Engine oil cooler module of engine and engine

Abstract

The invention relates to the field of engines, and provides an engine and an engine oil cooler module thereof.The engine oil cooler module comprises a cooling water shell provided with a cooling water pipeline, an engine oil shell provided with an engine oil pipeline, an engine oil cooler communicating with the engine oil pipeline and a pressure pump arranged on the cooling water shell; the cooling water shell and the engine oil shell are connected with each other to define a cooling cavity for containing the engine oil cooler, the cooling water pipe, the pressure pump and the cooling cavity can be communicated with the engine cylinder body to form a circulating water path of the engine, and the engine oil cooler and the engine oil pipeline can be communicated with the engine cylinder body to form a circulating oil path of the engine. According to the technical scheme, the cooling water shell, the engine oil shell, the pressure pump and the engine oil cooler are integrated together, so that the whole engine is more compact, the integration degree is improved, the occupied space is reduced, disassembly, assembly and maintenance are convenient, and the maintenance cost is reduced.

Description

Technical Field

[0001] This disclosure relates to the technical field of engines, and more particularly to an engine oil cooler module, and to an engine. Background Technology

[0002] Water pumps and oil coolers are important components of the engine cooling system. They are the main control components for engine water and oil temperatures. The water pump is the only power source for providing coolant to the engine, while the oil cooler cools the engine oil through the coolant. The combination of water pumps and oil coolers ensures that the engine operates at a suitable temperature, avoiding problems such as poor engine performance and energy waste caused by overheating or overcooling.

[0003] Currently, most engines have their water pumps with the pump housing integrated into the cylinder block, and the water pump is bolted to the cylinder block. The oil cooler and oil filter are usually integrated into a single assembly and installed on the engine block. When the water pump, oil cooler, or filter fails or needs to be replaced, the large size of the cylinder block parts makes disassembly and installation inconvenient, resulting in high repair and replacement costs. Summary of the Invention

[0004] One of the technical problems that this disclosure aims to solve is: reducing the cost of oil cooling modules.

[0005] To solve the above-mentioned technical problems, this disclosure provides an engine oil cooler module, characterized in that it includes a cooling water housing with cooling water pipes, an oil housing with oil pipes, an oil cooler connected to the oil pipes, and a pressure pump disposed on the cooling water housing. The cooling water housing and the oil housing are joined together to form a cooling cavity accommodating the oil cooler. The cooling water pipes, the pressure pump, and the cooling cavity are connected to the engine block to form the engine's circulating water circuit. The oil cooler and the oil pipes are connected to the engine block to form the engine's circulating oil circuit.

[0006] In some embodiments, the cooling water pipe includes a first water pipe connecting the engine block and the pressure pump, a second water pipe connecting the pressure pump and the cooling chamber, and a third water pipe connecting the cooling chamber and the engine block.

[0007] In some embodiments, the first water pipe includes a straight section located downstream.

[0008] In some embodiments, the cooling water housing is provided with a recess surrounding the straight pipe section, and the pressure pump includes an impeller that is partially housed in the recess.

[0009] In some embodiments, the cooling water housing and the oil housing are joined to each other along a first direction, the oil cooler includes a plurality of fins stacked along the first direction, the circulating water path is configured to form a cooling water flow in the cooling cavity along a second direction perpendicular to the first direction, the cooling water housing is provided with a first guide rib and a second guide rib located upstream of the oil cooler, the distance between the first guide rib and the second guide rib in a third direction gradually decreases along the cooling water flow direction to guide the cooling water flow into the space between the stacked fins, the third direction being perpendicular to the first direction and the second direction.

[0010] In some embodiments, the cooling water housing is provided with a plurality of baffles extending along the third direction, the plurality of baffles being spaced apart from the oil cooler along the first direction, and the plurality of baffles being spaced apart along the second direction to form a baffle between the oil cooler and the cooling water housing.

[0011] In some embodiments, the oil housing is provided with a filter connector and a bypass valve provided on the filter connector, the bypass valve being connected to the engine block.

[0012] In some embodiments, the oil housing is provided with a thermostat that communicates with the oil line and is located upstream of the oil cooler, and the thermostat is connected to the engine block.

[0013] In some embodiments, the cooling water housing is provided with a plurality of cooling accessory inlets, a plurality of cooling accessory return inlets, and an engine small circulation return inlet.

[0014] In addition, embodiments of this disclosure also provide an engine, wherein the engine includes an engine block and an oil cooler module of the engine described above.

