Engine cooling and lubrication system, engine and vehicle

Abstract

The utility model discloses an engine cooling lubricating system, engine and vehicle, engine cooling lubricating system includes the oil cooler and cooling pump of connecting on the cylinder body of engine, and cooling pump is linked with oil cooler, and oil cooler is located the same side of cylinder body with cooling pump, in the utility model embodiment, oil cooler and cooling pump are located the same side of cylinder body, can shorten the length of the pipeline of connecting oil cooler and cooling pump, and reduce the complexity of pipeline arrangement.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and in particular to an engine cooling and lubrication system, an engine, and a vehicle. Background Technology

[0002] The primary function of the engine lubrication system is to provide clean, appropriately priced, and sufficient engine oil to all moving parts of the engine. The engine cooling lubrication system typically includes an oil cooler. The primary function of the engine cooling system is to provide circulating coolant to maintain the engine within a suitable temperature range.

[0003] In related technologies, oil coolers are typically connected to components in the engine cooling system via pipes to circulate the coolant flowing within the oil cooler. However, the pipes connecting to the oil cooler are relatively long and their arrangement is complex. Utility Model Content

[0004] This utility model provides an engine cooling and lubrication system, an engine, and a vehicle, aiming to at least solve the problems of long external pipelines and complex external pipeline layout in the prior art.

[0005] In a first aspect of this utility model, an engine cooling and lubrication system is provided, including an oil cooler and a cooling pump connected to the engine block, wherein the cooling pump is connected to the oil cooler.

[0006] The oil cooler and the cooling pump are located on the same side of the cylinder block.

[0007] Optionally, both the oil cooler and the cooling pump are connected to the intake side wall of the cylinder block.

[0008] Optionally, the oil cooler has a coolant flow channel and a first liquid port and a second liquid port communicating with the coolant flow channel;

[0009] The cooling pump is connected to the first coolant port via a first coolant pipeline, and the second coolant port is connected to a second coolant pipeline.

[0010] The first coolant line, the second coolant line, and the oil cooler are located on the same side of the cylinder block.

[0011] Optionally, the first liquid inlet is located at the bottom of the oil cooler, and the first coolant line is located below the cooling pump;

[0012] The second fluid inlet is located at the top of the oil cooler, and the second coolant line is located on the side of the cooling pump near the oil cooler.

[0013] Optionally, the oil cooler and the cooling pump are arranged at intervals along the length of the cylinder block;

[0014] The cylinder block has a front end for the arrangement of the timing drive system, and the cooling pump is located on the side of the oil cooler near the front end of the cylinder block.

[0015] Optionally, along the length of the cylinder block, the distance between the oil cooler and the cooling pump is greater than or equal to 5 mm, and the distance between the oil cooler and the cooling pump is less than or equal to the dimension of the oil cooler along the length of the cylinder block.

[0016] Optionally, the engine cooling and lubrication system further includes lubricating oil passages formed on the cylinder block;

[0017] The lubricating oil passage includes a first oil passage, a first end of which extends to and communicates with the first oil inlet of the oil cooler, and a second end of which extends to and communicates with the second oil outlet of the oil filter.

[0018] Optionally, the lubricating oil passage further includes a second oil passage and a main oil passage, the second oil passage being connected to the main oil passage, and one end of the second oil passage away from the main oil passage extending to and connected to the first oil outlet of the oil cooler.

[0019] In a second aspect of this invention, an engine is also provided, including the engine cooling and lubrication system described above.

[0020] In a third aspect of this invention, a vehicle is also provided, including the engine cooling and lubrication system described above or the engine described above.

[0021] In this embodiment of the invention, the cooling pump provides circulation power for the coolant flowing in the oil cooler, thereby achieving the circulation of the coolant in the oil cooler. The oil cooler and cooling pump are located on the same side of the cylinder block, which shortens the length of the pipeline connecting the oil cooler and the cooling pump, reducing the complexity of the pipeline layout. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0023] Figure 1 This is a schematic diagram of the engine cooling and lubrication system provided in an embodiment of the present invention;

[0024] Figure 2A schematic diagram of the structure of the oil cooler and cooling pump in the engine cooling and lubrication system provided in this embodiment of the utility model;

[0025] Figure 3 A schematic diagram of the structure of the oil cooler, second oil passage, main oil passage, and part of the first oil passage in the engine cooling and lubrication system provided in the embodiment of this utility model;

[0026] Figure 4 A schematic diagram of the structure of the lubricating oil passage, oil pump, oil filter and oil cooler in the engine cooling and lubrication system provided in the embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram showing the flow direction of engine oil through the oil cooler in an engine cooling and lubrication system provided in an embodiment of the present invention.

