CN210033656U

CN210033656U - Cylinder head gasket and engine with same

Info

Publication number: CN210033656U
Application number: CN201922370169.7U
Authority: CN
Inventors: 张天亮; 丁国栋; 徐继东; 白玲
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-02-07
Anticipated expiration: 2029-12-26

Abstract

The utility model belongs to the technical field of the engine accessories, concretely relates to cylinder head gasket and have its engine. The utility model provides a cylinder head includes gasket body, fire-retardant ring sum first connecting piece, be equipped with the cylinder hole on the body, fire-retardant ring encircles and locates in the cylinder hole, fire-retardant ring with the body passes through first connecting piece is connected. Through using the cylinder head gasket in the technical scheme, the flame-retardant ring can effectively reduce the temperature of the metal sealing structure on the cylinder head gasket during the operation of an engine, isolate the transmission of high-temperature fuel gas temperature, simultaneously improve the service life of the cylinder head gasket and reduce the failure probability of the cylinder head gasket.

Description

Cylinder head gasket and engine with same

Technical Field

The utility model belongs to the technical field of the engine accessories, concretely relates to cylinder head gasket and have its engine.

Background

The existing cylinder head gasket structure is mostly a metal rubber ring gasket and an all-metal gasket, and the market failure rate is high. The sealing gas adopts a stainless steel corrugated structure, is in direct contact with high-temperature high-pressure gas, and generates higher temperature by the metal sealing structure and the sealing rubber ring. The failure modes of the metal corrugations caused by high temperature are corrugation fracture and accelerated creep deformation of the metal corrugations, so that air leakage is caused, further the rubber ring is damaged, the rubber ring is aged at high temperature, and the faults of the whole machine such as water return, oil leakage and water leakage occur. The failure caused by the high temperature of the rubber ring is the abnormal aging of the rubber ring, which causes the faults of the whole machine such as water leakage, oil leakage and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the metal sealing structure of the cylinder head gasket is heated to too high temperature. The purpose is realized by the following technical scheme:

the utility model discloses a first aspect provides a cylinder head gasket, be equipped with the cylinder hole on the cylinder head gasket, the cylinder head gasket still includes:

the cylinder comprises a body, wherein a cylinder hole is formed in the body;

the flame-retardant ring is annularly arranged in the cylinder hole;

the flame-retardant ring is connected with the body through the first connecting piece.

Through using the cylinder head gasket in the technical scheme, the flame-retardant ring can effectively reduce the temperature of the metal sealing structure on the cylinder head gasket during the operation of an engine, isolate the transmission of high-temperature fuel gas temperature, simultaneously improve the service life of the cylinder head gasket and reduce the failure probability of the cylinder head gasket.

In addition, according to the utility model discloses a cylinder head gasket still can have following additional technical characterstic:

in some embodiments of the present invention, the cylinder head gasket further comprises an intermediate section and a second connecting member, the intermediate section is annularly disposed between the flame-retardant ring and the body, and the second connecting member is used for connecting the intermediate section with the body.

In some embodiments of the present invention, the first connecting member and the second connecting member are all arranged at intervals in the circumferential direction of the cylinder bore.

In some embodiments of the invention, the first connector and the second connector each comprise a plurality of rod-like structures.

In some embodiments of the present invention, the body further has a water sealing hole.

In some embodiments of the present invention, the body further has an oil sealing hole.

The utility model also provides an engine, this engine includes the cylinder head gasket among the above-mentioned embodiment.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 schematically illustrates a partial structural view of a cylinder head gasket according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of one embodiment of the cylinder head gasket of FIG. 1;

FIG. 3 is a cross-sectional view A-A of another embodiment of the cylinder head gasket of FIG. 1;

FIG. 4 schematically illustrates a partial structural view of a cylinder head gasket according to another embodiment of the present invention;

FIG. 5 is a cross-sectional view B-B of the embodiment of the cylinder head gasket of FIG. 4;

fig. 6 is a sectional view B-B of another embodiment of the cylinder head gasket of fig. 4.

