CN209557117U - Engine cylinder cap pad and engine - Google Patents

Abstract

The utility model relates to a kind of engine cylinder cap pad and engines, the engine cylinder cap pad includes through the shim body equipped with multiple combustion chamber holes, water hole and oilhole and bolt hole, the shim body includes functional layer, raft and middle layer, functional layer includes upper functional layer and lower functional layer, in the full wave pattern sealing bar for being equipped with ring each combustion chamber hole setting in the two, and to the first half ripple sealing bars of each water hole, each oilhole and each bolt hole sealing；Raft and middle layer are folded between functional layer and lower functional layer, are equipped with the second half ripple sealing bar and multiple receiving holes in raft；Middle layer includes the muti-piece intermediate plate being contained in each receiving hole, and each each combustion chamber hole setting of intermediate plate ring, edge extends to the outside of full wave pattern sealing bar.The engine cylinder cap pad of the utility model, by by middle layer and the same layer arrangement of raft, can adjust intermediate layer thickness and when changing engine compression ratio, without being modified to raft.

Description

Engine cylinder cap pad and engine

Technical field

The utility model relates to engine component technical field, in particular to a kind of engine cylinder cap pad, meanwhile, The utility model further relates to a kind of engine with the engine cylinder cap pad.

Background technique

Engine cylinder cap pad is folded between cylinder block and cylinder head, to constitute to high pressure gas between the two, lubrication The sealing of oil and cooling water.Cylinder head gasket in the prior art, thereon through the combustion chamber equipped with arrangement corresponding with cylinder holes Hole, oilhole corresponding with oil circuit and water route and water hole and cylinder bolt hole, and cylinder head gasket generally comprises a pair of of functional layer And the middle layer and raft for being folded between two functional layers and being stacked up and down.Wherein, middle layer corresponds to each combustion chamber hole Setting, to promote the sealed pressure of full wave pattern sealing bar, and can change engine compression ratio by adjusting thickness.And raft Boundary dimensions and two functional layers it is roughly equal, and be configured on raft half ripple sealing bar to water hole and oilhole progress Sealing.

Currently, usually changing engine compression ratio by adjusting the thickness of raft, still, because arranging on raft There are half ripple sealing bar, the change of thickness, it will the sealing force distribution of double of bellow seal muscle has an adverse effect, and causes half Bellow seal muscle needs to redesign, and increases development difficulty, period and verifying cost.

Utility model content

In view of this, the utility model is directed to a kind of engine cylinder cap pad, when adjusting intermediate layer thickness, Without changing the structure of raft, processing cost and development cycle can be reduced.

In order to achieve the above objectives, the technical solution of the utility model is achieved in that

A kind of engine cylinder cap pad, is folded between cylinder block and cylinder head, the engine cylinder cap pad packet Shim body is included, and is equipped with multiple combustion chamber holes, water hole and oilhole and bolt hole, the gasket in running through in the shim body Ontology includes:

Functional layer, including the upper functional layer abutted against respectively with the cylinder block, and abutted against with the cylinder head Lower functional layer, and in the full wave pattern for being configured with each combustion chamber hole setting of ring in the upper functional layer and the lower functional layer Sealing bar, and constitute the first half ripple sealing bars to each water hole, each oilhole and the sealing of each bolt hole；

Raft is folded between the upper functional layer and the lower functional layer, and in being configured with ring on the raft Multiple receiving holes of each combustion chamber hole setting, and in being configured with the second half ripple sealing bars on the raft, to constitute Sealing to each water hole, each oilhole and each bolt hole；

Middle layer is folded between the upper functional layer and the lower functional layer, and including being contained in each receiving hole In muti-piece intermediate plate, and each combustion chamber hole setting of each intermediate plate ring, the edge of the intermediate plate extends to relatively The outside for the full wave pattern sealing bar answered.

Further, the upper functional layer and the lower functional layer are equal with the thickness of the raft.

Further, the distance between the middle layer outer edge and the full wave pattern sealing bar outer edge be 3.7~ 6.75mm。

Further, Yu Suoshu full wave pattern sealing bar and the first half ripple sealing bar respectively with the cylinder block and institute It states the side that cylinder head abuts against and is coated with resinous coat.

Further, the resinous coat with a thickness of 20~25 μm.

Further, the height of the full wave pattern sealing bar is less than the height of the first half ripple sealing bar.

Further, the first half ripple sealing bar is corresponding with the second half position of ripple sealing bar.

Further, the width of the first half ripple sealing bar is equal with the second half width of ripple sealing bar.

Compared with the existing technology, the utility model has the advantage that

(1) engine cylinder cap pad described in the utility model, by by middle layer and the same layer arrangement of raft, and It is folded between function and lower functional layer, so as to when changing engine compression ratio by adjusting intermediate layer thickness, nothing Raft need to be modified, so can solve to need in the prior art to change processing cost brought by the structure of raft it is high and The problems such as development cycle length.