[0028] Figure 6 This is a schematic diagram showing the flow direction of engine oil after the oil cooler is removed from the engine cooling and lubrication system provided in this embodiment of the present invention.

[0029] Figure label:

[0030] 1-Cylinder block, 101-First oil passage, 1011-First section, 1012-Second section, 102-Second oil passage, 103-Main oil passage, 104-Cylinder head oil passage, 2-Oil pump, 3-Oil filter, 4-Oil cooler, 401-First oil inlet, 402-First oil outlet, 5-Cooling pump, 501-First pump fluid inlet, 502-Second pump fluid inlet, 6-First coolant line, 7-Second coolant line, 8-Cylinder head, 9-Timing tensioner. Detailed Implementation

[0031] The technical solutions of the present invention will now be described with reference to the accompanying drawings in the embodiments of the present invention.

[0032] The embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. The invention will be described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0033] In related technologies, oil coolers are typically connected to components in the engine cooling system via pipes to circulate the coolant flowing within the oil cooler. However, the pipes connecting the oil cooler are relatively long and their arrangement is complex. To address these issues, this utility model provides an engine cooling and lubrication system, an engine, and a vehicle. The engine cooling and lubrication system, engine, and vehicle mentioned above are described in detail below.

[0034] Firstly, referring to Figure 1 and Figure 2 This utility model provides an engine cooling and lubrication system, including an oil cooler 4 and a cooling pump 5 connected to the cylinder block 1 of the engine. The cooling pump 5 is connected to the oil cooler 4. The oil cooler 4 and the cooling pump 5 are located on the same side of the cylinder block 1.

[0035] The cylinder block 1 is the main body of the engine, connecting all the cylinders and the crankcase into one unit. It serves as the supporting frame for mounting the pistons, crankshaft, and other parts and accessories. The cylinder block 1 can be a split design; for example, it can include an upper cylinder block and a lower cylinder block. The oil cooler 4 and the cooling pump 5 are both connected to the cylinder block 1, and the connection method can be a detachable connection, such as a bolted connection.

[0036] The oil cooler 4 is used to cool the engine oil. The oil cooler 4 typically cools the engine oil through heat exchange between the oil and the coolant. The cooling pump 5 provides circulation power for the coolant flowing in the oil cooler 4. Specifically, the cooling pump 5 is connected to the oil cooler 4 via a first coolant line 6; that is, the line connecting the oil cooler 4 and the cooling pump 5 is the first coolant line 6.

[0037] The cooling pump 5 can be a water pump, such as an electric water pump. The electric water pump includes an electronically controlled drive structure for operating the pump. This drive structure can be an electric motor. It can be electrically connected to the engine control unit. Unlike traditional mechanical water pumps that rely on engine belt drives, the electric water pump is not limited by engine speed and can adjust its flow rate according to actual needs.

[0038] In this embodiment of the invention, the cooling pump 5 provides circulation power for the coolant flowing in the oil cooler 4, thereby achieving the circulation of the coolant in the oil cooler 4. The oil cooler 4 and the cooling pump 5 are located on the same side of the cylinder block 1, which shortens the length of the pipeline connecting the oil cooler 4 and the cooling pump 5, reducing the complexity of the pipeline layout. Furthermore, the oil cooler 4 and the cooling pump 5 are separately connected to the cylinder block 1, which, compared to an integrated design, facilitates the maintenance of the oil cooler 4 and the cooling pump 5.

[0039] The engine cooling and lubrication system also includes an oil pump 2 and an oil filter 3 connected to the cylinder block 1. The function of the oil pump 2 is to pump oil from the oil pan. This oil pump 2 can be a variable oil pump, which is an oil pump that can dynamically adjust the oil output flow rate according to actual needs. The oil filter 3 is used to filter impurities in the oil to provide clean oil. The oil cooler 4 is preferably located above the oil filter 3 and the oil pump 2 along the height direction of the cylinder block 1. The height direction of the cylinder block 1 refers to the vertical direction extending along the depth direction of the cylinder bores on the cylinder block 1, and can be seen in the direction indicated by arrow B in the figure.

