Accessory mounting bracket and engine with oil pressure regulating function

Abstract

The present application relates to an accessory mounting bracket and an engine with an oil pressure regulating function, wherein the outer cylinder body oil passage inside the mounting plate is connected to the oil inlet hole, oil outlet hole and overflow hole on the oil passage connecting structure outside the mounting plate; a pressure limiting valve is installed in the outer cylinder body oil passage to connect or disconnect the oil outlet hole and the outer cylinder body oil passage; after the mounting plate is connected to the front end cylinder block of the engine, it not only provides a mounting position for the accessory; at the same time, since the oil outlet hole is connected to the auxiliary oil passage of the engine cylinder block, the oil inlet hole is connected to the main oil passage; the overflow hole is connected to the cylinder head oil passage and the bearing seat oil passage; at the initial start of the engine, the pressure limiting valve disconnects the oil outlet hole and the outer cylinder body oil passage, and the main oil passage is quickly pressurized to establish the oil pressure from the cylinder block to the cylinder head, reduce the dry friction at the lubrication end, and automatically release the pressure to the auxiliary oil passage after reaching the oil pressure threshold, thereby shortening the oil pressure establishment time and warm-up time, and the effect is more obvious at low temperatures.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle powertrain, and in particular to an accessory mounting bracket and an engine with an oil pressure regulating function. Background Art

[0002] Currently, engine accessories include a tensioner assembly, a generator assembly, a fan pulley support assembly, an idler assembly, etc. The above accessories are installed on the outside of the engine cylinder block. Generally, a corresponding installation area is provided on the outside of the cylinder block. However, due to the different layout positions of different accessories, there is an interference problem during installation, which causes great difficulties in the layout and assembly of different accessories. Some accessories even have rigid brackets, which occupy the installation space and are not limited to the assembly of accessories.

[0003] In other related technologies, the oil pressure needs to be quickly established to the design value at the initial stage of engine start-up. The time required to establish the oil pressure is related to the dry friction at the lubrication end and the warm-up time. In a low-temperature environment, the time for rapid establishment of the oil pressure is more important to the dry friction at the lubrication end and the warm-up time. Therefore, it is necessary to reduce the time for establishing the oil pressure to adapt to the low-temperature starting environment. However, the current oil pressure establishment time does not meet the requirements of the low-temperature starting environment. Summary of the Invention

[0004] The embodiment of the present application provides an accessory mounting bracket and an engine with an oil pressure regulating function to solve the problem in the related art that the time required to build up the oil pressure to the design value at the initial stage of engine starting is difficult to meet the requirements of the engine in a low-temperature starting environment.

[0005] In a first aspect, an accessory mounting bracket with an oil pressure regulating function is provided, comprising:

[0006] A mounting plate is provided with an external oil passageway therein, and the mounting plate includes an accessory connection structure, an oil passage connection structure, and a cylinder connection structure; the oil passage connection structure is provided with an oil inlet hole connected to one end of the external oil passageway, and an oil outlet hole and an overflow hole connected to the other end of the external oil passageway;

[0007] The pressure-limiting valve is installed in the outer oil passage of the cylinder body to connect or disconnect the oil outlet and the outer oil passage. After the mounting plate is connected to the front end of the engine cylinder, it not only provides a mounting location for accessories, but also connects the oil outlet to the auxiliary oil passage of the engine cylinder body, the oil inlet to the main oil passage, and the overflow hole to the cylinder head oil passage and the bearing seat oil passage. At the initial start of the engine, the pressure-limiting valve disconnects the oil outlet and the outer oil passage of the cylinder body, quickly pressurizing the main oil passage, building up oil pressure from the cylinder body to the cylinder head, reducing dry friction at the end of the lubrication. When the oil pressure threshold is reached, the pressure is automatically released to the auxiliary oil passage, thereby shortening the oil pressure build-up time and engine warm-up time. The effect is more obvious at low temperatures.

[0008] In addition, since the oil channel connecting the main oil channel and the auxiliary oil channel in the original engine cylinder is transferred to the outside of the engine cylinder, the length of the cylinder is greatly reduced, and the entire machine is lightweight. The length can be reduced by 30mm, which corresponds to a weight reduction of 18KG.

[0009] In some embodiments, the pressure limiting valve is connected to a pressure relief oil pipe, and one end of the pressure relief oil pipe away from the pressure limiting valve is a connecting end of the auxiliary oil channel in the cylinder body.

