Supercharger heat shield and supercharger
By setting an extension of the elastic structure between the turbocharger volute and the intermediate body, the problem of moisture leakage is solved, the heat insulation and sealing effect of the turbocharger is achieved, and the working environment stability of the turbocharger is improved.
Patent Information
- Application Number
- CN202520126382.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-01-20
AI Technical Summary
In existing technologies, the problem of condensed moisture overflowing from the gap between the turbocharger volute and the intermediate body affects the turbocharger's heat insulation and sealing performance.
A turbocharger heat shield was designed, comprising a main shield body and an extension. The extension is composed of an elastic structure that can elongate under compression to seal the gap between the vortex shell and the intermediate body, preventing moisture leakage and providing heat insulation.
It effectively prevents moisture leakage while maintaining heat insulation, thus improving the turbocharger's sealing performance and the stability of the working environment.
Smart Images
Figure CN223938126U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of turbocharger technology, and more particularly to a turbocharger heat shield and a turbocharger. Background Technology
[0002] A turbocharger is one of the devices that boosts the horsepower of an engine. Inside the turbocharger, a heat shield is installed at the junction of the turbocharger volute and the intermediate body to protect several important components of the turbocharger from excessively high temperatures and optimize the internal working environment of the turbocharger.
[0003] However, fuel combustion also produces a large amount of water, which condenses after being cooled by the intermediate body. How to prevent the condensed water from overflowing through the gap between the turbocharger volute and the intermediate body has become an urgent problem to be solved. Utility Model Content
[0004] In view of this, the present invention provides a turbocharger heat shield and an engine. The turbocharger heat shield not only provides heat insulation, but also prevents condensed water from leaking out through the gap between the turbocharger volute and the intermediate body.
[0005] In a first aspect, the turbocharger heat shield provided in this embodiment of the present invention includes a main shield body and an extension portion. The extension portion is used to be disposed between the turbocharger volute and the intermediate body. The extension portion is disposed at the edge of the main shield body. The extension portion includes an extension body and an elastic structure. The elastic structure protrudes from the extension body and protrudes to the side away from the intermediate body. When the elastic structure is subjected to a compressive force toward the intermediate body, the elastic structure extends and contracts along the extension direction of the extension portion.
[0006] In this application, the extension portion of the turbocharger heat shield is disposed between the turbocharger volute and the intermediate body. When the turbocharger volute mates with the intermediate body and compresses the extension portion, the elastic structure included in the extension portion elongates in the direction of extension. After elongation, the extension portion can seal the gap between the turbocharger volute and the intermediate body, thereby preventing condensed moisture from leaking out through the gap between the turbocharger volute and the intermediate body. In this manner, the turbocharger heat shield can serve both a heat insulation function and a sealing function.
[0007] In some possible implementations, the elastic structure is an arc-shaped protrusion.
[0008] In some possible implementations, the spacing between the arcuate protrusion and the extended body on the side facing the intermediate body is the same as the thickness of the arcuate protrusion.
[0009] In some possible implementations, the radius of the arcuate protrusion is 2 to 3.5 mm.
[0010] In some possible implementations, there are multiple arc-shaped protrusions, which are spaced apart along the extension direction of the extension.
[0011] In some possible implementations, the resilient structure includes a first connecting segment connected to the extension body, and the first connecting segment is inclined relative to the extension body.
[0012] In some possible implementations, the resilient structure includes a second connecting segment connected to the side of the first connecting segment away from the extension body, and the second connecting segment is arranged parallel to the extension body.
[0013] In some possible implementations, the main cover is U-shaped.
[0014] Secondly, an embodiment of this utility model provides a turbocharger, including a turbocharger volute and an intermediate body as described in any of the technical solutions of the first aspect. The turbocharger volute has a first contact surface and a second contact surface connected to each other, and the intermediate body has a third contact surface and a fourth contact surface connected to each other. The first contact surface is used to abut against the third contact surface, and the second contact surface abuts against the fourth contact surface. An extension is disposed between the second contact surface and the fourth contact surface. When the second contact surface in the turbocharger volute moves towards one side of the second contact surface in the intermediate body, the elastic structure included in the extension receives the squeezing force of the second contact surface. Under the action of the squeezing force of the second contact surface, the elastic structure drives the extension to move towards one side of the first contact surface of the turbocharger volute and abut against the first contact surface of the turbocharger volute to seal the gap between the first contact surface and the third contact surface.