[0040] In an optional embodiment of this utility model, both the oil cooler 4 and the cooling pump 5 are connected to the intake side wall of the cylinder block 1.

[0041] The intake side wall of cylinder 1 refers to the side wall located on the intake side of cylinder 1, and the intake side of cylinder 1 is the side of cylinder 1 that connects to the intake system. (Refer to...) Figure 3 The engine cooling and lubrication system also includes lubricating oil passages formed on the cylinder block 1. These lubricating oil passages are channels for transporting engine oil. The lubricating oil passages include a main oil passage 103 and a second oil passage 102, which are connected to the main oil passage 103. The oil cooler 4 is connected to the main oil passage 103 via the second oil passage 102. The main oil passage 103 is located on the intake side of the cylinder block 1. In this embodiment, the oil cooler 4 is connected to the intake side wall of the cylinder block 1. The oil cooler 4 and the main oil passage 103 are located on the same side, which shortens the length of the second oil passage 102 and facilitates a compact layout of the lubricating oil passages.

[0042] The main oil passage 103 extends along the length of the cylinder block 1. The length of the cylinder block 1 refers to the arrangement direction of the multiple cylinder bores on the cylinder block 1. The length of the cylinder block 1 can be referenced. Figure 1 and Figure 4 The direction indicated by arrow A. The lubrication passage also includes multiple main bearing oil passages, which are used to supply oil to the main bearings in the engine. The main bearing oil passages are connected to the main oil passage 103, and the multiple main bearing oil passages are distributed at intervals along the length of the cylinder block 1.

[0043] In an optional embodiment of this utility model, the oil cooler 4 has a coolant flow channel and a first liquid port and a second liquid port communicating with the coolant flow channel; the cooling pump 5 is connected to the first liquid port through the first coolant pipe 6, and the second liquid port is connected to the second coolant pipe 7; the first coolant pipe 6, the second coolant pipe 7 and the oil cooler 4 are located on the same side of the cylinder block 1.

[0044] The coolant flow channel is used to supply coolant, which may include water. The coolant pump 5 has a first coolant inlet 501, which is connected to a first coolant port via a first coolant line 6. The coolant pump 5 also has a second coolant inlet 502, which is connected to the radiator via a line. The end of the second coolant line 7 furthest from the oil cooler 4 can be connected to the thermostat assembly.

[0045] The flow path of the coolant can be referenced. Figure 2 The dashed arrow indicates the path: coolant flowing from the thermostat assembly enters the oil cooler 4 through the second coolant line 7; coolant flowing from the oil cooler 4 is pumped into the coolant pump 5 through the first coolant line 6; and coolant pumped from the coolant pump 5 flows back to the thermostat assembly through the water channels within the cylinder block 1, thus achieving coolant circulation. As an example, coolant in the water channels within the cylinder block 1 enters the oil cooler 4 through a bypass passage in the thermostat assembly and the second coolant line 7; coolant flowing from the oil cooler 4 is pumped into the coolant pump 5 through the first coolant line 6, and then pumped into the water channels within the cylinder block 1, forming a small circulation loop. It should be noted that the bypass passage can be normally open.

[0046] In related technologies, the pipes connecting the oil cooler are arranged on multiple sides of the cylinder block, which occupies the limited space around the engine and affects the arrangement of other components. In this embodiment, the first coolant pipe 6 and the second coolant pipe 7 are arranged on only one side of the cylinder block 1, which is compact and can reduce the impact on the arrangement of other components and improve assemblability.

[0047] In an optional embodiment of this utility model, the first liquid outlet is located at the bottom of the oil cooler 4, and the first coolant pipe 6 is located below the cooling pump 5; the second liquid outlet is located at the top of the oil cooler 4, and the second coolant pipe 7 is located on the side of the cooling pump 5 near the oil cooler 4, which can avoid the intersection of the first coolant pipe 6 and the second coolant pipe 7.

[0048] In an optional embodiment of this invention, the oil cooler 4 and the cooling pump 5 are arranged at intervals along the length of the cylinder block 1; the engine includes a timing drive system, and the cylinder block 1 has a front end for arranging the timing drive system. The cooling pump 5 is located on the side of the oil cooler 4 near the front end of the cylinder block 1. The timing drive system includes a timing belt or timing chain, a timing tensioner 9, etc. In this embodiment, the cooling pump 5 is located on the side of the oil cooler 4 near the front end of the cylinder block 1. The pipe connected to the second pump fluid inlet 502 bypasses the front end of the cylinder block 1 and connects to the radiator, which shortens the length of the pipe connecting the second pump fluid inlet 502 and the radiator.

