CN102536506A - Seal gasket for engine exhaust system - Google Patents
Seal gasket for engine exhaust system Download PDFInfo
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- CN102536506A CN102536506A CN2012100342796A CN201210034279A CN102536506A CN 102536506 A CN102536506 A CN 102536506A CN 2012100342796 A CN2012100342796 A CN 2012100342796A CN 201210034279 A CN201210034279 A CN 201210034279A CN 102536506 A CN102536506 A CN 102536506A
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Abstract
A seal gasket for an engine exhaust system is assembled between a supercharger and an exhaust manifold and comprises an upper metal corrugated substrate, a lower metal corrugated substrate and a middle metal corrugated substrate, wherein the substrates are provided with all-corrugated seal ribs. Projections of the all-corrugated seal ribs of the upper metal corrugated substrate and projections of the all-corrugated seal ribs of the middle metal corrugated substrate are contact mutually and arranged symmetrically, recesses of the all-corrugated seal ribs of the lower metal corrugated substrate and recesses of the all-wave seal ribs of the middle metal corrugated substrate are in symmetrically opposite arrangement, and the upper metal corrugated substrate, the middle metal corrugated substrate and the lower metal corrugated substrate are welded integrally. Due to the fact that the middle layer of the seal gasket is the all-corrugated substrate, the seal gasket has the advantages that the height of the seal ribs of the seal gasket is increased without increasing cost, rebound effect of the compressed seal ribs is better, the unevenness of seal flanges can be recovered better, leakage passages on the seal flanges can be eliminated, and sealing effect can be better when the seal gasket is used for supercharged engine exhaust systems with high temperature and high exhaust pressure and flange deformation.
Description
Technical field
The invention belongs to the car engine machine technology, what be specifically related to is the engine exhaust system gasket structure.
Background technique
Employing engine booster technology can effectively be reduced engine displacement, under the prerequisite of not sacrificing any power output, replaces traditional NA engine of big discharge capacity with a small displacement engine.Therefore when keeping strong impetus, engine displacement be can significantly reduce again, oil consumption and exhaust emissions optimized.
But compare the transmission NA engine; The heat load of supercharged engine is big; Boost pressure is big; If engine exhaust system sealing gasket assembly can not bear this harsh operating mode and reduce sealability, not only can make motor lose the advantage that supercharging technology brings, also can further reduce engine performance.
The air-breathing engine exhaust system gasket structure of existing natural is gone into illustrated in figures 1 and 2; It is by a pair of upper/lower layer metallic ripple substrate 1,3 and is clipped in this intermediate plate between ripple substrate 2 is constituted that this is processed by forming ripply elastic metal sheet the ripple substrate.When this metallic gasket securely is clipped between the flange and is compressed into whole district's state; This is to the ripple compressive deformation of ripple substrate; Reaction because of its distortion; Make ripple substrate and intermediate plate between the two sides in the mutual powerful crimping of ripple and vicinity thereof, thereby stoped gas to spill, play seal action between opposing side through the air flue hole.But development along with the supercharged engine technology; The temperature of engine exhaust system constantly raises, and exhaust back pressure increases, and the amount of deformation of sealing flange face strengthens and the flange gap, gap of motor dynamic operation is strengthened; Because the ripple of the upper and lower of the sealing gasket of this structure directly contacts; The increase that the supercharged engine exhaust is pressed causes this ripple to be in the full compression state, and the height of effective seal ripple reduces, and can't remedy the gap of the flange of two cooperations; The ripple reaction force of full compression state reduces, thereby causes gas to be revealed between flanged surface.
In order to satisfy the requirement of present engine vent systems sealability, the present invention proposes a kind of novel engine vent systems gasket structure, form by three layers of elastic plate that has the ripple substrate, can have better sealability.
Summary of the invention
The objective of the invention is to provides a kind of vent systems sealing gasket of better sealing configuration, to satisfy the reliable sealing between high performance supercharged engine gas exhaust manifold and pressurized machine to current supercharged engine.
The present invention takes following technological scheme:
A kind of engine exhaust system sealing gasket is assemblied between pressurized machine and the gas exhaust manifold, and for circular, it includes the upper and lower wavy metal substrate, and all-wave line sealed muscle is arranged on the wavy metal base of the upper and lower; It is characterized in that: between the upper and lower ripple is basic, also be provided with metallic intermediate layer ripple substrate; All-wave line sealed muscle is also arranged on the metallic intermediate layer ripple substrate; The all-wave line sealed muscle convex portion of the all-wave line sealed muscle boss of said upper strata wavy metal substrate and metallic intermediate layer ripple substrate contacts and is symmetric arrangement; The sunk part of the sunk part of the all-wave line sealed muscle of lower metal ripple substrate and the all-wave line sealed muscle of metallic intermediate layer ripple substrate is symmetric arrangement in opposite directions, and three-layer metal ripple substrate is welded as a whole.
