A gas compressor cylinder head gasket

Abstract

The utility model provides a kind of gas compressor cylinder cover gasket, it is related to gas compressor technical field, including metal gasket one and metal gasket two, the side of metal gasket one and metal gasket two mutually close is equipped with the concentric fitting circle line that can mutually fit, the concentric fitting circle line and bolt hole are equipped with bolt hole and cavity hole according to the position of gas compressor bolt hole and according to the cavity shape of gas compressor inner cavity;The utility model is equipped with bolt hole and cavity hole according to the position of gas compressor bolt hole and according to the cavity shape of gas compressor inner cavity by the concentric fitting of double metal gasket high-rigidity frame, solve the problem of centering and utilize zigzag line to enhance air tightness, and then form first sealing, by multiple groups of rubber ring accurate positioning to strengthen bolt hole and cavity edge sealing, effectively prevent internal medium leakage, outer ring elastic rubber ring compensates uneven metal surface and blocks external pollutants, overall structure synergistic effect, ensure long-term sealing reliability and durability under high pressure, high temperature and vibration working condition.

Description

Technical Field

[0001] This utility model relates to the field of gas compressor technology, and in particular to a gas compressor cylinder head gasket. Background Technology

[0002] A gas compressor cylinder head gasket is a sealing element installed between the compressor cylinder head and the cylinder body. Its main function is to fill the microscopic unevenness of the mating surface. Under the action of bolt preload, it undergoes plastic or elastic deformation, thereby forming an effective sealing barrier to prevent leakage of high-pressure gas inside the compressor during operation. At the same time, it isolates external contaminants from entering the cavity, ensuring that the compression process is carried out efficiently at the designed pressure and temperature.

[0003] In the prior art, the gaskets of gas compressor cylinder heads are mostly composed of a combination of metal gaskets and rubber seals. Although the rubber seals can seal the gap between the metal gaskets and the cylinder head and cylinder to a certain extent, the high temperature generated by the gas compressor during operation often causes the rubber seals to deform, resulting in cracks, irreversible deformation, etc. In this case, gasket leakage may occur, and improvements are needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a gas compressor cylinder head gasket. By designing two metal gaskets that fit together through concentric circular patterns, combined with multiple sealing rings, this invention achieves a multi-layered sealing effect, greatly reducing the risk of decreased sealing performance due to heat-induced deformation of the rubber sealing rings.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a gasket for a gas compressor cylinder head, comprising a first metal gasket and a second metal gasket, wherein the first metal gasket and the second metal gasket are provided with concentric interlocking circular patterns on their adjacent sides, and the concentric interlocking circular patterns are provided with bolt holes opened according to the positions of the bolt holes of the gas compressor and cavity holes opened according to the shape of the internal cavity of the gas compressor.

[0006] In a preferred embodiment, the metal gaskets 1 and 2 corresponding to the bolt hole have recessed grooves for bolt hole rubber rings on their opposite sides, and bolt hole sealing rubber rings are provided in the recessed grooves. The metal gaskets 1 and 2 corresponding to the cavity hole have recessed grooves for cavity rubber rings on their opposite sides, and cavity sealing rubber rings are provided in the recessed grooves. The bolt hole sealing rubber rings and cavity sealing rubber rings are connected by an inner sealing edge rubber ring. The metal gaskets 1 and 2 corresponding to the inner sealing edge rubber rings have recessed grooves for inner sealing edges.

[0007] In a preferred embodiment, an outer sealing groove is provided at the outer edge of the side of the metal gasket one and the metal gasket two that are far apart from each other, according to the edge shape of the air compressor, and an outer sealing rubber ring is embedded in the outer sealing groove.

[0008] In a preferred embodiment, both the bolt hole and the cavity hole are provided with sealing rings cut to fit the shape and size of the bolt hole and the cavity hole.

[0009] In a preferred embodiment, the sealing ring includes a cuttable ring, and concentric circles are provided on both sides of the cuttable ring.

