CN210152805U - Laminated metal cylinder cover gasket - Google Patents
Laminated metal cylinder cover gasket Download PDFInfo
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- CN210152805U CN210152805U CN201920866784.4U CN201920866784U CN210152805U CN 210152805 U CN210152805 U CN 210152805U CN 201920866784 U CN201920866784 U CN 201920866784U CN 210152805 U CN210152805 U CN 210152805U
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Abstract
The utility model discloses a laminated metal cylinder cover gasket, which comprises a gasket body, a cylinder opening, oil and water holes, wherein the gasket body is composed of a plurality of layers of metal plates; the multilayer metal plate is characterized in that the multilayer metal plate is an upper metal thick plate, a middle metal thin plate, a middle metal thick plate and a lower metal thick plate; the multilayer metal plates are all provided with punched holes, the upper cylinder opening part of the metal thick plate is respectively pressed with two waveforms, the metal thin plate is bent by 180 degrees and wraps and presses one waveform of the metal thick plate and is connected together, and the upper metal thick plate and the lower metal thick plate are respectively stacked on the upper part and the lower part of the metal thin plate to form the cylinder opening sealing structure of the cylinder cover gasket; the middle metal sheet is flanged, and the thickness of the middle metal sheet is higher than that of the body to form a section difference; the metal thin plate is connected with the metal thick plate by using the self-turning, and the warping of the thin plate after self-turning is overcome by using the strength of the thick plate; the segment difference is superposed with the waveform, so that the compensation performance at the segment difference can be improved; the other waveform on the rear side has sealing property at the same time interval difference, and the sealing property of the cylinder opening can be better improved.
Description
The technical field is as follows:
the utility model relates to a sealing member technical field, specifically say and a lamination metal cylinder head gasket for engine cylinder head gasket structural design.
Background art:
the cylinder head gasket for the engine is used for sealing connection between the cylinder head and the cylinder body of the engine, and the performance of the engine is directly influenced by the tightness of the cylinder head gasket. Along with automobile parts production and sales volume and overall quality requirement constantly improve, it is stricter to product seal reliability, and the jar mouth seal structure of current lamination metal cylinder lid gasket all adds the wave form for the rigidity segment difference or only the segment difference is sealed with the wave form stack, can not be better satisfy sealed requirement, and its shortcoming is:
1. the rigidity section difference is added with a waveform structure, the rigidity section difference cannot well compensate the lifting amount of a cylinder cover, the cylinder opening is subjected to auxiliary sealing by virtue of the waveform on the rear side of the section difference, most of bolt axial force is shared by the section difference, the cylinder opening is excessively sealed by virtue of the waveform on the rear side, and the sealing reliability is reduced;
2. only the segment difference and the waveform are overlapped to form a sealing structure, although the segment difference part has better compensation on the lifting amount of the cylinder cover, the expansion of the part between the cylinder cover and the cylinder body is obvious at high temperature, the waveform compression on the segment difference of the part between the gasket and the cylinder is too heavy, the machine is stopped and started repeatedly, the waveform compensation of the part between the cylinders is reduced after a long time, and the sealing performance is correspondingly reduced;
3. the metal sheet is warped obviously after being turned over and uniformly pressed independently, and the assembly process between the plate and other plates is seriously influenced.
The utility model has the following contents:
the present invention is directed to overcome the above-mentioned deficiencies of the prior art and to provide a laminated metal cylinder head gasket.
The utility model provides a technical scheme is: a laminated metal cylinder cover gasket comprises a gasket body, a cylinder opening, oil and water holes, wherein the gasket body is composed of a plurality of layers of metal plates; the metal plate is characterized in that the multilayer metal plate is an upper metal thick plate, a middle metal thin plate, a middle metal thick plate and a lower metal thick plate, and the upper metal thick plate and the lower metal thick plate can be one layer or multiple layers; the multilayer metal plate is provided with a punched hole, the upper cylinder opening parts of the upper metal thick plate, the middle metal thick plate and the lower metal thick plate are respectively pressed with two waveforms, the middle metal thin plate is bent by 180 degrees and wraps and presses one waveform of the middle metal thick plate to connect the two layers of metal plates together, and the upper metal thick plate and the lower metal thick plate are respectively stacked above and below the two layers of metal plates to form a cylinder opening sealing structure of the cylinder cover gasket; the metal sheet at the sealing structure of the cylinder opening is flanged, and the thickness of the metal sheet is higher than that of the gasket body, so that a section difference is formed.
