CN217107245U - Sealing structure of cylinder cover and exhaust manifold, engine and vehicle - Google Patents

Abstract

The utility model relates to an engine field specifically discloses a seal structure, engine and vehicle of cylinder head and exhaust manifold. The sealing structure of the cylinder cover and the exhaust manifold comprises the cylinder cover and the exhaust manifold connected with the cylinder cover, wherein an exhaust gasket is arranged on the exhaust manifold, a first exhaust hole is formed in the cylinder cover, a second exhaust hole is formed in the exhaust gasket, a groove is formed in the cylinder cover, the groove is arranged around the first exhaust hole, a protrusion matched with the groove is arranged on the exhaust gasket, and the protrusion is arranged around the second exhaust hole. This application adopts unsmooth complementary principle to carry out exhaust gasket's accurate positioning, and existing locate function has guaranteed gaseous leakproofness again.

Description

Sealing structure of cylinder cover and exhaust manifold, engine and vehicle

Technical Field

The utility model relates to an engine field specifically discloses a seal structure, engine and vehicle of cylinder head and exhaust manifold.

Background

When the gasket of the exhaust manifold is replaced at present, the gasket is easy to fall off due to lack of a corresponding positioning component, and the installation difficulty is increased. At present, a gasket of an engine exhaust manifold comprises a first structural layer and a second structural layer which are connected in an overlapping mode, a positioning hole is formed in the first structural layer and the second structural layer in a penetrating mode, and a positioning portion is arranged in the positioning hole so as to facilitate installation. Although the installation accuracy of gasket has been guaranteed to prior art's scheme, has made things convenient for the installation of bolt, nevertheless to manufacturing process the processing degree of difficulty great, even make things convenient for later stage installation, nevertheless require the degree of difficulty higher to earlier stage shaping processing, the processing cost is great.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve the above technical problems in the related art at least to some extent. Therefore, the utility model provides a cylinder head and exhaust manifold's seal structure, engine and vehicle solves above-mentioned at least one technical problem.

In order to achieve the above object, the utility model provides a cylinder head and exhaust manifold's seal structure, including the cylinder head and with the exhaust manifold that the cylinder head is connected, the last exhaust gasket that is provided with of exhaust manifold, first exhaust hole has been seted up on the cylinder head, the second exhaust hole has been seted up on the exhaust gasket, in the cylinder head sets up the recess, the recess encircles first exhaust hole and establishing, be provided with on the exhaust gasket with recess complex is protruding, protruding encircleing the second exhaust hole and establishing.

The utility model discloses the second aspect provides an engine, seal structure between cylinder head and the exhaust manifold of engine is as above the seal structure of cylinder head and exhaust manifold.

A third aspect of the present invention provides a vehicle including the engine as described above.

Additionally, the utility model discloses a seal structure of cylinder head and exhaust manifold can also have following additional technical characterstic:

according to some embodiments of the invention, the groove, the protrusion are ring-shaped.

According to some embodiments of the invention, the protrusion has a transition convex surface, the groove with the transition convex surface transition fit.

According to some embodiments of the invention, the groove and the raised tolerance zone overlap each other.

According to some embodiments of the invention, the cylinder head and the exhaust gasket are bolted together.

According to some embodiments of the present invention, the first exhaust hole is a plurality of, a plurality of the first exhaust hole is located on the same straight line.

Compared with the prior art, the utility model discloses following beneficial effect has:

this application adopts unsmooth complementary principle to carry out exhaust gasket's accurate positioning, and existing locate function has guaranteed gaseous leakproofness again.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an auxiliary device of an ultrasonic probe for a forging according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an auxiliary device of an ultrasonic probe for a forged piece according to an embodiment of the present invention.

The reference numbers are as follows:

the cylinder head 10, the first exhaust hole 101, the groove 102, the first bolt hole 103, the exhaust gasket 11, the protrusion 110, and the second bolt hole 111.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

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 "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

For convenience of description, spatially relative terms, such as "bottom," "front," "upper," "oblique," "lower," "top," "inner," "horizontal," "outer," 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. This spatially relative relationship is intended to encompass different orientations of the mechanism in use or operation in addition to the orientation depicted in the figures. For example, if the mechanism 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.