[0010] In some embodiments, the oil channel connection structure includes a first protrusion and a second protrusion having a connection plane; the first protrusion is provided with the oil inlet hole, and the second protrusion is provided with an oil outlet hole and an overflow hole;

[0011] The outer oil passage of the cylinder includes a horizontal channel and a bracket overflow channel that are interconnected; the bracket overflow channel is located above the horizontal channel, and its bottom is located between the two ends of the horizontal channel in the length direction; the top of the bracket overflow channel is connected to the overflow hole;

[0012] The oil outlet hole is communicated with the side wall of one end of the horizontal channel, and the oil inlet hole is communicated with the other end of the horizontal channel.

[0013] In some embodiments, the horizontal channel is provided with an oil outlet at one end thereof passing through the mounting plate; the pressure-limiting valve is installed in the channel opening at one end of the horizontal channel passing through the mounting plate; the valve core of the pressure-limiting valve connects the oil outlet and the oil channel outside the cylinder body when in an open state, and disconnects the oil outlet and the oil channel outside the cylinder body when in a non-open state.

[0014] In some embodiments, the accessory connection structure includes a connection ear having a first mounting hole and a plurality of first cylinders having second mounting holes; the central axis of each first cylinder is in the same direction as the thickness of the mounting plate, and reinforcing ribs are provided between the plurality of first cylinders.

[0015] In some embodiments, among the plurality of first cylinders, the first cylinder located in the middle of the mounting plate and above the horizontal channel is used to connect to the fan pulley support assembly;

[0016] Among the plurality of first cylinders, a first cylinder is provided at one of the upper corners on the outer periphery of the mounting plate, and the first cylinder is used to connect to the generator assembly; the remaining first cylinders are located in the middle of the mounting plate and above the horizontal channel, and the remaining first cylinders are used to connect to the fan pulley support assembly;

[0017] The connecting lug is arranged on another upper corner of the outer periphery of the mounting plate, and the connecting lug is used to connect the tensioning wheel assembly.

[0018] In some embodiments, the cylinder connection structure includes a third mounting hole and a second cylinder having a fourth mounting hole; the third mounting hole is arranged on the outer periphery of the bottom of the mounting plate; the second cylinder is arranged in the middle of the mounting plate and is connected to the outer sides of multiple first cylinders through reinforcing ribs.

[0019] In some embodiments, the mounting plate, the accessory connection structure, and the oil channel connection structure are integrally manufactured from aluminum alloy.

[0020] In a second aspect, an engine is provided, comprising:

[0021] Accessory mounting bracket with oil pressure regulation function;

[0022] The engine cylinder block is provided with a bracket connection hole, a main oil channel, an auxiliary oil channel, and a cylinder overflow channel; the cylinder overflow channel is connected to the cylinder head oil channel and the bearing seat oil channel of the engine cylinder block;

[0023] The oil inlet of the accessory mounting bracket with oil pressure regulating function is connected to the main oil channel; the oil outlet of the accessory mounting bracket with oil pressure regulating function is connected to the auxiliary oil channel; the overflow hole of the accessory mounting bracket with oil pressure regulating function is connected to the cylinder overflow channel;

[0024] The control device is connected to the pressure limiting valve. The above structure illustrates that this accessory mounting bracket with oil pressure regulation function can provide a mounting location for the fan pulley support assembly, generator assembly, and tensioner assembly. It can also provide a seismic isolation effect to avoid being affected by the vibration of the engine cylinder block, and the layout is reasonable, making it easy to install without interference.

[0025] In some embodiments, the engine cylinder body is provided with a pressure relief channel connected to the auxiliary oil channel;

[0026] The pressure limiting valve is connected to a pressure relief oil pipe, and one end of the pressure relief oil pipe away from the pressure limiting valve is a connecting end of the auxiliary oil passage in the cylinder body; the connecting end of the auxiliary oil passage in the cylinder body is connected to the pressure relief channel.