[0049] In an optional embodiment of this utility model, the distance between the oil cooler 4 and the cooling pump 5 along the length of the cylinder block 1 is greater than or equal to 5 mm, and the distance between the oil cooler 4 and the cooling pump 5 is less than or equal to the dimension of the oil cooler 4 along the length of the cylinder block 1. In this embodiment, the distance between the oil cooler 4 and the cooling pump 5 is greater than or equal to 5 mm, which provides sufficient safety distance to prevent interference or collision between the oil cooler 4 and the cooling pump 5 due to vibration, assembly errors, etc. Furthermore, the smaller distance between the oil cooler 4 and the cooling pump 5 further shortens the length of the pipeline connecting the oil cooler 4 and the cooling pump 5.

[0050] In an optional embodiment of this utility model, reference is made to Figure 3 and Figure 4 The lubricating oil passage includes a first oil passage 101. The first end of the first oil passage 101 extends to and communicates with the first oil inlet 401 of the oil cooler 4. The second end of the first oil passage 101 extends to and communicates with the second oil outlet of the oil filter 3.

[0051] The first oil passage 101 includes a first segment 1011 and a second segment 1012 that are connected. The first segment 1011 and the second segment 1012 intersect. The first end of the first oil passage 101 is also the end of the second segment 1012 that is away from the first segment 1011, and the second end of the first oil passage 101 is also the end of the first segment 1011 that is away from the second segment 1012. The second segment 1012 includes a main body segment and a bent segment. The main body segment preferably extends along the length direction of the cylinder block 1 and intersects with the first segment 1011. The bent segment is connected to the end of the main body segment that is away from the first segment 1011. The end of the second segment 1012 that is away from the first segment 1011 is also the end where the bent segment is located.

[0052] A first sealing ring can be provided at the junction of the first segment 1011 and the second oil outlet, and the first sealing ring can be provided on the oil filter 3. A second sealing ring can be provided at the junction of the second segment 1012 and the first oil inlet 401, and the second sealing ring can be embedded in the second sealing ring groove opened on the cylinder block 1. In this embodiment, the first end of the first oil passage 101 extends directly to the first oil inlet 401, and the second end of the first oil passage 101 extends directly to the second oil outlet of the oil filter 3, which can reduce the arrangement of external oil passages. In addition, when the distance between the oil cooler 4 and the cooling pump 5 is small, the distance between the oil cooler 4 and the front end of the cylinder block 1 can be reduced, thereby shortening the length of the second segment 1012.

[0053] In an optional embodiment of the present invention, the end of the second oil passage 102 away from the main oil passage 103 extends to the first oil outlet 402 of the oil cooler 4 and is connected to the first oil outlet 402 of the oil cooler 4.

[0054] The oil cooler 4 also includes an oil flow channel that communicates with the first oil inlet 401 and the first oil outlet 402. The first oil inlet 401 and the first oil outlet 402 are located at the bottom and top of the oil cooler 4, respectively, and are preferably arranged diagonally opposite each other. The second oil passage 102 preferably extends along the width direction of the cylinder block 1. A third sealing ring is provided at the junction of the second oil passage 102 and the first oil outlet 402, and the third sealing ring can be fitted into a third sealing ring groove opened on the cylinder block 1. In this embodiment, the second oil passage 102 extends directly to the first oil outlet 402, enabling…

[0055] This reduces the need for external oil circuits.

[0056] Reference Figure 5 When installing oil cooler 4, the oil flow path can be referenced. Figure 5 The path indicated by the dashed arrow shows the engine oil flowing through the first oil passage 101 to the oil cooler 4. After the oil cooler 4 cools the oil, it flows through the second oil passage 102 into the main oil passage 103. (Refer to...) Figure 6 With minimal changes to the overall machine layout, the oil cooler 4 can be eliminated by altering the structure of the lubrication channels. After eliminating the oil cooler 4, the oil flowing from the oil filter 3 directly enters the main oil passage 103 through the oil passage. Only a cylinder block modification is required to change the structure of the lubrication channels, thus enabling switching between different machine model designs.

