High-resilience sealing type gasket structure for high-temperature water cavity

Abstract

The high-resilience sealing type gasket structure for the high-temperature water cavity comprises an outer wrapping layer of a hollow annular structure, an annular gasket and a round spring, the annular gasket and the round spring are arranged in an inner cavity of the outer wrapping layer, and the section of the single side of the outer wrapping layer is of a kidney-shaped ring structure. The circular spring is located on the inner side in an inner cavity of the outer wrapping layer, the annular pad is located on the outer side in the inner cavity of the outer wrapping layer, a gap needed by compression deformation under the high-temperature condition is formed between the circular spring and the annular pad, and an opening is formed in one end face of the outer wrapping layer. The sealing gasket solves the problem that a traditional flat gasket is not tight in sealing due to the fact that the compression amount is large and the resilience amount is small, reduces the deformation amount of an outer wrapping layer, improves the resilience force of the whole gasket, greatly improves the sealing effect of a water cavity of a combustion chamber, reduces the leakage phenomenon of the high-temperature water cavity of the combustion chamber in the operation process of a diesel engine, and improves the service life of the diesel engine. Safety and reliability of the diesel engine are improved, and the sealing effect of the diesel engine combustion chamber high-temperature water cavity is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of diesel engines, and in particular relates to a high-rebound sealing gasket structure used in a high-temperature water cavity. Background Art

[0002] Diesel engines are widely used in various fields due to their economical performance, compact size, light weight, good maneuverability, high reliability, long service life, and wide power range. As a crucial component of the diesel engine's power output, the combustion chamber can typically reach a maximum internal temperature of 1700°C. The seal between the combustion chamber and the high-temperature cooling water chamber is particularly important. If high-temperature water leaks into the combustion chamber, it can cause incomplete combustion of the diesel fuel and increased carbon deposits, seriously affecting the engine's efficiency. In more serious cases, it can cause cylinder liner seizure, abnormal stress on the piston and connecting rod, and even fracture of the cylinder liner and connecting rod, or even the connecting rod flying out of the diesel engine, resulting in serious accidents and casualties. Ordinary copper gaskets are generally concentric flat gaskets with different outer and inner diameters. Although they can be compressed, they have a small rebound capacity. As time goes by and the diesel engine is affected by factors such as vibration during operation, the pressing force between the gasket and the sealing surface becomes smaller, and there is almost no rebound force. During the long-term operation of the diesel engine, the ordinary copper gasket is very likely to have a poor seal, causing high-temperature water to enter the diesel engine combustion chamber, and eventually leading to serious diesel failure. In addition, ordinary copper gaskets must be replaced after disassembly. Therefore, it is necessary to design a gasket with good sealing performance to improve the safety and reliability of diesel engine operation. Utility Model Content

[0003] The technical problem solved by the present invention is: to provide a high-rebound sealing gasket structure for a high-temperature water cavity. By optimizing the gasket structure, a sealing gasket consisting of a hollow outer layer and an annular gasket and a circular spring arranged inside the outer layer is adopted, which solves the problem of poor sealing caused by the large compressibility and small rebound of traditional flat gaskets, reduces the deformation of the outer layer, and improves the overall rebound force of the gasket, ensuring that the sealing gasket as a whole has a certain strength of rebound force for a long time under long-term operating conditions of the diesel engine, thereby greatly improving the sealing effect of the combustion chamber water cavity, reducing the dripping phenomenon in the combustion chamber high-temperature water cavity during the operation of the diesel engine, improving the safety and reliability of the diesel engine, and being suitable for sealing the high-temperature water cavity of the diesel engine combustion chamber, ensuring the sealing effect of the high-temperature water cavity of the diesel engine combustion chamber.

[0004] The technical solution adopted by the present invention is: a high-rebound sealing gasket structure for a high-temperature water cavity, comprising an outer layer with a hollow annular structure and an annular gasket and a circular spring arranged in the inner cavity of the outer layer. The single-side cross-section of the outer layer is a waist-shaped ring structure, the circular spring is located on the inner side of the inner cavity of the outer layer, and the annular gasket is located on the outer side of the inner cavity of the outer layer. A gap required for compressive deformation under high temperature conditions is provided between the circular spring and the annular gasket, and an opening is provided on one end surface of the outer layer.

[0005] Wherein, the annular pad is made of heat-resistant stainless steel.

[0006] Furthermore, the outer cladding is made of heat-resistant stainless steel.

[0007] Furthermore, gaps are left between the two side walls of the annular gasket and the two side inner walls of the inner cavity of the outer cladding layer.

[0008] Furthermore, the circular spring is made of high-temperature alloy material.

[0009] Furthermore, the outer diameter of the circular spring is smaller than the inner diameter of the end portion of the inner cavity of the outer cladding.

[0010] The advantages of this utility model compared with the prior art are:

[0011] 1. This technical solution optimizes the gasket structure and adopts a sealing gasket consisting of a hollow outer layer, an annular gasket and a circular spring arranged inside the outer layer. This solves the problem of poor sealing caused by the large compressibility and small rebound of traditional flat gaskets. It reduces the deformation of the outer layer and improves the overall rebound force of the gasket, ensuring that the sealing gasket as a whole has a certain degree of rebound force under long-term operation conditions of the diesel engine, thereby greatly improving the sealing effect of the combustion chamber water cavity.

[0012] 2. This technical solution provides sufficient deformation space for the circular spring and the annular gasket by providing a gap between the circular spring and the annular gasket to prevent deformation under pressure under high temperature conditions. This ensures that the outer layer will not be severely deformed when squeezed, and also has a certain resilience, providing conditions for reliable sealing of the sealing gasket.

