A laminated cylinder head gasket

By introducing positioning components and magnetic baffles into the stacked cylinder head gaskets, the problem of aligning the cylinder head with the cylinder head gasket holes is solved, enabling fast and stable cylinder head gasket installation and improving installation efficiency and stability.

CN224315080UActive Publication Date: 2026-06-02CHANGZHOU QUNXIAN MACHINERY PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU QUNXIAN MACHINERY PARTS CO LTD
Filing Date
2025-08-22
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing stacked cylinder head gaskets lack positioning aids during installation, making it difficult to align the cylinder head with the cylinder head gasket holes and causing them to slip off easily, affecting installation efficiency and stability.

Method used

A stacked cylinder head gasket is designed, comprising a cylinder head gasket, functional components, and a positioning component. The positioning component consists of first and second baffles, each with a magnetic layer for quickly positioning the cylinder head gasket and fixing it to the cylinder block and cylinder head via magnetic adsorption. It is then connected with bolts to achieve rapid installation.

Benefits of technology

It enables rapid positioning and secure connection of cylinder head gaskets, avoiding difficulties in aligning cylinder head holes and slippage issues, thus improving installation efficiency and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses a stacked cylinder head gasket, belonging to the field of mechanical technology. It mainly includes a cylinder head gasket with an upper gasket, a central gasket, and a lower gasket. Functional components and positioning components are provided on the cylinder head gasket. The positioning components include at least two sets of first baffles, respectively disposed at the left and right ends of the upper and lower gaskets; at least two sets of second baffles are disposed on the front and rear sides of the upper and lower gaskets. This stacked cylinder head gasket, through the positioning components, allows for quick engagement of the cylinder head gasket onto the cylinder block. Subsequently, the cylinder head is quickly engaged with the positioning components, and bolts are directly inserted into the positioning holes, contacting the threaded holes in the cylinder block. The cylinder block and cylinder head are then connected, avoiding the need for extensive effort in aligning the holes and preventing the cylinder head gasket from accidentally falling off, thus achieving the effect of positioning the cylinder head gasket.
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Description

Technical Field

[0001] This application relates to the field of mechanical technology, specifically to a stacked cylinder head gasket. Background Technology

[0002] The cylinder head gasket is a crucial sealing component in an engine. It is located between the cylinder head and the cylinder block and plays a key role in sealing the cylinder, preventing air, water, and oil leaks, and ensuring the normal operation of the engine. Among them, the stacked cylinder head gasket is a special type of cylinder head gasket, which has a longer service life than the ordinary cylinder head gasket.

[0003] For example, the patent with publication number CN203146139U specifically discloses a stacked cylinder head gasket, which is made of four layers of stainless steel plates stacked together, and a reinforcing ring gasket is also stacked around the cylinder bore to improve the strength around the cylinder bore, which can effectively control deformation and thus improve the sealing performance of the cylinder head gasket during use.

[0004] When installing a cylinder head gasket, the gasket is first placed on the cylinder block, then the cylinder head is placed on the upper surface of the gasket, and multiple sets of bolts are inserted into the bolt holes of the gasket and then connected to the bolt holes of the cylinder block.

[0005] While the aforementioned patent can achieve the sealing performance of the cylinder head gasket during use, it does not include any components for auxiliary positioning of the cylinder head gasket during installation. This means that when placing the cylinder head on the cylinder head gasket, the operator must pay close attention to aligning the holes in the cylinder head with the holes in the cylinder head gasket, and the movement must be minimal to prevent the cylinder head gasket from slipping off.

[0006] Therefore, it is necessary to provide a stacked cylinder head gasket to solve the above problems.

[0007] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0008] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a stacked cylinder head gasket that achieves the effect of positioning the cylinder head gasket.

[0009] The technical solution adopted by this application to solve its technical problem is: a stacked cylinder head gasket, including a cylinder head gasket sheet having an upper gasket, a central gasket, and a lower gasket; a functional component disposed on the cylinder head gasket; and a positioning component disposed on the cylinder head gasket, the positioning component including: at least two sets of first baffles, the at least two first baffles being respectively disposed on the left and right ends of the upper and lower gaskets; and at least two sets of second baffles, the at least two sets of second baffles being respectively disposed on the front and rear sides of the upper and lower gaskets.

[0010] Furthermore, both the first and second baffles are provided with magnetic layers.

[0011] Furthermore, the functional components include at least two sets of cylinder bores extending through the cylinder head gasket.

[0012] Furthermore, the cylinder head gasket has at least two sets of water holes.

[0013] Furthermore, the cylinder head gasket has at least two sets of oil holes.

[0014] Furthermore, at least two sets of positioning holes are provided through the cylinder head gasket.

[0015] The beneficial effects of this application are as follows: The stacked cylinder head gasket provided by this application can quickly snap the cylinder head gasket onto the cylinder block by setting the positioning component, and then quickly snap the cylinder head onto the positioning component. Then, the bolt is directly inserted into the positioning hole and contacts the threaded hole of the cylinder block. Then, the cylinder block and cylinder head are connected to the interface, avoiding the need to spend a lot of effort on aligning the hole and preventing the cylinder head gasket from falling off due to accidental contact, thus achieving the effect of positioning the cylinder head gasket.

