CN201439817U

CN201439817U - sealing gasket

Info

Publication number: CN201439817U
Application number: CN2009200756920U
Authority: CN
Inventors: 黄兆春; 李慧明
Original assignee: Pan Asia Technical Automotive Center Co Ltd; Shanghai General Motors Co Ltd
Current assignee: SAIC General Motors Corp Ltd; Pan Asia Technical Automotive Center Co Ltd
Priority date: 2009-07-29
Filing date: 2009-07-29
Publication date: 2010-04-21
Anticipated expiration: 2019-07-29

Abstract

The utility model relates to a sealing gasket, which comprises a gasket body, a connecting band extending inward from one side of the gasket body and an ignition coil sealing ring arranged on the connecting band. Transverse sealing ribs are arranged at the bottoms of two sides of the gasket. The sealing gasket can reduce the cost of the engine, strengthen the sealing pressure and reduce the requirement on a shrinkage cavity of a cylinder cover, thereby the capability of the sealing gasket for resisting the deformation of a shroud is improved and oil leakage at the shroud can be effectively avoided.

Description

Gasket seal

Technical field

The utility model relates to a kind of gasket seal, particularly the gasket seal of camshaft of car engine chamber cover cap use.

Background technique

Recently in order to alleviate motor car engine weight and to reduce production costs, use plastic materials to make the cover cap of the camshaft chest of motor widely.But with respect to original aluminum alloy cover cap, the plastics cover cap is easy deformation more, and more responsive to the vibrations of motor, in order to remedy these adverse condition, need be used and the corresponding cover cap gasket seal of plastics cover cap.

The structure of the gasket seal that conventional aluminum alloy cover cap uses is very simple, and these pads are very responsive to the distortion of cover cap, and the micro-strain of cover cap all can cause leaking.In addition, the gasket seal that conventional aluminum alloy cover cap uses is had relatively high expectations to the shrinkage cavity of cylinder cap, and the diameter of fitness for purpose shrinkage cavity is below 0.2mm, and sealing load is lower than 1.2MPa.And these technical parameters all can not satisfy the requirement of plastics cover cap, very easily cause the leakage of oil of cover cap place.

Therefore, be necessary in fact to design a kind of gasket seal that is used with the engine cam chamber cover cap plastic materials manufacturing, to overcome the defective of prior art.

The model utility content

The purpose of this utility model is to provide a kind of gasket seal that is used with the engine cam chamber cover cap plastic materials manufacturing, the sealing pad can be in the cost that reduces motor, enhanced leaktightness pressure, reduction is to the requirement of cylinder cap shrinkage cavity, thereby improved the anti-cover cap deformation ability of gasket seal, can avoid the leakage of oil of cover cap place effectively.

To achieve these goals, gasket seal of the present utility model is achieved through the following technical solutions:

A kind of gasket seal, is arranged on the spark coil seal ring on this connecting band at the connecting band that comprises shim body, extends internally from a side of shim body; The bottom of described shim body both sides is provided with horizontal sealed muscle.

As preferred implementation, the middle part of described shim body both sides is provided with horizontal strengthening rib, and the width of this strengthening rib is less than the width of described sealed muscle.

As preferred implementation, a plurality of stiffening ribs longitudinally are set at interval on the described shim body.

As preferred implementation, the bottom of described spark coil seal ring both sides is provided with horizontal sealed muscle.

As preferred implementation, also be arranged at intervals with a plurality of stiffening ribs longitudinally on the sidewall of described spark coil seal ring.

As preferred implementation, also be provided with netted convex tendon on the described shim body.

As preferred implementation, be provided with sealing strip between two sealed muscles of described gasket seal.

Gasket seal of the present utility model can reduce the motor cost, and enhanced leaktightness pressure reduces the requirement to the cylinder cap shrinkage cavity, thereby improved the anti-cover cap deformation ability of gasket seal, can avoid the leakage of oil of cover cap place effectively.

Description of drawings

In order better to understand gasket seal of the present utility model, please refer to the following drawings:

Fig. 1 is the stereogram of gasket seal of the present utility model;

Fig. 2 is the plan view of gasket seal of the present utility model;

Fig. 3 is the sectional view of gasket seal of the present utility model along A-A line among Fig. 2;

Fig. 4 A is the sectional view of gasket seal of the present utility model position F;

Fig. 4 B is the sectional view of gasket seal of the present utility model along B-B line among Fig. 4 A;

Fig. 5 is the sectional view of gasket seal of the present utility model along C-C line among Fig. 2;

Fig. 6 is the enlarged view of gasket seal of the present utility model along position E among Fig. 2;

Fig. 7 A is the sectional view of gasket seal of the present utility model position G;

Fig. 7 B is the sectional view of gasket seal of the present utility model along D-D line among Fig. 7 A.

Embodiment

Below in conjunction with embodiment the utility model is elaborated, wherein identical component are represented with identical reference character.Need to prove, describe below the word " preceding " that uses, " back ", " left side ", " right side ", " on " and D score refer to direction in the accompanying drawing, word " interior " and " outward " refer to respectively towards or away from the direction of specific features geometrical center.

See also Fig. 1, the connecting band 12 that gasket seal 1 of the present utility model comprises shim body 10, extend internally from a side of shim body 10, be arranged on the spark coil seal ring 14 on this connecting band 12.