[0010] In a preferred embodiment, the thickness of the cuttable rubber ring is greater than the thickness of the metal gasket one and the metal gasket two after they are fitted together.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This utility model consists of two metal gaskets, one and two, which interlock with concentric circular patterns to form a high-rigidity main frame. This not only solves the alignment problem during installation, but the tortuous patterns themselves also increase the resistance to gas leakage, forming the first seal. Furthermore, the bolt hole sealing ring and the cavity sealing ring are precisely positioned through the bolt hole sealing ring groove and the cavity sealing ring groove, and are connected by the inner sealing edge ring in the inner sealing edge groove to form a network, which strengthens the sealing of the bolt fastening point and the edge of the high-temperature and high-pressure cavity hole, effectively preventing the leakage of internal media. The outer sealing edge ring in the outer sealing edge groove acts as the outermost elastic barrier, which not only compensates for the microscopic unevenness of the metal contact surface, but also prevents the intrusion of external contaminants. Ultimately, all these structures work together to achieve extremely high sealing reliability and durability of the cylinder head gasket under high pressure, high temperature and long-term vibration conditions. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a gas compressor cylinder head gasket provided by this utility model.

[0013] Figure 2 This is a half-sectional structural diagram of a gas compressor cylinder head gasket provided by this utility model.

[0014] Figure 3 This is a schematic diagram showing the disassembled structure of a gas compressor cylinder head gasket provided by this utility model.

[0015] Figure 4 This is a schematic diagram of the bolt hole structure of a gas compressor cylinder head gasket provided by this utility model.

[0016] Legend: 1. Metal gasket one; 2. Sealing ring; 3. Metal gasket two; 4. Concentric interlocking circular pattern; 5. Plug hole; 6. Plug hole ring groove; 7. Cavity hole; 8. Cavity ring groove; 9. Inner sealing groove; 10. Outer sealing groove; 11. Outer sealing ring; 12. Plug hole sealing ring; 13. Cavity sealing ring; 14. Inner sealing ring; 201. Cuttable rubber ring; 202. Concentric circle pattern. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0018] like Figures 1 to 4 As shown, this utility model provides a technical solution: a gasket for a gas compressor cylinder head, including a metal gasket 1 and a metal gasket 2 3. The sides of the metal gasket 1 and the metal gasket 2 3 that are close to each other have concentric interlocking circular patterns 4 that can fit together. The concentric interlocking circular patterns 4 have bolt holes 5 formed according to the positions of the gas compressor bolt holes and cavity holes 7 formed according to the shape of the internal cavity of the gas compressor. This design achieves precise alignment and radial limiting of the metal gasket 1 and the metal gasket 2 3 through the concentric interlocking circular patterns 4, preventing misalignment during installation and use. During the process, misalignment occurs, and after the concentric interlocking circular pattern 4 is interlocked, the gas needs to undergo multiple turns when passing through the gap between the metal gaskets, thereby increasing the resistance of the gas passing through the gap between the metal gaskets. This provides a stable reference frame for the entire sealing assembly and enhances the sealing effect. Based on this reference, the bolt holes 5, which are opened according to the position of the gas compressor bolt holes, ensure that the gaskets can be aligned with the bolts of the cylinder block and cylinder head, ensuring that the tightening force is applied evenly. Meanwhile, the cavity holes 7, which are opened according to the shape of the internal cavity of the gas compressor, precisely match the internal space of the compressor and avoid obstructing the airflow passage. In this design, a groove 6 for a plug hole rubber ring is recessed on the side of the metal gasket 1 and metal gasket 2 3 that are far apart from each other, and a plug hole sealing rubber ring 12 is installed in the groove 6. A cavity rubber ring groove 8 is recessed on the side of the metal gasket 1 and metal gasket 2 3 that are far apart from each other, and a cavity sealing rubber ring 13 is installed in the groove 8. The plug hole sealing rubber ring 12 and the cavity sealing rubber ring 13 are connected by an inner sealing edge rubber ring 14. An inner sealing edge groove 9 is recessed on the metal gasket 1 and metal gasket 2 3 corresponding to the inner sealing edge rubber ring 14. This design utilizes the fact that the metal gasket 1 and metal gasket 2 3 are recessed on the groove 6. The bolt hole 5 and the cavity hole 7 are respectively recessed and recessed to form a bolt hole rubber ring groove 6 and a cavity rubber ring groove 8, providing precise positioning and accommodation space for the bolt hole sealing rubber ring 12 and the cavity sealing rubber ring 13 to be embedded, ensuring that the rubber rings will not shift when under pressure. The bolt hole sealing rubber ring 12 and the cavity sealing rubber ring 13 are connected by an inner sealing edge rubber ring 14. At the same time, an inner sealing edge groove 9 is formed at the corresponding position of the inner sealing edge rubber ring 14 to fix the connecting rubber ring. Thus, a continuous and closed annular sealing network is formed inside the metal skeleton composed of metal gaskets, effectively preventing high pressure gas from leaking from the bolt hole 5 and working medium from leaking from the edge of the cavity hole 7. Furthermore, an outer sealing groove 10 is provided at the outer edge of the side where the metal gasket 1 and the metal gasket 2 are far apart, according to the edge shape of the gas compressor. An outer sealing ring 11 is fitted into the outer sealing groove 10. This design, by precisely opening the outer sealing groove 10 at the outer edge of the side where the metal gasket 1 and the metal gasket 2 are far apart, according to the edge shape of the gas compressor, and matching and fitting a special outer sealing ring 11 into the groove, creates a continuous elastic sealing barrier at the outer boundary of the gasket assembly that fits tightly with the contour of the compressor housing. This prevents high-pressure gas inside the compressor from leaking from the outermost mating surface where the metal gasket contacts the cylinder or cylinder head. At the same time, the elastomeric properties of the outer sealing ring 11 also compensate for minor unevenness of the metal surface, enhances the resistance to external environmental impurities, and improves the long-term reliability of the entire sealing system under complex operating conditions.