10: a body, 20: flame-retardant ring, 30: middle section, 40: water sealing hole, 50: an oil sealing hole;

100: cylinder head gasket, 101: and (4) cylinder bores.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Fig. 1 is a schematic view illustrating a partial structure of a cylinder head gasket according to an embodiment of the present invention. FIG. 2 is a cross-sectional view A-A of the cylinder head gasket of FIG. 1. Fig. 3 is a sectional view a-a of another embodiment of the cylinder head gasket of fig. 1. As shown in fig. 1, 2 and 3, the utility model provides a cylinder head gasket and have its engine. The utility model provides a cylinder head gasket includes gasket body 10, fire-retardant ring 20 and first connecting piece, is equipped with cylinder hole 101 on the body 10, and fire-retardant ring 20 is located in cylinder hole 101, and fire-retardant ring 20 is connected through first connecting piece with body 10.

Through using cylinder head gasket 100 among this technical scheme, fire-retardant ring 20 can be when engine operation effectual reduction cylinder head gasket 100 goes up metal seal structure's temperature, keeps apart high temperature gas temperature transmission, has improved cylinder head gasket 100's life-span simultaneously, has reduced cylinder head gasket 100's probability of failure.

Further, in the present embodiment, as shown in fig. 4, 5 and 6, the head gasket 100 further includes an intermediate section 30, the intermediate section 30 being annularly provided between the flame-retardant ring 20 and the body 10, and a second connecting member for connecting the intermediate section 30 and the body 10. The middle section 30 is added, a heat insulation gap is added between the middle section 30 and the body 10, so that most of heat transmitted to the rubber ring can be isolated when the engine operates, the secondary heat isolation effect is achieved, the problems of rubber ring aging and the like are reduced, and the sealing service life of the cylinder head gasket 100 is prolonged.

Specifically, in the present embodiment, the first connection member and the second connection member are each provided at intervals in the circumferential direction of the cylinder bore 101. Wherein, first connecting piece and second connecting piece all include a plurality of rod-like structures. The connecting piece in this embodiment is the splice bar structure, and the setting of circumference direction interval makes to have certain clearance between fire-retardant ring 20 and the body 10, can keep apart most heat when the engine operates on fire-retardant ring 20, reduces heat transfer to seal structure in, promotes sealing capacity, and the reduction inefficacy takes place.

Specifically, the gap between the flame-retardant ring 20 and the body 10 in this embodiment is 0.3 to 1 mm.

Further, in the present embodiment, the head gasket 100 is further provided with a water sealing hole 40 for performing a cooling water sealing operation in cooperation with the cylinder head and the cylinder block.

Specifically, in the present embodiment, the head gasket 100 is further provided with an oil seal hole 50, which can cooperate with the cylinder head and the cylinder block to perform an oil sealing operation.

The utility model also provides an engine, cylinder head gasket including above.

Through using the engine in the technical scheme, the flame-retardant ring of the cylinder head gasket on the engine can effectively reduce the temperature of the metal sealing structure on the cylinder head gasket during the operation of the engine, isolate the temperature transfer of high-temperature fuel gas, prolong the service life of the cylinder head gasket and reduce the failure probability of the cylinder head gasket.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A cylinder head gasket, comprising:

the cylinder comprises a body, wherein a cylinder hole is formed in the body;

the flame-retardant ring is annularly arranged in the cylinder hole;

2. The cylinder head gasket of claim 1, further comprising an intermediate segment disposed between said flame retardant ring and said body, and a second connecting member for connecting said intermediate segment to said body.

3. The cylinder head gasket as set forth in claim 2 wherein said first connecting members and said second connecting members are each disposed at intervals in a circumferential direction of said cylinder bore.

4. The cylinder head gasket as set forth in claim 3 wherein said first connector and said second connector each comprise a plurality of rod-like structures.

5. The cylinder head gasket as set forth in any one of claims 1 to 4, wherein said body is further provided with water sealing holes.

6. The cylinder head gasket as set forth in any one of claims 1 to 4, wherein said body is further provided with an oil seal hole.

7. An engine characterized by having a cylinder head gasket according to any one of claims 1-6.