Timing cover, timing cover assembly, engine, and vehicle
By setting a channel on the timing cover, the problem of medium loss along the flow path caused by the length and curvature of the engine pipes is solved, achieving stability and flexibility of medium flow and reducing production costs.
Patent Information
- Application Number
- PCT/CN2025/099962
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-07-31
- Filing Date
- 2025-06-09
- Publication Date
- 2026-02-05
AI Technical Summary
In existing technologies, the pipelines of engines are too long and have many bends, resulting in significant fluid loss along the pipeline.
A timing cover is designed with channels that connect the first and second devices. The channels are located on the inner and outer sides of the timing cover, reducing the flow length and splicing of the medium. Brazing is used to improve stability. The channel design is flexible and reduces the risk of medium leakage.
By optimizing the channel design, the loss of the medium along the flow path was reduced, the oil circuit structure was simplified, the production cost was reduced, and the stability and flexibility of the medium flow were improved.
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Figure CN2025099962_05022026_PF_FP_ABST
Abstract
Description
Timing cover, timing cover assembly, engine and vehicle
[0001] Cross-reference to related applications
[0002] The present application claims priority to the Chinese patent application No. 202411046571.9, filed on July 31, 2024, and entitled "Timing cover, timing cover assembly, engine and vehicle", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD
[0003] The present application relates to the technical field of engines, in particular to a timing cover, a timing cover assembly, an engine and a vehicle. BACKGROUND
[0004] The timing cover of the engine is arranged on the side of the engine and connected with the cylinder block of the engine, and is used for protecting the timing gear and chain. In order to enable the various media in the engine to flow smoothly, the manufacturer arranges a plurality of pipelines outside the cylinder block, oil pan and timing cover of the engine, so that the media can flow smoothly in the pipelines. In the prior art, the pipeline is too long and has too many bends, which increases the along-the-way loss of the media. SUMMARY
[0005] The purpose of the present application is to provide a timing cover, a timing cover assembly, an engine and a vehicle, which solve the problem of large along-the-way loss of the media.
[0006] To achieve the purpose of the present application, the present application provides the following technical solutions:
[0007] In a first aspect, the present application provides a timing cover, which is provided with a channel, the channel is adapted to communicate a first device and a second device, the channel is adapted for the flow of media, and the first device and the second device are respectively located on the inner and outer sides of the timing cover.
[0008] In an embodiment, the timing cover comprises a main plate and a side plate connected to the edge of the main plate, the main plate comprises a first surface and a second surface arranged oppositely, the side plate comprises a third surface and a fourth surface arranged oppositely, and the channel penetrates through the first surface and the second surface; and / or, the channel penetrates through the third surface and the fourth surface.
[0009] In an embodiment, the channel comprises a first channel and a second channel arranged at intervals, one end of the first channel is adapted to communicate a first connecting port of the first device, the other end of the first channel is adapted to communicate a second connecting port of the second device, one end of the second channel is adapted to communicate a third connecting port of the first device, and the other end of the second channel is adapted to communicate a fourth connecting port of the second device.
[0010] In one embodiment, the passage comprises a first segment and a second segment which are connected, the first segment and the second segment have a first included angle A, the first segment is adapted to communicate with the first connecting port of the first device, and the second segment is adapted to communicate with the second connecting port of the second device, or the first segment is adapted to communicate with the third connecting port of the first device, and the second segment is adapted to communicate with the fourth connecting port of the second device.
[0011] In one embodiment, the first included angle A satisfies: 30°≤A≤150°.
[0012] In one embodiment, the timing cover further comprises a third passage, one end of the third passage is adapted to connect the fifth connecting port of the second device, and the other end of the third passage communicates with the inner space of the timing cover.
[0013] In one embodiment, the passage further comprises a first passage and a second passage which are spaced apart, one end of the first passage is adapted to communicate with the first connecting port of the first device, and the other end of the first passage is adapted to communicate with the second connecting port of the second device, one end of the second passage is adapted to communicate with the third connecting port of the first device, and the other end of the second passage is adapted to communicate with the fourth connecting port of the second device, and the third passage is spaced apart from the first passage and the second passage.