[0015] In some possible implementations, the gap between the extension and the first contact surface is between 1.5 mm and 3.5 mm. Attached Figure Description
[0016] Figure 1 A cross-sectional view of the turbocharger heat shield provided in an embodiment of this utility model;
[0017] Figure 2 Another cross-sectional view of the turbocharger heat shield provided in this embodiment of the utility model;
[0018] Figure 3 for Figure 1 Enlarged view of A in the middle;
[0019] Figure 4 for Figure 2 Enlarged view of B in the middle;
[0020] Figure 5This is a partial schematic diagram of a booster provided in an embodiment of the present invention.
[0021] icon:
[0022] 10-Turbocharger heat shield; 11-Main shield; 12-Extension; 120-Extension body; 121-Elastic structure; 1210-First connecting section; 1211-Second connecting section; 20-Turbocharger volute; 21-First contact surface; 22-Second contact surface; 30-Intermediate body; 31-Third contact surface; 32-Fourth contact surface. Detailed Implementation
[0023] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] The following description, in conjunction with the accompanying drawings, details the turbocharger heat shield provided in the embodiments of this utility model.
[0025] Figure 1 A cross-sectional view of the turbocharger heat shield provided in an embodiment of this utility model; Figure 2 Another cross-sectional view of the turbocharger heat shield provided in this embodiment of the utility model; Figure 3 for Figure 1 Enlarged view of A in the middle; Figure 4 for Figure 2 A magnified view of B in the diagram. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 The turbocharger heat shield 10 provided in this application embodiment includes a main shield 11 and an extension 12. The extension 12 is used to be disposed between the turbocharger vortex housing 20 and the intermediate body 30. The extension 12 is disposed at the edge of the main shield 11. The extension 12 includes an extension body 120 and an elastic structure 121. The elastic structure 121 protrudes from the extension body 120 and protrudes to the side away from the intermediate body 30. When the elastic structure 121 is subjected to a compressive force toward the intermediate body 30, the elastic structure 121 extends and contracts along the extension direction of the extension 12.
[0026] In this application, the extension 12 of the turbocharger heat shield 10 is disposed between the turbocharger volute 20 and the intermediate body 30. When the turbocharger volute 20 engages with the intermediate body 30 and compresses the extension 12, the elastic structure 121 included in the extension 12 elongates in the direction extending along the extension 12. After elongation, the extension 12 can seal the gap between the turbocharger volute 20 and the intermediate body 30, thereby preventing condensed moisture from overflowing through the gap between the turbocharger volute 20 and the intermediate body 30. In this manner, the turbocharger heat shield 10 can serve both as heat insulation and as a sealing function.
[0027] In one embodiment, the elastic structure 121 can be an arc-shaped protrusion. The number of arc-shaped protrusions can be one or more. When there are multiple arc-shaped protrusions, they can be spaced apart. When the elastic structure 121 is subjected to a compressive force towards the intermediate body 30, at least one arc-shaped protrusion is compressed, so that the elastic structure 121 extends and contracts along the extension direction of the extension 12. When at least one arc-shaped protrusion is compressed, it is also necessary to ensure that the extension and contraction of the extension 12 can prevent condensed water from overflowing through the gap between the booster vortex 20 and the intermediate body 30.
[0028] The distance between the arc-shaped protrusion facing the middle body 30 and the extension body 120 is b, and the thickness of the arc-shaped protrusion is a. In the specific implementation process, the distance b and the thickness a can be the same, which can ensure the strength of the turbocharger heat shield 10 and also ensure that the heat insulation capacity of each part of the turbocharger heat shield 10 is the same.
[0029] In the above embodiments, the radius of the arc-shaped protrusion is 2~3.5mm. This ensures the amount of expansion and contraction of the extension 12 when the arc-shaped protrusion is compressed, preventing excessive expansion and contraction of the extension 12, which could affect the stability of the turbocharger heat shield 10 installation. It also prevents insufficient expansion and contraction of the extension 12, which could lead to the leakage of condensed moisture through the gap between the turbocharger volute 20 and the intermediate body 30. Specifically, the radius of the arc-shaped protrusion can be 2mm, 2.2mm, 2.5mm, 2.8mm, 3mm, 3.2mm, or 3.5mm.
[0030] Continue to refer to Figure 2 and Figure 4The elastic structure 121 may further include a first connecting segment 1210, which is connected to the extension body 120 and is inclined relative to the extension body 120. The angle between the extension direction of the first connecting segment 1210 and the extension body 120 can be 45°, 50°, 60° or 75°. When the first connecting segment 1210 is compressed, as it changes from being inclined relative to the extension body 120 to being located in the extension direction of the extension body 120, the length of the extension portion 12 increases. The increased length of the extension portion 12 can seal the gap between the turbocharger volute 20 and the intermediate body 30, thereby preventing condensed water from overflowing through the gap between the turbocharger volute 20 and the intermediate body 30.