Engine exhaust system sealing gasket of the present invention adopts three layers of substrate that has all-wave line sealed muscle to form; When with bolt etc. with gas exhaust manifold and the fastening time-out of pressurized machine; The upper and lower layers ripple substrate of being seized on both sides by the arms between the two joins along with the distortion and the mesosphere of its ripple sealed muscle; Prevent ripple sealed muscle on upper strata ripple substrate and the lower floor's ripple substrate by full compression by the ripple on the mesosphere, compress back effective seal ripple height and increase, can remedy the out-of-flatness property of flanged surface on the one hand; The elastic reactance that compresses back sealing ripple on the other hand is stronger, thereby stops the gas in air flue hole to play seal action from spilling between opposing side.
Further, scribble the organic-molybdenum coating at upper strata ripple substrate and lower floor's ripple substrate and the flange contact facings end of invention, when gas exhaust manifold and pressurized machine in dynamic operation, play the effect of little sealing with the organic-molybdenum coating of the contacted metal gasket of its flanged surface.
Further, ripple substrate of the present invention adopts nickel content at 12% ~ 15% metal spring steel, and nickeliferous high metal spring steel high temperature resistant is strong, can make it under the condition of high temperature, still can keep original sealing characteristics.
The advantage that the present invention compares the maximum of the air-breathing engine exhaust system gasket structure of existing natural is under the situation higher for exhaust system temperature, that exhaust pressure big, the flange distortion amount is big; The intermediate plate of sealing pad adopts all-wave line substrate; Its sealing ripple height increases on the one hand, can remedy the Roughness of sealing flange face better, and the rebound effect that compresses the back sealed muscle on the other hand is stronger; Under the prerequisite that does not increase cost, obtain sealing effect better.
Description of drawings
Fig. 1: naturally aspirated engine vent systems sealing gasket front view
Fig. 2: existing engine exhaust system sealing gasket assembly sectional drawing
Fig. 3: engine exhaust system sealing gasket assembly sectional drawing of the present invention
Among the figure: 1-upper strata wavy metal substrate, 2-intermediate plate, 3-lower metal ripple substrate, 4 metallic intermediate layer ripple substrates.Arrow is represented gas flow.
Embodiment
Below in conjunction with Fig. 3 and through specific embodiment the present invention is described further.
Referring to Fig. 3, before spot welding was not combined, this engine exhaust system sealing gasket adopted three layers of substrate that has all-wave line sealed muscle to form at three-layer sealed pad, and substrate adopts nickel content at 12% ~ 15% metal spring steel.The sealed muscle convex portion of the sealed muscle boss of upper strata wavy metal substrate 1 and metallic intermediate layer ripple substrate 4 contacts and is symmetric arrangement; The sunk part of the ripple sealed muscle of the sealed muscle sunk part of lower floor's all-wave line substrate 3 and mesosphere all-wave line substrate 4 to and be symmetrically distributed, the sealed muscle ripple height of mesosphere all-wave line substrate 4 and upper strata with
Lower floorThe sealed muscle ripple height of substrate is identical; These three layers of all-wave line substrates are grouped together according to the mode spot welding of Fig. 3 again; Upper strata ripple substrate and lower floor's ripple substrate and flange contact facings end scribble the organic-molybdenum coating, can make engine supercharger sealing gasket assembly have excellent sealing performance.
Claims (4)
1. an engine exhaust system sealing gasket is assemblied between pressurized machine and the gas exhaust manifold, and for circular, it includes the upper and lower wavy metal substrate, and all-wave line sealed muscle is arranged on the wavy metal substrate of the upper and lower; It is characterized in that: between the ripple substrate of the upper and lower, also be provided with metallic intermediate layer ripple substrate; All-wave line sealed muscle is also arranged on the metallic intermediate layer ripple substrate; The all-wave line sealed muscle convex portion of the all-wave line sealed muscle boss of said upper strata wavy metal substrate and metallic intermediate layer ripple substrate contacts and is symmetric arrangement; The sunk part of the sunk part of the all-wave line sealed muscle of lower metal ripple substrate and the all-wave line sealed muscle of metallic intermediate layer ripple substrate is symmetric arrangement in opposite directions, and three-layer metal ripple substrate is welded as a whole.
2. engine exhaust system sealing gasket according to claim 1, it is characterized in that: said upper strata wavy metal substrate and lower metal ripple substrate contact the organic-molybdenum coating that one side has scribbled little seal action with flange.
