Engine oil cooler and engine

Abstract

The utility model belongs to the technical field of engines, and particularly relates to an engine oil cooler and an engine. The engine oil cooler comprises a cooler body and a bypass plate, a heat exchange oil way is arranged in the cooler body, and the heat exchange oil way is communicated between an oil supply pipeline and an oil return pipeline; the bypass plate is connected to the cooler body and located between the cooler body and the engine oil filter, a bypass oil way is arranged on the bypass plate, the inlet end of the bypass oil way is communicated with the oil supply pipeline, the outlet end of the bypass oil way is communicated with the oil return pipeline, and the bypass oil way is connected with the heat exchange oil way in parallel. By means of the engine oil cooler in the technical scheme, the flow of engine oil entering the heat exchange oil way is reduced, so that the flowing resistance in the engine oil cooler is reduced, the engine oil can smoothly flow in the oil return pipeline and flow to an engine oil pump, and an engine has good power output performance and emission performance, high fuel efficiency and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of engines, and particularly relates to an oil cooler and an engine. Background Art

[0002] The oil cooler is an important part of the engine lubrication system, and its function is to cool the oil to ensure the normal operation of the moving pairs.

[0003] In the prior art, according to the design method of the internal pipeline of the oil cooler, all the oil needs to pass through the oil cooler. For the oil cooler with this structure, when the oil flow rate is too large, due to the limitation of the internal space of the oil cooler, the oil side resistance is large, the oil flow is blocked, resulting in an increase in oil pressure, and further resulting in a decrease in the volumetric efficiency of the oil pump. In this case, the oil cannot flow smoothly to the oil pump, thus affecting the performance of the engine.

[0004] Therefore, it is urgent to propose an oil cooler and an engine to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to at least solve the problem of excessive oil resistance inside the oil cooler. This purpose is achieved through the following technical solutions:

[0006] The first aspect of the utility model proposes an oil cooler, which is connected to an oil filter. The inside of the oil filter is provided with an oil supply pipeline and an oil return pipeline. The oil cooler includes:

[0007] A cooler main body, the inside of which is provided with a heat exchange oil circuit, and the heat exchange oil circuit is communicated between the oil supply pipeline and the oil return pipeline;

[0008] A bypass plate, which is connected to the cooler main body and is located between the cooler main body and the oil filter. The bypass plate is provided with a bypass oil circuit. The inlet end of the bypass oil circuit is communicated with the oil supply pipeline, the outlet end of the bypass oil circuit is communicated with the oil return pipeline, and the bypass oil circuit is in parallel with the heat exchange oil circuit.

[0009] The above-mentioned oil cooler realizes the diversion of oil by adding a bypass plate and arranging a bypass oil passage on the bypass plate. By arranging the bypass plate between the oil filter and the cooler body, after the oil flows out from the oil supply pipeline in the oil filter, part of it enters the bypass oil passage, and part of it enters the heat exchange oil passage inside the cooler body for cooling. The oil entering the bypass oil passage directly flows back to the oil return pipeline in the oil filter, and the oil in the heat exchange oil passage flows back to the oil return pipeline after heat exchange in the cooler body. Since part of the oil entering the oil cooler directly flows back from the bypass oil passage to the oil return pipeline, the oil flow rate in the heat exchange oil passage decreases, thereby reducing the flow resistance inside the oil cooler, and the oil can flow smoothly in the oil return pipeline and flow to the oil pump, enabling the engine to have good power output performance, emission performance, and high fuel efficiency, etc.

[0010] In addition, the oil cooler according to the present utility model may further have the following additional technical features:

[0011] In some embodiments of the present utility model, a heat exchange water passage is further arranged inside the cooler body. The heat exchange water passage and the heat exchange oil passage are isolated from each other. A bypass water passage is arranged on the bypass plate. The bypass water passage and the bypass oil passage are isolated from each other. The bypass water passage and the heat exchange water passage are communicated.

[0012] In some embodiments of the present utility model, an oil inlet, an oil outlet, a first communication groove, a water inlet, a water outlet, and a second communication groove are arranged on the bypass plate. The oil inlet and the oil outlet are communicated through the first communication groove to form the bypass oil passage. The water inlet and the water outlet are communicated through the second communication groove to form the bypass water passage.

[0013] In some embodiments of the present utility model, the first communication groove and the second communication groove are respectively arranged on two sides of the bypass plate. The bypass oil passage and the bypass water passage are arranged in parallel or staggered.