[0015] The above technical solution integrates the cooling water housing, oil housing, pressure pump, and oil cooler, making the engine more compact, improving integration, reducing space occupation, facilitating disassembly and maintenance, and reducing maintenance costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of the engine oil cooler module disclosed in this embodiment;

[0018] Figure 2 This is a cross-sectional view of the cooling water casing disclosed in this embodiment;

[0019] Figure 3 This is a schematic diagram of the structure of the cooling water shell disclosed in this embodiment;

[0020] Figure 4 This is a schematic diagram of the structure of the cooling water housing and the oil cooler disclosed in the embodiments of this disclosure;

[0021] Figure 5 This is a cross-sectional view of the engine oil cooler module disclosed in this embodiment;

[0022] Figure 6 This is a cross-sectional view of the engine oil cooler module disclosed in this embodiment at the pressure pump.

[0023] Figure 7 This is a schematic diagram of the structure of the oil casing disclosed in this embodiment.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1-Cooling water housing, 2-Oil housing, 3-Pressure pump, 4-Oil cooler, 5-Sealing ring, 6-Filter connector, 7-Bypass valve, 8-Thermostat, 9-First water pipe, 10-Second water pipe, 11-Third water pipe, 12-Engine small circulation return port, 13-Cooling accessory inlet, 14-Cooling accessory return port, 15-First guide rib, 16-Second guide rib, 17-Baffle rib, 18-Impeller, 19-First interface, 20-Second interface, 21-Third interface, 22-Fourth interface, 23-Fifth interface, 24-Sixth interface, 25-First oil passage, 26-Second oil passage, 27-Third oil passage. Detailed Implementation

[0026] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0027] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0028] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0030] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0031] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0032] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0033] refer to Figures 1-7As shown, this solution provides an engine oil cooler module, which includes a cooling water housing 1 with cooling water pipes, an oil housing 2 with oil pipes, an oil cooler 4 connected to the oil pipes, and a pressure pump mounted on the cooling water housing 1. The cooling water housing 1 and the oil housing 2 are joined together to form a cooling cavity that accommodates the oil cooler 4. The cooling water pipes, the pressure pump, and the cooling cavity can be connected to the engine block to form the engine's circulating water circuit, and the oil cooler 4 and the oil pipes can be connected to the engine block to form the engine's circulating oil circuit.

[0034] The coolant housing 1 and the oil housing 2 can be joined together to form a cooling cavity to house the oil cooler 4, allowing the oil cooler 4 to be immersed in coolant. A sealing ring 5 can be provided between the coolant housing 1 and the oil housing 2 to improve the sealing performance between them.

[0035] Coolant from the engine block enters the pressure pump 3 through the coolant pipe. The pressure pump 3 pressurizes the coolant and delivers it to the cooling chamber through the coolant pipe to cool the oil cooler 4, thus cooling the oil within. Subsequently, the coolant in the cooling chamber returns to the engine block through the coolant pipe. It can be seen that the coolant housing 1, the pressure pump 3, the cooling chamber, and the engine block (cooling pipes) constitute a circulating water circuit.

[0036] Engine oil from the engine block enters the oil pan 2 and then flows through the pipes in the oil pan 2 into the oil cooler 4 for cooling. It then returns to the engine block through the pipes in the oil pan 2. It can be seen that the oil pan 2, the oil cooler 4, and the engine block (oil pipes) form a circulating oil circuit.

[0037] The pressure pump 3 is installed on the cooling water housing 1, and the oil cooler 4 is installed between the oil housing 2 and the cooling water housing 1. The oil housing 2 and the cooling water housing 1 are also integrated together, which integrates the existing cooling water pipeline, pressure pump, oil pipeline and oil cooler together, improving the integration level, making the engine structure more compact, reducing the space occupied, and these components are independent of the engine block, which facilitates disassembly and maintenance and reduces maintenance costs.

[0038] In this design, the cooling water housing, oil housing, pressure pump, and oil cooler are integrated together, making the engine more compact, improving integration, reducing space occupation, facilitating disassembly and maintenance, and lowering maintenance costs.

[0039] In some embodiments, reference Figure 2As shown, the cooling water pipes include a first water pipe 9 connecting the engine block and the pressure pump 3, a second water pipe 10 connecting the pressure pump 3 and the cooling chamber, and a third water pipe 11 connecting the cooling chamber and the engine block. One end of the first water pipe 9 is connected to the engine block, and the other end is connected to the inlet of the pressure pump 3. One end of the second water pipe 10 is connected to the outlet of the pressure pump 3, and the other end is connected to the cooling chamber. One end of the third water pipe 11 is connected to the cooling chamber, and the other end is connected to the engine block, thereby forming a complete cooling water flow path in the cooling water housing 1. Figure 2 The middle arrow indicates the direction of cooling water flow.

[0040] Additionally, in some embodiments, the first water pipe 9 includes a straight section located downstream. (See reference...) Figure 5 As shown, the downstream straight section of the first water pipe 9 is the part directly connected to the pressure pump 3. Its straight shape reduces the flow resistance of the cooling water and lowers the risk of cavitation erosion in the pressure pump 3. The upstream section of the first water pipe 9 is curved, smoothly transitioning to the straight section to reduce flow resistance.