3. engine exhaust system sealing gasket according to claim 1 is characterized in that: said wavy metal substrate adopts nickel content at 12% ~ 15% metal spring steel.
4. engine exhaust system sealing gasket according to claim 1 is characterized in that: have the height of all-wave line sealed muscle identical on the height of the all-wave line sealed muscle of metallic intermediate layer ripple substrate and the upper and lower wavy metal base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100342796A CN102536506A (en) | 2012-02-16 | 2012-02-16 | Seal gasket for engine exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100342796A CN102536506A (en) | 2012-02-16 | 2012-02-16 | Seal gasket for engine exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102536506A true CN102536506A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100342796A Pending CN102536506A (en) | 2012-02-16 | 2012-02-16 | Seal gasket for engine exhaust system |
Country Status (1)
| Country | Link |
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| CN (1) | CN102536506A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321773A (en) * | 2013-06-25 | 2013-09-25 | 南阳国宇密封发展有限公司 | Catalyst gasket and processing method thereof |
| CN105156224A (en) * | 2015-10-30 | 2015-12-16 | 重庆长安汽车股份有限公司 | Exhaust manifold sealing gasket |
| CN106662249A (en) * | 2014-08-07 | 2017-05-10 | Nok株式会社 | Metal gasket |
| CN111421903A (en) * | 2020-04-08 | 2020-07-17 | 马鞍山市麦克英孚机械科技有限公司 | Three-layer sealing gasket and assembly method thereof |
| CN112555536A (en) * | 2020-12-17 | 2021-03-26 | 江西五十铃汽车有限公司 | Flange sealing gasket structure |
Citations (6)
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| US4721315A (en) * | 1985-12-27 | 1988-01-26 | Nihon Metal Gasket Kabushiki Kaisha | Metallic cylinder head gasket |
| DE4330780A1 (en) * | 1992-09-11 | 1994-03-17 | Dana Corp | Multi-layer cylinder head gasket |
| US5979906A (en) * | 1997-02-13 | 1999-11-09 | Farnam/Meillor Sealing Systems Inc. | Multi-layered metal gasket assembly and method of constructing the same |
| JP2002147609A (en) * | 2000-11-09 | 2002-05-22 | Ishikawa Gasket Co Ltd | Head gasket |
| CN101408247A (en) * | 2007-10-12 | 2009-04-15 | 石川密封垫板有限责任公司 | Metal gasket |
| CN202031722U (en) * | 2011-03-24 | 2011-11-09 | 杨兰 | All-metal exhaust pipe gasket for engine |
-
2012
- 2012-02-16 CN CN2012100342796A patent/CN102536506A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4721315A (en) * | 1985-12-27 | 1988-01-26 | Nihon Metal Gasket Kabushiki Kaisha | Metallic cylinder head gasket |
| DE4330780A1 (en) * | 1992-09-11 | 1994-03-17 | Dana Corp | Multi-layer cylinder head gasket |
| US5979906A (en) * | 1997-02-13 | 1999-11-09 | Farnam/Meillor Sealing Systems Inc. | Multi-layered metal gasket assembly and method of constructing the same |
| JP2002147609A (en) * | 2000-11-09 | 2002-05-22 | Ishikawa Gasket Co Ltd | Head gasket |
| CN101408247A (en) * | 2007-10-12 | 2009-04-15 | 石川密封垫板有限责任公司 | Metal gasket |
| CN202031722U (en) * | 2011-03-24 | 2011-11-09 | 杨兰 | All-metal exhaust pipe gasket for engine |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321773A (en) * | 2013-06-25 | 2013-09-25 | 南阳国宇密封发展有限公司 | Catalyst gasket and processing method thereof |
| CN103321773B (en) * | 2013-06-25 | 2016-11-23 | 南阳国宇密封发展有限公司 | Catalyst gasket and processing method thereof |
| CN106662249A (en) * | 2014-08-07 | 2017-05-10 | Nok株式会社 | Metal gasket |
| US9885418B2 (en) | 2014-08-07 | 2018-02-06 | Nok Corporation | Metal gasket |
| CN106662249B (en) * | 2014-08-07 | 2019-02-12 | Nok株式会社 | Metal gasket |
| CN105156224A (en) * | 2015-10-30 | 2015-12-16 | 重庆长安汽车股份有限公司 | Exhaust manifold sealing gasket |
| CN111421903A (en) * | 2020-04-08 | 2020-07-17 | 马鞍山市麦克英孚机械科技有限公司 | Three-layer sealing gasket and assembly method thereof |
| CN112555536A (en) * | 2020-12-17 | 2021-03-26 | 江西五十铃汽车有限公司 | Flange sealing gasket structure |
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Application publication date: 20120704 |