[0014] In some embodiments of the present utility model, the first communication groove and the second communication groove are arranged on the same side of the bypass plate.

[0015] In some embodiments of the present utility model, a first connecting portion is arranged on the bypass plate. The first connecting portion is used to connect with the oil filter.

[0016] In some embodiments of the present utility model, a mounting plate is connected to the side of the bypass plate facing away from the cooler body. Four through holes are arranged on the mounting plate. The four through holes are respectively communicated with the inlet end of the bypass oil passage, the outlet end of the bypass oil passage, the inlet end of the bypass water passage, and the outlet end of the bypass water passage. The mounting plate is used to communicate with the oil filter.

[0017] In some embodiments of the present utility model, a second connecting portion is provided on the mounting plate, and the second connecting portion is used to connect with the oil filter.

[0018] In some embodiments of the present utility model, a ring groove is provided on the outer circumference of each through hole, the notch of the ring groove faces away from the bypass plate, and a sealing ring is provided inside the ring groove.

[0019] A second aspect of the present utility model provides an engine, which includes an oil filter and the above-mentioned oil cooler, and the oil filter is connected with the oil cooler. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered as a limitation of the present utility model. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0021] Figure 1 Schematically shows an exploded view of an oil cooler according to an embodiment of the present utility model;

[0022] Figure 2 Schematically shows a structural diagram of a bypass plate according to an embodiment of the present utility model from a certain perspective;

[0023] Figure 3 Schematically shows a structural diagram of a bypass plate according to an embodiment of the present utility model from another perspective;

[0024] Figure 4 Schematically shows a structural diagram of another bypass plate according to an embodiment of the present utility model from a certain perspective;

[0025] Figure 5 Schematically shows a structural diagram of another bypass plate according to an embodiment of the present utility model from another perspective;

[0026] Figure 6 Schematically shows a structural diagram of yet another bypass plate according to an embodiment of the present utility model;

[0027] Figure 7 Schematically shows a structural diagram of the mounting plate according to an embodiment of the present utility model;

[0028] Figure 8 Schematically shows a structural diagram of the oil cooler according to an embodiment of the present utility model.

[0029] The reference numerals in the drawings are defined as follows:

[0030] 100, cooler body; 110, support plate; 200, bypass plate; 210, bypass oil passage; 211, oil inlet; 212, oil outlet; 213, first communication groove; 220, bypass water passage; 221, water inlet; 222, water outlet; 223, second communication groove; 230, first connection portion; 231, first connection hole; 300, mounting plate; 310, through hole; 320, second connection portion; 321, second connection hole; 330, annular groove; 400, sealing ring. Detailed implementation manners

[0031] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that one can more thoroughly understand the present disclosure and fully convey the scope of the present disclosure to those skilled in the art.

[0032] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless the order of performance is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0033] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms used herein do not imply an order or sequence. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the example embodiments.

[0034] For ease of description, spatial relative relationship terms may be used in the text to describe the relationship of one element or feature shown in the figure with respect to another element or feature. These relative relationship terms are, for example, "inner", "outer", "inside", "outside", "below", "beneath", "above", "over", etc. Such spatial relative relationship terms are intended to include different orientations of the device in use or operation other than the orientations depicted in the figure. For example, if the device in the figure is flipped, an element described as "below" or "beneath" other elements or features will then be oriented as "above" or "over" other elements or features. Thus, the exemplary term "below" can include both upper and lower orientations.

[0035] Figure 1 An exploded view of an oil cooler according to an embodiment of the present invention is schematically shown. Figure 2 A schematic structural view of a bypass plate 200 according to an embodiment of the present invention is schematically shown from a certain perspective. As Figure 1 and Figure 2 shown, the present invention provides an oil cooler which is connected to an oil filter. A fuel supply line and a fuel return line are provided inside the oil filter. The oil cooler includes a cooler body 100 and a bypass plate 200. A heat exchange oil passage is provided inside the cooler body 100, and the heat exchange oil passage communicates between the fuel supply line and the fuel return line; the bypass plate 200 is connected to the cooler body 100 and is located between the cooler body 100 and the oil filter. A bypass oil passage 210 is provided on the bypass plate 200. The inlet end of the bypass oil passage 210 communicates with the fuel supply line, and the outlet end of the bypass oil passage 210 communicates with the fuel return line. The bypass oil passage 210 and the heat exchange oil passage are in parallel.

