CN204961046U - Catalyst converter gasket - Google Patents
Catalyst converter gasket Download PDFInfo
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- CN204961046U CN204961046U CN201520654972.2U CN201520654972U CN204961046U CN 204961046 U CN204961046 U CN 204961046U CN 201520654972 U CN201520654972 U CN 201520654972U CN 204961046 U CN204961046 U CN 204961046U
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- catalyst converter
- convex tendon
- pad
- shim body
- flange
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Abstract
The utility model discloses a catalyst converter gasket, wherein, include: the gasket body is provided with the centre bore that is used for connecting the catalyst converter on the gasket body, be provided with protruding muscle on the gasket body, and protruding muscle is located the circumference edge of centre bore, and gasket body circumference edge is provided with the turn -ups, and the turn -ups is towards the radial direction folding device of centre bore, protruding muscle highly be higher than turn down rims height. The utility model discloses a setting up the gasket body, being provided with the centre bore on the gasket body, be provided with protruding muscle on the gasket body, protruding muscle is located the circumference edge of centre bore to be provided with the turn -ups at gasket body circumference edge, the turn -ups is towards the radial direction setting of centre bore, highly being higher than of protruding muscle turn down rims height for protruding muscle height is the biggest to compress turn down rims height and the incompressible limit state of arriving, has reduced the deformation volume of protruding muscle, has reduced the fatigue deformation of protruding muscle, has improved catalyst converter gasket's sealed durability, satisfies the sealed requirement of high temperature flange, and simple structure is with low costs simultaneously.
Description
Technical field
The utility model relates to motor catalyst technologies field, is specifically related to a kind of catalyst converter pad.
Background technique
Under discharge and the more and more stricter trend of fuel economy regulation, the features such as the turbosupercharged engine of small displacement is little, lightweight with its discharge capacity, power moment of torsion is large instead of traditional huge discharge naturally aspirated engine, become the market mainstream.
Pressurized machine is that gas compressor work increases suction pressure and flow, makes to produce large power moment of torsion at the engine interior of smaller size smaller, reduces oil consumption simultaneously by utilizing exhaust energy to drive turbine to rotate.
But due to the High Rotation Speed of booster turbine, engine exhaust temperature can reach more than 950 degree, and supercharger volute surface temperature is also very high simultaneously, and the high-temperature exhaust air finishing merit enters ternary catalyzing unit by pressurized machine and then discharges.Due to the existence of high temperature, pressurized machine and ternary catalyzing unit flange can be caused to produce distortion, and fatigue strength reduces, easy Damage and Fracture.
In addition, pressurized machine is fastened on cylinder cap only by four stud nuts, and the high-speed rotary change of team of turbine brings sizable vibration, is easy to produce loosen, and sealing effect is bad.Once generation exhaust gas leakage, pressurized effect can decline to a great extent, and engine power rapid drawdown is accelerated unable; Can produce simultaneously and utter long and high-pitched sounds, high-temperature gas is gone out and can be destroyed part in engine compartment, likely causes burning, causes serious consequence.
Fig. 1 is the assembling schematic diagram of catalyst converter pad in prior art, Fig. 2 is the sectional view of catalyst converter pad in prior art, as depicted in figs. 1 and 2, catalyst converter pad employing mica 4 ＇ of the prior art, graphite 5 ＇ and 304 stainless steel bound edges form a circular part, mica 4 ＇ and graphite 5 ＇ is clipped together by seven layers of stainless steel, forms sandwich structure.Catalyst converter pad 3 ＇ is nested in fluting 7 ＇ of flange 2 ＇ of catalyst converter 1 ＇, passes through bolt tightening.Catalyst converter pad 3 ＇ height is compressed, and material at high temperature expands and is full of whole fluting 7 ＇ simultaneously, forms sealing system.In the prior art, due to stainless steel at high temperature (950 DEG C) its mechanical property cannot be kept, the rebound elasticity of catalyst converter pad and fatigue strength reduce, and easily produce Damage and Fracture, thus cannot meet the requirement of flange high temp sealing and seal durability.Meanwhile, catalyst converter gasket construction of the prior art is complicated, on the high side; Flanged surface needs fluting, adds the integral thickness of flange, is unfavorable for lightweight.
Model utility content
In view of this, the utility model proposes a kind of catalyst converter pad, to solve the problems of the prior art, improve seal durability, structure is simple simultaneously.
The utility model provides a kind of catalyst converter pad, wherein, comprise: shim body, described shim body is provided with the center hole for connecting catalyst converter, described shim body is provided with convex tendon, and described convex tendon is positioned at the circumferential edge of described center hole, and described shim body circumferential edge is provided with flange, described flange is folded with towards center hole radial direction, and the height of described convex tendon is higher than the height of described flange.
Catalyst converter pad as above, wherein, preferably, described convex tendon is kink shape.
Catalyst converter pad as above, wherein, preferably, described convex tendon bends towards the central axis direction of described shim body.
Catalyst converter pad as above, wherein, preferably, the plane at described convex tendon bottom and center hole place is in the acute angle preset.
Catalyst converter pad as above, wherein, preferably, described shim body is integrated impact briquetting.
