CN215333074U - Exhaust system gasket - Google Patents
Exhaust system gasket Download PDFInfo
- Publication number
- CN215333074U CN215333074U CN202121840299.3U CN202121840299U CN215333074U CN 215333074 U CN215333074 U CN 215333074U CN 202121840299 U CN202121840299 U CN 202121840299U CN 215333074 U CN215333074 U CN 215333074U
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- ring layer
- gasket
- inner ring
- exhaust
- outer ring
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Abstract
The utility model discloses an exhaust system gasket, which 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 is of a split structure and consists of an outer ring layer made of common stainless steel materials and an inner ring layer made of high-temperature-resistant materials, and the inner ring layer and the outer ring layer are connected together at a connecting point in a welding mode; a plurality of bolt holes are formed in the outer ring layer, and exhaust holes are formed in the inner ring layer; the inner ring layer presses sealing corrugated layers with opposite directions around the exhaust hole, and high-temperature gas sealing is realized by utilizing the high compensation of the sealing corrugations; the exhaust system gasket is suitable for the exhaust sealing requirements of engines with high temperature and large deformation, and can effectively reduce the gasket cost on the basis of ensuring high-temperature sealing reliability through the combination of common stainless steel and high-temperature resistant materials, thereby having higher 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
As is well known, an engine exhaust system gasket is an important sealing part for connecting an engine and exhaust flanges, and the temperature resistance of materials, the sealing structure and the like of the gasket affect the production cost and the sealing reliability of products. Along with the upgrading of the engine emission, the detonation pressure is continuously increased, the overall temperature resistance and quality requirements of the sealing gasket are continuously improved, and the quality of the gasket of the exhaust system not only can influence the performance of the engine, but also can influence the emission of the engine; the existing metal exhaust sealing gasket has the following defects: 1. the thermal deformation of the sealing and combining surface of the flange is required to be small, so that the machining precision of the exhaust pipe is improved and the temperature resistance requirement of the material of the exhaust pipe is improved, and the cost of the engine is correspondingly increased; 2. the exhaust temperature of the engine is continuously increased, and after the existing metal materials are pressed into waveforms, the compensation performance, the material strength and the like at high temperature can not meet the requirements.
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: an 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 is of a split structure and consists of an outer ring layer made of common stainless steel materials and an inner ring layer made of high-temperature resistant materials; the inner ring layer and the outer ring layer are respectively provided with a plurality of connecting points, and the inner ring layer and the outer ring layer are connected together at the connecting points through welding points; the outer ring layer is provided with a plurality of bolt holes, the inner ring layer is provided with exhaust holes, and the inner ring layer presses sealing corrugated layers with opposite directions around the exhaust holes.
Furthermore, the inner ring layer is composed of a single layer or two or more layers of temperature-resistant materials; the outer ring layer is made of a single layer or two or more layers of common stainless steel materials.
Furthermore, the thickness difference can exist between the overlapping thickness of the inner ring layer material and the overlapping thickness of the outer ring layer material.
The utility model has the beneficial effects that: 1. the sealing device can be used at a position where the exhaust temperature is high and the thermal deformation is large, the sealing waveform of the high-temperature material of the inner ring can overcome the problem that the high-temperature yield strength of the material is low, and meanwhile, the problem that the thermal deformation of the exhaust pipe flange is large can be compensated; 2. the inner ring is made of high-temperature-resistant materials, the outer ring is made of common stainless steel materials, and the sealing capability of the product can be improved while the cost is reduced through a split structure.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the product connection structure of the present invention.
In the figure, 1 sealing gasket, 2 exhaust holes, 3 bolt holes, 4 first common stainless steel material layers, 5 second common stainless steel material layers, 6 first high-temperature-resistant material layers, 7 second high-temperature-resistant material layers, 8 first sealing corrugated layers, 9 second sealing corrugated layers, 10 first connecting bulges, 11 second connecting bulges and 12 welding points.
Detailed Description
The present invention is described in detail below with reference to the attached drawings.
As shown in fig. 1 and 2, an exhaust system gasket is exemplified by a 2-layer gasket; the inner ring layer consists of a first high-temperature-resistant material layer 6 and a second high-temperature-resistant material layer 7, the inner ring layer is provided with an exhaust hole 2 and a plurality of first connecting bulges 10, and the first high-temperature-resistant material layer 6 and the second high-temperature-resistant material layer 7 are pressed on the periphery of the exhaust hole 2 to form a first sealing corrugated layer 8 and a second sealing corrugated layer 9 which have certain heights, widths and opposite directions; the outer ring layer consists of a first common stainless steel material layer 4 and a second common stainless steel material layer 5, and a plurality of bolt holes 3 and a plurality of second connecting bulges 11 are arranged on the outer ring layer; the thickness difference can exist between the overlapping thickness of the inner ring layer material and the overlapping thickness of the outer ring layer material; the inner ring layer and the outer ring layer are connected together at the positions of a first connecting bulge 10 and a second connecting bulge 11 through welding points 12 at the connecting bulge points to form a sealing gasket 1, and the exhaust holes 2 and the bolt holes 3 penetrate through the gasket body 1 up and down; through first sealed ripple layer 8 and the sealed ripple layer 9 of second, utilize the high temperature resistance of inner circle material and the high compensatory realization of sealed ripple layer to realize the gasket to high temperature gas's sealed, realize the assembly of gasket and flange through bolt hole 3.
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. An 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 is of a split structure and consists of an outer ring layer made of common stainless steel materials and an inner ring layer made of high-temperature resistant materials; the inner ring layer and the outer ring layer are respectively provided with a plurality of connecting points, and the inner ring layer and the outer ring layer are connected together at the connecting points through welding points; the outer ring layer is provided with a plurality of bolt holes, the inner ring layer is provided with exhaust holes, and the inner ring layer presses sealing corrugated layers with opposite directions around the exhaust holes.
2. The exhaust system gasket of claim 1 wherein said inner ring layer is comprised of a single layer or two or more layers of temperature resistant material; the outer ring layer is made of a single layer or two or more layers of common stainless steel materials.
3. An exhaust system gasket according to claim 1 wherein said inner ring layer material stack thickness differs from said outer ring layer material stack thickness by a thickness difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121840299.3U CN215333074U (en) | 2021-08-09 | 2021-08-09 | Exhaust system gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121840299.3U CN215333074U (en) | 2021-08-09 | 2021-08-09 | Exhaust system gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215333074U true CN215333074U (en) | 2021-12-28 |
Family
ID=79576438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121840299.3U Active CN215333074U (en) | 2021-08-09 | 2021-08-09 | Exhaust system gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215333074U (en) |
-
2021
- 2021-08-09 CN CN202121840299.3U patent/CN215333074U/en active Active
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