[0036] The above-mentioned oil cooler realizes oil shunt by adding a bypass plate 200 and providing a bypass oil passage 210 on the bypass plate 200. By arranging the bypass plate 200 between the oil filter and the cooler body 100, after the oil flows out from the fuel supply line in the oil filter, part of it enters the bypass oil passage 210, and part of it enters the heat exchange oil passage inside the cooler body 100 for cooling. The oil entering the bypass oil passage 210 directly flows back to the fuel return line in the oil filter, and the oil in the heat exchange oil passage flows back to the fuel return line after heat exchange in the cooler body 100. Since part of the oil entering the oil cooler directly flows back to the fuel return line from the bypass oil passage 210, the flow rate of the oil entering the heat exchange oil passage is reduced. Therefore, the flow resistance inside the oil cooler is reduced, and the oil can flow smoothly in the fuel return line and flow to the oil pump, enabling the engine to have good power output performance, emission performance, and high fuel efficiency, etc.

[0037] Furthermore, a heat exchange water circuit is provided inside the cooler body 100. The heat exchange water circuit and the heat exchange oil circuit are isolated from each other. A bypass water circuit 220 is provided on the bypass plate 200. The bypass water circuit 220 and the bypass oil circuit 210 are isolated from each other. The bypass water circuit 220 is communicated with the heat exchange water circuit.

[0038] It can be understood that when the water flow rate is too large, the water flow resistance will also increase. When the water flow resistance is too large, it will cause the loss of the pump head. By providing the bypass water circuit 220 on the bypass plate 200, a part of the cooling water entering the internal part of the oil cooler will flow out through the bypass water circuit 220, and a part will enter the heat exchange water circuit to exchange heat with the oil in the heat exchange oil circuit. Since the diversion of the bypass water circuit 220 reduces the flow rate in the heat exchange water circuit, the water flow resistance can be effectively reduced, thereby avoiding the loss of the pump head and ensuring the smooth flow of the cooling water. Optionally, a water supply pipeline and a water return pipeline are provided inside the oil filter. The water supply pipeline is communicated with the water inlet end of the bypass water circuit 220, and the water return pipeline is communicated with the water outlet end of the bypass water circuit 220. The cooling water enters the inside of the oil cooler from the water supply pipeline, takes away the heat of the oil, and flows to the vehicle's whole vehicle circulating cooling system and the air conditioning system through the water return pipeline.

[0039] Furthermore, referring to Figures 2 to 6 , an oil inlet 211, an oil outlet 212, a first communication groove 213, a water inlet 221, a water outlet 222, and a second communication groove 223 are provided on the bypass plate 200. The oil inlet 211 and the oil outlet 212 are communicated through the first communication groove 213 to form the bypass oil circuit 210, and the water inlet 221 and the water outlet 222 are communicated through the second communication groove 223 to form the bypass water circuit 220.

[0040] Understandably, the inlet end of the heat exchange oil circuit is connected to the oil inlet 211 on the bypass plate 200, the outlet end of the heat exchange oil circuit is connected to the oil outlet 212 on the bypass plate 200, the inlet end of the heat exchange water circuit is connected to the water inlet 221 on the bypass plate 200, and the outlet end of the heat exchange water circuit is connected to the water outlet 222 on the bypass plate 200. Optionally, the bypass plate 200 is a rectangular plate structure, and its shape and size are set according to the cooler body 100. Optionally, the oil inlet 211, the oil outlet 212, the water inlet 221, and the water outlet 222 are respectively located at the four corners of the bypass plate 200. The depth and width of the first communication groove 213 can be set according to the oil flow rate, and the depth and width of the second communication groove 223 can be set according to the water flow rate of the cooling water. In this embodiment, the bypass oil circuit 210 and the bypass water circuit 220 are respectively formed by opening the first communication groove 213 and the second communication groove 223 on the surface of the bypass plate 200. In other embodiments, a first cavity and a second cavity isolated from each other can be provided inside the bypass plate 200. The first cavity connects the oil inlet 211 and the oil outlet 212 to form the bypass oil circuit 210, and the second cavity connects the water inlet 221 and the water outlet 222 to form the bypass water circuit 220.