[0014] In one embodiment, the timing cover further comprises a protrusion, the protrusion protrudes from the first surface of the timing cover, the protrusion is in a cylindrical shape, and the third passage is connected with the sidewall of the protrusion.
[0015] In a second aspect, the present application further provides a timing cover assembly, comprising a first device, a second device and the timing cover according to any one of the embodiments of the first aspect, the first device is adapted to pump or pump the medium, the first device has a first connecting port and a third connecting port, the second device has a second connecting port, a fourth connecting port and a fifth connecting port, and the second device encloses a receiving cavity which is adapted to receive the medium.
[0016] In one embodiment, the timing cover assembly further comprises a connecting pipeline, and two ends of the passage are connected with the first device and the second device respectively through the connecting pipeline.
[0017] In one embodiment, the first device is an oil pump, and / or the second device is an oil pot.
[0018] In a third aspect, the present application further provides an engine, comprising an engine body and the timing cover assembly according to any one of the embodiments of the second aspect, and the engine body is connected with the timing cover assembly.
[0019] In a fourth aspect, the application provides a vehicle comprising the engine according to any one of the embodiments of the third aspect.
[0020] By arranging the timing cover, the timing cover is provided with a channel, the channel is adapted to communicate the first device and the second device, the channel is adapted to flow the medium, the first device and the second device are respectively located on the inner and outer sides of the timing cover, the length of the channel is short, and the splicing of the channel is less, thereby reducing the along-the-way loss of the medium. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0022] Fig. 1 is a structural schematic diagram of a timing cover assembly according to an embodiment;
[0023] Fig. 2 is a top view of the timing cover assembly according to an embodiment;
[0024] Fig. 3 is a bottom view of the timing cover assembly according to an embodiment;
[0025] Fig. 4 is a structural schematic diagram of the timing cover according to an embodiment;
[0026] Fig. 5 is a structural schematic diagram of the second device according to an embodiment;
[0027] Fig. 6 is a sectional view of Fig. 4 along M-M;
[0028] Fig. 7 is a sectional view of the second device according to an embodiment;
[0029] Fig. 8 is a structural schematic diagram of a vehicle according to an embodiment.
[0030] Legend: 10-timing cover, 101-first surface, 102-third surface, 103-second surface, 11-channel, 111-first channel, 112-second channel, 113-first section, 114-second section, 12-first device, 13-second device, 14-third channel, 20-connection pipeline, 21-oil can oil inlet pipe, 22-oil can oil outlet pipe, 23-oil pump oil inlet pipe, 24-oil pump oil return pipe, 25-gas outlet pipe, 30-timing cover assembly, 31-fifth connection port, A-first included angle; 50-vehicle. DETAILED EMBODIMENTS
[0031] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.
[0032] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be intervening components. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be intervening components.
[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety.
[0034] Some embodiments of the present application will be described in detail with reference to the drawings. The following embodiments and features of the embodiments can be combined with each other without conflict.
[0035] The timing cover 10 of the engine is arranged on the side of the engine and connected to the cylinder block of the engine, and is used for protecting the timing gears and chains. In order to enable various media in the engine to flow smoothly, the manufacturer arranges pipelines on the cylinder block, the oil pan and the timing cover 10 of the engine, so that the media can flow smoothly in the pipelines. In the prior art, the pipelines are too long and too curved, which increases the along-the-way loss of the media.
[0036] In view of the above problems, the timing cover 10 provided in the embodiments of the present application is arranged with a channel 11, the channel 11 is adapted to communicate a first device 12 and a second device 13, the channel 11 is adapted to be used for the flow of media, and the first device 12 and the second device 13 are respectively located on the inner and outer sides of the timing cover 10. Optionally, the first device 12 is an oil can. Optionally, the second device 13 is a multi-union oil pump. Optionally, the media is engine oil, which is mainly used for reducing the wear of the engine, increasing the service life of the engine, and cooling the engine when the engine oil flows through the inside of the engine. Optionally, the multi-union oil pump is connected to the oil can through a pipeline, the oil circuit structure is simple, the complex oil circuit arranged on the cylinder block of the engine, the oil pan of the engine and the timing cover 10 of the engine is avoided, the mold structure is simplified, the casting and machining difficulty is reduced, and the production cost is reduced.
