Supercharger support, supercharger assembly, engine and design method and machining method of supercharger support

Abstract

The invention provides a supercharger support, a supercharger assembly, an engine and a design method and a machining method of the supercharger support. The supercharger support comprises an oil return hole section used as a flow channel for outputting lubricating oil from a supercharger; the oil inlet hole section is used as a flow channel for inputting lubricating oil into the supercharger; wherein a designed inclination angle alpha is formed between the oil return hole section and the base plane, so that the horizontal position of the outlet end of the oil return hole section is lower than that of the inlet end of the oil return hole section; at least one of the oil return bore sections extends in a direction perpendicular to the first axis and satisfies: # imgabs 0 # and / or at least one of the oil return bore sections extends in a direction perpendicular to the second axis and satisfies: # imgabs 1 #

Description

Technical Field

[0001] The present application relates to a supercharger bracket, a supercharger assembly, an engine and a design method and a processing method of the supercharger bracket. Background Art

[0002] Turbocharging technology is an effective technical means to increase engine power, reduce fuel consumption and emissions. Generally, the supercharger is designed with a lubricating oil system to provide lubrication and cooling during operation. As the engine is developing towards a compact structure, some supercharger brackets not only bear the function of supporting the supercharger, but also bear the function of transporting the lubricating oil inlet and return. Supercharger brackets with integrated inlet and return oil channels have been widely used on various types of engines.

[0003] However, the inventors of the present application have discovered that the technical problems currently existing in the art include, but are not limited to: some engines may tilt during operation, for example, a marine engine may tilt with the hull, which may cause a problem of poor oil return inside the supercharger bracket; and, in some schemes, since the temperature on one side (the turbine end) of the turbine of the supercharger is extremely high during operation, there is a risk of fire in the oil inlet and return channels inside the supercharger bracket.

[0004] In view of this, the inventors have proposed a design method and a processing method of a supercharger bracket, a supercharger assembly, an engine and a supercharger bracket after in-depth research, so as to at least partially solve the above technical problems. Summary of the invention

[0005] The purpose of this application is to provide a supercharger bracket.

[0006] Another object of the present application is to provide a supercharger assembly.

[0007] Another object of the present application is to provide an engine.

[0008] Another object of the present application is to provide a design method for a supercharger bracket.

[0009] Another object of the present application is to provide a method for processing a supercharger bracket.

[0010] According to one aspect of the present application, a supercharger bracket comprises: an oil return hole section, which is used as a flow channel for outputting lubricating oil from the supercharger; and an oil inlet hole section, which is used as a flow channel for inputting lubricating oil into the supercharger; wherein the oil return hole section has a designed inclination angle α with a base plane, so that the inlet end of the oil return hole section is higher than the horizontal position of the outlet end; the base plane is defined by a first axis and a second axis that are perpendicular to each other, and the base plane is parallel to the horizontal plane when the supercharger bracket is in an initial position;

[0011] At least one of the oil return hole sections extends in a direction perpendicular to the first axis and satisfies: and / or,

[0012] At least one of the oil return hole sections extends in a direction perpendicular to the second axis and satisfies:

[0013] In the formula, the critical oil return inclination angle β is the threshold value of the angle between the oil return hole section and the horizontal plane; the critical pitch angle γ is the threshold value of the rotation of the supercharger bracket around the first axis; and the critical roll angle θ is the threshold value of the rotation of the supercharger bracket around the second axis.

[0014] The principle of the above technical solution to achieve the improved effect is that: according to the working condition that the supercharger bracket is tilted, that is, the supercharger bracket rotates around the first axis and the second axis, the oil return hole section is correspondingly limited to have a certain size of the designed inclination angle α; such a design makes the inlet end of the oil return hole section higher than the horizontal position of the outlet end, and even under the condition that the supercharger bracket is tilted, the oil return hole section can still maintain a certain slope with the horizontal plane, so that the lubricating oil can continue to flow under the action of gravity, and smooth oil return transportation is achieved, which effectively avoids the problem of poor oil return inside the supercharger bracket under tilted working conditions, and improves the safety and reliability of engine operation.

