Metal sealing gasket for diesel engine fuel system pipeline

Abstract

The utility model provides a metal sealing gasket for a diesel engine fuel system pipeline, and belongs to the technical field of sealing gaskets. Comprising a metal sealing gasket circular ring body, the upper surface and the lower surface of the metal sealing gasket circular ring body are each provided with a multi-sawtooth-ring sealing face concentric with the metal sealing gasket circular ring body, the upper surface and the lower surface of the metal sealing gasket circular ring body are each provided with an elastic cushion layer, and the elastic cushion layers are matched with the multi-sawtooth-ring sealing faces in shape. According to the multi-sawtooth-shaped structure of the metal sealing gasket, the contact surface can be increased, more importantly, a plurality of sealing ring belts can be formed, the large contact surface and the large resilience force are achieved, the sealing effect of the gasket is improved, the sealing performance of a fuel system pipeline is improved, the leakage phenomenon of the fuel pipeline in the operation process of a diesel engine is reduced, and the service life of the diesel engine is prolonged. And the safety and reliability of the diesel engine are improved.

Description

Technical Field

[0001] This utility model belongs to the field of sealing gasket technology, specifically relating to a metal sealing gasket for diesel engine fuel system pipelines. Background Technology

[0002] Diesel engines are widely used in various fields due to their good economic performance, small size, light weight, good maneuverability, high reliability, long service life, and wide power range. As one of the major systems of a diesel engine, the fuel system pipeline has high pressure and a certain pulsating pattern, making it more prone to leakage. The sealing performance of the fuel system pipeline is crucial to the safety and reliability of the diesel engine. Therefore, a fuel line sealing gasket with good sealing performance can significantly improve the safety and reliability of diesel engine operation. Currently, diesel engine fuel system pipelines are typically sealed using ordinary gaskets. These ordinary gaskets are generally concentric flat gaskets with different outer and inner diameters. These ordinary gaskets have limited contact surface with the parts, low compressibility, and relatively low resilience. Over time, the resilience of ordinary gaskets decreases, and factors such as diesel engine vibration can cause the gasket to fail to seal properly, leading to fuel system pipeline leaks and affecting the normal operation of the diesel engine. Therefore, improvements are necessary. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a metal sealing gasket for diesel engine fuel system pipelines. The purpose of this utility model is to design a sealing gasket suitable for diesel engine fuel system pipelines, to ensure the sealing effect of diesel engine fuel system pipelines, and to improve the safety and reliability of diesel engine operation.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A metal sealing gasket for diesel engine fuel system pipelines includes a metal sealing gasket annular body. The upper and lower surfaces of the metal sealing gasket annular body are provided with concentric multi-toothed ring sealing surfaces. An elastic pad layer is provided on both the upper and lower surfaces of the metal sealing gasket annular body, and the elastic pad layer is adapted to the shape of the multi-toothed ring sealing surface.

[0006] Further defining the above solution, the main body of the metal sealing gasket ring is made of copper alloy material, and the elastic pad layer is a thin sheet made of rubber material.

[0007] Further defining the above scheme, the angle of the serrations on the multi-serrated ring sealing surface of the metal sealing gasket ring body is 60°, the included angle between adjacent serrations is also 60°, the height of the serrations is 0.5 + 0.1 0 mm, and the sharp parts of the serrations are rounded; the structure of the elastic pad layer is designed and manufactured according to the shape of the multi-serrated ring sealing surface.

[0008] Further defining the above scheme, the serrations on the multi-serrated ring sealing surface are arranged outward from a position 0.5 mm from the inner diameter of the metal sealing gasket ring body, until a position 0.5 to 1 mm from the outer diameter of the metal sealing gasket ring body.

[0009] As a further limitation of the above scheme, the inner circular surface and the outer surface of the metal sealing gasket ring body are both flat cylindrical surfaces.

[0010] Further defining the above solution, the inner side of the metal sealing gasket ring body protrudes inward to form an inner convex arc surface, and the outer side of the metal sealing gasket ring body protrudes outward to form an outer convex arc surface.

[0011] Advantages of this utility model compared to the prior art:

[0012] 1. The multi-serrated structure of the metal sealing gasket in this solution not only increases the contact surface, but more importantly, it can form multiple sealing rings with a larger contact surface and greater resilience. The compression of each serrated sealing ring is much greater than that of ordinary gaskets, and the resilience is correspondingly much greater, thereby improving the sealing effect of the gasket, ensuring the sealing between components, improving the sealing performance of the fuel system pipeline, reducing fuel pipeline leakage during diesel engine operation, and improving the safety and reliability of the diesel engine.

[0013] 2. This solution provides an elastic pad on both the upper and lower surfaces of the metal sealing gasket ring body, and the elastic pad is adapted to the shape of the multi-tooth ring sealing surface as a toothed ring, thereby increasing the overall elasticity of the sealing gasket and ensuring good continuous sealing performance during the use of the sealing gasket.