[0016] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0018] In the attached diagram:

[0019] Figure 1 This is an overall schematic diagram of a stacked cylinder head gasket according to this application;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 for Figure 2 Enlarged view of point C in the middle;

[0022] Figure 4 for Figure 1 Enlarged view of point B in the middle;

[0023] The following are the labeling elements in the figure:

[0024] 1. Cylinder gasket; 101. Upper gasket; 102. Lower gasket; 103. Central gasket; 2. Functional component; 21. Positioning hole; 22. Cylinder bore; 23. Water hole; 24. Oil hole; 3. Positioning component; 31. First baffle; 32. Second baffle; 33. Connecting plate; 34. Magnetic layer. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] like Figure 1 and Figure 3 As shown, this application provides a stacked cylinder head gasket, including a cylinder head gasket 1, which is formed by pressing multiple sets of gaskets, having a core gasket 103 located in the middle layer, and an upper gasket 101 and a lower gasket 102 located on the upper and lower surfaces of the core gasket 103.

[0028] It should be noted that the pressing principle of the cylinder gasket 1 is existing technology, and will not be elaborated on here;

[0029] A positioning component 3 is provided on the cylinder head gasket 1, which is adapted to quickly align the cylinder head gasket 1 with the cylinder block and cylinder head.

[0030] like Figures 1-2 As shown, the positioning component 3 includes a first baffle 31 respectively disposed at the left and right ends of the upper shim 101 and the lower shim 102, and two sets of second baffles 32 disposed on the front and rear sides of the upper shim 101 and the lower shim 102. The multiple sets of first baffles 31 and multiple sets of second baffles 32 form a four-sided frame shape, which is adapted to the four sides of the cylinder block and the cylinder head.

[0031] Therefore, when installing the cylinder head gasket 1, the four sides of the lower gasket 102 are snapped onto the cover to position the cylinder head gasket 1. Then, the cylinder block is snapped into the four sides of the upper gasket 101, which can quickly position the cylinder block and the cylinder head gasket 1, avoiding the need to constantly pay attention to whether the holes in the cylinder head and the cylinder head gasket are aligned, and avoiding the situation where the cylinder head gasket 1 slips off due to accidental contact.

[0032] like Figure 4As shown, a magnetic layer 34 is provided on both the first baffle 31 and the second baffle 32. The magnetic layer 34 has a certain attraction force, so that when the first baffle 31 and the second baffle 32 come into contact with the cylinder block or cylinder head, they can be adsorbed onto the cylinder block or cylinder head, which further improves the stability of the cylinder head gasket 1.

[0033] A connecting plate 33 can be provided on the outer wall between the first baffle 31 of the upper gasket 101 and the first baffle 31 of the lower gasket 102. The connecting plate 33 and the two sets of first baffles 31 are provided with screw holes, and screws are provided in the screw holes to further enhance the stability of the cylinder gasket 1.

[0034] A functional component 2 is provided on the cylinder head gasket 1, which is suitable for normal use after the cylinder head gasket is installed.

[0035] like Figure 1 As shown, the functional component 2 includes multiple sets of cylinder bores 22 that penetrate the cylinder head gasket 1 so as to form a closed combustion chamber together with the piston top inside the cylinder head and cylinder body. The cylinder head gasket 1 is provided with multiple sets of water holes 23 so as to form a complete cooling circulation loop with the cooling system in the cylinder body and cylinder head.

[0036] Multiple sets of oil holes 24 are provided on the cylinder head gasket 1 to facilitate the formation of a complete lubricating oil circulation loop with the lubrication system in the cylinder block and cylinder head.

[0037] Multiple sets of positioning holes 21 are provided through the cylinder head gasket 1. These positioning holes 21 are suitable for bolts to pass through, thereby connecting the cylinder block and the cylinder head.

[0038] It should be noted that other functional holes can be customized on the cylinder head gasket according to the engine type, which will not be elaborated on here;

[0039] In summary, when using the cylinder head gasket, the four sides of the lower gasket 102 are inserted into the cylinder block, and the cylinder head is inserted into the four sides of the upper gasket 101. At the same time, the magnetic layer 34 is attracted to the cylinder block and the cylinder head, further improving the stability of the cylinder head gasket 1. Then, the cylinder head and the cylinder block are connected with bolts, and the cylinder head gasket can be put into use.

[0040] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A stacked cylinder head gasket, characterized in that: include: Cylinder gasket (1), the cylinder gasket (1) having an upper gasket (101), a middle core gasket (103) and a lower gasket (102); Functional component (2), which is disposed on the cylinder head gasket (1); A positioning component (3) disposed on the cylinder head gasket (1), the positioning component (3) comprising: At least two sets of first baffles (31) are respectively disposed at the left and right ends of the upper gasket (101) and the lower gasket (102); At least two sets of second baffles (32) are respectively disposed on the front and rear sides of the upper gasket (101) and the lower gasket (102).

2. The laminated cylinder head gasket according to claim 1, characterized in that: Both the first baffle (31) and the second baffle (32) are provided with a magnetic layer (34).

3. The laminated cylinder head gasket according to claim 1, characterized in that: The functional component (2) includes at least two sets of cylinder bores (22) that penetrate the cylinder head gasket (1).

4. A stacked cylinder head gasket according to claim 3, characterized in that: The cylinder head gasket (1) is provided with at least two sets of water holes (23).

5. A stacked cylinder head gasket according to claim 4, characterized in that: The cylinder head gasket (1) is provided with at least two sets of oil holes (24).

6. A stacked cylinder head gasket according to claim 5, characterized in that: At least two sets of positioning holes (21) are provided through the cylinder head gasket (1).