[0015] In one or more embodiments of the supercharger bracket, the supercharger bracket is used for a ship; at least one of the oil return hole sections extends in a direction perpendicular to the first axis and satisfies α≥11°; the direction of the first axis is the direction between the two sides of the ship.

[0016] In one or more embodiments of the supercharger bracket, the supercharger bracket is used for a ship; at least one of the oil return hole sections extends in a direction perpendicular to the second axis and satisfies α≥20.5°; the direction of the second axis is the direction between the bow and stern of the ship.

[0017] In one or more embodiments of the supercharger bracket, at least one of the oil return hole sections extends in the direction between the vortex end and the pressure end of the supercharger, and / or at least one of the oil inlet hole sections extends in the direction between the vortex end and the pressure end of the supercharger, so that the lubricating oil flows in the direction away from the vortex end.

[0018] In one or more embodiments of the supercharger bracket, the supercharger bracket further includes: a first end surface, provided with a pipeline end oil return port; an angle between the first end surface and the base plane is the complementary angle of the designed inclination angle α, and the oil return hole section extends from the oil return port of the pipeline end along a direction perpendicular to the first end surface.

[0019] In one or more embodiments of the supercharger bracket, the supercharger bracket further comprises: a process hole extending inward from a surface of the supercharger bracket to provide a working space for machining the oil return hole section or the oil inlet hole section.

[0020] According to a second aspect of the present application, a supercharger assembly comprises a supercharger and the supercharger bracket described in the above embodiment; the supercharger is connected to the supercharger bracket and is installed at a corresponding installation position of the supercharger through the supercharger bracket.

[0021] An engine according to a third aspect of the present application comprises the supercharger assembly described in the above embodiment.

[0022] According to a fourth aspect of the present application, a method for designing a supercharger bracket is provided, wherein the supercharger bracket is the supercharger bracket described in the above embodiment, and the method for designing the supercharger bracket comprises:

[0023] Set the critical oil return angle β;

[0024] Set the critical pitch angle γ;

[0025] Set the critical heel angle θ;

[0026] Set the extension direction of the oil return hole section;

[0027] If the extension direction of the oil return hole section is set to extend in a direction perpendicular to the first axis, the oil return hole section is set to have a designed inclination angle

[0028] If the extension direction of the oil return hole section is set to extend in a direction perpendicular to the second axis, the oil return hole section is set to have a designed inclination angle

[0029] Among them, there is a designed inclination angle α between the oil return hole section and the base plane, so that the inlet end of the oil return hole section is higher than the horizontal position of the outlet end; the base plane is defined by the first axis and the second axis that are perpendicular to each other, and the base plane is parallel to the horizontal plane when the supercharger bracket is in the initial position; the critical oil return inclination angle β is the threshold value of the angle between the oil return hole section and the horizontal plane; the critical longitudinal inclination angle γ is the threshold value of the rotation of the supercharger bracket around the first axis; the critical transverse inclination angle θ is the threshold value of the rotation of the supercharger bracket around the second axis.

[0030] According to a fifth aspect of the present application, a method for processing a supercharger bracket is provided, wherein the supercharger bracket is the supercharger bracket described in the above embodiment, and the processing method comprises:

[0031] Processing a first end surface, wherein the first end surface and the base plane have an included angle The oil return hole section is formed by vertically punching a hole on the first end surface, which is the complementary angle of the designed inclination angle α. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and other features, properties and advantages of the present application will become more apparent through the following description in conjunction with the accompanying drawings and embodiments. In the accompanying drawings, the same reference numerals always represent the same features. It should be noted that these drawings are only examples and are not drawn in proportion. They should not be used as a limitation on the actual scope of protection claimed by the present application, wherein:

[0033] Figure 1 The figure is a schematic diagram of the assembly of a supercharger assembly according to an embodiment.

[0034] Figure 2 Schematic diagram of the structure of a supercharger bracket according to an embodiment.