Catalyst converter pad as above, wherein, preferably, the material of described shim body is Langaloy.
The utility model additionally provides a kind of motor with catalyst converter pad, and described motor comprises pressurized machine and catalyst converter, wherein, also comprises catalyst converter pad, and described catalyst converter pad is arranged between described pressurized machine and catalyst converter.
As above with the motor of catalyst converter pad, wherein, preferably, described catalyst converter pad, pressurized machine and catalyst converter pass through clip connected.
A kind of catalyst converter pad that the utility model provides, by being provided with the convex tendon with certain altitude in shim body, is played the effect of exhaust sealing by compression rebound during convex tendon assembling; And flange is set in the circumferential edge of shim body, the height of convex tendon is higher than the height of described flange, make fin height maximum compression can not be compressed to ultimate state to the height of flange, reduce the deformation quantity of convex tendon, reduce the fatigue deformation of convex tendon, improve the seal durability of catalyst converter pad, meet the seal request of high-temperature flange, structure is simple simultaneously, and cost is low.
Accompanying drawing explanation
Fig. 1 is the assembling schematic diagram of catalyst converter pad in prior art;
Fig. 2 is the sectional view of catalyst converter pad in prior art;
Fig. 3 is the mounting structure schematic diagram of the catalyst converter pad that the utility model embodiment provides;
Fig. 4 is the structural representation of the catalyst converter pad that the utility model embodiment provides;
Fig. 5 is the sectional view of A-A in Fig. 4.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the technical solution of the utility model is described in detail.The identical reference character of wherein identical component represents.It should be noted that, the word "front", "rear" of use is described below, "left", "right", "up" and "down" refer to direction in accompanying drawing, word " interior " and " outward " refer to the direction towards or away from particular elements geometrical center respectively.
Fig. 3 is the mounting structure schematic diagram of the catalyst converter pad that the utility model embodiment provides, and Fig. 4 is the structural representation of the catalyst converter pad that the utility model embodiment provides, and Fig. 5 is the sectional view of A-A in Fig. 4.As in Figure 3-5, the utility model embodiment proposes a kind of catalyst converter pad, wherein, comprise: shim body 401, described shim body 401 is provided with the center hole 402 for connecting catalyst converter 1, described shim body 401 is provided with convex tendon 403, described convex tendon 403 is positioned at the circumferential edge of described center hole 402, described shim body 401 circumferential edge is provided with flange 404, described flange 404 is folded with towards center hole 402 radial direction, and the height of described convex tendon 403 is higher than the height of described flange 404.
Shim body 401 is circular, the shape of shim body 401 and catalyst converter 1 adaptation.The center of shim body 401 is provided with center hole 402, and the circumferential edge of center hole 402 is provided with convex tendon 403.Convex tendon 403 is in kink shape, convex tendon 403, through once bending, is bent into obtuse angle structure, and the direction of bending is towards the direction of the central shaft of shim body 401, with flange 404 towards roughly the same, convex tendon 403 top is all almost parallel with shim body 401, flange 404.In the present embodiment, the plane at described convex tendon 403 bottom and center hole 402 place has certain acute angle, and the obtuse angle that this acute angle and convex tendon 403 are bent into is complementary.Convex tendon 403 is positioned at the top of center hole 402, and in circular, its internal diameter is less than the internal diameter of center hole 402.
Shim body 401 circumferential edge is provided with flange 404, flange 404 is by forming the edge fold of shim body 401, the radial direction in centrally hole 402, the inner side of flange 404 points to the hole heart of center hole 402, the annulus that flange 404 is formed and center hole 402 are concentric circle, and the diameter in the hole that flange 404 surrounds is greater than the diameter of center hole 402.The height of described convex tendon 403 higher than the height of described flange 404, height refer to shim body 401 under, convex tendon 403 compares under upper laying state.Flange 404 can be arranged on the same side of shim body 402 with convex tendon 403, also can be arranged on the both sides of shim body 401, ensures the height of height higher than described flange 404 of convex tendon 403.Flange 404 adds the thickness of shim body 401, reduces the height of the relative shim body 401 of convex tendon 403, thus reduces the amount of deformation of convex tendon 403, add the seal durability of convex tendon 403.
In the present embodiment, the length of described flange 404 is 2 ± 0.1mm.After ensureing installation, flange 404 can play the effect increasing shim body 401 thickness, reduces the deformation quantity of convex tendon 403, improves the durability of catalyst converter pad 4.
Further, shim body 401 adopts punching press one-body molded, and the one-body molded processing technology of punching press is simple, and cost is low.
The shim body 401 middle cylinder mouth position blanking that is stamped defines center hole 402, as exhaust passage.Cylinder mouth is stamped into convex tendon 403 simultaneously.Clamped by two side flange (not shown) at the effect lower levelling plate body 401 of bolt axial force, convex tendon 403 is played the effect of exhaust sealing by compression, and the seal action of convex tendon 403 is determined by the resilience of convex tendon 403.
