CN221169765U - Cylinder head gasket, engine, hybrid assembly and vehicle - Google Patents

Abstract

The utility model discloses a cylinder head gasket, an engine, a hybrid assembly and a vehicle, wherein the cylinder head gasket is used for the engine and comprises a first functional layer, a separation layer, a flanging structure and a second functional layer, the distance layer is overlapped with the first functional layer, the flanging structure is connected with the distance layer, the flanging structure comprises at least two limiting layers which are overlapped with the distance layer, the second functional layer is arranged on one side of the separation layer, which is away from the first functional layer, and is overlapped on the flanging structure.

Description

Cylinder head gasket, engine, hybrid assembly and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a cylinder head gasket, an engine, a hybrid assembly and a vehicle.

Background

The cylinder head gasket provides sealing performance for an engine of the vehicle, so that the engine of the vehicle can normally run under a high detonation pressure working condition. In the prior art, a single-layer limiting layer is usually arranged on the cylinder head gasket, and sealing corrugations are arranged on the single-layer limiting layer, but the sealing force of the single-layer limiting layer is insufficient, so that the cylinder head gasket has a fatigue problem.

Disclosure of utility model

The utility model aims to provide a cylinder head gasket, an engine, a hybrid assembly and a vehicle, which solve the problem of fatigue of the cylinder head gasket at the cylinder port.

In order to achieve the purpose of the utility model, the utility model provides the following technical scheme:

In a first aspect, the present utility model provides a cylinder head gasket comprising: a first functional layer; a distance layer laminated with the first functional layer; the flanging structure is connected with the distance layer and comprises at least two limiting layers which are arranged on the distance layer; the second functional layer is arranged on one side of the separation layer, which is opposite to the first functional layer, and is laminated on the flanging structure.

In one embodiment, at least one of the stopper layers is wavy.

In one embodiment, from the first functional layer to the second functional layer, at least two layers of the limiting layers include a first limiting layer and a second limiting layer which are sequentially stacked, and the first limiting layer and the second limiting layer are all wavy.

In one embodiment, the depth of the recess in the second stopper layer is less than the depth of the recess in the first stopper layer.

In one embodiment, the first limiting layer includes a first body portion and a first bending portion, the first body portion and the first bending portion are of an integral structure, the first body portion includes a first surface and a second surface opposite to each other, the first surface is opposite to the distance layer, the second surface is opposite to the second limiting layer, and the first bending portion is opposite to the first surface and is concave and opposite to the second surface and is convex, so that the first limiting layer is in a wave shape.

In one embodiment, the number of the first bending parts is plural, and the plural first bending parts are disposed at intervals.

In one embodiment, the second limiting layer includes a second body portion and a second bending portion, the second body portion and the second bending portion are of an integral structure, the second body portion includes a third surface and a fourth surface opposite to each other, the third surface is opposite to the first limiting layer, and the second bending portion is opposite to the third surface and is protruding and recessed relative to the fourth surface, so that the second limiting layer is in a wave shape.

In one embodiment, the number of the second bending parts is plural, and the plural second bending parts are disposed at intervals.

In one embodiment, the cylinder head gasket further comprises at least two connecting layers, wherein the at least two connecting layers comprise a first connecting layer and a second connecting layer, one end of the first connecting layer is connected with the distance layer, the other end of the first connecting layer is connected with the first limiting layer, one end of the second connecting layer is connected with the first limiting layer, the other end of the second connecting layer is connected with the second limiting layer, and the first connecting layer and the second connecting layer are located at two opposite ends of the first limiting layer.

In one embodiment, a plurality of the cuff structures are connected to the distance layer.

In a second aspect, the present utility model also provides an engine comprising a block and a cylinder head gasket according to the first aspect, the block being connected to the cylinder head gasket.

In a third aspect, the present utility model also provides a hybrid assembly comprising an engine as described in the second aspect.

In a fourth aspect, the present utility model also provides a vehicle comprising an engine as described in the second aspect or a hybrid assembly as described in the third aspect.