[0031] The elastic structure 121 may further include a second connecting segment 1211. The first connecting segment 1210 and the second connecting segment 1211 are integrally formed, and the second connecting segment 1211 is arranged parallel to the extension body 120. The arrangement of the second connecting segment 1211 can increase the length of the extension 12, so that the turbocharger volute 20 can easily compress the elastic structure 121. In some other embodiments, the second connecting segment 1211 may not be arranged parallel to the extension body 120. The specific arrangement of the second connecting segment 1211 can be adjusted according to actual needs.
[0032] In the above embodiments, the main cover 11 can be U-shaped, and an opening is provided at the center of the main cover 11.
[0033] Figure 5 This is a partial schematic diagram of a booster provided in an embodiment of the present invention. (Refer to...) Figure 5 The present invention provides a turbocharger, including a turbocharger volute 20, an intermediate body 30, and a turbocharger heat shield 10 as described in any of the above technical solutions. The turbocharger volute 20 has a first contact surface 21 and a second contact surface 22 that are connected to each other. The intermediate body 30 has a third contact surface 31 and a fourth contact surface 32 that are connected to each other. The first contact surface 21 is used to abut against the third contact surface 31, the second contact surface 22 abuts against the fourth contact surface 32, and an extension 12 is disposed between the second contact surface 22 and the fourth contact surface 32. When the second contact surface 22 in the turbocharger volute 20 moves toward one side of the second contact surface 22 in the intermediate body 30, the elastic structure 121 included in the extension 12 will be subjected to the squeezing force of the second contact surface 22. Under the squeezing force of the second contact surface 22, the elastic structure 121 will drive the extension 12 to move toward one side of the first contact surface 21 of the turbocharger volute 20 and abut against the first contact surface 21 of the turbocharger volute 20 to seal the gap between the first contact surface 21 and the third contact surface 31.
[0034] In one embodiment, the gap between the extension 12 and the first contact surface 21 is between 1.5 mm and 3.5 mm. This ensures that the extension 12 has sufficient expansion and contraction when the second contact surface 22 presses against it, thereby improving the stability of the turbocharger heat shield 10.
[0035] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this utility model without departing from the spirit and scope of this utility model. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A turbocharger heat shield, comprising a main shield body and an extension portion, the extension portion being disposed between the turbocharger turbine housing and an intermediate body, characterized in that, The extension is disposed at the edge of the main cover. The extension includes an extension body and an elastic structure. The elastic structure protrudes from the extension body and protrudes to the side away from the intermediate body. When the elastic structure is subjected to a compressive force toward the intermediate body, the elastic structure extends and contracts along the extension direction of the extension.
2. The turbocharger heat shield as described in claim 1, characterized in that, The elastic structure is an arc-shaped protrusion.
3. The turbocharger heat shield as described in claim 2, characterized in that, The spacing between the arc-shaped protrusion facing the intermediate body and the extended body is the same as the thickness of the arc-shaped protrusion.
4. The turbocharger heat shield as described in claim 2, characterized in that, The radius of the arc-shaped protrusion is 2~3.5mm.
5. The turbocharger heat shield as described in any one of claims 2 to 4, characterized in that, There are multiple arc-shaped protrusions, and the multiple arc-shaped protrusions are spaced apart along the extension direction of the extension portion.
6. The turbocharger heat shield as described in claim 1, characterized in that, The elastic structure includes a first connecting segment, which is connected to the extension body and is inclined relative to the extension body.
7. The turbocharger heat shield as described in claim 6, characterized in that, The elastic structure includes a second connecting segment, which is connected to the side of the first connecting segment away from the extension body, and the second connecting segment is arranged parallel to the extension body.
8. The turbocharger heat shield as described in claim 1, characterized in that, The main cover is U-shaped.
9. A booster, characterized in that, The device includes a turbocharger volute housing and an intermediate body as described in any one of claims 1 to 8. The turbocharger volute housing has a first contact surface and a second contact surface that are connected to each other. The intermediate body has a third contact surface and a fourth contact surface that are connected to each other. The first contact surface is used to abut against the third contact surface. The second contact surface abuts against the fourth contact surface. The extension is disposed between the second contact surface and the fourth contact surface.
10. The booster as claimed in claim 9, characterized in that, The gap between the extension and the first contact surface is between 1.5 mm and 3.5 mm.