[0037] By setting the timing cover 10, the timing cover 10 is provided with a channel 11, the channel 11 is suitable for connecting the first device 12 and the second device 13, the channel 11 is suitable for the medium flow, the first device 12 and the second device 13 are located on the inner and outer sides of the timing cover 10 respectively, the length of the channel 11 is short, and the splicing of the channel 11 is less, thereby reducing the along-the-way loss of the medium.
[0038] In an embodiment, referring to FIG. 1, FIG. 2 and FIG. 3, the timing cover 10 includes a main plate and a side plate connected to the edge of the main plate, the main plate includes a first surface 101 and a second surface 103 arranged oppositely, the side plate includes a third surface 102 and a fourth surface arranged oppositely, and the channel 11 penetrates the first surface 101 and the second surface 103; and / or, the channel 11 penetrates the third surface 102 and the fourth surface.
[0039] Optionally, the first surface 101 and the second surface 103 are an integral structure. Optionally, the first surface 101 and the second surface 103 are manufactured separately and then connected together. Optionally, the connection mode between the first surface 101 and the second surface 103 can be, but is not limited to, buckle connection, rivet connection and welding connection. Optionally, the first surface 101 and the second surface 103 are brazed, which is simple to operate and stable in connection. Specifically, the connection mode between the first surface 101 and the third surface 102 is brazing, a metal material with a lower melting point than the first surface 101 and the third surface 102 is used as a filler metal, the first surface 101, the third surface 102 and the filler metal are heated to a temperature higher than the melting point of the filler metal and lower than the melting point of the first surface 101 and the third surface 102, the liquid filler metal is used to wet the first surface 101 and the third surface 102, fill the interface gap and realize the interatomic mutual diffusion with the first surface 101 and the third surface 102, thereby realizing welding. The connection mode of welding is simple to operate and stable in connection. The application is exemplified by the connection mode of brazing, which should not be understood as a limitation of the application.
[0040] Optionally, the first surface 101 faces away from the body of the engine, and the second surface 103 faces toward the body of the engine. Optionally, the first surface 101, the third surface 102 and the second surface 103 are all polished, and the polishing mode can be fluid polishing, mechanical polishing, ultrasonic polishing, chemical polishing and electrolytic polishing. Optionally, the first surface 101, the third surface 102 and the second surface 103 are treated by chemical polishing, which can protect the thin wall of the first surface 101, the third surface 102 and the second surface 103, avoid affecting the material stiffness, make the first surface 101, the third surface 102 and the second surface 103 smooth and glossy, and the polishing operation is simple and efficient.
[0041] The timing cover 10 comprises a main plate and a side plate connected to the edge of the main plate, the main plate comprises a first surface 101 and a second surface 103 arranged oppositely, the side plate comprises a third surface 102 and a fourth surface arranged oppositely, and the channel 11 penetrates the first surface 101 and the second surface 103; and / or, the channel 11 penetrates the third surface 102 and the fourth surface, the channel 11 can penetrate the first surface 101 and the third surface 102, or the channel 11 penetrates the first surface 101 and the second surface 103, which improves the flexibility of the channel 11.
[0042] In an embodiment, referring to FIG. 1, FIG. 2 and FIG. 3, the channel 11 comprises a first channel 111 and a second channel 112 arranged at intervals, one end of the first channel 111 is adapted to communicate with the first connecting port of the first device 12, the other end of the first channel 111 is adapted to communicate with the second connecting port of the second device 13, one end of the second channel 112 is adapted to communicate with the third connecting port of the first device 12, and the other end of the second channel 112 is adapted to communicate with the fourth connecting port of the second device 13.
[0043] Optionally, the shape of the cross section of the first channel 111 is any one of a polygon, an ellipse, a circle and an irregular shape. Optionally, the shape of the cross section of the first channel 111 can be, but is not limited to, a quadrilateral, a hexagon, an octagon, an ellipse, a circle and an irregular shape. Optionally, the shape of the cross section of the second channel 112 is any one of a polygon, an ellipse, a circle and an irregular shape. Optionally, the shape of the cross section of the second channel 112 can be, but is not limited to, a quadrilateral, a hexagon, an octagon, an ellipse, a circle and an irregular shape.