[0014] 3. The metal sealing gasket structure of this solution is relatively simple, has a wide range of applications, and can be promoted for use in other models. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Sectional view along axis AA;

[0017] Figure 3 This is a schematic diagram of the structure of the metal sealing gasket of this utility model, where the inner and outer surfaces are convex arc surfaces. Detailed Implementation

[0018] 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 scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] Please see Figure 1-3 The embodiments of this utility model are described in detail below.

[0022] Example 1: Metal sealing gasket for diesel engine fuel system pipelines, see [reference] Figure 1 and 2 As shown, it includes a metal sealing gasket ring body 1, and the upper and lower surfaces of the metal sealing gasket ring body 1 are provided with multi-tooth ring sealing surfaces 2 concentric with it.

[0023] Preferably, the metal sealing gasket ring body 1 is made of copper alloy material, and the elastic pad layer 3 is a thin sheet made of rubber material.

[0024] In one specific embodiment: the angle of the serrations on the multi-serrated ring sealing surface 2 of the metal sealing gasket ring body 1 is 60°, the included angle between adjacent serrations is also 60°, the height of the serrations is 0.5 + 0.1 0 mm, and the sharp ends of the serrations are rounded; the serrations on the multi-serrated ring sealing surface 2 are arranged outward from a position 0.5 mm away from the inner diameter of the metal sealing gasket ring body 1 until a position 0.5 to 1 mm away from the outer diameter of the metal sealing gasket ring body 1.

[0025] In this embodiment, the multi-serrated structure of the metal sealing gasket not only increases the contact surface, but more importantly, it can form multiple sealing rings, resulting in a larger contact surface and greater resilience. The compression of each serrated sealing ring is much greater than that of an ordinary gasket, and the resilience is correspondingly much greater, thereby improving the sealing effect of the gasket, ensuring the sealing between components, improving the sealing performance of the fuel system pipeline, reducing fuel pipeline leakage during diesel engine operation, and improving the safety and reliability of the diesel engine.

[0026] Example 2: See Figure 2 As shown, an elastic pad 3 is provided on both the upper and lower surfaces of the metal sealing gasket ring body 1. The elastic pad 3 is adapted to the shape of the multi-serrated ring sealing surface 2. The structure of the elastic pad 3 is designed and manufactured according to the shape of the multi-serrated ring sealing surface 2.

[0027] In this embodiment, by providing an elastic pad layer on both the upper and lower surfaces of the metal sealing gasket ring body, and adapting the shape of the elastic pad layer to the multi-tooth ring sealing surface as a toothed ring, the overall elasticity of the sealing gasket can be increased, ensuring good continuous sealing performance of the sealing gasket during use.

[0028] Example 3: See Figure 2 As shown, the inner and outer circular surfaces of the metal sealing gasket ring body 1 are both flat cylindrical surfaces, which have a simple structure and are easy to process.

[0029] Example 4: See Figure 3 As shown, the inner side of the metal sealing gasket ring body 1 protrudes inward to form an inner convex arc surface 4, and the outer side of the metal sealing gasket ring body 1 protrudes outward to form an outer convex arc surface 5.

[0030] In this embodiment, by setting both the inner and outer sides of the metal sealing gasket ring body into a convex arc structure, the rigidity of the metal gasket can be increased, preventing deformation during extrusion and affecting the sealing performance.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A metal sealing gasket for diesel engine fuel system pipelines, comprising a metal sealing gasket annular body (1), characterized in that: The upper and lower surfaces of the metal sealing gasket ring body (1) are provided with a multi-tooth ring sealing surface (2) concentric with it. The upper and lower surfaces of the metal sealing gasket ring body (1) are provided with an elastic pad layer (3), and the elastic pad layer (3) is adapted to the shape of the multi-tooth ring sealing surface (2).

2. The metal sealing gasket for diesel engine fuel system pipelines according to claim 1, characterized in that: The metal sealing gasket ring body (1) is made of copper alloy material, and the elastic pad layer (3) is a thin sheet made of rubber material.

3. The metal sealing gasket for diesel engine fuel system pipelines according to claim 1, characterized in that: The sawtooth angle of the multi-tooth ring sealing surface (2) on the metal sealing gasket ring body (1) is 60°, the included angle between adjacent sawtooths is also 60°, the height of the sawtooth is 0.5+0.10mm, and the sharp part of the sawtooth is rounded; the structure of the elastic pad layer (3) is designed and manufactured according to the shape of the multi-tooth ring sealing surface (2).

4. The metal sealing gasket for diesel engine fuel system pipelines according to claim 1, characterized in that: The serrations on the multi-serrated ring sealing surface (2) are arranged outward from a position 0.5 mm from the inner diameter of the metal sealing gasket ring body (1) until a position 0.5 to 1 mm from the outer diameter of the metal sealing gasket ring body (1).

5. The metal sealing gasket for diesel engine fuel system pipelines according to claim 1, characterized in that: The inner and outer surfaces of the metal sealing gasket ring body (1) are both flat cylindrical surfaces.

6. The metal sealing gasket for diesel engine fuel system pipelines according to claim 1, characterized in that: The inner side of the metal sealing gasket ring body (1) protrudes inward to form an inner convex arc surface (4), and the outer side of the metal sealing gasket ring body (1) protrudes outward to form an outer convex arc surface (5).

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