CN222478823U - Combined cylinder gasket - Google Patents

Abstract

The utility model provides a combined cylinder gasket which comprises a cylinder gasket body, an airtight piece and an oil-water sealing piece, wherein the airtight piece and the oil-water sealing piece are fixed on the cylinder gasket body, a plurality of cylinder holes are formed in the cylinder gasket body, the airtight piece is arranged around the cylinder holes and is used for sealing gaps between the cylinder holes and external parts, a plurality of bolt holes, water holes and oil holes are formed in the cylinder gasket body, the oil-water sealing piece is fixed at the bolt holes, the water holes and the oil holes and is used for sealing the gaps between the bolt holes, the water holes and the oil holes and the external parts, the cylinder gasket body is a single-layer metal plate, and the airtight piece is a multi-layer metal plate. The cylinder gasket body with smaller bearing pressure and lower heat adopts a metal single-layer plate, so that the strength of the body can be effectively improved, the production cost is reduced, and the air sealing element with larger bearing pressure and higher heat adopts a plurality of layers of metal plates, so that the separation gap caused by explosion pressure can be compensated, and the sealing reliability is improved.

Description

Combined cylinder gasket

Technical Field

The utility model relates to the technical field of engines, in particular to a combined cylinder gasket.

Background

The cylinder gasket, also called cylinder liner, is positioned between the cylinder cover and the cylinder body, and has the functions of filling microscopic holes between the cylinder cover and the cylinder body, ensuring good tightness at the joint surface, further ensuring the sealing of the combustion chamber and preventing the air leakage of the cylinder and the water leakage of the water jacket. The cylinder gasket is a part with relatively large influence on performance on the engine, is made of asbestos materials initially, but with the release of national related laws and regulations and the improvement of the performance of the engine, the asbestos gasket gradually begins to fail to meet the use requirement of the engine, and is replaced by a metal cylinder gasket.

For example, patent CN 202082002U provides a diesel engine single-layer plate cylinder gasket, including the cylinder gasket body, be equipped with cylinder mouth, water oilhole and bolt hole on the cylinder gasket body, the cylinder gasket body be made for the individual layer iron plate, the punching press has cylinder mouth sealing rib around the cylinder mouth, is equipped with sealing rubber ring in being located water oilhole department on the cylinder gasket body. The cylinder gasket body is made of a single-layer iron plate, so that the design defect of the multi-layer metal cylinder gasket is avoided, the manufacturing cost is reduced, the sealing rubber ring is used for replacing the traditional sealing ribs to seal cooling water and lubricating oil, the sealing effect is good, and the water leakage and oil leakage faults can be avoided. For example, a multi-cylinder single-layer metal cylinder gasket with a multi-element sealing structure is provided in patent CN 203560435U, the multi-cylinder single-layer metal cylinder gasket is provided with a gasket body, grooves are respectively formed in two ends of the gasket body, cylinder holes are distributed in the gasket body, end positioning holes, water holes and mounting holes are distributed in the outer periphery of each cylinder hole, sealing ribs and sealing grooves are distributed in the edges of each cylinder hole, a silicone rubber sealing layer is coated on each sealing rib, a rubber layer is coated on the gasket body, nylon plastic layers are coated on the gasket body between each mounting hole and each cylinder hole, and threaded holes are further distributed in four corners of the gasket body. The utility model can facilitate the processing and manufacturing of the gasket body, reduce the production cost, seal the whole gasket to a certain extent through the structures of the rubber layer and the nylon plastic layer, strengthen the local sealing performance, and realize good installation and positioning stability through the structures of the threaded holes and the end positioning holes.

It can be seen that in the prior art, most metal cylinder gaskets are sealed with a single metal gasket. The single-layer metal pad has simple processing technology and lower cost. However, the single-layer metal cushion gas seal adopts single-layer metal pressure waves, and the rebound compensation of the single-layer pressure wave structure is weak under the working conditions of high explosion pressure and high heat load, so that the seal failure is easy to cause.