[0057] In an optional embodiment of this utility model, the lubrication oil passage further includes a third oil passage, and the oil outlet of the oil pump 2 is connected to the second oil inlet of the oil filter 3 through the third oil passage. During the operation of the engine cooling and lubrication system, the oil pump 2 pumps oil from the oil pan and delivers the oil to the oil filter 3 through the third oil passage. After the oil filter 3 filters the oil, the clean oil flows through the first oil passage 101 to the oil cooler 4. After the oil cooler 4 cools the oil, the oil enters the main oil passage 103 through the second oil passage 102.

[0058] In an optional embodiment of the present invention, the engine further includes a cylinder head 8, and the lubrication passage further includes a cylinder head oil passage 104 communicating with the main oil passage 103. The cylinder head oil passage 104 is used to transfer engine oil to the lubricated components arranged on the cylinder head 8.

[0059] Secondly, this utility model embodiment provides an engine that includes the engine cooling and lubrication system provided in the first aspect. Since the engine includes the aforementioned engine cooling and lubrication system, it also possesses the beneficial effects of the aforementioned engine cooling and lubrication system, which will not be elaborated further here.

[0060] Thirdly, the present invention provides a vehicle, which includes the engine cooling and lubrication system provided in the first aspect or the engine provided in the second aspect.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0062] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0063] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0064] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

[0065] The engine cooling and lubrication system, engine, and vehicle provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the structure and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An engine cooling and lubrication system, characterized in that, Includes an oil cooler (4) and a cooling pump (5) connected to the cylinder block (1) of the engine, wherein the cooling pump (5) is connected to the oil cooler (4); The oil cooler (4) and the cooling pump (5) are located on the same side of the cylinder block; The oil cooler (4) and the cooling pump (5) are both connected to the intake side wall of the cylinder block (1).

2. The engine cooling and lubrication system according to claim 1, characterized in that, The oil cooler (4) has a coolant flow channel and a first liquid port and a second liquid port connected to the coolant flow channel; The cooling pump (5) is connected to the first liquid port through the first coolant pipeline (6), and the second liquid port is connected to the second coolant pipeline (7). The first coolant line (6), the second coolant line (7), and the oil cooler (4) are located on the same side of the cylinder block (1).

3. The engine cooling and lubrication system according to claim 2, characterized in that, The first liquid inlet is located at the bottom of the oil cooler (4), and the first coolant pipe (6) is located below the cooling pump (5); The second liquid inlet is located at the top of the oil cooler (4), and the second coolant line (7) is located on the side of the cooling pump (5) near the oil cooler (4).

4. The engine cooling and lubrication system according to any one of claims 1-3, characterized in that, Along the length of the cylinder block (1), the oil cooler (4) and the cooling pump (5) are arranged at intervals; The cylinder block (1) has a front end for the arrangement of the timing drive system, and the cooling pump (5) is located on the side of the oil cooler (4) near the front end of the cylinder block (1).

5. The engine cooling and lubrication system according to claim 4, characterized in that, Along the length of the cylinder (1), the distance between the oil cooler (4) and the cooling pump (5) is greater than or equal to 5 mm, and the distance between the oil cooler and the cooling pump is less than or equal to the dimension of the oil cooler (4) along the length of the cylinder (1).

6. The engine cooling and lubrication system according to any one of claims 1-3, characterized in that, The engine cooling and lubrication system also includes lubricating oil passages formed on the cylinder block (1); The lubricating oil passage includes a first oil passage (101), the first end of which extends to the first oil inlet of the oil cooler (4) and is connected to the first oil inlet of the oil cooler (4), and the second end of which extends to the second oil outlet of the oil filter (3) and is connected to the second oil outlet of the oil filter (3).

7. The engine cooling and lubrication system according to claim 6, characterized in that, The lubricating oil passage also includes a second oil passage (102) and a main oil passage (103). The second oil passage (102) is connected to the main oil passage (103). One end of the second oil passage (102) away from the main oil passage (103) extends to the first oil outlet of the oil cooler (4) and is connected to the first oil outlet of the oil cooler (4).

8. An engine, characterized in that, Includes the engine cooling and lubrication system as described in any one of claims 1 to 7.

9. A vehicle, characterized in that, Includes the engine cooling and lubrication system as described in any one of claims 1 to 7 or the engine as described in claim 8.

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