[0027] The beneficial effects of the technical solution provided by this application include:

[0028] The embodiment of the present application provides an accessory mounting bracket and an engine with an oil pressure regulating function. Since the outer cylinder body oil passage inside the mounting plate is connected to the oil inlet hole, oil outlet hole and overflow hole on the oil passage connecting structure outside the mounting plate; the pressure limiting valve is installed in the outer cylinder body oil passage to connect or disconnect the oil outlet hole and the outer cylinder body oil passage; after the mounting plate is connected to the front end cylinder block of the engine, it not only provides a mounting position for the accessory; at the same time, since the oil outlet hole is connected to the auxiliary oil passage of the engine cylinder block, the oil inlet hole is connected to the main oil passage; the overflow hole is connected to the cylinder head oil passage and the bearing seat oil passage; at the initial start of the engine, the pressure limiting valve disconnects the oil outlet hole and the outer cylinder body oil passage, and the main oil passage is quickly pressurized to establish the oil pressure from the cylinder block to the cylinder head, reduce the dry friction at the lubrication end, and automatically release the pressure to the auxiliary oil passage after reaching the oil pressure threshold, thereby shortening the oil pressure establishment time and warm-up time, and the effect is more obvious at low temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] Figure 1 A schematic diagram of the structure of one side of an accessory mounting bracket with an oil pressure regulating function provided by an embodiment of the present application;

[0031] Figure 2 A schematic structural diagram of one side of an accessory mounting bracket with an oil pressure regulating function provided in an embodiment of the present application for connection to an engine cylinder block;

[0032] Figure 3 Provided in the embodiments of this application Figure 1 Front view of

[0033] Figure 4 Provided in the embodiments of this application Figure 3 Schematic diagram of the cross section in the AA direction;

[0034] Figure 5 Provided in the embodiments of this application Figure 3 Schematic cross-section in the middle BB direction;

[0035] Figure 6 A schematic diagram of the structure of an accessory mounting bracket with an oil pressure regulating function provided in an embodiment of the present application installed on an engine cylinder block;

[0036] Figure 7 A schematic diagram showing the connection between the main oil passage and the auxiliary oil passage in the engine cylinder and the oil passage outside the cylinder provided by an embodiment of the present application;

[0037] Figure 8 A schematic diagram showing that the cylinder head oil passage and the bearing seat oil passage in the engine cylinder body provided by an embodiment of the present application are connected to the overflow hole;

[0038] Figure 9 The lubrication principle diagram of the whole machine provided in the embodiment of this application;

[0039] Figure 10 A logic block diagram for controlling the pressure-limiting valve provided in an embodiment of the present application;

[0040] Figure 11 Schematic diagram of installing an accessory on an accessory mounting bracket with oil pressure regulation function provided in an embodiment of the present application.

[0041] In the figure: 1. Mounting plate; 100. Accessory connection structure; 101. Oil channel connection structure; 1011. First protrusion; 1012. Second protrusion; 102. Cylinder block connection structure; 103. Connecting lug; 2. External oil channel of cylinder body; 200. Horizontal channel; 201. Bracket overflow channel; 3. Oil inlet hole; 4. Oil outlet hole; 5. Overflow hole; 6. Pressure limiting valve; 7. Pressure relief oil pipe; 8. Fan pulley support assembly; 9. Generator assembly; 10. Tensioner assembly; 11. Engine block; 12. Auxiliary oil channel; 13. Cylinder block overflow channel; 14. Main oil channel; 15. Cylinder head oil channel; 16. Bearing seat oil channel. DETAILED DESCRIPTION

[0042] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] The engine accessories include the tensioner assembly, generator assembly, fan pulley support assembly, idler assembly, etc. The above accessories are installed on the outside of the engine cylinder block. Generally, a corresponding installation area is provided on the outside of the cylinder block. However, due to the different layout positions of different accessories, there are interference problems during installation, which causes great difficulties in the layout and assembly of different accessories. Some accessories even have rigid brackets, which occupy the installation space and are not limited to the assembly of accessories.

[0044] In other related technologies, the oil pressure needs to be quickly established to the design value at the initial stage of engine start-up. The time required to establish the oil pressure is related to the dry friction at the lubrication end and the warm-up time. In a low-temperature environment, the time for rapid establishment of the oil pressure is more important to the dry friction at the lubrication end and the warm-up time. Therefore, it is necessary to reduce the time for establishing the oil pressure to adapt to the low-temperature starting environment. However, the current oil pressure establishment time does not meet the requirements of the low-temperature starting environment.

[0045] Therefore, in order to solve the above two problems, an accessory mounting bracket and an engine with oil pressure regulating function are proposed.