Disclosure of utility model

In view of the foregoing, it is desirable to provide a combined cylinder gasket for solving the problem that the conventional cylinder gasket is susceptible to seal failure.

The utility model provides a combined cylinder gasket, which comprises:

The cylinder gasket comprises a cylinder gasket body, an airtight piece and an oil-water sealing piece, wherein the airtight piece is fixed on the cylinder gasket body, a plurality of cylinder holes are formed in the cylinder gasket body, the airtight piece surrounds the cylinder holes and is used for sealing gaps between the cylinder holes and external parts, a plurality of bolt holes, water holes and oil holes are formed in the cylinder gasket body, the oil-water sealing piece is fixed at the bolt holes, the water holes and the oil holes and is used for sealing the bolt holes, the water holes and gaps between the oil holes and the external parts, the cylinder gasket body is a single-layer metal plate, the airtight piece is a multi-layer metal plate, and the oil-water sealing piece is a rubber sealing ring.

Optionally, the airtight component includes upper contact layer and lower contact layer, upper contact layer one end with cylinder pad body upper surface is fixed, lower contact layer one end with cylinder pad body lower surface is fixed, the upper contact layer other end the lower contact layer other end is relative respectively the cylinder pad body upper and lower surface protrusion, and extends to in the cylinder pad cylinder bore.

Optionally, the airtight component further includes a sealing layer, where the sealing layer is fixed to one end of the upper contact layer away from the cylinder gasket body and one end of the lower contact layer away from the cylinder gasket body, and forms a sealing edge with respect to the upper contact layer and the lower contact layer.

Optionally, the airtight component further comprises an adjusting layer, wherein the adjusting layer is arranged between the upper contact layer and the lower contact layer, and the adjusting layer is used for adjusting the sealing thickness.

Optionally, the airtight component further includes an upper functional layer and a lower functional layer, the upper functional layer is fixed on a surface of the adjusting layer facing the upper contact layer, the upper functional layer is provided with pressing waves of various shapes to form a support for the upper contact layer, the lower functional layer is fixed on a surface of the adjusting layer facing the lower contact layer, and the lower functional layer is provided with pressing waves of various shapes to form a support for the lower contact layer.

Optionally, the thicknesses of the upper contact layer and the lower contact layer are smaller than the thickness of the cylinder gasket body, but the thicknesses of the upper contact layer and the lower contact layer are larger than the thicknesses of the upper functional layer and the lower functional layer.

Optionally, the thickness of the upper contact layer and the lower contact layer is 0.3-2.5 mm, and the thickness of the cylinder gasket body is 1-6 mm.

Optionally, the thickness of the upper functional layer and the lower functional layer is 0.1 mm-2 mm.

Optionally, the oil-water sealing member includes fixed skeleton and sealing rubber circle, fixed skeleton one end with the cylinder pad body is fixed, sealing rubber circle fixed cover is located on the other end of fixed skeleton.

Optionally, the fixed skeleton is made of metal material, and the sealing rubber ring is fixed with the fixed skeleton in a vulcanization mode.

The beneficial effects of the utility model are as follows:

The utility model provides a combined cylinder gasket which mainly comprises a cylinder gasket body, an air sealing element and an oil-water sealing element, wherein the air sealing element and the oil-water sealing element are fixed on the cylinder gasket body, the cylinder gasket body is a single-layer metal plate, and the air sealing element is a multi-layer metal plate. The cylinder gasket body with lower bearing pressure and lower heat adopts a metal single-layer plate, so that the weight and the production cost can be effectively reduced, and the air sealing element with higher bearing pressure and higher heat adopts a plurality of layers of metal plates, so that the strength of the air sealing element can be enhanced, and the air sealing element is prevented from being broken in use, and the sealing failure is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic top view of a combined cylinder head gasket according to the present utility model;

FIG. 2 is a schematic cross-sectional view of the airtight member of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the oil and water seal of FIG. 1;

The novel sealing rubber ring comprises a 1-cylinder gasket body, 11-cylinder holes, 12-bolt holes, 13-water holes, 14-oil holes, 2-air seals, 21-upper contact layers, 22-lower contact layers, 23-edge sealing layers, 24-adjusting layers, 25-upper functional layers, 26-lower functional layers, 3-oil-water seals, 31-fixed frameworks and 32-sealing rubber rings.