[0035] Figure 3 for Figure 2 A side view of the supercharger bracket is shown.

[0036] Figure 4 for Figure 2 A schematic cross-sectional view of a supercharger bracket is shown.

[0037] Figure 5 The figure is a schematic diagram of the assembly of a supercharger assembly according to an embodiment.

[0038] Figure 6 Schematic diagram of the structure of a supercharger bracket according to an embodiment.

[0039] Figure 7 for Figure 6 A side view of the supercharger bracket is shown.

[0040] Figure 8 for Figure 6 A schematic cross-sectional view of a supercharger bracket is shown.

[0041] Fig. 9 The present invention is a schematic flow chart of a design method of a supercharger bracket according to an embodiment.

[0042] Fig.10 The figure is a schematic flow chart of a method for processing a supercharger bracket according to an embodiment.

[0043] Description of reference numerals:

[0044] 1. Supercharger assembly;

[0045] 100. Supercharger bracket; 101. Oil return hole section; 102. Oil inlet hole section; 103. First end surface; 104. Second end surface; 105. Oil return port at pipeline end; 106. Oil inlet at pipeline end; 107. Oil return port at supercharger end; 108. Oil inlet at supercharger end; 109. Process hole; 110. Connection structure; 111. Intermediate structure; 112. Mounting structure; 113. Inclined structure;

[0046] 20. Supercharger; 21. Turbine; 22. Compressor;

[0047] x. first axis; y. second axis; z. third axis. DETAILED DESCRIPTION

[0048] Reference will now be made in detail to the various embodiments of the application, the examples of which are shown in the accompanying drawings and are described below. Although the application will be described in conjunction with the exemplary embodiments, it should be appreciated that this specification is not intended to limit the application to those exemplary embodiments. On the contrary, the application is intended to not only cover these exemplary embodiments, but also to cover various alternative forms, modified forms, equivalent forms and other embodiments that may be included in the spirit and scope of the application defined by the appended claims.

[0049] The present application uses specific words to describe the embodiments of the present application. For example, "one embodiment" and / or "an embodiment" means a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0050] This application uses flowcharts to illustrate the operations performed according to the embodiments of this application. It can be understood that, according to actual conditions, the operations do not necessarily have to be performed in the order of the steps shown in the diagram, other operations can be added to these processes, or one or more operations can be removed from these processes.

[0051] In the following description, the orientation or positional relationship indicated by "upper", "lower", "front", "back", "inside", "outside" or other directional terms is based on the orientation or positional relationship shown in 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 component referred to must have a specific orientation, be constructed and / or implemented in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0052] To facilitate the description of the present application, a first axis, a second axis, and a third axis that are perpendicular to each other are defined and are respectively shown as the x-axis, the y-axis, and the z-axis in the accompanying drawings. A base plane is also determined based on the first axis (x-axis) and the second axis (y-axis).

[0053] In the following description, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense; for example: it can be a fixed connection or a movable connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be the connection between two elements or parts, etc. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0054] It can be understood that the supercharger bracket, supercharger assembly and engine provided in the present application are particularly suitable for ships, but are not limited thereto, and can also be applied to any other applicable occasions, such as automobiles, engineering machinery, etc.

[0055] refer to Figures 1 to 8 As shown, the present application provides a supercharger bracket 100, which includes: an oil return hole section 101, used to output lubricating oil from the supercharger 20; an oil inlet hole section 102, used to input lubricating oil into the supercharger 20; wherein, the oil return hole section 101 has a designed inclination angle α with the base plane, so that the inlet end of the oil return hole section is higher than the horizontal position of the outlet end; the base plane is defined by the first axis (that is, the x-axis shown in the figure) and the second axis (that is, the y-axis shown in the figure) which are perpendicular to each other, and the base plane is parallel to the horizontal plane when the supercharger bracket 100 is in the initial position; the inlet end and the outlet end of the oil return hole section 101 respectively refer to an end where the lubricating oil flows in and out of the oil return hole section 101 during the process of transporting return oil from the supercharger to the return oil pipeline, that is, the lubricating oil flows from the inlet end to the outlet end during the return oil transport.