[0044] Optionally, a pipeline can be arranged in the first channel 111, or the medium can directly flow in the first channel 111. Optionally, a pipeline can be arranged in the second channel 112, or the medium can directly flow in the second channel 112.
[0045] By arranging the channel 11 comprising the first channel 111 and the second channel 112 arranged at intervals, one end of the first channel 111 is adapted to communicate with the first connecting port, the other end of the first channel 111 is adapted to communicate with the second connecting port, one end of the second channel 112 is adapted to communicate with the third connecting port, and the other end of the second channel 112 is adapted to communicate with the fourth connecting port, the first channel 111 and the second channel 112 of the channel 11 on the timing cover 10 are adapted, the channel 11 is short and has a large bending radius, there are few sealing positions on the timing cover 10, the risk of medium leakage is reduced, the pipeline pressure loss is low, the oil pressure establishment time can be shortened, the pressure corresponding capacity is improved, and no other sealing structure needs to be added, which is stable and reliable.
[0046] In one embodiment, referring to FIG. 1, FIG. 2 and FIG. 3, the channel 11 comprises a first section 113 and a second section 114 connected in communication, the first section 113 and the second section 114 have a first included angle A, the first section 113 is adapted to communicate with a first connecting port of the first device 12, and the second section 114 is adapted to communicate with a second connecting port of the second device 13, or the first section 113 is adapted to communicate with a third connecting port of the first device 12, and the second section 114 is adapted to communicate with a fourth connecting port of the second device 13.
[0047] Optionally, the first section 113 and the second section 114 can be formed on the timing cover 10 at one time. Optionally, the first section 113 and the second section 114 can be formed on the timing cover 10 at two times, and then the first section 113 and the second section 114 are connected in communication.
[0048] Optionally, the first section 113 extends from the first surface 101 to the inside of the timing cover 10. Optionally, the second section 114 extends from the third surface 102 to the inside of the timing cover 10. Optionally, the second section 114 extends from the second surface 103 to the inside of the timing cover 10.
[0049] Optionally, the shape of the cross section of the inlet of the first device 12 is any one of a polygon, an ellipse, a circle and an irregular shape. Optionally, the shape of the cross section of the inlet of the first device 12 can be, but is not limited to, a quadrilateral, a hexagon, an octagon, an ellipse, a circle and an irregular shape.
[0050] Optionally, the shape of the cross section of the outlet of the second device 13 is any one of a polygon, an ellipse, a circle and an irregular shape. Optionally, the shape of the cross section of the outlet of the second device 13 can be, but is not limited to, a quadrilateral, a hexagon, an octagon, an ellipse, a circle and an irregular shape.
[0051] By setting the channel 11 comprising a first section 113 and a second section 114 connected in communication, the first section 113 and the second section 114 have a first included angle A, the first section 113 is adapted to communicate with a first connecting port of the first device 12, and the second section 114 is adapted to communicate with a second connecting port of the second device 13, or the first section 113 is adapted to communicate with a third connecting port of the first device 12, and the second section 114 is adapted to communicate with a fourth connecting port of the second device 13, the setting of the first section 113 and the second section 114 makes the shape of the channel 11 can be set according to the demand, the first included angle A can be set according to the shortest demand, or the first included angle A is determined according to the demand of facilitating the setting of the connecting pipeline 20, which improves the flexibility of the setting of the channel 11.
[0052] In one embodiment, referring to FIG. 1, FIG. 2 and FIG. 3, the first included angle A satisfies: 30°≤A≤150°.
[0053] Optionally, the cross section of the first section 113 and the cross section of the second section 114 are both circular, and the axis of the first section 113 and the axis of the second section 114 have a first included angle A. When the shape of the first section 113 and the shape of the second section 114 are both curved, they are respectively fitted into two straight passages.
[0054] Optionally, A can be, but is not limited to, 30°, 60°, 90° and 150°, and the wider angle range meets the needs of various communication, and facilitates the setting of the first section 113 and the second section 114.
[0055] Specifically, the first included angle A can be set according to the shortest demand or determined according to the demand of facilitating the setting of the connecting pipeline 20, thereby improving the setting flexibility of the first section 113 and the second section 114.