Detailed Description

Various exemplary embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. That is, the structures and methods herein are shown by way of example to illustrate different embodiments of the structures and methods in this disclosure. However, those skilled in the art will appreciate that they are merely illustrative of the exemplary ways in which the disclosure may be practiced, and not exhaustive. Moreover, the figures are not necessarily to scale, some features may be exaggerated to show details of particular components.

In addition, techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.

As shown in fig. 1, 2 and 3, the embodiment of the utility model provides a combined cylinder gasket, which comprises a cylinder gasket body 1, an airtight member 2 and an oil-water sealing member 3, wherein the airtight member 2 and the oil-water sealing member 3 are fixed on the cylinder gasket body 1, a plurality of cylinder holes 11 are formed in the cylinder gasket body 1, the airtight member 2 is arranged around the cylinder holes 11 and is used for sealing a gap between the cylinder holes 11 and an external part, a plurality of bolt holes 12, water holes 13 and oil holes 14 are formed in the cylinder gasket body 1, the oil-water sealing member 3 is fixed at the bolt holes 12, the water holes 13 and the oil holes 14 and is used for sealing the bolt holes 12, the water holes 13 and the gaps between the oil holes 14 and the external part, the cylinder gasket body 1 is a single-layer metal plate, and the airtight member 2 is a multi-layer metal plate.

The cylinder gasket comprises a cylinder gasket body 1, an air sealing element 2 and an oil-water sealing element 3, wherein the air sealing element 2 and the oil-water sealing element 3 are fixed on the cylinder gasket body 1, a plurality of cylinder holes 11 are formed in the cylinder gasket body 1, the air sealing element 2 is arranged around the cylinder holes 11 and is used for sealing gaps between the cylinder holes 11 and external parts, a plurality of bolt holes 12, water holes 13 and oil holes 14 are formed in the cylinder gasket body 1, the oil-water sealing element 3 is fixed at the positions of the bolt holes 12, the water holes 13 and the oil holes 14 and is used for sealing the gaps among the bolt holes 12, the water holes 13 and the oil holes 14 and the external parts, the cylinder gasket body 1 is a single-layer metal plate, and the air sealing element 2 is a multi-layer metal plate. The cylinder gasket body 1 with lower bearing pressure and lower heat is made of a metal single-layer plate, so that the weight and the production cost can be effectively reduced, and the air sealing element 2 with higher bearing pressure and higher heat is made of a plurality of layers of metal plates, so that the separation gap caused by explosion pressure can be compensated, and the sealing reliability is improved.

Further, the thickness of the cylinder gasket body 1 is 1-6 mm. The specific thickness is determined according to the engine sealing gap.

Further, the airtight member 2 includes an upper contact layer 21 and a lower contact layer 22, wherein one end of the upper contact layer 21 is fixed to the upper surface of the cylinder head gasket body 1, one end of the lower contact layer 22 is fixed to the lower surface of the cylinder head gasket body 1, and the other ends of the upper contact layer 21 and the lower contact layer 22 protrude from the upper and lower surfaces of the cylinder head gasket body 1, respectively, and extend into the cylinder bore 11. The upper contact layer 21 and the lower contact layer 22 can enhance the bearing capacity at the cylinder bore 11, and reduce the risk of fracture.

Further, the airtight member 2 further includes a seal layer 23, and the seal layer 23 is fixed to an end of the upper contact layer 21 remote from the cylinder head gasket body 1 and an end of the lower contact layer 22 remote from the cylinder head gasket body 1. And sealing edges are formed on the upper contact layer 21 and the lower contact layer 22, so that the upper contact layer and the lower contact layer are integrated, and the bearing capacity is further enhanced.