The utility model has the advantages as follows: 1. the segment difference part is superposed with a waveform, so that the compensation of the segment difference part on the lifting amount of the cylinder cover can be well improved; 2. the rear side of the segment difference is provided with a wave shape which can assist the sealing of the cylinder opening, and the positive sealing effect is achieved when the compression sealing performance of the wave shape on the segment difference is reduced; 3. the flanging of the thin plate is connected with the thick plate, the defects that the thin plate is warped after being flanged independently and is not easy to be connected with other plates can be effectively overcome by utilizing the strength of the thick plate, and the manufacturability of assembling and processing the gasket is improved; 4. the width of the two waveforms at the sealing structure can be gradually adjusted to adapt to the problem of uneven stress of the cylinder opening in a circle, thereby ensuring the reliability of sealing.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view taken along line a-a of fig. 1.
The specific implementation mode is as follows:
the present invention will be described in detail with reference to the accompanying drawings, and the examples are only for explaining the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, taking four metal plates as an example, a laminated metal cylinder head gasket comprises a gasket body, a cylinder opening, oil holes and water holes, wherein the gasket body is composed of four metal plates, namely an upper metal thick plate 1, a middle metal thin plate 2, a middle metal thick plate 3 and a lower metal thick plate 4; punching four layers of metal plates, respectively pressing two waveforms at the cylinder opening parts of an upper metal thick plate 1, a middle metal thick plate 3 and a lower metal thick plate 4, wrapping and pressing one waveform of the middle metal thick plate 3 by the middle metal thin plate 2 per se through 180-degree bending, connecting the two layers of metal plates together, and then respectively stacking the upper metal thick plate 1 and the lower metal thick plate 4 above and below the two layers of metal plates to form a cylinder opening sealing structure 6 of the cylinder cover gasket; the metal sheet 2 at the cylinder opening sealing structure 6 is flanged by itself and has a thickness higher than that of the gasket body, so that a step difference 5 is formed.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (1)
1. A laminated metal cylinder cover gasket comprises a gasket body, a cylinder opening, oil and water holes, wherein the gasket body is composed of a plurality of layers of metal plates; the metal plate is characterized in that the multilayer metal plate comprises an upper metal thick plate (1), a middle metal thin plate (2), a middle metal thick plate (3) and a lower metal thick plate (4), and the upper metal thick plate (1) and the lower metal thick plate (4) can be one layer or multiple layers; the multilayer metal plate is provided with punched holes, two waves are respectively pressed at the upper cylinder opening parts of the upper metal thick plate (1), the middle metal thick plate (3) and the lower metal thick plate (4), the middle metal thin plate (2) is bent by 180 degrees and wrapped and pressed with one wave of the middle metal thick plate (3) to connect the two layers of metal plates together, and the upper metal thick plate (1) and the lower metal thick plate (4) are respectively stacked above and below the two layers of metal plates to form a cylinder opening sealing structure (6) of the cylinder cover gasket; the metal thin plate (2) at the position of the cylinder opening sealing structure (6) is flanged, the thickness of the metal thin plate is higher than that of the gasket body, and a section difference (5) is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920866784.4U CN210152805U (en) | 2019-06-11 | 2019-06-11 | Laminated metal cylinder cover gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920866784.4U CN210152805U (en) | 2019-06-11 | 2019-06-11 | Laminated metal cylinder cover gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210152805U true CN210152805U (en) | 2020-03-17 |
Family
ID=69762341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920866784.4U Active CN210152805U (en) | 2019-06-11 | 2019-06-11 | Laminated metal cylinder cover gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210152805U (en) |
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2019
- 2019-06-11 CN CN201920866784.4U patent/CN210152805U/en active Active
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