[0056] like Figure 4 , Figure 8 As shown, at least one of the oil return hole sections 101 extends in a direction perpendicular to the first axis and satisfies: and / or,

[0057] At least one of the oil return hole sections 101 extends in a direction perpendicular to the second axis and satisfies:

[0058] In the formula, the critical oil return inclination angle β is the threshold of the angle between the oil return hole section 101 and the horizontal plane; the critical pitch angle γ is the threshold of the rotation of the supercharger bracket 100 around the first axis; and the critical roll angle θ is the threshold of the rotation of the supercharger bracket 100 around the second axis.

[0059] like Figure 2 , Figure 6 As shown, specifically, the oil inlet hole section 102 forms a channel inside the supercharger bracket 100, connecting the oil inlet pipeline (not shown) of the lubricating oil with the supercharger 20, so as to input the lubricating oil to the supercharger 20; the oil return hole section 101 forms a channel inside the supercharger bracket 100, connecting the oil return pipeline of the lubricating oil with the supercharger 20, so as to output the lubricating oil from the supercharger 20; the initial position of the supercharger bracket 100 refers to the position where the rotation angles of the supercharger bracket 100 around the first axis and the second axis are both zero. For example, for the supercharger bracket 100 for ships, the initial position is the position of the supercharger bracket 100 when the ship is in a positive floating state; the critical oil return inclination angle β, ... The critical trim angle γ and the critical roll angle θ can be set according to actual needs, including but not limited to the actual use conditions of the supercharger 20, safety design requirements, etc.; for example, when the supercharger bracket 100 adopts a solution that relies solely on gravity to return oil, a relatively large critical oil return angle β is generally set as needed to ensure the realization of the basic oil return and transportation function; and when the supercharger bracket 100 adopts a pressurized oil return solution, a relatively small or zero critical oil return angle β can be set, which is beneficial to reducing the height size of the supercharger bracket 100 and the engine as a whole, making the structure compact; optionally, for the supercharger bracket 100 for ships, the critical trim angle γ and the critical roll angle θ are determined according to the amplitude of the pitch and roll of the hull.

[0060] By designing the oil return hole section 101 to have a certain designed inclination angle α with the base plane, the inlet end of the oil return hole section 101 is higher than the horizontal position of the outlet end, and even when the supercharger bracket 100 is tilted, the oil return hole section 101 can still maintain a certain slope with the horizontal plane, so that the lubricating oil can continue to flow under the action of gravity, achieving smooth oil return transportation, effectively avoiding the problem of poor oil return inside the supercharger bracket 100 under tilted conditions, and improving the safety and reliability of engine operation.

[0061] Under the condition that the tilting and rotating of the supercharger bracket 100 around the first axis and around the second axis respectively reach the critical pitch angle γ and the critical roll angle θ:

[0062] If the oil return hole section 101 extends in a direction perpendicular to the first axis, and the designed inclination angle At this time, the angle β formed between the oil return hole section 101 and the horizontal plane is 1-min for:

[0063] β1-min =arctan(tanα×cosθ)-γ≥β;

[0064] If the oil return hole section 101 extends in a direction perpendicular to the second axis, and the designed inclination angle At this time, the angle β formed between the oil return hole section 101 and the horizontal plane is 2-min for:

[0065] β 2-min =arctan(tanα×cosγ)-θ≥β;

[0066] It can be obtained that, by adopting the designed inclination angle α of the oil return hole section 101, under the condition that the supercharger bracket 100 is tilted to reach the critical longitudinal inclination angle γ and the critical transverse inclination angle θ, the angle between the oil return hole section 101 and the horizontal plane can still be maintained at a value not less than the critical oil return inclination angle β; in other words, when the supercharger bracket 100 is tilted at any angle within the range of not more than the critical longitudinal inclination angle γ and the critical transverse inclination angle θ, a slope not less than the critical oil return inclination angle β can be formed between the oil return hole section 101 and the horizontal plane, so that the lubricating oil can flow under the action of gravity, thereby ensuring smooth oil return.

[0067] like Figure 4 , Figure 8 As shown, in one or more embodiments of the supercharger bracket 100, the supercharger bracket 100 is used for a ship; at least one of the oil return hole sections 101 extends in a direction perpendicular to the first axis and satisfies α≥11°; the direction of the first axis is the direction between the two sides of the ship.

[0068] It can be understood that when sailing, the hull drives the engine and the supercharger bracket 100 to tilt; the direction of the first axis can be set to the direction between the two sides of the hull, that is, the width direction of the hull; the direction of the second axis can be set to the direction between the bow and stern of the hull, that is, the length direction of the hull; at this time, the pitch of the hull causes the supercharger bracket 100 to rotate around the first axis, and the roll of the hull causes the supercharger bracket 100 to rotate around the second axis; the oil return hole section 101 is set to extend in a direction perpendicular to the first axis, and α≥11° is satisfied, so that when the hull moves within a pitch amplitude of 5° and a roll amplitude of 15°, the oil return hole section 101 can always maintain a slope angle of not less than 5° with the horizontal plane. Such a design has strong adaptability to the actual working conditions of the marine engine, meets the use needs of the marine supercharger bracket 100, ensures smooth oil return, and improves the safety and reliability of the operation of the marine engine.

[0069] In one or more embodiments of the supercharger bracket 100, the supercharger bracket is used for ships; at least one of the oil return hole sections extends in a direction perpendicular to the second axis and satisfies α≥20.5°; the direction of the second axis is the direction between the bow and stern of the ship; such a design ensures that when the hull moves within a pitch amplitude of 5° and a roll amplitude of 15°, the oil return hole section 101 can always maintain a slope angle of not less than 5° with the horizontal plane, has strong adaptability to actual working conditions of the marine engine, ensures smooth oil return, and improves the safety and reliability of the operation of the marine engine.

[0070] like Figures 5 to 7 As shown, in one or more embodiments of the supercharger bracket 100, at least one of the oil return hole sections 101 extends in the direction between the vortex end and the pressure end of the supercharger 20, and / or at least one of the oil inlet hole sections 102 extends in the direction between the vortex end and the pressure end of the supercharger 20, so that the lubricating oil flows in the direction away from the vortex end; the vortex end refers to one side of the turbine 21 in the supercharger 20, and the pressure end refers to one side of the compressor 22 in the supercharger 20.

[0071] It can be understood that since the temperature of the turbine end of the supercharger 20 is extremely high during operation, there will be a risk of fire once the lubricating oil leaks; the design makes at least part of the oil inlet and return channels away from the turbine end, which is beneficial to avoid heating of the lubricating oil, reduce the risk of fire, and improve the cooling efficiency of the lubricating oil.

[0072] like Figures 5 to 7 As shown, optionally, the supercharger bracket 100 is provided with a connecting structure 110, an intermediate structure 111 and a mounting structure 112 in sequence; the connecting structure 110 provides a mounting position for the supercharger 20, and is used for connecting with the supercharger 20; the oil inlet hole section 102 and the oil return hole section 101 can be mainly arranged inside the intermediate structure 111; one of the oil inlet hole sections 102 and the oil return hole section 101 extends to the surface of the connecting structure 110 along the direction of the third axis (z axis) to form a supercharger end oil inlet port 108 and a supercharger end oil return port 107 for communicating with the supercharger 20; one of the oil inlet hole section 102 and the oil return hole section 101 extends to the surface of the supercharger 20 to form a pipeline end oil inlet port 106 and a pipeline end oil return port 105 for communicating with the lubricating oil inlet and return oil pipelines; as shown Figure 7 As shown, the intermediate structure 111 may also be provided with an inclined structure 113; in the direction between the turbine end and the pressure end, at least part of the inclined structure 113 has a size larger than the connecting structure 110 to provide an arrangement space for the oil inlet hole section 102 and / or the oil return hole section 101, so that the lubricating oil can flow in a direction away from the turbine end; the mounting structure 112 is used for installation, positioning, etc., for example, connected to the bottom surface of the cabin.

[0073] like Figure 2 , Figure 6 , Figure 8 As shown, in one or more embodiments of the supercharger bracket 100, the supercharger bracket 100 further includes: a first end surface 103, provided with a pipeline end oil return port 105; Figure 8 As shown, the first end surface 103 and the base plane have an angle The oil return hole section 101 extends from the pipeline end oil return port 105 in a direction perpendicular to the first end face 103. With such a design, the oil return hole section 101 can be formed by vertically drilling holes on the first end face 103, which is conducive to reducing the difficulty and cost of processing and ensuring the processing quality.

[0074] Optionally, the inclined structure 113 is further provided with a second end surface 104; the second end surface 104 is provided with a pipeline end oil inlet 106; the second end surface 104 and the surface of the inclined structure 113 have an angle so that the oil inlet hole section 102 extends from the pipeline end oil inlet 106 in a direction perpendicular to the second end surface 104. With such a design, the oil inlet hole section 102 can be formed by vertically punching holes on the second end surface 104, which is conducive to reducing the difficulty and cost of processing, ensuring the processing quality, etc.; and by setting the pipeline end oil inlet 106 on the second end surface 104, the oil inlet hole section 102 can be extended in the direction between the turbine end and the pressure end, thereby making the oil inlet channel away from the turbine end, which is conducive to avoiding the heating of the lubricating oil and reducing the risk of fire, etc.

[0075] like Figure 2 , Figure 6 As shown, in one or more embodiments of the supercharger bracket 100 , the supercharger bracket 100 further includes: a process hole 109 extending inward from the surface of the supercharger bracket 100 to provide an operating space for machining the oil return hole section 101 or the oil inlet hole section 102 .

[0076] It can be understood that the oil return hole section 101 and the oil inlet hole section 102 may be arranged inside the supercharger bracket 100, and the processing method may be to first punch a hole from the surface of the supercharger bracket 100 to form the process hole 109, and then process the inside of the process hole 109 to form the oil return hole section 101 or the oil inlet hole section 102, and then seal the process hole 109; the design of the process hole 109 is conducive to reducing the processing difficulty and cost, ensuring the processing quality, etc.; the process hole 109 can also be used for inspecting and maintaining the oil return hole section 101 and the oil inlet hole section 102.

[0077] The present application also provides a supercharger assembly 1, which includes a supercharger 20 and the supercharger bracket 100 described in the above embodiment, wherein the supercharger 20 is connected to the supercharger bracket 100 and is installed at a corresponding installation position of the supercharger through the supercharger bracket.

[0078] The present application also provides an engine, which includes the supercharger assembly 1 described in the above embodiment.

[0079] like Fig. 9 As shown, the present application also provides a design method for a supercharger bracket, wherein the supercharger bracket is the supercharger bracket 100 described in the above embodiment, and comprises:

[0080] S110. Setting the critical oil return angle β;

[0081] S120. Setting the critical pitch angle γ;

[0082] S130. Setting the critical heel angle θ;

[0083] S140. Setting the extension direction of the oil return hole section 101;

[0084] S151. If the extension direction of the oil return hole section 101 is set to extend in a direction perpendicular to the first axis, then the design inclination angle of the oil return hole section 101 is set to

[0085] S152. If the extension direction of the oil return hole section 101 is set to extend in a direction perpendicular to the second axis, then the design inclination angle of the oil return hole section 101 is set to

[0086] Among them, there is a designed inclination angle α between the oil return hole section 101 and the base plane, so that the inlet end of the oil return hole section is higher than the horizontal position of the outlet end; the base plane is defined by a first axis and a second axis that are perpendicular to each other, and the base plane is parallel to the horizontal plane when the supercharger bracket 100 is in the initial position; the critical oil return inclination angle β is the threshold value of the angle between the oil return hole section 101 and the horizontal plane; the critical longitudinal inclination angle γ is the threshold value of the rotation of the supercharger bracket 100 around the first axis; the critical transverse inclination angle θ is the threshold value of the rotation of the supercharger bracket 100 around the second axis.