[0046] See also Figure 1-Figure 5 In a first aspect, an accessory mounting bracket with an oil pressure regulating function is proposed, comprising:

[0047] A mounting plate 1 is provided with an external oil passage 2 therein. The mounting plate 1 includes an accessory connection structure 100, an oil passage connection structure 101, and a cylinder connection structure 102. The oil passage connection structure 101 is provided with an oil inlet hole 3 connected to one end of the external oil passage 2, an oil outlet hole 4 connected to the other end of the external oil passage 2, and an overflow hole 5;

[0048] The pressure limiting valve 6 is installed in the outer oil passage 2 of the cylinder body to connect or disconnect the oil outlet hole 4 and the outer oil passage 2 of the cylinder body. The pressure limiting valve 6 is a PCJ solenoid valve.

[0049] The above structural settings have the following effects:

[0050] After the mounting plate 1 is connected to the front end cylinder block of the engine, it not only provides a mounting position for accessories; at the same time, since the oil outlet hole 4 is connected to the auxiliary oil channel 12 of the engine cylinder block, the oil inlet hole 3 is connected to the main oil channel 14; the overflow hole 5 is connected to the cylinder head oil channel 15 and the bearing seat oil channel 16; at the initial start of the engine, the pressure limiting valve 6 disconnects the oil outlet hole 4 and the oil channel 2 outside the cylinder body, and the main oil channel 14 is quickly pressurized to establish the oil pressure from the cylinder block to the cylinder head, reducing dry friction at the lubrication end, and automatically releases pressure to the auxiliary oil channel 12 after reaching the oil pressure threshold, thereby shortening the oil pressure establishment time and warm-up time, and the effect is more obvious at low temperatures.

[0051] In addition, since the oil channel connecting the main oil channel 14 and the auxiliary oil channel 12 in the original engine cylinder is transferred to the outside of the engine cylinder, the length of the cylinder is greatly reduced, and the entire machine is lightweight, which can reduce the length by 30mm, corresponding to a weight reduction of 18KG.

[0052] In some preferred embodiments, the above only implements the relevant solutions for quickly building up oil pressure. After the oil pressure is built up, there are also the following settings for how to release the pressure:

[0053] The pressure limiting valve 6 is connected to a pressure relief oil pipe 7, and the end of the pressure relief oil pipe 7 away from the pressure limiting valve 6 is the auxiliary oil channel connection end in the cylinder body; the pressure relief oil pipe 7 is located outside the engine cylinder body; after the pressure limiting valve 6 opens to relieve pressure, the pressure is released through the pressure relief oil pipe 7 and flows back to the auxiliary oil channel 12.

[0054] refer to Figure 3 、 Figure 4 and Figure 5 In some preferred embodiments, in order to introduce in detail the connection between the oil channel connection structure 101 and the external oil channel 2 of the cylinder body, the following description is provided:

[0055] The oil channel connection structure 101 includes a first protrusion 1011 and a second protrusion 1012 having a connection plane; the first protrusion 1011 is provided with an oil inlet hole 3, and the second protrusion 1012 is provided with an oil outlet hole 4 and an overflow hole 5;

[0056] The outer oil passage 2 of the cylinder body includes a horizontal channel 200 and a bracket overflow channel 201, which are interconnected. The bracket overflow channel 201 is located above the horizontal channel 200, and its bottom is located between the two ends of the horizontal channel 200 in the longitudinal direction. The top of the bracket overflow channel 201 is connected to the overflow hole 5.

[0057] The oil outlet hole 4 is communicated with the side wall of one end of the horizontal channel 200 , and the oil inlet hole 3 is communicated with the other end of the horizontal channel 200 .

[0058] The horizontal channel 200 is provided with an oil outlet hole 4 at one end thereof, through which a mounting plate 1 is passed; the pressure-limiting valve 6 is installed in the channel opening at one end of the horizontal channel 200 through which the mounting plate 1 is passed; the valve core of the pressure-limiting valve 6 connects the oil outlet hole 4 with the oil passage 2 outside the cylinder body when the valve core is in the open state, and disconnects the oil outlet hole 4 with the oil passage 2 outside the cylinder body when the valve core of the pressure-limiting valve 6 is in the closed state.