(2) function and lower functional layer are equal with the thickness of raft on, this engine cylinder cap pad can be improved to oilhole And the sealing effect in water hole.

(3) the distance between middle layer outer edge and full wave pattern sealing bar outer edge can protected between 3.7~6.75mm While demonstrate,proving leakproofness and rigidity, plate materials are reduced to the maximum extent.

(4) coated with resins coating can effectively prevent declining for full wave pattern sealing bar and the first half ripple sealing bar elastic forces Subtract, to can guarantee sealing effect.

(5) resinous coat can effectively improve the elasticity of full wave pattern sealing bar and half ripple sealing bar with a thickness of 20~25 μm Power, so that sealing effect can be improved.

(6) the first half ripple sealing bars are corresponding with the second half positions of ripple sealing bar, this cylinder head gasket pair can be improved Oilhole and the sealing effect in water hole.

(7) width of the first half ripple sealing bars and the second half ripple sealing bars is set as equal, can be improved sealing force The harmony distributed at this position, so that the sealing effect to water hole and oilhole at this position can be improved.

The another object of the utility model is to propose a kind of engine, including cylinder block and cylinder head, in cylinder block with Engine cylinder cap pad as described above is gripped between cylinder head.

This engine is by using above-mentioned engine cylinder cap pad, when adjusting intermediate layer thickness, without changing pad The structure of plate layer, so as to reduce manufacturing cost.

Detailed description of the invention

The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.In In attached drawing:

Fig. 1 is the structural schematic diagram of engine cylinder cap pad described in the utility model embodiment one；

Fig. 2 is the cross-sectional view of line A-A in Fig. 1；

Description of symbols:

The upper functional layer of 1-, the first half ripple sealing bar of 2-, 3- bolt hole, 4- combustion chamber hole, 5- full wave pattern sealing bar, 6- water Hole, 7- oilhole, 8- middle layer, functional layer under 9-, 10- raft, the second half ripple sealing bar of 11-.

Specific embodiment

It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can To be combined with each other.

The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

Embodiment one

The present embodiment is related to a kind of engine cylinder cap pad, is folded between cylinder block and cylinder head, in conjunction with Fig. 1 and Shown in Fig. 2, which includes shim body, in the shim body through equipped with multiple combustion chamber holes 4, Water hole 6 and oilhole 7 and bolt hole 3.It mainly include functional layer, raft 10 and middle layer 8 in the shim body overall structure；Its In, functional layer includes the upper functional layer 1 abutted against respectively with cylinder block, and the lower functional layer 9 abutted against with cylinder head, and in It is configured with the full wave pattern sealing bar 5 that each combustion chamber hole 4 of ring is arranged in upper functional layer 1 and lower functional layer 9, and constitutes to each The first half ripple sealing bars 2 that water hole 6, each oilhole 7 and each bolt hole 3 seal.And as shown in Fig. 2, the all-wave of the present embodiment The specific structure of line sealing bar 5 is similar with existing structure, is configured to the arch of evagination, and the first half ripple sealing bars 2 Structure is also similar with existing structure, is specifically configured to ramped shaped.

The raft 10 of the present embodiment is folded between functional layer 1 and lower functional layer 9, and constructs on raft 10 The multiple receiving holes for thering is each combustion chamber hole 4 of ring to be arranged, to constitute seal to each water hole 6, each oilhole 7 and each bolt hole 3 second Half ripple sealing bar 11.Wherein, the structure of the second half ripple sealing bars 11 of the present embodiment is also similar with existing structure, also by It constructs ramp-like.And middle layer 8 and the same layer arrangement of raft 10, it is also folded between function and lower functional layer 9, it should Middle layer 8 specifically includes the identical intermediate plate of muti-piece thickness being contained in each receiving hole, and each combustion chamber hole 4 of each intermediate plate ring Setting, edge extends to the outside of corresponding full wave pattern sealing bar 5.Wherein, corresponding full wave pattern sealing bar 5 is specific Finger ring is set to the full wave pattern sealing bar 5 in circular 4 outside of combustion chamber hole of intermediate plate.

In the present embodiment, in order to improve using effect, the thickness phase of upper functional layer 1 and lower functional layer 9 and raft 10 Deng.Further, as shown in Fig. 2, the position of the first half ripple sealing bars 2 of the present embodiment and the second half ripple sealing bars 11 It is corresponding, and the width H of the two is equal.Further, the height of the first half ripple sealing bars 2 and the second half ripple sealing bars 11 Also identical, it is distributed so set, cylinder bolt can be improved in the first half ripple sealing bars 2 and the second half ripple sealing bars 11 Sealing force harmony, so that the sealing effect to water hole 6 and/or oilhole 7 can be improved.

