the first diverter pipe 22. The water collecting pipe 23 can be provided with multiple water inlets, and the multiple water inlets are respectively connected to the second cavities 212 of the multiple cooling units 21. The coolant flowing out of the second cavity 212 can be collected in the water collecting pipe 23 and flow out of the cylinder head water jacket 2.

[0068] In some embodiments, the cylinder head water jacket 2 also includes a circulating water pipe 25, which can be set on the outer wall of the outermost cooling unit 21. The circulating water pipe 25 can be connected to the water collecting pipe 23 and the third cavity 24 respectively, and return part of the coolant in the water collecting pipe 23 to the third cavity 24.

[0069] In some embodiments, a warm air water inlet is also provided on the water collecting pipe 23, and an external warm air component is connected to one end of the water collecting pipe 23. An opening is provided at one end of the first diversion pipe 22 and connected to the warm air component as a warm air return port. The warm air return port and the warm air water inlet are connected through a return water main pipe, and internal coolant circulation is realized through the external warm air component.

[0070] In some embodiments, the first cavity 211 may also be connected to a supercharger, so that a portion of the coolant flows out through the supercharger and returns to the first diversion pipe 22 through the return main pipe.

[0071] In some embodiments, coolant flows as follows: Coolant flows from an external water tank via a water pump into the second manifold 3, which then diverts the coolant to the first manifold 22 and the cylinder water jacket 1. Coolant flowing into the first manifold 22 is diverted into the first chamber 211, supplying water to the upper surface and nose bridge of the cylinder head, effectively cooling the firing surface and nose bridge of the cylinder head. The coolant then flows along the water passages of the baffle 213 to the second chamber 212. A portion of the coolant in the first chamber 211 flows horizontally into the third chamber 24 to cool the intake manifold, while a portion flows out of the supercharger. Coolant entering the second chamber 212 flows longitudinally to cool the exhaust duct, then partially flows horizontally into the third chamber 24 and partially flows out of the manifold 23, where it is taken by the heater assembly and then merged with the coolant in the first chamber 211 that has flowed through the supercharger into the return water main. Finally, the coolant flows back to the first diversion pipe 22 to complete the cycle. The coolant flowing into the cylinder water jacket 1 cools the cylinder along the cooling cavity 11 and the cooling channel and flows out from the water outlet.

[0072] According to an embodiment of the present invention, an engine is also provided, which may include the cooling system described in the embodiment of the present invention.

[0073] According to the embodiment of the present invention, the engine body and the cylinder head can be evenly cooled by the above-mentioned cooling system, local area overheating is less likely to occur, and the performance of the engine is improved.

[0074] According to an embodiment of the present invention, a vehicle is also provided, which may include the engine described in the embodiment of the present disclosure.

[0075] It should also be noted that directional terms such as "upper," "lower," "front," "back," "left," and "right" mentioned in the embodiments are merely references to the drawings and are not intended to limit the scope of protection of the present invention. Throughout the drawings, identical elements are represented by identical or similar reference numerals. Conventional structures or configurations will be omitted where they may cause confusion in understanding the present invention.

[0076] The above describes embodiments of the present invention. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although each embodiment has been described separately above, this does not mean that the measures in each embodiment cannot be used in combination to advantage. The scope of the present invention is defined by the appended claims and their equivalents. Without departing from the scope of the present invention, those skilled in the art may make various substitutions and modifications, which should all fall within the scope of the present invention.

Claims

1. A cooling system, characterized in that: include: A cylinder water jacket (1) has a plurality of cooling cavities (11), wherein the plurality of cooling cavities (11) are respectively and one-to-one sleeved on the outsides of the plurality of cylinders of the engine; Cylinder head water jacket (2), including: A plurality of cooling units (21), wherein the plurality of cooling units (21) are respectively arranged on the upper parts of the plurality of cylinders in a one-to-one correspondence, and a first cavity (211) is formed on a side of the cooling unit (21) close to the cylinder, and the first cavity (211) is suitable for cooling the upper surface of the cylinder; a first diversion pipe (22), connected to a side wall of the cooling unit (21) close to the cylinder body and communicating with the first cavity (211) of the cooling unit (21), and adapted to divert the cooling liquid into the first cavity (211); A second shunt pipe (3) is connected to the outer wall of the cylinder water jacket (1) and is in communication with the cylinder head water jacket (2) and the cylinder water jacket (1) respectively, and is suitable for shunting external coolant to the cylinder water jacket (1) and the cylinder head water jacket (2).

2. The system according to claim 1, wherein: A second cavity (212) is further formed on a side of the cooling unit (21) away from the cylinder body. The second cavity (212) is connected to the first cavity (211), and the second cavity (212) is suitable for cooling the exhaust duct.

3. The system according to claim 2, characterized in that A partition (213) is provided between the first cavity (211) and the second cavity (212), and a water passage is provided on the partition (213).

4. The system according to claim 3, characterized in that The partition (213) is a curved partition.

5. The system according to claim 4, characterized in that The bottom surface of the first cavity (211) and the side wall of the first cavity (211) are configured to have a curved surface structure with convexities and concavities, so as to cooperate with the partition (213) to form a wavy drainage channel.

6. The system according to claim 2, wherein: The cylinder head water jacket (2) further comprises a water collecting pipe (23), which is connected to the outer wall of the cooling unit (21) on the side away from the cylinder body and is in communication with the second cavity (212) of the cooling unit (21) so as to collect the coolant in the second cavity (212) and flow it out of the cylinder head water jacket (2).

7. The system according to any one of claims 1 to 6, characterized in that: The cooling unit (21) is also provided with a nose bridge cooling channel along the nose bridge area of ​​the engine, and the nose bridge cooling channel is connected to the first diverter pipe to cool the nose bridge area.

8. The system according to any one of claims 1 to 6, characterized in that: A cooling channel is provided between two adjacent cooling chambers (11) of the cylinder water jacket (1) to cool two facing surfaces of the two adjacent cylinders.

9. An engine, characterized in that: A cooling system comprising the cooling system according to any one of claims 1 to 8.

10. A vehicle, characterized in that: Including the engine described in claim 9.

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