[0059] As explained above, when pressure-limiting valve 6 is closed, the pressurized oil flows through overflow hole 5 into the cylinder head oil passages and bearing seat oil passages, flowing upward under high pressure to the cylinder head main bearing seat, achieving top-level lubrication and reducing dry friction at the end of the lubrication process. This shortens the oil pressure buildup time by 3-4 seconds compared to models without a pressure-limiting valve, with the effect being more pronounced at low temperatures. This reduces warm-up time and improves combustion efficiency.

[0060] In some preferred embodiments, to provide mounting locations for multiple accessories and to meet the requirements for the placement of some accessories requiring a rigid bracket, the following arrangements are available:

[0061] The accessory connection structure 100 includes a connection lug 103 with a first mounting hole and a plurality of first cylinders with second mounting holes; the central axis of each first cylinder is in the same direction as the thickness of the mounting plate 1, and reinforcing ribs are provided between the plurality of first cylinders.

[0062] Among the multiple first cylinders, the first cylinder located in the middle of the mounting plate 1 and above the horizontal channel 200 is used to connect the fan pulley support assembly 8;

[0063] Among the multiple first cylinders, one is located at one of the upper corners of the outer periphery of the mounting plate 1 and is used to connect to the generator assembly 9; the remaining first cylinders are located in the middle of the mounting plate 1 and above the horizontal channel 200 and are used to connect to the fan pulley support assembly 8;

[0064] The connecting lug 103 is provided on another upper corner of the outer periphery of the mounting plate 1 , and the connecting lug 103 is used to connect to the tensioning wheel assembly 10 .

[0065] The above structure illustrates that the accessory mounting bracket with oil pressure regulating function can provide an installation position for the fan pulley support assembly 8, the generator assembly 9, and the tensioner assembly 10. At the same time, it can have a shock-isolating effect to avoid being affected by the vibration of the engine cylinder block, and the layout is reasonable, which is convenient for installation without interference.

[0066] In addition, reference Figure 6 The cylinder connection structure 102 includes a third mounting hole and a second cylinder with a fourth mounting hole; the third mounting hole is arranged on the outer periphery of the bottom of the mounting plate 1; the second cylinder is arranged in the middle of the mounting plate 1 and is connected to the outer sides of multiple first cylinders through reinforcing ribs.

[0067] The above introduces how the accessory mounting bracket with oil pressure regulating function is connected to the engine cylinder block. After the accessory mounting bracket with oil pressure regulating function is installed and the position for accessory installation is provided, the connection processing requirements for the outside of the engine cylinder block can be appropriately reduced.

[0068] In some preferred embodiments, the mounting plate 1, the accessory connection structure 100, and the oil passage connection structure 101 are integrally manufactured from aluminum alloy. Specifically, the accessory mounting bracket, which also functions as an oil pressure regulator, is formed from A380 aluminum ingots through high-pressure casting, with an internally cast oil passage and a pressure-limiting valve installed at the auxiliary oil passage 12. The bracket is mounted to the front end of the engine block, secured with bolts and sealed with an O-ring to connect to the third mounting hole and the second cylinder having the fourth mounting hole. Other accessory assemblies are connected to the first cylinder connection lug 103 via bolts. The above aluminum ingot high-pressure casting facilitates processing and reduces weight. Furthermore, the reinforcing ribs between the first cylinders and between the second cylinder and the plurality of first cylinders can enhance the overall structural strength and meet usage requirements.

[0069] refer to Figure 6-Figure 8 In a second aspect, an engine is provided, comprising:

[0070] Accessory mounting bracket with oil pressure regulation function;

[0071] The engine cylinder block 11 is provided with a bracket connection hole, a main oil channel 14, an auxiliary oil channel 12, and a cylinder overflow channel 13; the cylinder overflow channel 13 is connected to the cylinder head oil channel 15 and the bearing seat oil channel 16 of the engine cylinder block 11;

[0072] The oil inlet hole 3 of the accessory mounting bracket with oil pressure regulating function is connected to the main oil channel 14; the oil outlet hole 4 of the accessory mounting bracket with oil pressure regulating function is connected to the auxiliary oil channel 12; the overflow hole 5 of the accessory mounting bracket with oil pressure regulating function is connected to the cylinder overflow channel 13;

[0073] The control device is connected to the pressure limiting valve 6. The control logic of the control device can be referred to Figure 10 The process shown; the control device can be a vehicle-mounted chip or ECU; the oil pressure data is obtained through a pressure sensor, which will not be explained in detail here. Obtaining the pressure value is a common technical means.