In addition to this, as shown in Fig. 2, in order to improve this engine cylinder cap pad to the leakproofness of combustion chamber hole 4, in Between the distance between plate outer edge and 5 outer edge of full wave pattern sealing bar L be 3.7~6.75mm.And in the present embodiment, in order to obtain Preferable using effect, the distance between intermediate plate outer edge and 5 outer edge of full wave pattern sealing bar L are preferably 4.0mm or 5.0mm Or 6.0mm.In addition, based on engine working performance, the height of the full wave pattern sealing bar 5 of the present embodiment is less than the first half ripples The height of sealing bar 2 and the second half ripple sealing bars 11.

In the present embodiment, in order to improve the sealing effect to high pressure gas, oilhole 7 and water hole 6 and bolt hole 3, Yu Quanbo The side that line sealing bar 5 and the first half ripple sealing bars 2 are abutted against with cylinder block and head respectively is coated with resinous coat, with It prevents the decaying of sealing bar elastic force and guarantees leakproofness.Wherein, the resinous coat is mainly by the resins structure such as fluorine system and butyronitrile system At.And in order to obtain better using effect, the resinous coat of the present embodiment with a thickness of 20~25 μm, and be preferably set to 22 μm Or 24 μm.

Based on whole description as above, the engine cylinder cap pad of the present embodiment, by the way that middle layer 8 and raft 10 is same Layer arrangement and be folded between function and lower functional layer 9, so as to by change 8 thickness of middle layer changing engine When compression ratio, without being modified raft 10, and then it can solve to need system brought by change raft 10 in the prior art Make the problems such as the period is long and verifying is at high cost.

Embodiment two

The present embodiment is related to a kind of engine, including cylinder block and cylinder head, and sandwiched between cylinder block and head Just like engine cylinder cap pad described in embodiment one.

The engine of the present embodiment by using such as embodiment one engine cylinder cap pad, when changing compression ratio without The structure of raft 10 need to be changed, so as to reduce manufacturing cost.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims (9)

1. a kind of engine cylinder cap pad, is folded between cylinder block and cylinder head, the engine cylinder cap pad includes Shim body, and multiple combustion chamber holes (4), water hole (6) and oilhole (7) and bolt hole are equipped in running through in the shim body (3), which is characterized in that the shim body includes:

Functional layer abuts against down including the upper functional layer (1) abutted against respectively with the cylinder block, and with the cylinder head Functional layer (9), and set in being configured with each combustion chamber hole (4) of ring on the upper functional layer (1) and the lower functional layer (9) The full wave pattern sealing bar (5) set, and constitute close to each water hole (6), each oilhole (7) and each bolt hole (3) The first half ripple sealing bars (2) of envelope；

Raft (10) is folded between the upper functional layer (1) and the lower functional layer (9), and in the raft (10) On be configured with multiple receiving holes of each combustion chamber hole (4) setting of ring, and in being configured with the second half on the raft (10) Bellow seal muscle (11), to constitute the sealing to each water hole (6), each oilhole (7) and each bolt hole (3)；

Middle layer (8) is folded between the upper functional layer (1) and the lower functional layer (9), and including being contained in each appearance The muti-piece intermediate plate received in hole, and each combustion chamber hole (4) setting of each intermediate plate ring, the edge of the intermediate plate extends To the outside of the corresponding full wave pattern sealing bar (5).

2. engine cylinder cap pad according to claim 1, it is characterised in that: the upper functional layer (1) and it is described under Functional layer (9) is equal with the thickness of the raft (10).

3. engine cylinder cap pad according to claim 1, it is characterised in that: middle layer (8) outer edge and institute Stating the distance between full wave pattern sealing bar (5) outer edge is 3.7~6.75mm.

4. engine cylinder cap pad according to claim 1, it is characterised in that: Yu Suoshu full wave pattern sealing bar (5) and The side that the first half ripple sealing bar (2) is abutted against with the cylinder block and the cylinder head respectively is applied coated with resin Layer.

5. engine cylinder cap pad according to claim 4, it is characterised in that: the resinous coat with a thickness of 20~ 25μm。

6. engine cylinder cap pad according to claim 1, it is characterised in that: the height of the full wave pattern sealing bar (5) Degree is less than the height of the first half ripple sealing bar (2).

7. engine cylinder cap pad according to any one of claim 1 to 6, it is characterised in that: first half-wave Line sealing bar (2) is corresponding with the second half position of ripple sealing bar (11).

8. engine cylinder cap pad according to claim 7, it is characterised in that: the first half ripple sealing bar (2) Width it is equal with the second half width of ripple sealing bar (11).

9. a kind of engine, including cylinder block and cylinder head, it is characterised in that: pressed from both sides between Yu Suoshu cylinder block and the cylinder head It is equipped with such as cylinder head gasket described in any item of the claim 1 to 8.