CN204299704U - Ignition electric nozzle cermet seal - Google Patents
Ignition electric nozzle cermet seal Download PDFInfo
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- CN204299704U CN204299704U CN201420369180.6U CN201420369180U CN204299704U CN 204299704 U CN204299704 U CN 204299704U CN 201420369180 U CN201420369180 U CN 201420369180U CN 204299704 U CN204299704 U CN 204299704U
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- electric nozzle
- ignition electric
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Abstract
A kind of ignition electric nozzle cermet seal disclosed in the utility model, comprise one for connecting metal light wall pipe (1) and the earthenware (3) of consubstantiality sintering on metal light wall pipe (1) hole wall of ignition electric nozzle shell, earthenware (3) is a cylindrical tube being shaped with multidiameter, with cylinder table on pipe shaft, cylinder table is by multilayer composite (2) transition connection metal light wall pipe (1).The utility model is reasonably combined by multilayer materials, utilize metal/non-metal azeotropic nature to realize the sealing of metal/ceramic, have that sealing qualification rate is high, reliability is high, environment for use temperature range is wide, the life-span is long, the advantage of sealing property parameter stability.Solve that ignition electric nozzle metal and nonmetallic ceramics seal member sealing technology are complicated, to seal qualification rate low, the problems such as the life-span is short, high temperature is oxidizable, make thermoelectricity mouth seal member can work reliably and with long-term under the mal-conditions such as-55 DEG C ~+600 DEG C environment temperatures and 4MPa high pressure.
Description
Technical field
The utility model relates to a kind of seal of ignition electric nozzle being mainly used in Aeronautics and Astronautics engine, fuel oil, gas engine.
Background technology
Reliability is one of decisive factor of engine igniting system task performance, is also a kind of important mass property that must ensure in engine igniting system, not only requires superior performance, requires that the life-span is long, fault is few, keeps in repair well, easily ensures.For the ignition electric nozzle of Aeronautics and Astronautics in prior art, the main ignition electric nozzle adopting glass sintering to be difficult to realize sealing between metal and the foreign material such as nonmetal and sealing intensity to require.Because ignition electric nozzle is applied to engine chamber, residing harsh environmental conditions, high temperature up to 600 DEG C, the mal-condition such as high pressure 4Mpa, 20000m high-altitude, require that ignition electric nozzle has good sealing property in life cycle management.The ignition electric nozzle product qualified rate of this employing glass sintering is low, and environment for use temperature range is narrow, poor reliability, and short for service life-55 DEG C ~+520 DEG C environment temperatures, leak rate is high, and sealing qualification rate is extremely low.
Summary of the invention
The purpose of this utility model is the weak point existed for above-mentioned prior art, provides that high, the reliable height of a kind of sealing qualification rate, environment for use temperature are wide, the life-span is long, the ignition electric nozzle seal of sealing property parameter stability.
The utility model solves the technical scheme that its technical problem adopts: a kind of ignition electric nozzle cermet seal, comprise one for connecting metal light wall pipe 1 and the earthenware 3 of consubstantiality sintering on metal light wall pipe 1 hole wall of ignition electric nozzle shell, it is characterized in that, earthenware 3 is the cylindrical tubes being shaped with multidiameter, with cylinder table on pipe shaft, cylinder table by multilayer composite 2 transition connection metal light wall pipe 1, forms the hermetically-sealed construction of the one that to be connected with metal/ceramic.
The utility model has following beneficial effect compared to prior art.
The utility model is reasonably combined by multilayer materials, utilize metal/non-metal azeotropic nature to realize the sealing of metal/ceramic, have that sealing qualification rate is high, reliability is high, environment for use temperature range is wide, the life-span is long, the advantage of sealing property parameter stability.
By multilayer composite, the utility model guarantees that metal is connected with the reliable of pottery, realize metal and ceramic sealing property requirement.Seal with metal/ceramic be connected one hermetically-sealed construction, the sealing technology of metal/non-metal complexity is become the welding procedure of simple metal/metal, assembling is simple, solder yield is high, works reliably and with long-term under meeting the mal-conditions such as-55 DEG C ~+600 DEG C environment temperatures, 4Mpa high pressure, 20000m high-altitude.Employing cermet material MULTILAYER COMPOSITE technology solves ignition electric nozzle metal and nonmetallic ceramics seal member sealing technology is complicated, it is low to seal qualification rate, the problems such as the life-span is short, high temperature is oxidizable, make thermoelectricity mouth seal member can work reliably and with long-term under the mal-conditions such as-55 DEG C ~+600 DEG C environment temperatures and 4Mpa high pressure.