[0074] After the mounting plate 1 is connected to the front end cylinder block of the engine, it not only provides a mounting position for accessories; at the same time, since the oil outlet hole 4 is connected to the auxiliary oil channel 12 of the engine cylinder block, the oil inlet hole 3 is connected to the main oil channel 14; the overflow hole 5 is connected to the cylinder head oil channel 15 and the bearing seat oil channel 16; at the initial start of the engine, the pressure limiting valve 6 disconnects the oil outlet hole 4 and the oil channel 2 outside the cylinder body, and the main oil channel 14 is quickly pressurized to establish the oil pressure from the cylinder block to the cylinder head, reducing dry friction at the lubrication end, and the control device automatically releases the pressure to the auxiliary oil channel 12 after detecting that the oil pressure threshold has been reached, thereby shortening the oil pressure establishment time and the warm-up time, and the effect is more obvious at low temperatures.

[0075] For the lubrication principle diagram of the engine of this application, please refer to the attached Figure 9 I won’t go into too much detail here. Figure 11 The schematic diagram of installing accessories on the accessory mounting bracket with oil pressure regulation function provided in the embodiment of the present application intuitively shows the installation status of multiple accessories.

[0076] In addition, since the oil channel connecting the main oil channel 14 and the auxiliary oil channel 12 in the original engine cylinder is transferred to the outside of the engine cylinder, the length of the cylinder is greatly reduced, and the entire machine is lightweight, which can reduce the length by 30mm, corresponding to a weight reduction of 18KG.

[0077] In some preferred embodiments, the above only implements the relevant solutions for quickly building up oil pressure. After the oil pressure is built up, there are also the following settings for how to release the pressure:

[0078] The engine cylinder block 11 is provided with a pressure relief passage communicating with the auxiliary oil passage 12;

[0079] The pressure limiting valve 6 is connected to a pressure relief oil pipe 7 , and one end of the pressure relief oil pipe 7 away from the pressure limiting valve 6 is a connecting end of the auxiliary oil passage in the cylinder body; the connecting end of the auxiliary oil passage in the cylinder body is connected to the pressure relief channel.

[0080] In summary, the accessory mounting bracket with oil pressure regulating function has a built-in oil channel outside the cylinder body connecting the main and auxiliary oil channels of the cylinder body, shortening the length of the cylinder body. It is made of aluminum alloy, and the overall solution is lightweight; the accessory mounting bracket with oil pressure regulating function has an integrated pressure limiting valve (PCJ valve or electronic pressure limiting valve) to achieve main oil channel oil pressure regulation, and quickly establish the oil pressure of the whole machine; it is installed at the front end of the cylinder body, and mainly acts at the initial stage of engine starting. The opening pressure of the PCJ pressure limiting valve ensures that the whole machine quickly establishes oil pressure, reduces dry friction at the lubrication end, and achieves short-term warm-up and improved combustion efficiency.

[0081] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0082] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0083] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. An accessory mounting bracket with oil pressure regulating function, characterized in that: It includes: The mounting plate (1) is provided with an external oil passage (2) therein, and the mounting plate (1) includes an accessory connection structure (100), an oil passage connection structure (101) and a cylinder connection structure (102); the oil passage connection structure (101) is provided with an oil inlet hole (3) communicating with one end of the external oil passage (2) and an oil outlet hole (4) and an overflow hole (5) communicating with the other end of the external oil passage (2); the oil inlet hole (3) is used to communicate with a main oil passage (14) of an engine cylinder (11); the oil outlet hole (4) is used to communicate with a secondary oil passage (12) of the engine cylinder (11); and the overflow hole (5) is used to communicate with a cylinder overflow passage (13) of the engine cylinder (11); A pressure limiting valve (6) is installed in the outer oil passage (2) of the cylinder body to connect or disconnect the oil outlet hole (4) and the outer oil passage (2) of the cylinder body; the pressure limiting valve (6) is connected to a pressure relief oil pipe (7), and the end of the pressure relief oil pipe (7) away from the pressure limiting valve (6) is a connection end of the auxiliary oil passage in the cylinder body.