[0019] In this embodiment, the concentric interlocking circular patterns 4 on the metal gasket 1 and the metal gasket 2 achieve precise alignment and radial positioning of the two. At the same time, the patterns increase the tortuosity of the gas leakage path to improve the sealing resistance, forming a stable metal skeleton with a preliminary sealing effect. Furthermore, the bolt holes 5 and cavity holes 7 on the metal gasket 1 and the metal gasket 2 ensure compatibility with the compressor body structure. Meanwhile, by creating a bolt hole rubber ring groove 6 around the bolt hole 5 and embedding a bolt hole sealing rubber ring 12, and creating a cavity rubber ring groove 8 around the cavity hole 7 and embedding a cavity sealing rubber ring 13, and then connecting the two with an inner sealing edge rubber ring 14 and fixing them in the inner sealing edge groove 9, a continuous and closed annular elastic sealing network is constructed in the internal key area to specifically prevent high-pressure gas from leaking from the bolt and the cavity edge. Finally, by creating an outer sealing edge groove 10 according to the contour on the outer edge of the metal gasket and embedding an outer sealing edge rubber ring 11, the outermost sealing barrier is formed, which compensates for the unevenness of the metal surface and resists external contamination. In the end, they together constitute a composite sealing structure with a rigid metal skeleton for positioning and multi-level elastic sealing rings working together, achieving a highly reliable seal from the internal key point to the outer edge. Example

[0020] like Figures 1 to 4 As shown, both the bolt hole 5 and the cavity hole 7 are provided with sealing rings 2 cut according to the shape and size of the bolt hole 5 and the cavity hole 7. The sealing rings 2 include cuttable rings 201. Both sides of the cuttable rings 201 are provided with concentric circles 202. The thickness of the cuttable rings 201 is greater than the thickness of the metal gasket 1 and the metal gasket 2 after they are fitted together.