Further, the airtight member 2 further includes an adjustment layer 24, wherein the adjustment layer 24 is disposed between the upper contact layer 21 and the lower contact layer 22, and supports the upper contact layer 21 and the lower contact layer 22. The thickness of the adjusting layer 24 is adjusted according to the sealing gap required by the cylinder, and is preferably 0-2 mm.

Further, the airtight member 2 further includes an upper functional layer 25 and a lower functional layer 26, wherein the upper functional layer 25 is fixed on a surface of the adjustment layer 24 facing the upper contact layer 21, the upper functional layer 25 is bent to have the same shape as the upper contact layer 21 to support the upper contact layer 21, the lower functional layer 26 is fixed on a surface of the adjustment layer 24 facing the lower contact layer 22, the upper functional layer 25 is provided with a plurality of types of pressure waves to support the upper contact layer 21, the lower functional layer 26 is fixed on a surface of the adjustment layer 24 facing the lower contact layer 22, and a plurality of types of pressure waves are provided to support the lower contact layer 22.

Further, the thickness of the upper contact layer 21 and the lower contact layer 22 is smaller than the thickness of the cylinder head gasket body 1, but the thickness of the upper contact layer 21 and the lower contact layer 22 is larger than the thickness of the upper functional layer 25 and the lower functional layer 26.

Further, the thickness of the upper contact layer 21 and the lower contact layer 22 is adjusted according to the sealing gap, and preferably the thickness is 0.3 mm to 2.5 mm.

Further, the thickness of the upper functional layer 25 and the lower functional layer 26 is adjusted according to the sealing gap, and preferably the thickness is 0.1 mm to 2 mm.

Further, the oil-water seal member 3 includes a fixed frame 31 and a sealing rubber ring 32, one end of the fixed frame 31 is fixed to the cylinder gasket body 1, and the sealing rubber ring 32 is fixedly sleeved on the other end of the fixed frame 31.

Further, the fixing frame 31 is made of a metal material.

Further, the sealing rubber ring 32 is fixed to the fixing frame 31 by vulcanization.

The implementation process of the utility model is as follows:

The cylinder gasket body 1 is provided with the cylinder hole 11, the bolt hole 12, the water hole 13 and the oil hole 14 by being respectively processed according to the hole position in the cylinder, the upper contact layer 21, the lower contact layer 22, the edge sealing layer 23, the adjusting layer 24, the upper functional layer 25 and the lower functional layer 26 with proper thickness are selected according to the expected sealing gap, the upper contact layer 21, the upper functional layer 25, the adjusting layer 24, the lower functional layer 26 and the lower contact layer 22 are stacked and pressed from top to bottom in sequence, one end of the upper contact layer 21 and the upper surface of the cylinder gasket body 1 are fixed in a welding or riveting mode, one end of the lower contact layer 22 and the lower surface of the cylinder gasket body 1 are fixed in a welding or riveting mode, one end of the edge sealing layer 23 and one end of the upper contact layer 21 far away from the cylinder gasket body 1 and one end of the lower contact layer 22 are fixed in a welding or riveting mode, the upper contact layer 21 and the other end of the cylinder gasket body 22 are fixed in a sealing mode, the other end of the cylinder gasket body 1 and the water hole 31 are fixed in a sealing mode, the rubber gasket is fixed in a sealing mode, and the rubber gasket is provided with the other end of the cylinder gasket body 1 is fixed in a sealing mode, and the rubber gasket is provided with the rubber gasket body is provided with the water hole 32, and the sealing gasket is provided with the sealing gasket body is provided with the sealing hole 32, and is fixed with the sealing hole 32, and the sealing gasket is fixed by the sealing hole is respectively, and the sealing gasket body is provided with the sealing hole 32. In use, the upper contact layer 21 and the lower contact layer 22 seal the cylinder bore 11, and the sealing rubber ring 32 seals the bolt hole 12, the water hole 13 and the oil hole 14.