Through setting up the cylinder head gasket, the cylinder head gasket includes first functional layer, distance layer, turn-ups structure and second functional layer, distance layer and first functional layer range upon range of setting, turn-ups structure connects at the border of distance layer to with distance layer structure as an organic whole, turn-ups structure includes with distance layer at least two-layer spacing layer that sets up, the second functional layer sets up in distance layer one side of first functional layer dorsad, and range upon range of on turn-ups structure, this cylinder head gasket sets up the jar mouth spacing position at the engine cylinder, at least two-layer spacing layer has promoted the intensity of cylinder head gasket, has solved the tired problem of cylinder head gasket.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of a cylinder head gasket of an embodiment;

FIG. 2 is a schematic illustration of the location of cylinder head gasket cylinder port limiting of an embodiment;

FIG. 3 is a schematic view of a partial structure of a cylinder head gasket of an embodiment.

Reference numerals illustrate:

The cylinder head gasket comprises a cylinder head gasket body, a first functional layer, a 12-distance layer, a 13-second functional layer, a 20-flanging structure, a 21-first limiting layer, a 211-first body part, a 2111-first surface, a 2112-second surface, a 212-first bending part, a 22-second limiting layer, a 221-second body part, a 2211-third surface, a 2212-fourth surface, a 222-second bending part, a 30-first connecting layer, a 31-second connecting layer, a 40-engine, an L1-second limiting layer and an L2-first limiting layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.

Currently, the cylinder head gasket 10 provides sealing performance to the engine 40 of the vehicle, thereby allowing the engine 40 of the vehicle to operate normally under high detonation pressure conditions. In the prior art, a single-layer limiting layer is often arranged on the cylinder head gasket, and sealing waves are arranged on the single-layer limiting layer, but the sealing force of the single-layer limiting layer is insufficient, so that the cylinder head gasket 10 has a fatigue problem.

Referring to fig. 1 and 3, a cylinder head gasket 10 according to an embodiment of the present utility model includes a first functional layer 11, a distance layer 12, a flange structure 20, and a second functional layer 13.

The distance layer 12 is arranged in a stack with the first functional layer 11, alternatively the distance layer 12 is arranged in a distance in the range of 5mm to 30 mm from the first functional layer 11. Alternatively, the range of the distance between the distance layer 12 and the first functional layer 11 may be, in particular but not limited to, 5mm, 6mm, 7mm, 10 mm, 20 mm, 30 mm, etc. Optionally, the center of the distance layer 12 coincides with the center of the first functional layer 11. Optionally, the surface of the first functional layer 11 facing the distance layer 12 has a first protrusion, which is located in the center of the first functional layer 11.

The flanging structure 20 is connected with the distance layer 12, and the flanging structure 20 comprises at least two limiting layers which are laminated with the distance layer 12. Alternatively, the flanging structure 20 and the distance layer 12 may be a single-piece structure, or may be manufactured separately, without limitation. Alternatively, the connection between the cuff structure 20 and the distance layer 12 may be, but not limited to, a snap connection, a rivet connection, a welded connection, or the like. Optionally, the connection between the flange structure 20 and the distance layer 12 is a welded connection, and the specific welding between the flange structure 20 and the distance layer 12 is brazing. Specifically, the flanging structure 20 is integrated on the distance layer 12, and meanwhile, a limiting layer is added at the limiting position of the cylinder port of the cylinder of the engine 40, so that fatigue of the limiting layer at the cylinder port position under the condition of high explosion pressure of the engine 40 is reduced, and failure risk of the cylinder head gasket 10 caused by fatigue of the limiting layer is reduced. Alternatively, the cuff structure 20 may be connected to the edge of the distance layer 12, or may be connected to other locations of the distance layer 12.

