Wear-resistant cylinder gasket

Abstract

The utility model provides a kind of wear-resistant cylinder gasket, belong to engine sealing technical field.It solves the positioning accuracy of existing cylinder gasket during assembly process is not high, and the problem of easy to appear interlayer misplacement.This wear-resistant cylinder gasket, including cylinder gasket main body, the cylinder gasket main body is equipped with several cylinder holes, cylinder gasket main body is composed of cylinder gasket base body, protective steel sheet and sealing gasket, the upper end surface of cylinder gasket base body is equipped with mounting groove, protective steel sheet and sealing gasket are sequentially stacked in the mounting groove, mounting groove is equipped with multiple flange portions that are axially upwardly protruding, sealing gasket is equipped with the positioning hole that is matched with the flange portion, protective steel sheet is equipped with the recessed portion that is matched with the flange portion, and the positioning installation of protective steel sheet is realized by the cooperation of recessed portion and flange portion.The utility model has the advantages of accurate positioning, avoid misplacement leakage and quick assembly.

Description

Technical Field

[0001] This utility model belongs to the field of engine sealing technology, and relates to a cylinder head gasket, and particularly to a wear-resistant cylinder head gasket. Background Technology

[0002] Traditional cylinder head gasket designs often employ a single metal or composite material structure, relying primarily on bolt tightening or simple interlocking fits for positioning, lacking effective anti-misalignment and wear-resistant mechanisms. During use, due to the high temperature, high pressure, and frequent combustion impacts within the cylinder, the cylinder head gasket is prone to wear, deformation, or displacement, leading to seal failure and affecting engine performance and reliability. Furthermore, traditional cylinder head gaskets suffer from low positioning accuracy during assembly, easily resulting in interlayer misalignment, further reducing sealing effectiveness and service life. Therefore, the industry has a continuous technological demand for cylinder head gaskets with high-precision positioning, excellent wear resistance, and structural stability. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a wear-resistant cylinder head gasket to solve these issues.

[0004] The purpose of this utility model can be achieved through the following technical solution: a wear-resistant cylinder head gasket, including a cylinder head gasket body, the cylinder head gasket body having a plurality of cylinder holes, characterized in that the cylinder head gasket body is composed of a cylinder head gasket substrate, a protective steel sheet and a sealing gasket; The upper end face of the cylinder head gasket base is provided with an installation groove, and the protective steel sheet and sealing gasket are stacked in sequence in the installation groove; The mounting groove is provided with multiple axially upward protruding flanges, and the sealing gasket is provided with positioning holes that mate with the flanges. The protective steel sheet has a recess that mates with the flange, and the positioning and installation of the protective steel sheet is achieved through the mating of the recess and the flange.

[0005] In the aforementioned wear-resistant cylinder head gasket, the flange portion and the cylinder head gasket substrate are integrally formed.

[0006] In the aforementioned wear-resistant cylinder head gasket, the thickness of both the protective steel sheet and the sealing gasket is less than the depth of the mounting groove, and the thickness of the protective steel sheet is less than the thickness of the sealing gasket.

[0007] In the aforementioned wear-resistant cylinder head gasket, the flange portion is a cylindrical protrusion, and multiple flange portions are symmetrically distributed around the cylinder bore.

[0008] In the aforementioned wear-resistant cylinder head gasket, the recessed portion on the protective steel sheet is a stamped pit, the shape of which matches the top shape of the flange portion.

[0009] Compared with existing technologies, this wear-resistant cylinder head gasket achieves accurate positioning of each layer through the cooperation of the flange, positioning hole and recess, avoiding misalignment and leakage. The protective steel sheet can significantly improve wear resistance and extend service life. Its one-piece molded flange enhances the overall structural stability and has strong resistance to deformation. The concave-convex mating structure facilitates quick assembly and improves production efficiency. At the same time, the sealing gasket effectively ensures the cylinder head sealing effect and is suitable for the harsh operating conditions of high-performance internal combustion engines. Attached Figure Description

[0010] Figure 1 This is an exploded three-dimensional structural diagram of the wear-resistant cylinder head gasket.

[0011] Figure 2 This is a schematic diagram of the three-dimensional structure of the sealing gasket of this wear-resistant cylinder head gasket.