[0056] In one embodiment, referring to FIGS. 1, 2 and 3, the timing cover 10 is further provided with a third passage 14, one end of the third passage 14 is adapted to be connected to the fifth connecting port 31 of the second device 13, and the other end of the third passage 14 is communicated to the inside space of the timing cover 10.
[0057] Optionally, referring to FIGS. 1, 2 and 3, the included angle between the orthogonal projection of the first surface 101 on the length direction of the timing cover 10 and the orthogonal projection of the third surface 102 on the length direction of the timing cover 10 is "L" shape; and / or, the included angle between the orthogonal projection of the second surface 103 on the length direction of the timing cover 10 and the orthogonal projection of the third surface 102 on the length direction of the timing cover 10 is "L" shape.
[0058] Optionally, the included angle between the orthogonal projection of the first surface 101 on the length direction of the timing cover 10 and the orthogonal projection of the third surface 102 on the length direction of the timing cover 10 is "L" shape, and the included angle between the orthogonal projection of the second surface 103 on the length direction of the timing cover 10 and the orthogonal projection of the third surface 102 on the length direction of the timing cover 10 is "L" shape.
[0059] Optionally, the included angle between the orthogonal projection of the first surface 101 in the length direction of the timing cover 10 and the orthogonal projection of the third surface 102 in the length direction of the timing cover 10 ranges from 30° to 150°. Optionally, the included angle between the orthogonal projection of the first surface 101 in the length direction of the timing cover 10 and the orthogonal projection of the third surface 102 in the length direction of the timing cover 10 can be, but is not limited to, 30°, 60°, 90° and 150°, etc. Optionally, the included angle between the orthogonal projection of the second surface 103 in the length direction of the timing cover 10 and the orthogonal projection of the third surface 102 in the length direction of the timing cover 10 ranges from 30° to 150°. Optionally, the included angle between the orthogonal projection of the second surface 103 in the length direction of the timing cover 10 and the orthogonal projection of the third surface 102 in the length direction of the timing cover 10 can be, but is not limited to, 30°, 60°, 90° and 150°, etc.
[0060] Specifically, the timing cover 10 is further provided with a third channel 14, one end of the third channel 14 is adapted to be connected to the fifth connecting port 31 of the second device 13, and the other end of the third channel 14 is communicated to the inner space of the timing cover 10. The above arrangement improves the flexibility of the connection between the third channel 14 and the second device 13.
[0061] In one embodiment, referring to FIGS. 1, 2, 3 and 4, the channel 11 further comprises a first channel 111 and a second channel 112 which are arranged at intervals, one end of the first channel 111 is adapted to be communicated to the first connecting port of the first device 12, the other end of the first channel 111 is adapted to be communicated to the second connecting port of the second device 13, one end of the second channel 112 is adapted to be communicated to the third connecting port of the first device 12, the other end of the second channel 112 is adapted to be communicated to the fourth connecting port of the second device 13, and the third channel 14 is arranged at intervals with the first channel 111 and the second channel 112.
[0062] Optionally, the shape of the cross section of the third channel 14 is any one of a polygon, an ellipse, a circle and an irregular shape. Optionally, the shape of the cross section of the third channel 14 can be, but is not limited to, a quadrilateral, a hexagon, an octagon, an ellipse, a circle and an irregular shape, etc.
[0063] Optionally, referring to FIG. 5, one end of the third channel 14 is communicated with the fifth connecting port 31, and the other end of the third channel 14 is communicated with the crankcase of the engine.
[0064] Optionally, the arrangement of the third channel 14 realizes the balance of air pressure.
[0065] The first channel 111 is adapted to communicate with the first connecting port of the first device 12 at one end, and adapted to communicate with the second connecting port of the second device 13 at the other end; the second channel 112 is adapted to communicate with the third connecting port of the first device 12 at one end, and adapted to communicate with the fourth connecting port of the second device 13 at the other end; the third channel 14 is spaced apart from the first channel 111 and the second channel 112, and the third channel 14 is spaced apart from the first channel 111 and the second channel 112 to avoid interference among the third channel 14, the first channel 111 and the second channel 112.
[0066] In an embodiment, referring to FIGS. 1, 2 and 3, the timing cover 10 further comprises a protrusion protruding from the first surface 101 of the timing cover 10, and the protrusion is in a cylindrical shape, and the third channel 14 is connected to a side wall of the protrusion.