Referring to fig. 1-2, an embodiment of the present invention provides a sealing structure for a cylinder head and an exhaust manifold, including a cylinder head 10 and an exhaust manifold connected to the cylinder head 10, where the exhaust manifold collects exhaust gases of cylinders and guides the collected exhaust gases into an exhaust manifold, which has branched pipelines. The exhaust manifold is provided with an exhaust gasket 11, the cylinder head 10 is provided with a first exhaust hole 101, the exhaust gasket 11 is provided with a second exhaust hole corresponding to the first exhaust hole, the cylinder head 10 is provided with a groove 102, the groove 102 is arranged around the first exhaust hole 101, the exhaust gasket 11 is provided with a protrusion 110 matched with the groove 102, and the protrusion is arranged around the second exhaust hole.

The exhaust gasket 11 in this embodiment may be made of a special metal material for ensuring the sealing performance of the pipe.

In this embodiment, the groove 102 and the protrusion 110 may be annular. The protrusion 110 has a transition convex surface, the groove 102 is in transition fit with the transition convex surface, and the tolerance bands of the groove 102 and the protrusion 110 are mutually overlapped.

Further, the cylinder head 10 and the exhaust gasket 11 are bolted. Specifically, a first screw hole 103 is formed in the cylinder head 10, a second screw hole 111 is formed in a corresponding position of the exhaust gasket 11, and a bolt penetrates through the first screw hole 103 and the second screw hole 111 to connect the cylinder head 10 and the exhaust gasket 11.

The first exhaust holes 101 in this embodiment are plural, and the plural first exhaust holes 101 are located on the same straight line.

It should be noted that, in the processing process, a groove 102 which is matched with the exhaust gasket 11 is reserved at the position of the cylinder cover 10 surrounding the plane of each first exhaust hole 101, a concave model can be adopted for the plane of each first exhaust hole 101 during pouring, so that a cylinder cover with the groove is obtained, and then the exhaust gasket 11 with a convex surface is adopted to be in transition fit with the concave model, so that the sealing performance is ensured, the installation and the positioning are convenient, and the two purposes are achieved.

Another embodiment of the present invention provides an engine, including the sealing structure of the cylinder head and the exhaust manifold as described above, wherein the engine is a WP8 engine.

Another embodiment of the present invention provides a vehicle including an engine as described above.

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 (8)

1. The utility model provides a seal structure of cylinder head and exhaust manifold, its characterized in that, including the cylinder head and with the exhaust manifold that the cylinder head is connected, the last exhaust gasket that is provided with of exhaust manifold, the first exhaust hole has been seted up on the cylinder head, the second exhaust hole has been seted up on the exhaust gasket, in the cylinder head sets up the recess, the recess encircles first exhaust hole and establish, be provided with on the exhaust gasket with recess complex arch, the arch encircles the second exhaust hole and establish.

2. The cylinder head to exhaust manifold sealing structure according to claim 1, wherein said recess and said projection are annular.

3. The cylinder head to exhaust manifold sealing structure of claim 1, wherein said projection has a transition convex surface, and said groove is in transition fit with said transition convex surface.

4. The seal structure of a cylinder head and an exhaust manifold according to claim 3,

the tolerance zones of the groove and the protrusion overlap each other.

5. The seal structure of a cylinder head and an exhaust manifold according to claim 1,

the cylinder head and the exhaust gasket are connected through a bolt.

6. The seal structure of a cylinder head and an exhaust manifold according to claim 1,

the first exhaust hole is a plurality of, and a plurality of first exhaust hole is located collinear.

7. An engine characterized by comprising the sealing structure of the cylinder head and the exhaust manifold according to any one of claims 1 to 6.

8. A vehicle characterized by comprising an engine as claimed in claim 7.

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