The second functional layer 13 is arranged on the side of the distance layer 12 facing away from the first functional layer 11 and is laminated on the cuff structure 20, optionally with a distance between the second functional layer 13 and the distance layer 12 in the range of 5 mm to 30 mm. Alternatively, the range of the distance between the second functional layer 13 and the distance layer 12 may be, but not limited to, specifically 5 mm, 7 mm, 10 mm, 15 mm, 20mm, 30 mm, and the like. When the cylinder head gasket 10 is mounted on the engine 40, the cylinder head gasket 10 is clamped by the block and the cylinder head, each layer is pressed by the block and the cylinder head, and each layer is closely attached without a space.

Optionally, the center of the second functional layer 13 coincides with the center of the first functional layer 11. Optionally, the surface of the second functional layer 13 facing the distance layer 12 has a second protrusion, which is located in the center of the second functional layer 13.

Through setting up cylinder head gasket 10, cylinder head gasket 10 includes first functional layer 11, distance layer 12, turn-ups structure 20 and second functional layer 13, distance layer 12 and the range upon range of setting of first functional layer 11, turn-ups structure 20 connects at the border of distance layer 12 to with distance layer 12 structure as an organic whole, turn-ups structure 20 include with distance layer 12 range upon range of at least two-layer spacing layer that set up, second functional layer 13 sets up in the one side of distance layer 12 dorsad first functional layer 11, and range upon range of on turn-ups structure 20, this cylinder head gasket 10 sets up the jar mouth spacing position at the engine 40 cylinder, at least two-layer spacing layer has promoted the intensity of cylinder head gasket 10, the tired problem of cylinder head gasket 10 has been solved.

In one embodiment, referring to fig. 1, at least one of the limiting layers has a wavy shape.

Alternatively, the number of the limiting layers may be two layers, three layers, four layers, five layers, six layers, or the like. Optionally, the limiting layer has two layers, and the two limiting layers are wavy. Optionally, the limiting layer has three layers, and the three layers of limiting layers are wavy. Optionally, the limiting layer has four layers, three layers of limiting layers are wavy, and one layer of limiting layer is a straight plate.

Optionally, at least one of the limiting layers is disposed at intervals between each other, and has a gap.

In one embodiment, referring to fig. 1, at least two limiting layers include a first limiting layer 21 and a second limiting layer 22 that are sequentially stacked from the first functional layer 11 to the second functional layer 13, and the first limiting layer 21 and the second limiting layer 22 are both in a wave shape.

Optionally, the first functional layer 11, the first limiting layer 21, the second limiting layer 22 and the second functional layer 13 are arranged at equal intervals. Optionally, the center of the first functional layer 11, the center of the distance layer 12 and the center of the second functional layer 13 all coincide, and the center of the first stopper layer 21 and the center of the second stopper layer 22 coincide.

Optionally, from the direction of first functional layer 11 to second functional layer 13, the quantity of spacing layer is three-layer, and wherein including first spacing layer 21, second spacing layer 22 and the third spacing layer of lamination in proper order in the three-layer spacing layer, first spacing layer 21 and second spacing layer 22 all are the wave, and the third spacing layer is the straight board. Optionally, the number of the limiting layers is three from the first functional layer 11 to the second functional layer 13, and the first functional layer 11, the first limiting layer 21, the second limiting layer 22, the third limiting layer and the second functional layer 13 are arranged at equal intervals. Optionally, the center of the first stopper layer 21, the center of the second stopper layer 22 and the center of the third stopper layer are all coincident.

Alternatively, the thickness of the first functional layer 11 ranges from 0.2 mm to 0.4 mm. Optionally, the thickness of the second functional layer 13 ranges from 0.2 mm to 0.4 mm.

In one embodiment, referring to fig. 1 and 3, the depth of the recess on the second stopper layer 22 is smaller than the depth of the recess on the first stopper layer 21.

Optionally, the depth of the recess on the second limiting layer is L1, and the depth of the recess on the first limiting layer is L2, so as to satisfy: l1 is less than L2.

Alternatively, the width of the recess in the second stopper layer 22 may be 4.9 mm, and the width of the recess in the first stopper layer 21 may be 4.9 mm.