In the present embodiment, the material of described shim body 401 is Langaloy.Langaloy still can keep its good mechanical property at 950 DEG C, can meet the requirement of high-temperature flange sealing.Also can choose that other are high temperature resistant, the material of good mechanical property, high-temperature flange sealing can be met and seal durability requires.
The utility model additionally provides a kind of motor with catalyst converter pad, motor comprises pressurized machine 2 and catalyst converter 1, wherein, also comprise catalyst converter pad 4, catalyst converter pad 4 is arranged between pressurized machine 2 and catalyst converter 1, clamped by the flange of both sides, convex tendon is played the effect of exhaust sealing by compression.In the present embodiment, catalyst converter pad 4, pressurized machine 2 and catalyst converter 1 are assembled together by the clip 3 of a strap bolt, provide catalyst converter pad 4 axis sealing after bolt tightening, form a sealing system.
Under working state, because pressurized machine 2 exists the problem of cantilever vibration, be equivalent to the convex tendon 403 that a high frequency pumping source is ceaselessly being patted in shim body 401, convex tendon 403 is out of shape back and forth along the axial direction of shim body 401, when convex tendon 403 is by compression, convex tendon 403 produces a kind of spring-back force, i.e. sealing force, the connection be used between Sealing-off Catalytic device 1 and pressurized machine 2.
In the present embodiment, height is the difference relative to shim body 401, and the height of convex tendon 403 is 0.8 ± 0.07mm, and the thickness of shim body 401 and flange 404 is 0.2 ± 0.01mm.Shim body 401 outward edge is provided with flange 404, be equivalent to for convex tendon 403 reduces the compression height of 0.2 ± 0.01mm, convex tendon 403 is made to be become 0.2 ~ 0.8mm by compression height scope from 0 ~ 0.8mm, and the height maximum compression of convex tendon 403 is to the height of flange 404, make convex tendon 403 can not be compressed to ultimate state (namely being flattened fin height completely becomes 0), reduce the fatigue deformation amount of convex tendon 403, add the working life of catalyst converter pad 4.
The thickness of the height of convex tendon 403, the thickness of flange 404 and shim body 401 can be arranged according to actual needs, can meet effective sealing under the axle power of 950 degree of flange temperature, 12KN.Also FEA (finite element analysis) can be adopted to calculate tentatively examine convex tendon 403 and flange 404 can meet the designing requirement of effective sealing catalyst converter 1 and pressurized machine 2 and seal durability under the axle power of 950 DEG C of flange temperature and 12KN, if can effective sealing, then meet design requirement; If do not met, need to redesign, till meeting design requirement.
On above-described embodiment basis, the catalyst converter pad that the utility model embodiment provides, after design completes, also needs by GED (engine endurance test), GETC (engine cold thermal shock test) and car load endurance test.
Above, be described in detail in conjunction with specific embodiments to the technical solution of the utility model, described specific embodiment understands thought of the present utility model for helping.The derivation that those skilled in the art make on the basis of the utility model specific embodiment and modification also belong within the utility model protection domain.
Claims (8)
1. a catalyst converter pad, it is characterized in that, comprise: shim body, described shim body is provided with the center hole for connecting catalyst converter, described shim body is provided with convex tendon, and described convex tendon is positioned at the circumferential edge of described center hole, and described shim body circumferential edge is provided with flange, described flange is folded with towards center hole radial direction, and the height of described convex tendon is higher than the height of described flange.
2. catalyst converter pad as claimed in claim 1, it is characterized in that, described convex tendon is kink shape.
3. catalyst converter pad as claimed in claim 2, it is characterized in that, described convex tendon bends towards the central axis direction of described shim body.
4. catalyst converter pad as claimed in claim 3, is characterized in that, the plane at described convex tendon bottom and center hole place is in the acute angle preset.
5. catalyst converter pad as claimed in claim 1, it is characterized in that, described shim body is integrated impact briquetting.
6. catalyst converter pad as claimed in claim 5, it is characterized in that, the material of described shim body is Langaloy.
7. with a motor for catalyst converter pad, described motor comprises pressurized machine and catalyst converter, it is characterized in that, also comprise arbitrary described catalyst converter pad in claim 1-6, described catalyst converter pad is arranged between described pressurized machine and catalyst converter.
8., as claimed in claim 7 with the motor of catalyst converter pad, it is characterized in that, described catalyst converter pad, pressurized machine and catalyst converter pass through clip connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520654972.2U CN204961046U (en) | 2015-08-27 | 2015-08-27 | Catalyst converter gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520654972.2U CN204961046U (en) | 2015-08-27 | 2015-08-27 | Catalyst converter gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961046U true CN204961046U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520654972.2U Active CN204961046U (en) | 2015-08-27 | 2015-08-27 | Catalyst converter gasket |
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| Country | Link |
|---|---|
| CN (1) | CN204961046U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218394A (en) * | 2017-06-09 | 2017-09-29 | 长春鑫利密封制品有限公司 | Sealing device and automobile |
-
2015
- 2015-08-27 CN CN201520654972.2U patent/CN204961046U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218394A (en) * | 2017-06-09 | 2017-09-29 | 长春鑫利密封制品有限公司 | Sealing device and automobile |
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| GR01 | Patent grant |