2. The accessory mounting bracket with oil pressure regulating function according to claim 1, characterized in that: The oil channel connection structure (101) comprises a first protrusion (1011) and a second protrusion (1012) having a connection plane; the first protrusion (1011) is provided with the oil inlet hole (3), and the second protrusion (1012) is provided with an oil outlet hole (4) and an overflow hole (5); The cylinder body oil passage (2) comprises a horizontal channel (200) and a bracket overflow channel (201) that are interconnected; the bracket overflow channel (201) is located above the horizontal channel (200), and its bottom is located between the two ends of the horizontal channel (200) in the length direction; the top of the bracket overflow channel (201) is connected to the overflow hole (5); The oil outlet hole (4) is in communication with the side wall of one end of the horizontal channel (200), and the oil inlet hole (3) is in communication with the other end of the horizontal channel (200).

3. The accessory mounting bracket with oil pressure regulating function according to claim 2, characterized in that: The horizontal channel (200) is provided with an oil outlet hole (4) at one end thereof penetrating the mounting plate (1); the pressure-limiting valve (6) is installed in the channel opening of the horizontal channel (200) penetrating the mounting plate (1); the valve core of the pressure-limiting valve (6) connects the oil outlet hole (4) with the external oil passage (2) of the cylinder body in an open state, and disconnects the oil outlet hole (4) from the external oil passage (2) of the cylinder body in a closed state.

4. The accessory mounting bracket with oil pressure regulating function according to claim 2, characterized in that: The accessory connection structure (100) comprises a connection lug (103) having a first mounting hole and a plurality of first cylinders having second mounting holes; the central axis of each first cylinder is in the same direction as the thickness of the mounting plate (1), and reinforcing ribs are provided between the plurality of first cylinders.

5. The accessory mounting bracket with oil pressure regulating function according to claim 4, characterized in that: Among the plurality of first cylinders, the first cylinder located in the middle of the mounting plate (1) and above the horizontal channel (200) is used to connect the fan pulley support assembly (8); Among the plurality of first cylinders, a first cylinder is provided at one of the upper corners of the outer periphery of the mounting plate (1), and the first cylinder is used to connect to the generator assembly (9); the remaining first cylinders are located in the middle of the mounting plate (1) and above the horizontal channel (200), and the remaining first cylinders are used to connect to the fan pulley support assembly (8); The connecting lug (103) is arranged on another upper corner of the outer periphery of the mounting plate (1), and the connecting lug (103) is used to connect the tensioning wheel assembly (10).

6. The accessory mounting bracket with oil pressure regulating function according to claim 5, characterized in that: The cylinder connection structure (102) comprises a third mounting hole and a second cylinder having a fourth mounting hole; the third mounting hole is arranged on the outer periphery of the bottom of the mounting plate (1); the second cylinder is arranged in the middle of the mounting plate (1) and is connected to the outer sides of the plurality of first cylinders via reinforcing ribs.

7. The accessory mounting bracket with oil pressure regulating function according to claim 1, characterized in that: The mounting plate (1), the accessory connection structure (100), and the oil channel connection structure (101) are integrally manufactured from an aluminum alloy material.

8. An engine, characterized in that: It includes: The accessory mounting bracket with oil pressure regulating function according to any one of claims 1 to 7; An engine cylinder block (11) is provided with a bracket connection hole, a main oil channel (14), an auxiliary oil channel (12), and a cylinder overflow channel (13); the cylinder overflow channel (13) is communicated with a cylinder head oil channel (15) and a bearing seat oil channel (16) of the engine cylinder block (11); The oil inlet hole (3) of the accessory mounting bracket with oil pressure regulating function is communicated with the main oil channel (14); the oil outlet hole (4) of the accessory mounting bracket with oil pressure regulating function is communicated with the auxiliary oil channel (12); the overflow hole (5) of the accessory mounting bracket with oil pressure regulating function is communicated with the cylinder overflow channel (13); A control device is connected to the pressure limiting valve (6).

9. The engine according to claim 8, wherein: The engine cylinder (11) is provided with a pressure relief channel connected to the auxiliary oil channel (12); The pressure limiting valve (6) is connected to a pressure relief oil pipe (7), and one end of the pressure relief oil pipe (7) away from the pressure limiting valve (6) is a connecting end of the auxiliary oil passage in the cylinder body; the connecting end of the auxiliary oil passage in the cylinder body is connected to the pressure relief channel.

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