[0067] Optionally, the protrusion is in a cylindrical shape or a square cylindrical shape.
[0068] In an embodiment, referring to FIGS. 1, 2 and 3, the timing cover 10 further comprises a protrusion protruding from the first surface 101 of the timing cover 10, and the protrusion is in a cylindrical shape, and the third channel 14 is connected to a side wall of the protrusion.
[0069] The timing cover assembly 30 provided by the embodiment of the present application comprises the first device 12, the second device 13 and the timing cover 10 as described above, the first device 12 is adapted to pump or pump medium, the first device 12 has a first connecting port and a third connecting port, the second device 13 has a second connecting port, a fourth connecting port and a fifth connecting port, and the second device 13 encloses a receiving cavity adapted to receive medium.
[0070] In an embodiment, referring to FIGS. 1, 2 and 3, the timing cover assembly 30 further comprises a connecting pipeline 20, and the two ends of the channel 11 are connected to the first device 12 and the second device 13 respectively through the connecting pipeline 20.
[0071] Optionally, the shape of the cross section of the connecting pipeline 20 is any one of a polygonal shape, an elliptical shape, a circular shape and an irregular shape. Optionally, the shape of the cross section of the connecting pipeline 20 can be, but is not limited to, a quadrilateral shape, a hexagonal shape, an octagonal shape, an elliptical shape, a circular shape and an irregular shape.
[0072] In an embodiment, referring to FIGS. 1, 2 and 3, the timing cover assembly 30 further comprises a connecting pipeline 20, and the two ends of the channel 11 are connected to the first device 12 and the second device 13 respectively through the connecting pipeline 20. The connecting pipeline 20 enables the medium in the first device 12 and the second device 13 to flow into each other, and improves the convenience of connecting the first device 12 and the second device 13.
[0073] In an embodiment, referring to FIG. 1, FIG. 2 and FIG. 3, the first device 12 is an oil pump; and / or, the second device 13 is an oil can.
[0074] The first device 12 is a multi-oil pump, the second device 13 is an oil can, and the medium is engine oil. The oil can is connected to the first surface 101, and the connection between the oil can and the first surface 101 can be, but is not limited to, buckle connection, rivet connection, and welding connection. Specifically, the surface of the oil can is connected to the first surface 101 by brazing, using a metal material with a lower melting point than the surface of the oil can and the first surface 101 as a filler metal, heating the surface of the oil can, the first surface 101, and the filler metal to a temperature higher than the melting point of the filler metal and lower than the melting point of the surface of the oil can and the first surface 101, using the liquid filler metal to wet the surface of the oil can and the first surface 101, filling the gap between the interfaces and realizing interatomic mutual diffusion with the surface of the oil can and the first surface 101, thereby realizing welding. The connection mode of welding is simple to operate and stable in connection. The present application is exemplified by brazing, which should not be construed as a limitation on the present application.
[0075] Optionally, the first channel 111 is responsible for supplying oil from the oil can to the multi-oil pump, and the second channel 112 is responsible for pumping oil from the multi-oil pump to the oil can. The multi-oil pump has the functions of both an oil supply pump and an oil return pump. The inlet of the oil supply pump is connected to the outlet of the oil can. When the oil pump is working, negative pressure is formed to suck engine oil from the oil can into the oil supply pump to provide the required pressure oil for engine lubrication. Optionally, a return pump is also provided in the multi-oil pump to forcibly return the engine oil to the oil can. Optionally, the connection between the connecting pipeline 20 and the multi-oil pump, the timing cover 10, and the oil can adopts an axial or radial sealing mode of a sealing ring. The two ends of the pipeline are provided with flanges to realize the fixation and sealing of the pipeline and the corresponding fittings by bolts.
[0076] Optionally, the connecting pipeline 20 includes an oil can oil inlet pipe 21 and an oil can oil outlet pipe 22 arranged at intervals. The oil can oil inlet pipe 21 and the oil can oil outlet pipe 22 are arranged on the same side of the first surface 101 of the timing cover 10. One end of the oil can oil inlet pipe 21 is opposite the fourth segment, and the other end of the oil can oil inlet pipe 21 is opposite the inlet of the oil can. One end of the oil can oil outlet pipe 22 is arranged in the second segment 114, and the other end of the oil can oil outlet pipe 22 is opposite the outlet of the oil can. Optionally, the oil can oil inlet pipe 21 is in a bent shape. Optionally, the oil can oil outlet pipe 22 is in a bent shape.