Accompanying drawing explanation
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof, but is not therefore limited among described scope of embodiments by the utility model.
Fig. 1 is the organigram of the utility model ignition electric nozzle cermet seal.
In figure: 1 metal light wall pipe, 2 multilayer composites, 3. earthenware.
Detailed description of the invention
See Fig. 1.In the ignition electric nozzle seal described in the drawings, comprise one for connecting metal light wall pipe 1 and the earthenware 3 of consubstantiality sintering on metal light wall pipe 1 hole wall of ignition electric nozzle shell, earthenware 3 is the cylindrical tubes being shaped with multidiameter, with cylinder table on pipe shaft, cylinder table is by multilayer composite 2 transition connection metal light wall pipe 1.Earthenware 3 is by multilayer composite 2 transition connection metal light wall pipe 1.Multilayer composite is metal material and ceramic material complex.Multilayer composite is layered on the cylinder table of earthenware by the number of turns, is then sintered together.For meeting the integrated environment performance requirement of metallic conduction, ceramic insulation and parts, multilayer composite 2 is made up of the composite bed A be connected successively, composite bed B, composite bed C, composite bed D, composite bed E, composite bed F, composite bed G, composite bed H, composite bed I.Wherein, composite bed A, composite bed B, composite bed C, composite bed D compound are reliably connected with metal light wall pipe 1; Composite bed F, composite bed G, composite bed H, composite bed I are reliably connected with earthenware 3 cylinder table.
Claims (7)
1. an ignition electric nozzle cermet seal, comprise one for connecting metal light wall pipe (1) and the earthenware (3) of consubstantiality sintering on metal light wall pipe (1) hole wall of ignition electric nozzle shell, it is characterized in that, earthenware (3) is a cylindrical tube being shaped with multidiameter, with cylinder table on pipe shaft, cylinder table by multilayer composite (2) transition connection metal light wall pipe (1), forms the hermetically-sealed construction of the one that to be connected with metal/ceramic.
2. ignition electric nozzle cermet seal according to claim 1, is characterized in that: earthenware (3) is by multilayer composite (2) transition connection metal light wall pipe (1).
3. ignition electric nozzle cermet seal according to claim 1, is characterized in that: multilayer composite (2) is made up of the composite bed A be connected successively, composite bed B, composite bed C, composite bed D, composite bed E, composite bed F, composite bed G, composite bed H and composite bed I.
4. ignition electric nozzle cermet seal according to claim 3, is characterized in that: composite bed A, composite bed B, composite bed C are reliably connected with metal light wall pipe (1) with composite bed D.
5. ignition electric nozzle cermet seal according to claim 3, is characterized in that: composite bed F, composite bed G, composite bed H, composite bed I are reliably connected with earthenware (3) cylinder table.
6. ignition electric nozzle cermet seal according to claim 1, is characterized in that: multilayer composite is metal material and ceramic material complex.
7. ignition electric nozzle cermet seal according to claim 1, is characterized in that: multilayer composite is layered on the cylinder table of earthenware by the number of turns, is sintered together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369180.6U CN204299704U (en) | 2014-07-06 | 2014-07-06 | Ignition electric nozzle cermet seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369180.6U CN204299704U (en) | 2014-07-06 | 2014-07-06 | Ignition electric nozzle cermet seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204299704U true CN204299704U (en) | 2015-04-29 |
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ID=53105250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420369180.6U Active CN204299704U (en) | 2014-07-06 | 2014-07-06 | Ignition electric nozzle cermet seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204299704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599744A (en) * | 2018-10-31 | 2019-04-09 | 四川泛华航空仪表电器有限公司 | A kind of semiconductor component production method for sparking plug |
-
2014
- 2014-07-06 CN CN201420369180.6U patent/CN204299704U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599744A (en) * | 2018-10-31 | 2019-04-09 | 四川泛华航空仪表电器有限公司 | A kind of semiconductor component production method for sparking plug |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |