Anti-surge valve buffer bushing mounting structure

Abstract

The utility model relates to an anti-surge valve buffer bush installation structure which comprises a turbocharger, an anti-surge valve installation end face is arranged on the outer side of the turbocharger, an air inlet pipeline is arranged in the turbocharger, a buffer bush is installed on the outer end face of the air inlet pipeline, and the buffer bush extends out of the anti-surge valve installation end face. The size h of the portion, extending out of the anti-surge valve mounting end face, of the buffering bush is 1.0 + / -0.1 mm. The buffer bushing is made of tetrafluoroethylene materials, so that the service life of the valve assembly is prolonged while the impact abnormal noise is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of turbocharger technology and relates to the installation structure of anti-surge valve buffer bushing. Background Technology

[0002] Turbochargers are key components of modern high-performance engines, increasing engine power and torque by increasing intake pressure. However, under certain operating conditions, turbochargers may experience surge. Surge is an unstable operating condition that can damage the turbocharger and the entire engine system. To address this issue, turbochargers are typically equipped with anti-surge valves.

[0003] Anti-surge valves are used as protective devices for turbocharged engines. When the turbocharger operates at high boost, the throttle is closed, resulting in very high pressure in the intercooler pipes, which can cause the compressor to stop. The anti-surge valve opens, balancing the pressure across the compressor and preventing turbocharger surge, thus protecting the turbocharger.

[0004] Anti-surge valves effectively prevent turbocharger surge, protecting the engine system from damage. They also improve the reliability and durability of the turbocharger, extending its service life.

[0005] When the turbocharger is throttled, it compresses a large amount of air and pushes it in through the throttle valve. When the throttle is released suddenly, the throttle valve closes at the same time, but the turbocharger continues to run at high speed due to inertia, generating compressed air in the intake manifold. To prevent engine surge, the anti-surge valve discharges the residual compressed air. During the opening and closing process of the anti-surge valve, it will hit the housing, producing a sharp abnormal noise. Summary of the Invention

[0006] The purpose of this utility model is to provide an anti-surge valve buffer bushing installation structure, which can solve the problem of generating sharp abnormal noise and also improve the service life of valve components.

[0007] According to the technical solution provided by this utility model: an anti-surge valve buffer bushing installation structure includes a turbocharger, the outer side of the turbocharger is the anti-surge valve installation end face, the turbocharger is provided with an intake pipe, a buffer bushing is installed on the outer end face of the intake pipe, and the buffer bushing extends out of the anti-surge valve installation end face.

[0008] As a further improvement of this utility model, the dimension h of the buffer bushing extending out of the mounting end face of the anti-surge valve is 1.0±0.1mm.

[0009] As a further improvement of this utility model, the buffer bushing consists of a buffer part, an axial front limiting part, a first axial anti-disengagement claw, a second axial anti-disengagement claw, and an axial rear limiting part in sequence, with a vent hole penetrating the middle of the buffer bushing.

[0010] As a further improvement of this utility model, the end of the air intake pipe is a bushing mounting cavity, which consists of an axial front limiting groove, a first axial anti-detachment claw mounting groove, a second axial anti-detachment claw mounting groove, and an axial rear limiting groove in sequence.

[0011] As a further improvement of this utility model, an axial front limiting part, a first axial anti-detachment claw, a second axial anti-detachment claw, and an axial rear limiting part are respectively inlaid in the axial front limiting groove, the first axial anti-detachment claw mounting groove, the second axial anti-detachment claw mounting groove, and the axial rear limiting groove.

[0012] As a further improvement of this utility model, the axial front limiting part and the axial front limiting groove are interference fit.

[0013] As a further improvement of this utility model, the axial front limiting part and the first axial anti-detachment claw form a first annular surface, and the first axial anti-detachment claw and the second axial anti-detachment claw form a second annular surface; the first annular surface and the bushing mounting cavity are interference fit.

[0014] As a further improvement of this utility model, the buffer part is arc-shaped.

[0015] As a further improvement of this utility model, the size of the second annular surface is smaller than that of the first annular surface.

[0016] The positive and progressive effects of this application are as follows:

[0017] This utility model's buffer bushing is made of PTFE material, which is unprecedented in traditional shell structures; while reducing impact noise, it is firmly connected to the turbocharger and also improves the service life of the valve assembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the turbocharger of this utility model.

[0020] Figure 3 for Figure 2 An enlarged schematic diagram of region A in the middle.

[0021] Figure 4 for Figure 3 A magnified view of region B in the middle.

[0022] Figure 5 This is a schematic diagram of the structure of the buffer bushing of this utility model.

[0023] Figures 1-5The components include a turbocharger 1, an anti-surge valve mounting face 1-1, an intake pipe 1-2, an axial front limiting groove 1-3, a first axial anti-slip claw mounting groove 1-4, a second axial anti-slip claw mounting groove 1-5, an axial rear limiting groove 1-6, a buffer bushing 2, a buffer part 2-1, an axial front limiting part 2-2, a first axial anti-slip claw 2-3, a second axial anti-slip claw 2-4, an axial rear limiting part 2-5, a first annular surface 2-6, a second annular surface 2-7, and a vent 2-8. Detailed Implementation

[0024] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this utility model described herein. Furthermore, terms such as "comprising" and "having" mean that in addition to those already listed in "comprising" and "having," other unlisted contents may also be included; for example, a process, method, system, product, or device may include a series of steps or units, not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0027] Due to the angle of the drawing, some parts may not be drawn, but their positions and connections can be understood from the text descriptions.