[0077] Optionally, referring to FIG. 6, the connecting pipeline 20 comprises an oil pump oil inlet pipe 23 and an oil pump oil return pipe 24 arranged at intervals, the oil pump oil inlet pipe 23 and the oil pump oil return pipe 24 are arranged on the same side of the timing cover 10, one end of the oil pump oil inlet pipe 23 is opposite to the first section 113, the other end of the oil pump oil inlet pipe 23 is opposite to the inlet of the oil pump, one end of the oil pump oil return pipe 24 is opposite to the third section, the other end of the oil pump oil return pipe 24 is opposite to the outlet of the oil pump. Optionally, the oil pump oil inlet pipe 23 is in a bent shape. Optionally, the oil pump oil return pipe 24 is in a bent shape.
[0078] Optionally, the connecting pipeline 20 further comprises an air outlet pipe 25, one end of the air outlet pipe 25 is opposite to the third channel 14, the other end of the air outlet pipe 25 is opposite to the fifth connecting port 31 of the oil can, the air outlet pipe 25 is used for circulating blow-by gas and guiding the blow-by gas in the oil can back to the crankcase. Optionally, the fifth connecting port 31 is an air outlet. Optionally, the above types of the connecting pipeline 20 are examples and should not be understood as a limitation of the present application, the connecting pipeline 20 can also comprise other types of pipelines.
[0079] Optionally, referring to FIG. 7, the first device 12 and the second device 13 can not be limited to the multi-union oil pump and the oil can, the first device 12 and the second device 13 can also be the crankcase and the water pump, the oil cooler and the temperature regulator, etc.
[0080] Optionally, the connecting pipeline 20 preferably adopts a metal pipe, the metal pipe has strong oil resistance and temperature resistance, and the metal pipe is not easy to deform, the connecting pipeline 20 can also be selected from plastic materials resistant to engine oil and temperature, when the connecting pipeline 20 is selected from stainless steel materials, the low-pressure pipe can be integrated with a corrugated pipe structure, the manufacturing error of the compensation part is compensated, installation is facilitated, the low-pressure pipe also has a certain elasticity, has stronger anti-vibration capability, and is not easy to break.
[0081] Optionally, the first device 12, the second device 13 and the timing cover 10 are arranged close to each other, and the occupied arrangement space is reduced.
[0082] Optionally, the connecting pipeline 20 is arranged in the oil pan and the front end of the timing cover 10, the transverse dimension of the engine can be fully utilized, the height dimension of the engine is reduced, the gravity center of the engine is lowered, and the vehicle handling is improved. Optionally, by matching and adjusting the pipe diameter of the connecting pipeline 20, the demand for the oil passage flow area can be met, the oil passage diameter with a large size is avoided to be arranged on the engine body, and the size of the engine body is reduced. Optionally, the connecting pipeline 20 is designed to facilitate disassembly and maintenance, the oil passage 11 can be arranged according to an optimal route, the number of bends is small, and the responsiveness is improved.
[0083] The embodiment of the present application also provides an engine, comprising an engine body and the timing cover assembly 30 as described above, and the engine body is connected with the timing cover assembly 30.
[0084] Optionally, the engine can be a single-cylinder engine, a double-cylinder engine, a three-cylinder engine, a twelve-cylinder engine, etc.
[0085] The embodiment of the present application further provides a vehicle 50, please refer to Figure 8, comprising the engine as described above.
[0086] Optionally, different vehicle models are limited by the arrangement space of the engine compartment, and the oil tank volumes are inconsistent. By the connection mode of the connecting pipeline 20, different connecting pipelines 20 can be developed to match different vehicle models, the cycle is short and the cost is low, the engine body is avoided to be changed, the universality is improved, and the platformization is facilitated.
[0087] Optionally, the vehicle 50 can be divided into a micro car, a light car, a medium car and a high car according to the displacement of the engine, and the vehicle 50 all has the engine comprising the above embodiment.
[0088] In the description of the embodiment of the present application, it should be explained that the orientation or position relationship of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship of the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0089] The above disclosure is only a preferred embodiment of the present application, and of course cannot limit the scope of the present application, and those skilled in the art can understand that all or part of the processes of the above embodiment are implemented, and equivalent changes made according to the present application still belong to the scope covered by the present application.
Claims
1. A timing cover (10) provided with a passage adapted to communicate a first device (12) and a second device (13), the passage being adapted for the flow of a medium, the first device (12) and the second device (13) being located on the inner and outer sides of the timing cover (10) respectively.
2. The timing cover (10) of claim 1, wherein, The timing cover (10) comprises a main plate and a side plate connected to the edge of the main plate, the main plate comprising a first surface (101) and a second surface (103) arranged oppositely, the side plate comprising a third surface (102) and a fourth surface arranged oppositely, the passage (11) penetrating through the first surface (101) and the second surface (103); and / or, the passage (11) penetrating through the third surface (102) and the fourth surface.
3. The timing cover (10) of claim 1, wherein, The passage (11) comprises a first passage (111) and a second passage (112) arranged at intervals, one end of the first passage (111) being adapted to communicate a first connecting port of the first device (12), the other end of the first passage (111) being adapted to communicate a second connecting port of the second device (13), one end of the second passage (112) being adapted to communicate a third connecting port of the first device (12), the other end of the second passage (112) being adapted to communicate a fourth connecting port of the second device (13).
4. The timing cover (10) according to any one of claims 1-3, wherein, The passage (11) comprises a first section (113) and a second section (114) in communication, the first section (113) and the second section (114) having a first included angle A, the first section (113) being adapted to communicate the first connecting port of the first device (12), the second section (114) being adapted to communicate the second connecting port of the second device (13), or, the first section (113) being adapted to communicate the third connecting port of the first device (12), the second section (114) being adapted to communicate the fourth connecting port of the second device (13).
5. The timing cover (10) of claim 4, wherein, The first included angle A satisfies: 30°≤A≤150°.
6. The timing cover (10) of claim 2, wherein, The timing cover (10) is further provided with a third passage (14), one end of the third passage (14) being adapted to connect a timing cover assembly (30) of the second device (13), the other end of the third passage (14) being in communication with the inner side space of the timing cover (10).
7. The timing cover (10) of claim 6, wherein, The passage (11) further comprises a first passage (111) and a second passage (112) arranged at intervals, one end of the first passage (111) being adapted to communicate a first connecting port of the first device (12), the other end of the first passage (111) being adapted to communicate a second connecting port of the second device (13), one end of the second passage (112) being adapted to communicate a third connecting port of the first device (12), the other end of the second passage (112) being adapted to communicate a fourth connecting port of the second device (13), the third passage (14) being arranged at intervals with the first passage (111) and the second passage (112).
8. The timing cover (10) according to claim 6 or 7, wherein The timing cover (10) further comprises a protrusion protruding from the first surface (101), the protrusion being cylindrical, the third passage (14) being connected with a side wall of the protrusion.
9. A timing cover assembly (30), wherein, The timing cover assembly (30) further comprises a connecting pipe (20), two ends of the passage (11) being connected with the first device (12) and the second device (13) respectively through the connecting pipe (20).
10. The timing cover assembly (30) of claim 9, wherein, The first device (12) is an oil pump; and / or, the second device (13) is an oil can.
11. The timing cover assembly (30) of claim 9 or 10, wherein, 12. An engine comprising an engine body and the timing cover assembly (30) according to any one of claims 9 to 11, the engine body being connected with the timing cover assembly (30), or the timing cover (10) according to any one of claims 1 to 8.
13. A vehicle (50) comprising the engine according to claim 12, or the timing cover assembly (30) according to any one of claims 9 to 11, or the timing cover (10) according to any one of claims 1 to 8.
Citation Information
Patent Citations
Front cover shell of automobile engine
CN103899430A
Engine timing cover and engine with same
CN202789183U
Cover structure for internal combustion engine
CN210768968U
Front cover of internal combustion engine
JP2018168815A
Internal combustion engine
US4977870A