The utility model has the beneficial effects that:

The utility model provides a combined cylinder gasket which mainly comprises a cylinder gasket body, an air sealing element and an oil-water sealing element, wherein the air sealing element and the oil-water sealing element are fixed on the cylinder gasket body, a plurality of cylinder holes are formed in the cylinder gasket body, the air sealing element surrounds the cylinder holes and is used for sealing gaps between the cylinder holes and external parts, a plurality of bolt holes, water holes and oil holes are formed in the cylinder gasket body, the oil-water sealing element is fixed at the bolt holes, the water holes and the oil holes and is used for sealing the bolt holes, the water holes and the gaps between the oil holes and the external parts, the cylinder gasket body is a single-layer metal plate, and the air sealing element is a multi-layer metal plate. The cylinder gasket body with lower bearing pressure and lower heat adopts a metal single-layer plate, so that the weight and the production cost can be effectively reduced, and the air sealing element with higher bearing pressure and higher heat adopts a plurality of layers of metal plates, so that the separation gap caused by explosion pressure can be compensated, and the sealing reliability is improved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features. In the description of the present utility model, "plurality" means two or more. In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween. In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (10)

1. A combination cylinder gasket, comprising:

The cylinder gasket comprises a cylinder gasket body, an air sealing piece and an oil-water sealing piece, wherein the air sealing piece is fixed on the cylinder gasket body, a plurality of cylinder holes are formed in the cylinder gasket body, the air sealing piece surrounds the cylinder holes and is used for sealing gaps between the cylinder holes and external parts, a plurality of bolt holes, water holes and oil holes are formed in the cylinder gasket body, the oil-water sealing piece is fixed at the bolt holes, the water holes and the oil holes and is used for sealing the bolt holes, the water holes and gaps between the oil holes and the external parts, the cylinder gasket body is a single-layer metal plate, the air sealing piece is a multi-layer metal plate, the oil-water sealing piece is a rubber sealing ring, and the thickness of the cylinder gasket body is 1-6 mm.

2. The combination head gasket of claim 1, wherein the airtight member includes an upper contact layer having one end fixed to the upper surface of the head gasket body and a lower contact layer having one end fixed to the lower surface of the head gasket body, and the other end of the upper contact layer and the other end of the lower contact layer are protruded with respect to the upper and lower surfaces of the head gasket body, respectively, and extend into the head gasket cylinder bore.

3. The combination gasket of claim 2 wherein said seal further comprises a bead layer, said bead layer being secured to an end of said upper contact layer remote from said gasket body and an end of said lower contact layer remote from said gasket body to form a bead seal for said upper contact layer and said lower contact layer.

4. The combination gasket of claim 2 wherein said airtight member further comprises an adjustment layer disposed between said upper contact layer and said lower contact layer, said adjustment layer for adjusting a seal thickness.

5. The combined cylinder head gasket as set forth in claim 4 wherein said airtight member further comprises an upper functional layer and a lower functional layer, said upper functional layer being fixed to a face of said adjustment layer facing said upper contact layer, said upper functional layer being provided with a plurality of shapes of pressure waves for supporting said upper contact layer, said lower functional layer being fixed to a face of said adjustment layer facing said lower contact layer, said lower functional layer being provided with a plurality of shapes of pressure waves for supporting said lower contact layer.

6. The combination head gasket of claim 5, wherein the upper and lower contact layers have a thickness less than a thickness of the head gasket body, but the upper and lower contact layers have a thickness greater than a thickness of the upper and lower functional layers.

7. The combination head gasket of claim 6, wherein the upper contact layer and the lower contact layer have a thickness of 0.3 mm to 2.5 mm, and the head gasket body has a thickness of 1 mm to 6 mm.

8. The combination head gasket of claim 6, wherein the upper functional layer and the lower functional layer have a thickness of 0.1 mm to 2 mm.

9. The combined cylinder gasket as set forth in claim 1 wherein said oil-water seal member comprises a fixed frame and a sealing rubber ring, one end of said fixed frame being fixed to said cylinder gasket body, said sealing rubber ring being fixedly fitted over the other end of said fixed frame.

10. The combination cylinder head gasket as set forth in claim 9 wherein said fixed frame is made of a metal material and said sealing rubber ring is secured to said fixed frame by vulcanization.