In an embodiment, referring to fig. 1, the first limiting layer 21 includes a first body portion 211 and a first bending portion 212, the first body portion 211 and the first bending portion 212 are in an integral structure, the first body portion 211 includes a first surface 2111 and a second surface 2112 opposite to each other, the first surface 2111 is opposite to the separation layer 12, the second surface 2112 is opposite to the second limiting layer 22, and the first bending portion 212 is recessed opposite to the first surface 2111 and raised opposite to the second surface 2112, so that the first limiting layer 21 has a wave shape.

Alternatively, the thickness of the distance layer 12 may range from 0.1 mm to 0.2 mm. Alternatively, the thickness of the distance layer 12 may be, but is not limited to, 0.1 mm, 0.15 mm, 0.2 mm, and the like.

Optionally, first bend 212 is recessed relative to first face 2111 to a depth ranging from 0.55 millimeters to 0.80 millimeters. Alternatively, first bend 212 may be recessed relative to first face 2111 to a depth of, but not limited to, specifically 0.55 mm, 0.6 mm, 0.7 mm, 0.80 mm, etc. Optionally, the height of the protrusion of the first bending portion 212 relative to the second surface 2112 ranges from 0.5 mm to 0.8 mm. Alternatively, the height of the protrusion of the first bending portion 212 relative to the second surface 2112 may be, but is not limited to, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, etc.

Optionally, the first surface 2111 and the second surface 2112 are polished by fluid polishing, mechanical polishing, ultrasonic polishing, chemical polishing, electrolytic polishing, and the like, and the first surface 2111 and the second surface 2112 are polished, so that the smoothness of the first surface 2111 and the second surface 2112 is improved, and other components are prevented from being scratched.

Alternatively, the material of the first stopper layer 21 may be, but not limited to, a stainless steel material, a cast iron material, and an alloy material.

In one embodiment, referring to fig. 1, the first bending portions 212 are plural, and the plural first bending portions 212 are disposed at intervals.

Optionally, the plurality of first bending portions 212 are disposed at intervals of 5 mm to 20 mm. Alternatively, the spacing between the plurality of first bending portions 212 may be, but is not limited to, 5 mm, 6mm, 7 mm, 8 mm, 10mm, 20 mm, etc. Optionally, the number of the first bending portions 212 ranges from 2 to 6. Alternatively, the number of the first bending parts 212 may be, but not limited to, 2, 3, 4, 5, 6, etc. Optionally, the plurality of first bending portions 212 are disposed at equal intervals.

In an embodiment, referring to fig. 1, the second limiting layer 22 includes a second body portion 221 and a second bending portion 222, the second body portion 221 and the second bending portion 222 are in an integral structure, the second body portion 221 includes a third surface 2211 and a fourth surface 2212 opposite to each other, the third surface 2211 is opposite to the first limiting layer 21, and the second bending portion 222 is raised opposite to the third surface 2211 and recessed opposite to the fourth surface 2212, so that the second limiting layer 22 has a wave shape.

Optionally, the front projection of the second bending portion 222 coincides with the front projection of the first bending portion 212.

Optionally, the depth of the second bending portion 222 recessed with respect to the fourth surface 2212 ranges from 0.4 mm to 0.5 mm. Alternatively, the depth of the second bending portion 222 recessed with respect to the fourth surface 2212 may be, but is not limited to, 0.40 mm, 0.41 mm, 0.45 mm, 0.5 mm, etc. Optionally, the height of the protrusion of the second bending portion 222 relative to the third surface 2211 ranges from 0.4 mm to 0.5 mm. Alternatively, the height of the protrusion of the first bend 212 relative to the second face 2112 may be, but is not limited to, 0.40 mm, 0.41 mm, 0.45 mm, 0.5 mm, etc.

Optionally, the second bending portion 222 is recessed with respect to the fourth surface 2212 by a depth a1, and the first bending portion 212 is recessed with respect to the first surface 2111 by a depth a2, which satisfies: a1 < a2.

Alternatively, the material of the second stopper layer 22 may be, but not limited to, a stainless steel material, a cast iron material, and an alloy material.