[0012] In the figure: 1. Cylinder head gasket base; 2. Protective steel sheet; 3. Sealing gasket; 4. Flange; 5. Positioning hole; 6. Recess. Detailed Implementation

[0013] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0014] like Figure 1 , Figure 2 As shown, this wear-resistant cylinder head gasket includes a cylinder head gasket body with several cylinder bores. The cylinder head gasket body is composed of a cylinder head gasket base 1, a protective steel sheet 2, and a sealing gasket 3. The upper end face of the cylinder head gasket base 1 is provided with an installation groove. The protective steel sheet 2 and the sealing gasket 3 are stacked sequentially in the installation groove. The installation groove is provided with multiple axially upward protruding flange portions 4. The sealing gasket 3 is provided with positioning holes 5 that mate with the flange portions 4. The protective steel sheet 2 is provided with recessed portions 6 that mate with the flange portions 4. The positioning and installation of the protective steel sheet 2 are achieved through the mating of the recessed portions 6 and the flange portions 4.

[0015] The flange portion 4 and the cylinder head gasket base 1 are integrally formed. The thickness of the protective steel sheet 2 and the sealing gasket 3 is less than the depth of the mounting groove, and the thickness of the protective steel sheet 2 is less than the thickness of the sealing gasket 3. The flange portion 4 is a cylindrical protrusion, and multiple flange portions 4 are symmetrically distributed around the cylinder bore. The recess 6 on the protective steel sheet 2 is a stamped pit, and its shape is adapted to the top shape of the flange portion 4.

[0016] This wear-resistant cylinder head gasket achieves multiple technical advantages, including high-precision positioning, excellent wear resistance, strong structural stability, easy assembly, and optimized sealing performance, primarily through a multi-layer composite structure and precise positioning design. The main body of the cylinder head gasket consists of three layers: a cylinder head gasket substrate 1, a protective steel sheet 2, and a sealing gasket 3. The flange 4 within the mounting groove engages with the positioning holes 5 on the sealing gasket 3 and the recesses 6 on the protective steel sheet 2, ensuring accurate positioning and secure installation between the layers. The flange 4 protrudes upwards, penetrates the sealing gasket 3, and embeds into the recesses 6 of the protective steel sheet 2, forming a mechanical interlock to prevent relative displacement of the layers during use. The protective steel sheet 2, located below the sealing gasket 3, directly bears the cylinder pressure and friction. Its high hardness and wear resistance effectively protect the sealing gasket 3 and the substrate, extending the overall service life.

[0017] The wear-resistant cylinder head gasket achieves accurate positioning of each layer through the cooperation of the flange 4 with the positioning hole 5 and the recess 6, avoiding misalignment and leakage. The protective steel sheet 2 can significantly improve wear resistance and extend service life. Its one-piece molded flange 4 enhances the overall structural stability and has strong resistance to deformation. The concave-convex mating structure facilitates quick assembly and improves production efficiency. At the same time, the sealing gasket 3 effectively ensures the cylinder head sealing effect and is suitable for the harsh operating conditions of high-performance internal combustion engines.

[0018] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0019] Although this document uses a considerable amount of technical terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A wear-resistant cylinder head gasket, comprising a cylinder head gasket body having a plurality of cylinder bores thereon, characterized in that, The cylinder head gasket body is composed of a cylinder head gasket base (1), a protective steel sheet (2), and a sealing gasket (3); The upper end face of the cylinder head gasket base (1) is provided with an installation groove, and the protective steel sheet (2) and the sealing gasket (3) are stacked in the installation groove in sequence; The mounting groove is provided with multiple axially upward protruding flanges (4), and the sealing gasket (3) is provided with positioning holes (5) that cooperate with the flanges (4). The protective steel sheet (2) is provided with a recess (6) that cooperates with the flange (4). The positioning and installation of the protective steel sheet (2) are achieved by the cooperation between the recess (6) and the flange (4).

2. The wear-resistant cylinder head gasket according to claim 1, characterized in that, The flange (4) and the cylinder head gasket base (1) are integrally formed.

3. The wear-resistant cylinder head gasket according to claim 1, characterized in that, The thickness of the protective steel sheet (2) and the sealing gasket (3) is less than the depth of the mounting groove, and the thickness of the protective steel sheet (2) is less than the thickness of the sealing gasket (3).

4. The wear-resistant cylinder head gasket according to claim 1, characterized in that, The flange portion (4) is a cylindrical protrusion, and multiple flange portions (4) are symmetrically distributed around the cylinder bore.

5. A wear-resistant cylinder head gasket according to claim 1, characterized in that, The recess (6) on the protective steel sheet (2) is a stamped pit, the shape of which is adapted to the top shape of the flange (4).

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