[0041] Exemplarily, Figure 2 Schematically shows a structural diagram of a bypass plate 200 according to an embodiment of the present invention from a certain perspective, Figure 3 Schematically shows a structural diagram of the bypass plate 200 from another perspective, see Figure 2 and Figure 3 , the first communication groove 213 and the second communication groove 223 are respectively arranged on two sides of the bypass plate 200, and the bypass oil circuit 210 and the bypass water circuit 220 are arranged alternately. Understandably, the relative positions of the bypass oil circuit 210 and the bypass water circuit 220 are related to the positions of the oil inlet and outlet, and the water inlet and outlet. When the bypass oil circuit 210 and the bypass water circuit 220 are arranged alternately, the oil inlet 211 and the oil outlet 212 are located on the same diagonal line of the bypass plate 200, and the water inlet 221 and the water outlet 222 are located on the other diagonal line of the bypass plate 200. In this embodiment, both the first communication groove 213 and the second communication groove 223 are in a straight shape. In other embodiments, the shapes of the first communication groove 213 and the second communication groove 223 can also be arc-shaped or wavy, etc.

[0042] Figure 4 Schematically shows a structural diagram of another bypass plate 200 according to an embodiment of the present invention from a certain perspective, Figure 5 Schematically shows a structural diagram of the bypass plate 200 from another perspective, see Figure 4 and Figure 5, the first connecting groove 213 and the second connecting groove 223 are respectively arranged on the two sides of the bypass plate 200, and the bypass oil path 210 and the bypass water path 220 are arranged in parallel. It can be understood that the oil inlet 211 and the oil outlet 212 are located on the same side of the bypass plate 200, and the water inlet 221 and the water outlet 222 are located on the other side of the bypass plate 200, so that the bypass oil path 210 and the bypass water path 220 are parallel. In this embodiment, the first connecting groove 213 and the second connecting groove 223 are both in the shape of a straight line. In other embodiments, the shape of the first connecting groove 213 and the second connecting groove 223 can also be an arc shape or a wave shape.

[0043] Figure 6 A schematic diagram of the structure of another bypass plate 200 according to an embodiment of the present utility model is shown schematically. Figure 6 As shown, the first communication groove 213 and the second communication groove 223 may also be arranged on the same side of the bypass plate 200. Optionally, the side of the bypass plate 200 provided with the communication groove may be arranged toward the cooler body 100 or away from the cooler body 100.

[0044] Continue to see Figure 6 , the bypass plate 200 is provided with a first connection portion 230, and the first connection portion 230 is used to connect with the oil filter. By providing the first connection portion 230 on the bypass plate 200, the bypass plate 200 and the oil filter can be directly connected. Optionally, the first connection portion 230 is a protrusion provided on the outer periphery of the bypass plate 200, and the protrusion is provided with a first connection hole 231 for passing a bolt, and the bypass plate 200 can be locked on the housing of the oil filter by the bolt. In this embodiment, three first connection portions 230 are respectively provided on the two long sides of the bypass plate 200. In other embodiments, the number of the first connection portions 230 can also be four, five, seven or eight, etc.

[0045] Further, Figure 7 The structure diagram of the mounting plate 300 according to the embodiment of the utility model is schematically shown. Figure 8 The schematic diagram of the structure of the oil cooler according to the embodiment of the utility model is shown schematically. Figure 7 and Figure 8 A mounting plate 300 is connected to the side of the bypass plate 200 facing away from the cooler body 100. Four through holes 310 are provided on the mounting plate 300. The four through holes 310 are respectively connected to the inlet end of the bypass oil circuit 210, the outlet end of the bypass oil circuit 210, the inlet end of the bypass water circuit 220, and the outlet end of the bypass water circuit 220. The mounting plate 300 is used to connect to the oil filter.

[0046] By adding an installation plate 300, the overall structural strength of the oil cooler can be increased. Optionally, the four through holes 310 on the installation plate 300 are respectively communicated with the oil inlet 211, the oil outlet 212, the water inlet 221, and the water outlet 222 on the bypass plate 200, and the oil inlet 211, the oil outlet 212, the water inlet 221, and the water outlet 222 are respectively communicated with the oil supply pipeline, the oil return pipeline, the water inlet pipeline, and the water return pipeline on the oil filter through these four through holes 310.

[0047] Furthermore, a second connecting portion 320 is provided on the installation plate 300, and the second connecting portion 320 is used to connect with the oil filter. Optionally, the second connecting portion 320 is a protrusion provided on the outer periphery of the installation plate 300, and a second connecting hole 321 for passing a bolt is provided on the protrusion. The installation plate 300 can be locked on the housing of the oil filter through the bolt. In this embodiment, three second connecting portions 320 are respectively provided on the two long sides of the installation plate 300. In other embodiments, the number of the second connecting portions 320 can also be four, five, seven, eight, etc.

[0048] Furthermore, a ring groove 330 is provided on the outer ring of each through hole 310, the notch of the ring groove 330 faces away from the side of the bypass plate 200, and a sealing ring 400 is provided in the ring groove 330.

