CN202937808U - Fuel oil sealing washer with polytetrafluoroethylene coatings - Google Patents
Fuel oil sealing washer with polytetrafluoroethylene coatings Download PDFInfo
- Publication number
- CN202937808U CN202937808U CN 201220585611 CN201220585611U CN202937808U CN 202937808 U CN202937808 U CN 202937808U CN 201220585611 CN201220585611 CN 201220585611 CN 201220585611 U CN201220585611 U CN 201220585611U CN 202937808 U CN202937808 U CN 202937808U
- Authority
- CN
- China
- Prior art keywords
- sealing washer
- fuel oil
- magnesium
- washer
- oil sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 21
- 238000000576 coating method Methods 0.000 title claims abstract description 15
- 239000000295 fuel oil Substances 0.000 title abstract description 6
- -1 polytetrafluoroethylene Polymers 0.000 title abstract 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 title abstract 3
- 239000004810 polytetrafluoroethylene Substances 0.000 title abstract 3
- 239000000446 fuel Substances 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 10
- 229910001051 Magnalium Inorganic materials 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052802 copper Inorganic materials 0.000 abstract description 6
- 239000010949 copper Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 abstract description 5
- 229910001431 copper ion Inorganic materials 0.000 abstract description 5
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 229910000838 Al alloy Inorganic materials 0.000 abstract 3
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 abstract 3
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Images
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- Gasket Seals (AREA)
Abstract
The utility model discloses a fuel oil sealing washer with polytetrafluoroethylene coatings. The sealing washer comprises three layers, wherein a body is a magnesium-aluminum alloy layer, and the polytetrafluoroethylene coatings are uniformly coated on planes at two sides of the body. Because the sealing washer formed by stamping the magnesium-aluminum alloy has better sealing property and deformation compensation capacity; compared with a copper washer, the sealing washer is not easily squashed by an applied pretightening force; compared with a compound sealing washer, the fuel oil sealing washer can not generate rubber scraps in a screwing process; and the magnesium-aluminum alloy does not contain harmful materials such as copper ions and zinc ions to an electronic control high pressure common rail system, the medium pollution is sealed, and the requirement of an electronic control engine high pressure common rail fuel oil system on the fuel oil sealing washer can be met.
Description
Technical field
The utility model relates to a kind of motor fuel sealing packing ring.
Background technique
Between engine part, the seal washer of binding site typically uses the copper washer that composite seal washer that the galvanized steel plain sheet vulcanized rubber makes or copper coin punching press are made.Composite seal washer rubber in rundown process easily is torn and forms chip blocking pipe, valve, and zinc coat can form Zinc ion, and copper washer can make and forms copper ion in pipeline, and the microcosmic sealability is relatively poor, easily forms seepage in rundown process.Progress along with engine technology, motor begins progressively to use electronic control system, requirement according to electronic control system, do not allow to exist Zinc ion, copper ion in oil-fired system, otherwise the sediments blocking pipeline can occur, therefore in engine fuel oil system, tradition can't satisfy the engine operation reliability requirement with composite seal washer, copper washer.
Summary of the invention
The utility model just is to provide a kind of seal washer of polytetrafluorethylecoatings coatings, and good seal and stopped to be polluted by the sealing medium of conventional seals packing ring satisfies the electric-control motor high-pressure common-rail fuel system to the requirement of fuel sealing.
The utility model is achieved in that a kind of fuel sealing packing ring of polytetrafluorethylecoatings coatings, and seal washer forms by three layers, and body is the magnalium layer, and the both sides of body are flat
On face, uniform fold has polytetrafluorethylecoatings coatings.
Because the packing ring of being made by magnalium has good sealing property, and stopped to be polluted by the sealing medium of conventional seals packing ring, can satisfy the electric-control motor high-pressure common-rail fuel system to the requirement of fuel sealing.
Description of drawings
Fig. 1 is the gasket structure schematic diagram of polytetrafluorethylecoatings coatings.
In figure, 2 is body, and 1 is polytetrafluorethylecoatings coatings.
Embodiment
As shown in Figure 1, a kind of fuel sealing packing ring of polytetrafluorethylecoatings coatings, sealing gasket
Circle forms by three layers, and body 2 is the magnalium layer, and on two side planes of body 2, uniform fold has polytetrafluorethylecoatings coatings 1.Seal washer body 2 is made by the magnalium punching press, and the polytetrafluorethylecoatings coatings 1 that covers on 2 liang of side planes of seal washer body is to spray to form after the surperficial activated processing of packing ring body 2.Magnalium is the material harmful to electronic control system such as copper ions, Zinc ion not, the polytetrafluorethylecoatings coatings 1 on surface is well to lubricate and sealing material, possess lubricating contact face in the assembling rundown process, make up in the course of the work the effect in microcosmic gap.Compare with composite seal washer, can not form rubber scraps in rundown process, compare the pretightening force conquassation that is not easy to be applied in copper washer.
The utility model manufacturing is simple, can solve electric-control motor fuel sealing packing ring in use assembles to damage and causes seal failure, form chip and stop up fuel pipe and produce zinc, the copper ion problem harmful to the electric-control motor high pressure co-rail system, thereby improved the engine operation reliability.
Claims (1)
1. the fuel sealing packing ring of a polytetrafluorethylecoatings coatings, is characterized in that seal washer forms by three layers, and body is the magnalium layer, and on two side planes of body, uniform fold has polytetrafluorethylecoatings coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585611 CN202937808U (en) | 2012-11-08 | 2012-11-08 | Fuel oil sealing washer with polytetrafluoroethylene coatings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585611 CN202937808U (en) | 2012-11-08 | 2012-11-08 | Fuel oil sealing washer with polytetrafluoroethylene coatings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937808U true CN202937808U (en) | 2013-05-15 |
Family
ID=48322046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220585611 Expired - Fee Related CN202937808U (en) | 2012-11-08 | 2012-11-08 | Fuel oil sealing washer with polytetrafluoroethylene coatings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937808U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633113A (en) * | 2014-12-31 | 2015-05-20 | 江苏安德信超导加速器科技有限公司 | Novel aluminium magnesium alloy seal ring |
| CN106641248A (en) * | 2016-12-24 | 2017-05-10 | 惠州市富美真空镀膜有限公司 | Novel sealing ring coated with Teflon coating layer |
| CN112219048A (en) * | 2018-06-06 | 2021-01-12 | 西格里碳素欧洲公司 | Layer composite for seals |
-
2012
- 2012-11-08 CN CN 201220585611 patent/CN202937808U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633113A (en) * | 2014-12-31 | 2015-05-20 | 江苏安德信超导加速器科技有限公司 | Novel aluminium magnesium alloy seal ring |
| CN106641248A (en) * | 2016-12-24 | 2017-05-10 | 惠州市富美真空镀膜有限公司 | Novel sealing ring coated with Teflon coating layer |
| CN112219048A (en) * | 2018-06-06 | 2021-01-12 | 西格里碳素欧洲公司 | Layer composite for seals |
| CN112219048B (en) * | 2018-06-06 | 2023-03-03 | 西格里碳素欧洲公司 | Layer composite for seals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20191108 |