As shown in Figure 2, described shim body 10 is a hollow-core construction, the middle part of the right edge of shim body 10 connecting band 12 that extends internally out, and this connecting band 12 is provided with spark coil seal ring 14, can be used for the sealing of spark coil.

As shown in Figure 3, for the croos strength of reinforced gasket body 10 and strengthen the contact pressure of gasket seal 1, improve the anti-cover cap deformability of gasket seal 1.The cross section of shim body 10 roughly is made as the T font of handstand, promptly is provided with horizontal sealed muscle 100 in the bottom of described shim body 10 both sides.Even such design cover cap is distortion upwards, gasket seal 1 still has enough contact pressures.

Preferably, be provided with horizontal strengthening rib 102 at the middle part of described shim body 10 both sides, and the width of strengthening rib 102 is less than the width of described sealed muscle 100.The croos strength on the whole that the design of strengthening rib 102 not only can improve shim body 10 can also reduce the fill factor of gasket seal 1, makes gasket seal 1 can not be full of the engine bonnet groove, thus prevent gasket seal 1 by excess compression cause breaking, leakage of oil.

The distortion of plastics engine bonnet is to make progress and outside distortion.In order to overcome the distortion that cover cap makes progress, increased the sealed muscle 100 of projection in shim body 10 two bottom sides, sealed muscle 100 still how keeps in touch when shim body 10 moves up, thereby has guaranteed sealing load; In order to overcome the outside distortion of cover cap, in shim body 10 side arrangement strengthening rib 102, strengthening rib 102 has strengthened the intensity of shim body 10, has reduced the risk that shim body 10 cracks.Strengthening rib 102 and cover cap groove are interference fit, have reduced the possibility that shim body 10 moves in groove, the distortion when reducing shim body 10 compressions simultaneously.

Please, it will be understood by those skilled in the art that longitudinal strength, reduce shim body 10 and produce the risk in crack, preferably, a plurality of stiffening ribs longitudinally 104 are set at interval on described shim body 10 for reinforced gasket body 10 in conjunction with consulting Fig. 1 and Fig. 4 A, 4B.

Fig. 5 is that described spark coil seal ring 14 among Fig. 2 is along the sectional view of C-C line.Also be arranged at intervals with a plurality of 104 (see figure 1)s of stiffening rib longitudinally on the sidewall of described spark coil seal ring 14.The bottom of described spark coil seal ring 14 both sides also is provided with horizontal sealed muscle 100, but strengthening rib 102 is not set.Reason is: the bolt of the fastening engine bonnet of spark coil seal ring 14 distances is far away, and the relative deformation of engine bonnet is bigger, and therefore in spark coil seal ring 14 two bottom sides sealed muscle 100 being set can increase sealing load and sealed width effectively; But because the fill factor of spark coil seal ring 14 in groove need be higher than the fill factor of other positions, so strengthening rib 102 is not set on the spark coil seal ring 14.

Two E zones have been shown among Fig. 2, and this zone is the position of engine cylinder cover and protecgulum combination, and Fig. 6 is the enlarged view of this position.The position of engine cylinder cover and protecgulum combination unavoidably exists small step and gap, in order to seal this piece zone, need on shim body 10, process netted structure, therefore for increase engine cylinder cover and protecgulum in conjunction with the time area of contact, preferably, on shim body 10, also be provided with netted convex tendon 106, in addition, can also be coated with sealer herein and assist sealing.

It will be appreciated by those skilled in the art that, engine cylinder covers may a plurality of small shrinkage cavities, have some shrinkage cavities on the sealed muscle 100 in the sealed muscle 100 of inboard or the outside, machine oil is easy to flow to from the passage between the sealed muscle 100 outer surface of engine bonnet, forms and leaks.Therefore, preferably, be provided with sealing strip 108 between two sealed muscles 100 of gasket seal 1, these sealing strips 108 can intercept machine oil mobile (shown in Fig. 7 A and 7B) between two sealed muscles 100.

The foregoing description is only for the usefulness that the utility model is described, and be not to be to restriction of the present utility model, the those of ordinary skill in relevant technologies field, under the situation that does not break away from the utility model scope, can also make various variations and modification, so all technological schemes that are equal to also should belong to the disclosed category of the utility model.

Claims

1. gasket seal is characterized in that: the connecting band that the sealing pad comprises shim body, extend internally from a side of shim body, be arranged on the spark coil seal ring on this connecting band; The bottom of described shim body both sides is provided with horizontal sealed muscle.

2. gasket seal according to claim 1 is characterized in that, the middle part of described shim body both sides is provided with horizontal strengthening rib, and the width of this strengthening rib is less than the width of described sealed muscle.

3. gasket seal according to claim 2 is characterized in that, a plurality of stiffening ribs longitudinally are set on the described shim body at interval.

4. according to any described gasket seal of claim 1-3, it is characterized in that the bottom of described spark coil seal ring both sides is provided with horizontal sealed muscle.

5. gasket seal according to claim 4 is characterized in that, also is arranged at intervals with a plurality of stiffening ribs longitudinally on the sidewall of described spark coil seal ring.

6. gasket seal according to claim 5 is characterized in that, also is provided with netted convex tendon on the described shim body.

7. gasket seal according to claim 6 is characterized in that, is provided with sealing strip between two sealed muscles of described gasket seal.