Optionally, polishing is performed on the third surface 2211 and the fourth surface 2212, where the polishing may be fluid polishing, mechanical polishing, ultrasonic polishing, chemical polishing, electrolytic polishing, and the like, and polishing is performed on the third surface 2211 and the fourth surface 2212, so that the smoothness of the third surface 2211 and the fourth surface 2212 is improved, and other components are prevented from being scratched.

Specifically, the integrated design of at least two limiting layers reduces the use cost of the material of the cylinder head gasket 10, reduces the production cost of the whole engine 40, increases the adjustment space of the compression thickness of the cylinder head gasket 10 by the design of at least two limiting layers, and solves the problem of out-of-tolerance size between cylinder heads.

In one embodiment, referring to fig. 1, the second bending portions 222 are plural, and the plural second bending portions 222 are disposed at intervals.

Optionally, the plurality of second bending portions 222 are disposed at intervals of 5 mm to 20 mm. Alternatively, the spacing between the plurality of second bending portions 222 may be, but is not limited to, specifically 5 mm, 6mm, 7 mm, 8 mm, 10mm, 20 mm, etc. Optionally, the number of the second bending portions 222 ranges from 2 to 6. Alternatively, the number of the second bending parts 222 may be, but not limited to, 2, 3, 4, 5, 6, etc. Optionally, the plurality of second bending portions 222 are disposed at equal intervals.

In an embodiment, referring to fig. 1, the cylinder head gasket 10 further includes at least two connecting layers, where the at least two connecting layers include a first connecting layer 30 and a second connecting layer 31, one end of the first connecting layer 30 is connected with the distance layer 12, the other end is connected with the first limiting layer 21, one end of the second connecting layer 31 is connected with the first limiting layer 21, the other end is connected with the second limiting layer 22, and the first connecting layer 30 and the second connecting layer 31 are located at two opposite ends of the first limiting layer 21.

Specifically, the first connection layer 30 is located at the edge of the first spacing layer 21 near the distance layer 12, and the second connection layer 31 is located at the edge of the first spacing layer 21 far from the distance layer 12.

Alternatively, the first connection layer 30 and the second connection layer 31 may be, but not limited to, a straight plate, a bent plate, or the like.

Alternatively, the connection between the first connection layer 30 and the first limiting layer 21 may be, but not limited to, a snap connection, a rivet connection, a welded connection, or the like. Optionally, the first connection layer 30 is welded to the first limiting layer 21, and the specific welding between the first connection layer 30 and the first limiting layer 21 is brazing.

Optionally, the connection between the second connection layer 31 and the second limiting layer 22 may be, but not limited to, a snap connection, a rivet connection, a welded connection, or the like. Optionally, the connection mode between the second connection layer 31 and the second limiting layer 22 is welding connection, the specific welding mode between the second connection layer 31 and the second limiting layer 22 is brazing, a metal material with a melting point lower than that of the second connection layer 31 and the second limiting layer 22 is used as brazing filler metal, the second connection layer 31, the second limiting layer 22 and the brazing filler metal are heated to a temperature higher than the melting point of the brazing filler metal and lower than that of the second connection layer 31 and the second limiting layer 22, the second connection layer 31 and the second limiting layer 22 are wetted by liquid brazing filler metal, interface gaps are filled, and mutual diffusion among atoms is achieved with the second connection layer 31 and the second limiting layer 22, so that welding is achieved, the connection mode of welding is simple to operate, and connection is stable. The utility model is illustrated by brazing in a connection and should not be construed as limiting the utility model.

Alternatively, the material of the at least two connection layers may be, but not limited to, a stainless steel material, a cast iron material, and an alloy material.

In one embodiment, referring to fig. 1, a plurality of cuff structures 20 are connected to the distance layer 12.

Alternatively, when the distance layer 12 has opposite ends, the flange structures 20 are attached to the edges of each end of the distance layer 12.

Alternatively, the material of the distance layer 12 may be, in particular but not limited to, stainless steel material, cast iron material, and alloy material.