[0087] Specifically, the critical oil return inclination angle β, the critical pitch angle γ, and the critical roll angle θ can be set according to actual needs, including but not limited to the actual use conditions and safety requirements of the supercharger 20; optionally, when the supercharger bracket 100 adopts a solution of returning oil only by gravity, a relatively large critical oil return inclination angle β is generally set according to needs to ensure the realization of the basic oil return and delivery function; and when the supercharger bracket 100 adopts a solution of pressurized oil return, a relatively small or zero critical oil return inclination angle β can be set, which is conducive to reducing the height size of the supercharger bracket 100 and the engine as a whole, making the structure compact; optionally, the critical pitch angle γ and the critical roll angle θ can be ... The angle γ and the critical heel angle θ can be set according to the maximum inclination angle that the supercharger bracket 100 can occur. For example, for a marine supercharger bracket 100, the supercharger bracket 100 tilts with the hull, and then the critical pitch angle γ and the critical heel angle θ can be determined according to the pitch and roll amplitudes of the hull; optionally, the extension direction of the oil return hole section 101 is set according to the overall structure of the engine and the supercharger bracket 100, so that the overall structure is compact, the structural strength is ensured, and the internal space of the supercharger bracket 100 is fully utilized; the extension direction of the oil return hole section 101 can also be set according to the layout plan of the supercharger 100 and the lubricating oil pipeline.

[0088] like Fig.10 As shown, the present application also provides a method for processing a supercharger bracket, wherein the supercharger bracket is the supercharger bracket 100 described in the above embodiment, and comprises:

[0089] S210. Processing the first end surface 103, wherein the first end surface 103 has an angle with the base plane The oil return hole section 101 is formed by vertically punching a hole on the first end surface 103, which is the complementary angle of the designed inclination angle α. Such processing is beneficial to reducing the processing difficulty and cost of the supercharger bracket 100, ensuring the processing quality, etc.

[0090] Optionally, the processing method of the supercharger bracket 100 further includes:

[0091] S220. Processing a process hole 109 extending from the surface of the supercharger bracket 100 to the inside, and processing an oil return hole section 101 or an oil inlet hole section 102 in one of the process holes 109; this helps to further reduce the processing difficulty and cost of the supercharger bracket 100, ensure processing quality, etc.

[0092] In summary, the advanced technical effects of this application include but are not limited to at least one of the following:

[0093] 1. By designing the oil return hole section to have a certain designed inclination angle α with the base plane, the inlet end of the oil return hole section is higher than the horizontal position of the outlet end, and even when the supercharger bracket is tilted, the oil return hole section can still maintain a certain slope with the horizontal plane, so that the lubricating oil can flow continuously under the action of gravity, and smooth oil return transportation is achieved, effectively avoiding the problem of poor oil return inside the supercharger bracket under tilted conditions, thereby improving the safety and reliability of engine operation.

[0094] 2. The oil return hole section of the marine supercharger bracket is designed to extend in a direction perpendicular to the first axis and satisfy α≥11°, so that when the hull moves within a pitch limit of 5° and a roll limit of 15°, the oil return hole section can always maintain a slope angle of not less than 5° with the horizontal plane. Such a design has strong adaptability to the actual working conditions of the marine engine, meets the use requirements of the marine supercharger bracket, ensures smooth oil return, and improves the safety and reliability of the operation of the marine engine.

[0095] 3. The design makes at least part of the oil inlet and return channels away from the turbine end, which helps to prevent the lubricating oil from being heated, reduce the risk of fire, and improve the cooling efficiency of the lubricating oil.

[0096] Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application, and any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, any modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application shall fall within the scope of protection defined by the claims of the present application.