[0028] like Figure 1 As shown, this utility model is an anti-surge valve buffer bushing installation structure, including a turbocharger 1, the outer side of the turbocharger 1 is the anti-surge valve installation end face 1-1, the turbocharger 1 is provided with an intake pipe 1-2, and a buffer bushing 2 is installed on the outer end face of the intake pipe 1-2, the buffer bushing 2 extends out of the anti-surge valve installation end face 1-1.

[0029] The dimension h of the buffer bushing 2 extending out of the anti-surge valve mounting end face 1-1 is 1.0±0.1mm.

[0030] like Figure 5 As shown, the buffer bushing 2 has a buffer part 2-1, an axial front limiting part 2-2, a first axial anti-detachment claw 2-3, a second axial anti-detachment claw 2-4, an axial rear limiting part 2-5, and a vent hole 2-8 penetrating through the middle of the buffer bushing 2.

[0031] like Figures 2-4 As shown, the end of the air intake pipe 1-2 is a bushing mounting cavity, which consists of an axial front limiting groove 1-3, a first axial anti-detachment claw mounting groove 1-4, a second axial anti-detachment claw mounting groove 1-5, and an axial rear limiting groove 1-6.

[0032] The axial front limiting groove 1-3, the first axial anti-detachment claw mounting groove 1-4, the second axial anti-detachment claw mounting groove 1-5, and the axial rear limiting groove 1-6 are respectively inlaid with the axial front limiting part 2-2, the first axial anti-detachment claw 2-3, the second axial anti-detachment claw 2-4, and the axial rear limiting part 2-5.

[0033] The axial front limiting part 2-2 and the axial front limiting groove 1-3 are interference fit to prevent the buffer bushing 2 and the turbocharger 1 from rotating relative to each other.

[0034] The first annular surface 2-6 is located between the axial front limiting part 2-2 and the first axial anti-slip claw 2-3, and the second annular surface 2-7 is located between the first axial anti-slip claw 2-3 and the second axial anti-slip claw 2-4. The first annular surface 2-6 and the bushing mounting cavity are interference fit.

[0035] The buffer section 2-1 is arc-shaped, which allows for a gentler contact with the valve of the anti-surge valve.

[0036] The second annular surface 2-7 is smaller than the first annular surface 2-6, which facilitates the insertion of the first axial anti-slip claw 2-3 and the second axial anti-slip claw 2-4 into the bushing mounting cavity.

[0037] The buffer bushing 2 is made of PTFE material, which reduces impact noise and improves the service life of the valve assembly.

[0038] The working process of this utility model is as follows:

[0039] When the buffer bushing 2 is subjected to axial impact from the valve in the anti-surge valve, the buffer part 2-1 absorbs the impact, the axial front limit part 2-2 and the axial rear limit part 2-5 prevent the buffer bushing 2 from moving into the intake pipe 1-2, and the first axial anti-disengagement claw 2-3 and the second axial anti-disengagement claw 2-4 prevent the buffer bushing 2 from disengaging from the turbocharger 1.

[0040] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A surge valve buffer bushing mounting structure, comprising a turbocharger (1), the outer side of the turbocharger (1) being a surge valve mounting end face (1-1), and an intake pipe (1-2) provided in the turbocharger (1), characterized in that, A buffer bushing (2) is installed on the outer end face of the air intake pipe (1-2), and the buffer bushing (2) extends out of the anti-surge valve mounting end face (1-1).

2. The anti-surge valve buffer bushing mounting structure as described in claim 1, characterized in that, The dimension h of the buffer bushing (2) extending out of the anti-surge valve mounting end face (1-1) is 1.0±0.1mm.

3. The anti-surge valve buffer bushing mounting structure as described in claim 1, characterized in that, The buffer bushing (2) consists of a buffer part (2-1), an axial front limiting part (2-2), a first axial anti-detachment claw (2-3), a second axial anti-detachment claw (2-4), and an axial rear limiting part (2-5). A vent hole (2-8) runs through the middle of the buffer bushing (2).

4. The anti-surge valve buffer bushing mounting structure as described in claim 3, characterized in that, The end of the air intake pipe (1-2) is a bushing mounting cavity, which consists of an axial front limiting groove (1-3), a first axial anti-detachment claw mounting groove (1-4), a second axial anti-detachment claw mounting groove (1-5), and an axial rear limiting groove (1-6).

5. The anti-surge valve buffer bushing mounting structure as described in claim 4, characterized in that, The axial front limiting groove (1-3), the first axial anti-detachment claw mounting groove (1-4), the second axial anti-detachment claw mounting groove (1-5), and the axial rear limiting groove (1-6) are respectively inlaid with the axial front limiting part (2-2), the first axial anti-detachment claw (2-3), the second axial anti-detachment claw (2-4), and the axial rear limiting part (2-5).

6. The anti-surge valve buffer bushing mounting structure as described in claim 4, characterized in that, The axial front limiting part (2-2) and the axial front limiting groove (1-3) are interference fit.

7. The anti-surge valve buffer bushing mounting structure as described in claim 4, characterized in that, The first annular surface (2-6) is between the axial front limiting part (2-2) and the first axial anti-detachment claw (2-3), and the second annular surface (2-7) is between the first axial anti-detachment claw (2-3) and the second axial anti-detachment claw (2-4); the first annular surface (2-6) and the bushing mounting cavity are interference fit.

8. The anti-surge valve buffer bushing mounting structure as described in claim 3, characterized in that, The buffer section (2-1) is arc-shaped.

9. The anti-surge valve buffer bushing mounting structure as described in claim 1, characterized in that, The second toroidal surface (2-7) is smaller than the first toroidal surface (2-6).

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