CN215761887U - Exhaust system gasket - Google Patents
Exhaust system gasket Download PDFInfo
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- CN215761887U CN215761887U CN202121840227.9U CN202121840227U CN215761887U CN 215761887 U CN215761887 U CN 215761887U CN 202121840227 U CN202121840227 U CN 202121840227U CN 215761887 U CN215761887 U CN 215761887U
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- gasket
- exhaust
- layer plate
- holes
- plates
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Abstract
The utility model discloses an exhaust system gasket, which comprises a gasket body, wherein a plurality of exhaust holes and a plurality of bolt holes are formed in the gasket body, and the exhaust holes and the bolt holes vertically penetrate through the gasket body; the gasket is characterized in that the gasket body is composed of a middle layer plate made of common stainless steel materials and upper and lower layer plates made of high-temperature-resistant stainless steel materials, and a plurality of bolt holes and a plurality of exhaust holes are formed in the corresponding positions of the middle layer plate and the upper and lower layer plates; after the upper and lower plates are bent at the bolt hole positions, the middle plate and the upper and lower plates are fixedly connected together; the upper and lower plates press sealing corrugations with opposite directions around the exhaust hole; the middle layer plate plays a role of a convex rib between the exhaust holes, so that the gasket can be prevented from being damaged under the condition that the flange is greatly deformed; the gasket with the structure is suitable for the sealing requirements of the gasket of the exhaust system with high temperature and large transverse deformation of the flange, reduces the cost of the gasket on the basis of ensuring high-temperature sealing reliability, and has high popularization value.
Description
Technical Field
The utility model relates to the technical field of sealing elements, in particular to an exhaust system gasket which is used for an engine sealing element.
Background
The gasket for the engine is used for sealing among flanges of the engine, and the structure, the material and the sealing mode of the gasket influence the difficulty degree of processing products in the production process and influence the production cost and the sealing reliability of the products. Along with the development trend of the exhaust upgrading and the light weight of the engine, the exhaust temperature of the engine is continuously increased, the strength of a flange is relatively reduced, the transverse deformation of the engine in the running process is large, and the gasket is easily damaged to influence the sealing.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to overcome the above-mentioned deficiencies of the prior art and to provide an exhaust system gasket.
The technical scheme provided by the utility model is as follows: the exhaust system gasket comprises a gasket body, wherein an exhaust hole and a plurality of bolt holes are formed in the gasket body, and the exhaust hole and the bolt holes vertically penetrate through the gasket body; the gasket is characterized in that the gasket body consists of a middle layer plate made of common stainless steel materials and upper and lower layer plates made of high-temperature-resistant stainless steel materials, wherein a plurality of bolt holes and exhaust holes are formed in the corresponding positions of the middle layer plate and the upper and lower layer plates; the middle layer plate is fixedly connected with the upper layer plate and the lower layer plate; the upper and lower plates are pressed with sealing ripples with opposite directions around the exhaust hole.
Furthermore, after the upper and lower plates are bent at the bolt hole positions, the middle plate, the upper and lower plates are fixedly connected together.
Furthermore, the middle layer plate is provided with a convex rib between the exhaust holes.
Further, the surface of the gasket body can be coated with a high-temperature resistant coating.
The utility model has the beneficial effects that: can be higher satisfying the row of temperature, the great position use of horizontal heat altered shape, high temperature resistant stainless steel is connected in the both sides of ordinary stainless steel, when the heat altered shape appears in the blast pipe, the increase of blast pipe horizontal deformation, the gasket can be followed the blast pipe and produced certain deformation, the protruding muscle part of ordinary stainless steel in the middle of this moment can effectually reduce the sealed pad horizontal tensile deformation that arouses of exhaust hole department because of the blast pipe deformation, great reduction the damaged probability of exhaust pad, the sealing capacity of effectual improvement product.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a sectional view B-B of fig. 1.
In the figure: 1 gasket body, 2 exhaust holes, 3 bolt holes, 4 middle layer plates, 5 upper layer plates, 6 lower layer plates, 7 raised ribs and 8 sealing corrugations.
Detailed Description
The present invention is described in detail below with reference to the attached drawings.
As shown in fig. 1, 2 and 3, the exhaust system gasket has a gasket body with 3 layers as an example; an upper layer plate 5 and a lower layer plate 6 are made of high-temperature-resistant stainless steel materials, a middle layer plate 4 made of common stainless steel materials is adopted, a plurality of bolt holes 3 and vent holes 2 are formed in the corresponding positions of the middle layer plate 4, the upper layer plate 5 and the lower layer plate 6 are bent at the bolt holes 3, the middle layer plate 4, the upper layer plate 5 and the lower layer plate 6 are fixedly connected together to make a gasket body 1, the gasket body 1 is provided with vent holes 2 and a plurality of bolt holes 3, and the vent holes 2 and the bolt holes 3 penetrate through the gasket body 1 from top to bottom; sealing corrugations 8 in opposite directions are pressed around the exhaust holes 2 by the upper plate 5 and the lower plate 6, and high-temperature gas sealing is realized through the sealing corrugations; the middle layer plate 4 is provided with the convex ribs 7 between the exhaust holes 2, when the exhaust pipe is subjected to thermal deformation at high temperature, the transverse deformation vibration of the exhaust pipe is increased, the convex ribs 7 of the middle common stainless steel are stretched or compressed, the gasket is made to follow along with the transverse deformation of the exhaust pipe by utilizing the elastic deformation of the convex ribs 7, and the gasket at the exhaust holes is influenced by smaller transverse deformation, so that the deformation resistance of the gasket can be effectively improved, the gasket is guaranteed not to be damaged, the sealing capability is improved, and the gas leakage of the exhaust pipe of the engine is prevented; in order to further reduce the damage of the gasket at the exhaust hole, a high-temperature-resistant coating can be coated on the surface of the gasket body so as to reduce the friction between the gasket and the exhaust pipe and improve the sealing property.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. The exhaust system gasket comprises a gasket body, wherein an exhaust hole and a plurality of bolt holes are formed in the gasket body, and the exhaust hole and the bolt holes vertically penetrate through the gasket body; the gasket is characterized in that the gasket body consists of a middle layer plate made of common stainless steel materials and upper and lower layer plates made of high-temperature-resistant stainless steel materials, wherein a plurality of bolt holes and exhaust holes are formed in the corresponding positions of the middle layer plate and the upper and lower layer plates; the middle layer plate is fixedly connected with the upper layer plate and the lower layer plate; the upper and lower plates press sealing corrugations with opposite directions around the exhaust hole; the middle layer plate is provided with convex ribs among the exhaust holes.
2. The gasket for an exhaust system according to claim 1 wherein said upper and lower plates are bent at bolt hole locations to fixedly connect the middle plate to the upper and lower plates.
3. The exhaust system gasket of claim 1 wherein said gasket body surface is coated with a high temperature resistant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121840227.9U CN215761887U (en) | 2021-08-09 | 2021-08-09 | Exhaust system gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121840227.9U CN215761887U (en) | 2021-08-09 | 2021-08-09 | Exhaust system gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215761887U true CN215761887U (en) | 2022-02-08 |
Family
ID=80073023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121840227.9U Active CN215761887U (en) | 2021-08-09 | 2021-08-09 | Exhaust system gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215761887U (en) |
-
2021
- 2021-08-09 CN CN202121840227.9U patent/CN215761887U/en active Active
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