[0041] In some embodiments, the cooling water housing 1 is provided with a recess surrounding the straight pipe section, and the pressure pump 3 includes an impeller 18, which is partially housed in the recess. The pressure pump 3 may include a volute and an impeller 18 disposed within the volute. The impeller 18 protrudes partially from the volute and is housed in the cooling water housing 1, i.e., in the recess surrounding the first water pipe 9, to increase the compactness of the impeller 18 with the cooling water housing 1. The shape of the recess matches that of the impeller 18 (in the rotating state), and there is a small gap between the impeller 18 and the recess, for example, 0.8-1.0 mm. The pressure pump 3 may be a centrifugal pump. The central axis of the impeller 18 overlaps with the central axis of the straight pipe section of the first water pipe 9. Cooling water from the first water pipe 9 enters the central portion of the impeller 18 and flows around it. The volute and the periphery of the impeller 18 form a space through which the cooling water further flows to the inlet of the second water pipe 10. Figure 6 As shown, the inlet of the second water pipe 10 transitions smoothly with the volute, reducing flow resistance and lowering the risk of cavitation.

[0042] In some embodiments, the cooling water housing 1 and the oil housing 2 are joined together along a first direction. The oil cooler 4 includes a plurality of fins stacked along the first direction. The circulating water path is configured to form a cooling water flow in the cooling chamber along a second direction perpendicular to the first direction. The cooling water housing 1 is provided with a first guide rib 15 and a second guide rib 16 located upstream of the oil cooler 4. The distance between the first guide rib 15 and the second guide rib 16 in a third direction gradually decreases along the cooling water flow direction to guide the cooling water flow into the space between the stacked fins. The third direction is perpendicular to both the first and second directions. (Reference) Figure 4 As shown, the direction of the arrow is the second direction, perpendicular to... Figure 4 The orientation of the paper plane is the first direction. The cooling water flow in the cooling cavity along the second direction refers to the overall trend of the cooling water pipes along the second direction; however, this does not preclude the cooling water from flowing in other directions as well. The cooling water flows along the second direction toward the oil cooler 4 and passes through the gaps between the fins, thereby achieving heat exchange with the fins. (Reference) Figure 3 and Figure 4 As shown, the first guide rib 15 and the second guide rib 16 extend approximately along the second direction, and the distance between them gradually decreases along the third direction, thereby guiding the cooling water flow to the oil cooler 4 to reduce or avoid cooling water flowing towards the upper and lower sides of the oil cooler 4 (see reference). Figure 4 (Relative position in the flow)

[0043] In some embodiments, the cooling water housing 1 is provided with a plurality of baffles 17 extending along the third direction. The plurality of baffles 17 are spaced apart from the oil cooler 4 along the first direction, and are arranged at intervals along the second direction to form a baffle between the oil cooler 4 and the cooling water housing 1. (Reference) Figure 3 As shown, the baffle 17 extends along a third direction. When cooling water flowing in the second direction reaches the baffle 17, it can form a deflection under its guidance. The baffle 17 is spaced from the oil cooler 4 to allow cooling water to flow between them. In this structure, the cooling water can flow directly between the baffle 17 and the oil cooler 4 in the second direction, and also undergoes a partial deflection under the guidance of the baffle 17. This allows the cooling water to pass through quickly while also ensuring a certain degree of extension of the cooling water flow path, thus improving the heat exchange effect.

[0044] In some embodiments, the oil housing 2 is provided with a filter connector 6 and a bypass valve 7 disposed on the filter connector 6. The bypass valve 7 is connected to the engine block. An oil filter can be installed on the filter connector 6, and the oil lines in the oil housing 2 can be connected to the oil filter to filter the oil. The filtered oil returns to the oil housing 2 and is then delivered to the engine block. The bypass valve 7 can be located on the oil line upstream of the filter connector 6. When the oil filter malfunctions, the oil can bypass the oil filter and return directly to the engine block through the bypass valve 7, thereby reducing the risk of engine seizure and other quality problems.

[0045] In some embodiments, the oil housing 2 is provided with a thermostat 8 that communicates with the oil lines and is located upstream of the oil cooler 4. The thermostat 8 is connected to the engine block. The thermostat 8 is connected to the oil lines in the oil housing 2. When the engine temperature is low, the thermostat 8 allows the oil in the oil lines to return directly to the engine block without passing through the oil cooler 4, thereby accelerating engine warm-up. When the oil temperature is high and cooling is required, the thermostat 8 allows the oil to flow through the oil cooler 4 for cooling.