Claims

1. A supercharger bracket, characterized in that: include: The oil return hole section is used as a flow channel for outputting lubricating oil from the supercharger; The oil inlet section is used as a flow channel for inputting lubricating oil into the supercharger; wherein, The oil return hole section has a designed inclination angle α with the base plane, so that the inlet end of the oil return hole section is higher than the horizontal position of the outlet end; the base plane is defined by a first axis and a second axis that are perpendicular to each other, and the base plane is parallel to the horizontal plane when the supercharger bracket is in the initial position; At least one of the oil return hole sections extends in a direction perpendicular to the first axis and satisfies: and / or, At least one of the oil return hole sections extends in a direction perpendicular to the second axis and satisfies: In the formula, the critical oil return inclination angle β is the threshold value of the angle between the oil return hole section and the horizontal plane; the critical pitch angle γ is the threshold value of the rotation of the supercharger bracket around the first axis; and the critical roll angle θ is the threshold value of the rotation of the supercharger bracket around the second axis.

2. The supercharger bracket according to claim 1, characterized in that: The supercharger bracket is used for ships; at least one of the oil return hole sections extends in a direction perpendicular to the first axis and satisfies α≥11°; the direction of the first axis is the direction between the two sides of the ship.

3. The supercharger bracket according to claim 1, characterized in that: The supercharger bracket is used for ships; at least one of the oil return hole sections extends in a direction perpendicular to the second axis and satisfies α≥20.5°; the direction of the second axis is the direction between the bow and stern of the ship.

4. The supercharger bracket according to claim 1, characterized in that: At least one of the oil return hole sections extends in the direction between the vortex end and the pressure end of the supercharger, and / or at least one of the oil inlet hole sections extends in the direction between the vortex end and the pressure end of the supercharger, so that the lubricating oil flows away from the vortex end.

5. The supercharger bracket according to claim 1, characterized in that: Also includes: The first end face is provided with a pipeline end oil return port; the angle φ between the first end face and the base plane is the complementary angle of the designed inclination angle α, and the oil return hole section extends from the pipeline end oil return port in a direction perpendicular to the first end face.

6. The supercharger bracket according to claim 1, characterized in that: Also includes: A process hole extends inward from the surface of the supercharger bracket and is used to provide a working space for processing the oil return hole section or the oil inlet hole section.

7. A supercharger assembly, characterized in that: It comprises a supercharger and a supercharger bracket as claimed in any one of claims 1 to 6; the supercharger is connected to the supercharger bracket and is installed at a corresponding installation position of the supercharger through the supercharger bracket.

8. An engine, characterized in that: Comprising the supercharger assembly of claim 7.

9. A method for designing a supercharger bracket, characterized in that: The supercharger bracket is a supercharger bracket as claimed in any one of claims 1 to 6, and the design method comprises: Set the critical oil return angle β; Set the critical pitch angle γ; Set the critical heel angle θ; Set the extension direction of the oil return hole section; If the extension direction of the oil return hole section is set to extend in a direction perpendicular to the first axis, the oil return hole section is set to have a designed inclination angle If the extension direction of the oil return hole section is set to extend in a direction perpendicular to the second axis, the oil return hole section is set to have a designed inclination angle Among them, there is a designed inclination angle α between the oil return hole section and the base plane, so that the inlet end of the oil return hole section is higher than the horizontal position of the outlet end; the base plane is defined by a first axis and a second axis that are perpendicular to each other, and the base plane is parallel to the horizontal plane when the supercharger bracket is in the initial position; the critical oil return inclination angle β is the threshold value of the angle between the oil return hole section and the horizontal plane; the critical longitudinal inclination angle γ is the threshold value of the rotation of the supercharger bracket around the first axis; the critical transverse inclination angle θ is the threshold value of the rotation of the supercharger bracket around the second axis.

10. A method for processing a supercharger bracket, characterized in that: The supercharger bracket is a supercharger bracket as claimed in any one of claims 1 to 6, and the processing method comprises: The first end face is processed, wherein an angle φ between the first end face and the base plane is a complementary angle of the designed inclination angle α, and a hole is vertically punched on the first end face to form the oil return hole section.

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