The embodiment of the present utility model also provides an engine 40, please refer to fig. 1 and 2, comprising a cylinder block and a cylinder head gasket 10 as described above, the cylinder block being connected with the cylinder head gasket 10.

Alternatively, the engine 40 may be a one-cylinder engine 40, a three-cylinder engine 40, a four-cylinder engine 40, an eight-cylinder engine 40, a twelve-cylinder engine 40, or the like, without limitation. Optionally, the engine 40 further includes a cylinder head, the cylinder head is connected with the cylinder body, and a cylinder head gasket is assembled between the cylinder body and the cylinder head and is assembled and fixed by a plurality of cylinder head bolts.

Embodiments of the present utility model also provide a hybrid assembly including an engine 40 as described above.

Embodiments of the present utility model also provide a vehicle including an engine 40 as described above or a hybrid assembly as described above.

Alternatively, the vehicle may be classified into a mini-vehicle, a light vehicle, a medium vehicle, and a high vehicle according to the displacement of the engine 40, each having the engine 40 including the above-described embodiment.

In the description of the embodiments of the present utility model, it should be noted that, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are merely for convenience of description and simplicity of description, and are not to be construed as limiting the utility model, as the means or elements referred to must have a specific orientation, be constructed and operated in a specific orientation.

The above disclosure is only a preferred embodiment of the present utility model, and it should be understood that the scope of the utility model is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be implemented, and equivalent modifications can be made thereto, while still falling within the scope of the present utility model.

Claims (13)

1. A cylinder head gasket, comprising:

A first functional layer;

A distance layer laminated with the first functional layer;

the flanging structure is connected with the distance layer and comprises at least two limiting layers which are arranged on the distance layer;

the second functional layer is arranged on one side of the separation layer, which is opposite to the first functional layer, and is laminated on the flanging structure.

2. The cylinder head gasket of claim 1, wherein at least one of the check layers is wavy.

3. The cylinder head gasket of claim 2, wherein at least two of the stopper layers include a first stopper layer and a second stopper layer stacked in order from the first functional layer toward the second functional layer, the first stopper layer and the second stopper layer each having a wave shape.

4. The cylinder head gasket of claim 3, wherein the depth of the recess in the second check layer is less than the depth of the recess in the first check layer.

5. The cylinder head gasket of claim 3, wherein the first spacing layer comprises a first body portion and a first bend portion, the first body portion and the first bend portion being of unitary construction, the first body portion comprising first and second opposed faces, the first face being opposite the distance layer, the second face being opposite the second spacing layer, the first bend portion being recessed relative to the first face and protruding relative to the second face such that the first spacing layer is wavy.

6. The cylinder head gasket of claim 5, wherein the first bending portions are plural and the plural first bending portions are disposed at intervals.

7. The cylinder head gasket of claim 3, wherein the second spacing layer comprises a second body portion and a second bend portion, the second body portion and the second bend portion being of unitary construction, the second body portion comprising third and fourth opposing faces, the third face being opposite the first spacing layer, the second bend portion being raised relative to the third face and recessed relative to the fourth face such that the second spacing layer is undulating.

8. The cylinder head gasket of claim 7, wherein the second bending portions are plural and the plural second bending portions are disposed at intervals.

9. The cylinder head gasket of claim 3, further comprising at least two layers of connecting layers, the at least two layers of connecting layers comprising a first connecting layer and a second connecting layer, one end of the first connecting layer being connected to the distance layer and the other end being connected to the first spacing layer, one end of the second connecting layer being connected to the first spacing layer and the other end being connected to the second spacing layer, the first connecting layer and the second connecting layer being located at opposite ends of the first spacing layer.

10. The cylinder head gasket of claim 1, wherein a plurality of said flange structures are attached to said distance layer.

11. An engine comprising a block and a cylinder head gasket according to any one of claims 1 to 10, the block being connected to the cylinder head gasket.

12. A hybrid assembly comprising the engine of claim 11.

13. A vehicle comprising an engine as claimed in claim 11 or a hybrid assembly as claimed in claim 12.