[0046] refer to Figure 7 As shown, the arrows indicate the direction of oil flow. The first port 19 can be connected to the oil pump to introduce oil. The first port 19 is connected to the second port 20 through the first oil passage 25. The second port 20 can be connected to the inlet of the oil cooler 4. The third port 21 is connected to the outlet of the oil cooler 4. The third port 21 is connected to the filter connector 6 through the second oil passage 26. The filter connector 6 is connected to the fourth port 22 through the third oil passage 27. The fourth port 22 can be connected to the engine block. The sixth port 24 can accommodate a bypass valve 7. The bypass valve 7 can connect the second oil passage 26 and the third oil passage 27 so that the oil can directly reach the fourth port 22 without passing through the oil filter installed on the filter connector 6. When the filter fails, the bypass valve 7 can be opened so that the oil bypasses the filter connector 6 and the filter and is directly delivered to the engine block through the fourth port 22. A thermostat 8 can be installed at the fifth interface 23, so that the thermostat 8 can be connected to the first oil circuit 25.

[0047] In some embodiments, the cooling water housing 1 is provided with multiple cooling accessory inlets 13, multiple cooling accessory return inlets 14, and an engine small circulation return inlet 12, all connected to the cooling cavity. The cooling accessories can be SCR (Selective Catalytic Reduction), EGR (Exhaust Gas Recirculation), turbochargers, heaters, etc. The cooling accessory return inlets 14 and 13 communicate with the cooling accessories, forming a circulation pipeline to supply cooling water to them. The cooling accessory return inlets 14 and 13 can be used selectively; when not in use, they can be sealed with a sealing plug. The engine block contains a large cooling water circulation and a small cooling water circulation. The engine small circulation return inlet 12 communicates with the engine block's small cooling water circulation to deliver cooling water from the small circulation to the cooling cavity.

[0048] On the other hand, this solution provides an engine, wherein the engine includes an engine block and an oil cooler module of the engine described above.

[0049] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0050] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. An engine oil cooler module characterized by, The cooling water shell (1) provided with a cooling water pipeline, the oil shell (2) provided with an oil pipeline, the oil cooler (4) communicated with the oil pipeline, and the pressure pump arranged on the cooling water shell (1), the cooling water shell (1) and the oil shell (2) are engaged with each other to form a cooling cavity containing the oil cooler (4), the cooling water pipeline, the pressure pump and the cooling cavity can be communicated with the engine cylinder to form a circulating water path of the engine, and the oil cooler (4) and the oil pipeline can be communicated with the engine cylinder to form a circulating oil path of the engine.

2. The engine oil cooler module of claim 1, wherein, The cooling water pipeline comprises a first water pipeline (9) communicated with the engine cylinder and the pressure pump (3), a second water pipeline (10) communicated with the pressure pump (3) and the cooling cavity, and a third water pipeline (11) communicated with the cooling cavity and the engine cylinder.

3. The oil cooler module of claim 2, wherein, The first water pipeline (9) comprises a straight pipeline section located downstream.

4. The engine oil cooler module of claim 3, wherein, The cooling water shell (1) is provided with a recess around the straight pipeline section, and the pressure pump (3) comprises an impeller (18) partially accommodated in the recess.

5. The engine oil cooler module of claim 1, wherein, The cooling water shell (1) and the oil shell (2) are engaged with each other along a first direction, the oil cooler (4) comprises a plurality of fins stacked along the first direction, the circulating water path is arranged to form a cooling water flow in the cooling cavity along a second direction perpendicular to the first direction, the cooling water shell (1) is provided with a first flow guide rib (15) and a second flow guide rib (16) located upstream of the oil cooler (4), the distance between the first flow guide rib (15) and the second flow guide rib (16) in a third direction gradually decreases along the direction of the cooling water flow, so as to guide the cooling water flow into the stacked fins, and the third direction is perpendicular to the first direction and the second direction.

6. The oil cooler module of claim 5, wherein, The cooling water shell (1) is provided with a plurality of baffle ribs (17) extending along the third direction, the plurality of baffle ribs (17) are spaced apart from the oil cooler (4) along the first direction, and the plurality of baffle ribs (17) are arranged in a spaced-apart manner along the second direction to form a baffle between the oil cooler (4) and the cooling water shell (1).

7. The oil cooler module of claim 1, wherein, The oil shell (2) is provided with a filter connecting seat (6) and a bypass valve (7) arranged on the filter connecting seat (6), and the bypass valve (7) can be communicated with the engine cylinder.

8. The oil cooler module of claim 1, wherein, The oil shell (2) is provided with a thermostat (8) communicated with the oil pipeline and located upstream of the oil cooler (4), and the thermostat (8) can be communicated with the engine cylinder.

9. The oil cooler module of claim 1, wherein, The cooling water shell (1) is provided with a plurality of cooling accessory water inlets (13), a plurality of cooling accessory water outlets (14), and an engine small circulation water outlet (12).

10. An engine characterized by, The engine comprises an engine cylinder and an oil cooler module of the engine according to any one of claims 1-9.

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