[0049] It can be understood that when the installation plate 300 is installed on the housing of the oil filter, the sealing ring 400 is pressed between the installation plate 300 and the housing of the oil filter, thereby effectively preventing the leakage of oil or cooling water.

[0050] Furthermore, the cooler body 100 includes a plurality of stacked support plates 110, an oil distribution path or a water distribution path is formed between adjacent two layers of support plates 110, the oil distribution paths of each layer are communicated with each other to form a heat exchange oil path, and the water distribution paths of each layer are communicated with each other to form a heat exchange water path.

[0051] Optionally, fins are provided between adjacent two layers of support plates 110. By providing the fins, the heat dissipation efficiency of the oil can be improved. The setting of the heat exchange pipelines inside the cooler body 100 is a mature prior art in this field and will not be elaborated here.

[0052] This embodiment also provides an engine, which includes an oil filter and the above-mentioned oil cooler, and the oil filter is connected to the oil cooler. By adopting the above-mentioned oil cooler, when the oil passes through the oil cooler, the flow resistance is small, and it can be smoothly supplied to the engine, so that the engine can have good power output performance, emission performance, and high fuel efficiency.

[0053] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. An oil cooler connected to an oil filter, wherein an oil supply pipeline and an oil return pipeline are arranged inside the oil filter, characterized in that: The oil cooler comprises: A cooler body (100), wherein a heat exchange oil circuit is provided inside the cooler body (100), and the heat exchange oil circuit is connected between the oil supply pipeline and the oil return pipeline; A bypass plate (200), the bypass plate (200) is connected to the cooler body (100) and is located between the cooler body (100) and the oil filter, a bypass oil circuit (210) is provided on the bypass plate (200), an inlet end of the bypass oil circuit (210) is connected to the oil supply pipeline, an outlet end of the bypass oil circuit (210) is connected to the oil return pipeline, and the bypass oil circuit (210) and the heat exchange oil circuit are connected in parallel.

2. The oil cooler according to claim 1, characterized in that: A heat exchange circuit is also provided in the cooler body (100), the heat exchange circuit and the heat exchange oil circuit are isolated from each other, a bypass water circuit (220) is provided on the bypass plate (200), the bypass water circuit (220) and the bypass oil circuit (210) are isolated from each other, and the bypass water circuit (220) is connected to the heat exchange circuit.

3. The oil cooler according to claim 2, characterized in that: The bypass plate (200) is provided with an oil inlet (211), an oil outlet (212), a first connecting groove (213), a water inlet (221), a water outlet (222) and a second connecting groove (223); the oil inlet (211) and the oil outlet (212) are connected via the first connecting groove (213) to form the bypass oil path (210); the water inlet (221) and the water outlet (222) are connected via the second connecting groove (223) to form the bypass water path (220).

4. The oil cooler according to claim 3, characterized in that: The first connecting groove (213) and the second connecting groove (223) are respectively arranged on two sides of the bypass plate (200), and the bypass oil path (210) and the bypass water path (220) are arranged in parallel or staggered.

5. The oil cooler according to claim 3, characterized in that: The first communicating groove (213) and the second communicating groove (223) are arranged on the same side of the bypass plate (200).

6. The oil cooler according to any one of claims 1 to 5, characterized in that: The bypass plate (200) is provided with a first connecting portion (230), and the first connecting portion (230) is used to be connected to the oil filter.

7. The oil cooler according to any one of claims 2 to 5, characterized in that: The side of the bypass plate (200) facing away from the cooler body (100) is connected to a mounting plate (300), and the mounting plate (300) is provided with four through holes (310). The four through holes (310) are respectively connected to the inlet end of the bypass oil circuit (210), the outlet end of the bypass oil circuit (210), the inlet end of the bypass water circuit (220), and the outlet end of the bypass water circuit (220). The mounting plate (300) is used to be connected to the oil filter.

8. The oil cooler according to claim 7, characterized in that: The mounting plate (300) is provided with a second connecting portion (320), and the second connecting portion (320) is used to be connected to an oil filter.

9. The oil cooler according to claim 7, characterized in that: The outer ring of each through hole (310) is provided with an annular groove (330), the notch of the annular groove (330) faces the side away from the bypass plate (200), and a sealing ring (400) is provided inside the annular groove (330).

10. An engine, characterized in that: It comprises an oil filter and an oil cooler as claimed in any one of claims 1 to 9, wherein the oil filter and the oil cooler are connected.

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