[0021] In this embodiment, a sealing ring 2, precisely cut to its shape and size, is provided at the inner edge of the bolt hole 5 and the cavity hole 7 to enhance the sealing performance of the bolt hole 5 and the cavity hole 7. The main body of the sealing ring 2 is a cuttable ring 201. The concentric circular patterns 202 on both sides of the cuttable ring 201 can form multiple tight concentric contact bands with the contact surface during installation. The thickness of the cuttable ring 201 is greater than the total thickness of the metal gasket 1 and the metal gasket 2 3 after they are fitted together. Therefore, when the cylinder head is tightened by bolts, the cuttable ring 201 will be compressed and deformed first. The concentric circular patterns 202 on the cuttable ring 201 will be flattened and tightly fill the micro gaps. This design forms the first elastic sealing line at the boundary between the high-pressure gas channel and the bolt channel, effectively preventing the medium from leaking longitudinally along the hole wall and greatly improving the sealing ability of the bolt hole 5 and the cavity hole 7.

[0022] Working principle: like Figures 1 to 4As shown, in the production of this utility model, firstly, according to the edge shape of the cylinder head and cylinder body of the gas compressor, the metal gasket 1 and sealing ring 2 are cut while retaining the center of the concentric interlocking circular pattern 4. At the same time, according to the structure of the cylinder head and cylinder body, the bolt hole 5 and the cavity hole 7 are opened. Then, according to the structure of the cylinder head and cylinder body, the bolt hole sealing ring groove 6, the cavity sealing ring groove 8, the inner sealing edge groove 9 and the outer sealing edge groove 10 are opened. According to the shape of the bolt hole sealing ring groove 6, the cavity sealing ring groove 8, the inner sealing edge groove 9 and the outer sealing edge groove 10, the outer sealing edge ring 11, the bolt hole sealing ring 12, the cavity sealing ring 13 and the inner sealing edge ring 14 are cut. At the same time, according to the connection structure of the cylinder head and cylinder body and the edge shape of the cavity, the sealing ring 2 is cut in a coaxial manner. Finally, all the structures are assembled and it can be used.

[0023] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A gasket for a gas compressor cylinder head, characterized in that, It includes a metal gasket one (1) and a metal gasket two (3). The metal gasket one (1) and the metal gasket two (3) have concentric interlocking circular patterns (4) that can fit into each other on their adjacent sides. The concentric interlocking circular patterns (4) have bolt holes (5) opened according to the position of the bolt holes of the gas compressor and cavity holes (7) opened according to the shape of the internal cavity of the gas compressor.

2. The gasket for a gas compressor cylinder head according to claim 1, characterized in that: The metal gasket 1 (1) and metal gasket 2 (3) corresponding to the bolt hole (5) have a recessed groove (6) for the bolt hole rubber ring on their respective sides. The bolt hole rubber ring groove (6) contains a bolt hole sealing rubber ring (12). The metal gasket 1 (1) and metal gasket 2 (3) corresponding to the cavity hole (7) have a recessed groove (8) for the cavity rubber ring on their respective sides. The cavity rubber ring groove (8) contains a cavity sealing rubber ring (13). The bolt hole sealing rubber ring (12) and the cavity sealing rubber ring (13) are connected by an inner sealing edge rubber ring (14). The metal gasket 1 (1) and metal gasket 2 (3) corresponding to the inner sealing edge rubber ring (14) have an inner sealing edge groove (9) recessed on their respective sides.

3. A gasket for a gas compressor cylinder head according to claim 1, characterized in that: The outer edge of the metal gasket 1 (1) and the metal gasket 2 (3) is provided with an outer sealing groove (10) according to the edge shape of the air compressor, and an outer sealing rubber ring (11) is embedded in the outer sealing groove (10).

4. A gasket for a gas compressor cylinder head according to claim 1, characterized in that: Both the bolt hole (5) and the cavity hole (7) are provided with sealing rings (2) cut according to the shape and size of the bolt hole (5) and the cavity hole (7).

5. A gasket for a gas compressor cylinder head according to claim 4, characterized in that: The sealing ring (2) includes a cuttable ring (201), and concentric circles (202) are provided on both sides of the cuttable ring (201).

6. A gasket for a gas compressor cylinder head according to claim 5, characterized in that: The thickness of the cuttable rubber ring (201) is greater than the thickness of the metal gasket one (1) and the metal gasket two (3) after they are fitted together.

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