[0013] 3. This technical solution provides an opening on one end face of the outer layer to ensure that the outer layer has sufficient extension space under high temperature conditions and during the extrusion process and that the internal air can be discharged;

[0014] 4. This technical solution has a simple structure and novel design. It has good corrosion resistance and oxidation resistance under repeated heating, ensures the sealing of the high-temperature water cavity in the combustion chamber, greatly reduces the leakage of the high-temperature water cavity, improves the safety and reliability of the diesel engine, and is suitable for sealing the high-temperature water cavity in the diesel engine combustion chamber, ensuring the sealing effect of the high-temperature water cavity in the diesel engine combustion chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 Middle AA section view;

[0017] Figure 3 for Figure 2 Middle B is a partial enlarged schematic diagram. DETAILED DESCRIPTION

[0018] The following is a combination of the embodiments of the present invention Figure 1-3 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0019] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate positions or relationships based on those shown in the accompanying drawings. These are intended only to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] As used herein, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the elements.

[0021] High resilience sealing gasket structure for high temperature water cavity, such as Figure 1-3As shown, it includes an outer layer 1 with a hollow annular structure and an annular pad 2 and a circular spring 3 arranged in the inner cavity of the outer layer 1. The single-side cross-section of the outer layer 1 is a waist-shaped ring structure. The circular spring 3 is located on the inner side of the inner cavity of the outer layer 1 and the annular pad 2 is located on the outer side of the inner cavity of the outer layer 1. A gap 4 required for compression deformation under high temperature conditions is provided between the circular spring 3 and the annular pad 2, and an opening 5 is provided on one end surface of the outer layer 1 to ensure that the outer layer 1 has sufficient extension space under high temperature conditions and during the extrusion process and that the internal air can be discharged; in the above structure, by optimizing the gasket structure, a hollow outer layer 1 and a gasket arranged inside the outer layer 1 are used. The sealing gasket composed of the annular pad 2 and the circular spring 3 solves the problem of poor sealing caused by the large compressible amount and small rebound amount of the traditional flat gasket, reduces the deformation of the outer layer 1 and increases the rebound force, ensuring that the diesel engine has a certain strength of rebound force as a whole for a long time under long-term operation conditions, thereby greatly improving the sealing effect of the water cavity of the combustion chamber; by providing a gap between the circular spring 3 and the annular pad 2 for compressive deformation under high temperature conditions, sufficient deformation space is provided for the circular spring 3 and the annular pad 2, thereby ensuring that the outer layer 1 will not be seriously deformed when squeezed, and still has a certain rebound force, providing conditions for reliable sealing of the sealing gasket.

[0022] The annular gasket 2 is made of heat-resistant stainless steel material, material grade 06Cr18Ni11Ti GB / T20878-2007; the outer cladding 1 is made of heat-resistant stainless steel material, material grade 06Cr25Ni20 GB / T20878-2007; specifically, the two side walls of the annular gasket 2 respectively leave gaps 4 with the two side inner walls of the inner cavity of the outer cladding 1 (i.e., in the extrusion direction), so that the annular gasket 2 serves as the main supporting part of the sealing gasket, ensuring that the outer cladding 1 will not be severely deformed when extruded and has a certain resilience.

[0023] Among them, the circular spring 3 is made of high-temperature alloy material, and the material grade is GH4090GB / T14992-2005; specifically, the outer diameter of the circular spring 3 is smaller than the inner diameter of the inner cavity end of the outer layer 1. The circular spring 3 is the most important part of the sealing gasket. When the sealing gasket as a whole is squeezed, the radial elastic force of the circular spring 3 is used to ensure that the sealing gasket as a whole has a certain strength of rebound force for a long time; in addition, the outer layer 1, the annular gasket 2 and the circular spring 3 have good high temperature resistance, and have good corrosion resistance and oxidation resistance under repeated heating. Based on the above advantages, the sealing of the high-temperature water cavity of the combustion chamber is ensured, and the leakage of the high-temperature water cavity is greatly reduced.

[0024] This technical solution has a simple structure and novel design, improves the safety and reliability of the diesel engine, is suitable for sealing the high-temperature water cavity of the diesel engine combustion chamber, and ensures the sealing effect of the high-temperature water cavity of the diesel engine combustion chamber.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0026] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. High-rebound sealing gasket structure for high-temperature water cavity, characterized by: The invention comprises an outer cladding (1) with a hollow annular structure, an annular pad (2) and a circular spring (3) arranged in the inner cavity of the outer cladding (1); the outer cladding (1) has a single-side cross-sectional shape in a waist-shaped ring structure; the circular spring (3) is located inside the inner cavity of the outer cladding (1) and the annular pad (2) is located outside the inner cavity of the outer cladding (1); a gap (4) required for compression deformation under high temperature conditions is provided between the circular spring (3) and the annular pad (2); and an opening (5) is provided on one end surface of the outer cladding (1).

2. The high-resilience sealing gasket structure for a high-temperature water cavity according to claim 1, characterized in that: The annular pad (2) is made of heat-resistant stainless steel.

3. The high-resilience sealing gasket structure for a high-temperature water cavity according to claim 2, characterized in that: The outer cladding (1) is made of heat-resistant stainless steel.

4. The high-resilience sealing gasket structure for a high-temperature water cavity according to claim 3, characterized in that: Gaps (4) are left between the two side walls of the annular gasket (2) and the two side inner walls of the inner cavity of the outer cladding (1).

5. The high-resilience sealing gasket structure for a high-temperature water cavity according to claim 1, characterized in that: The circular spring (3) is made of high-temperature alloy material.

6. The high-resilience sealing gasket structure for a high-temperature water cavity according to claim 1, 2, 3, 4, or 5, characterized in that: The outer diameter of the circular spring (3) is smaller than the inner diameter of the inner cavity end of the outer cladding (1).

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