CN202381173U - Low-voltage high-energy electric ignition plug sealing member - Google Patents
Low-voltage high-energy electric ignition plug sealing member Download PDFInfo
- Publication number
- CN202381173U CN202381173U CN2011205307268U CN201120530726U CN202381173U CN 202381173 U CN202381173 U CN 202381173U CN 2011205307268 U CN2011205307268 U CN 2011205307268U CN 201120530726 U CN201120530726 U CN 201120530726U CN 202381173 U CN202381173 U CN 202381173U
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- metal
- pipe
- ignition plug
- electric
- sealing member
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Abstract
The utility model provides a low-voltage high-energy electric ignition plug sealing member, which comprises a metal pipe fitting shell (1) and a conduction rod (4), wherein the metal pipe fitting shell (1) is connected with an ignition plug, a metal connection pipe sleeve (2) sealed in a barrel body at the tail end of the metal pipe fitting shell, the conduction rod (4) of the ignition plug extends into the barrel body of the metal pipe fitting shell through a central hole of a ceramic pipe (3), the tail portion of the conduction rod (4) is sealed at the tail end of the ceramic pipe (3) by a metal sealing sleeve (5), the ceramic pipe penetrates through a central hole of the metal connection pipe sleeve, a shaft step cylinder on the waist of the ceramic pipe (3) is closely assembled in a hole of a cover of the metal connection pipe sleeve, and the sealing connection position between the metal connection pipe sleeve and the ceramic pipe are seal welded into a whole through liquid 4J34 alloy solders. According to the low-voltage high-energy electric ignition plug sealing member, a metal/ ceramic sealing welding structure and the special solders are adopted for finishing the electric ignition plug sealing member, and the low-voltage high-energy electric ignition plug sealing member can be subjected to a long-term reliable work under severe conditions with the environment temperature from 55 DEG C below zero to 650 DEG C and the high pressure 3 Mpa.
Description
Technical field
The utility model relates to a kind of ignition electric nozzle that the Aeronautics and Astronautics motor is used that is mainly used in.
Background technique
The ignition electric nozzle that is used for Aeronautics and Astronautics in the existing technology mainly adopts glass sintering be difficult to realize the ignition electric nozzle that sealing and sealing intensity between metal and the foreign material such as nonmetal require.Because ignition electric nozzle is applied to engine chamber, environmental conditions of living in is abominable, high temperature up to 650 ℃, mal-conditions such as high pressure 3Mpa, 20000m high-altitude, require ignition electric nozzle in cycle life-cycle, to have excellent sealing performance.The ignition electric nozzle product qualified rate of this employing glass sintering is low, and the Environmental Conditions temperature range is narrow, poor reliability, and short working life-55 ℃～+ 520 ℃ ambient temperatures, leak rate is high.Reliability is one of determinant factor of engine igniting system task performance, also is a kind of important mass property that must guarantee in the engine igniting system, not only requires superior performance, require the life-span long, fault is few, good maintenance, be prone to ensure.
Summary of the invention
The purpose of the utility model is the deficiency that exists to above-mentioned existing technology, provide a kind of sealing up-to-standard rate high, reliable high, the Environmental Conditions temperature is wide, the life-span long, the ignition electric nozzle seal of sealability parameter stability.
The utility model solves the technological scheme that its technical problem adopted: a kind of low pressure high energy electric ignition sparking plug seal; The metal pipe element housing 1 that comprises a connection ignition electric nozzle; Metal connecting tube cover 2; Metallic sleeve gasket 5 and electric-conducting stem 4 is characterized in that, at said metal pipe element housing 1 tail end; Be provided with a metal connecting tube cover 2 that is sealed in said metal pipe element housing 1 afterbody cylindrical shell; The electric-conducting stem 4 of ignition electric nozzle stretches into metal pipe element housing 1 cylindrical shell through the center hole of stoneware pipe 3, and electric-conducting stem 4 afterbodys are sealed in the end of stoneware pipe 3 by metallic sleeve gasket 5, and stoneware pipe 3 overlaps 2 center holes through metal connecting tube; Go up between waist that pillow block rank cylinder closely is assemblied in the block hole of metal connecting tube cover 2, metallic sleeve gasket and stoneware pipe 3 envelope junctions are by 4J34 solder liquid airproof, metal of the same race joint melting welding is sealed into one.
The utility model has following beneficial effect than existing technology.
The utility model adopts metal/ceramic sealing erection welding structure; Choose the scolder of corresponding uniqueness and accomplish low pressure high energy electric ignition sparking plug seal, can under mal-conditions such as-55 ℃～+ 650 ℃ ambient temperatures, 3Mpa high pressure, 20000m high-altitude, work reliably and with long-term.Utilize the 4J34 solder metal/ceramic pipe to be had good soldering wettability, spreadability and calking property, overcome existing technology-55 ℃～+ 520 ℃ ambient temperatures and the defective that leak rate is high, working life is short in high temperature condition.
The utility model is reasonable through the welded gaps between the soldering part; Utilize liquid metal " capillary " effect to realize the sealing of metal/ceramic, have that the sealing up-to-standard rate is high, reliability is high, the Environmental Conditions temperature range is wide, the life-span is long, the advantage of sealability parameter stability.
Description of drawings
The concrete structure of the utility model is provided by following embodiment and accompanying drawing thereof, but therefore the utility model is not limited among the described scope of embodiments.
Fig. 1 is the utility model ignition electric nozzle sealed body structure schematic representation.
Among the figure: 1. metal pipe element housing, 2. metal connecting tube cover, 3. stoneware pipe, 4. electric-conducting stem, 5. metallic sleeve gasket.
Embodiment
Referring to Fig. 1.In the ignition electric nozzle seal of describing in the drawings, have a columniform metal pipe element shell 1 and stoneware pipe 3, metal connecting tube cover 2, metallic sleeve gasket 5 and electric-conducting stem 4.The electric-conducting stem 4 of ignition electric nozzle stretches into metal pipe element housing 1 cylindrical shell through the center hole of stoneware pipe 3; Electric-conducting stem 4 afterbodys are sealed in the end of stoneware pipe 3 by metallic sleeve gasket 5; Stoneware pipe 3 overlaps 2 center holes through metal connecting tube; Go up between waist that pillow block rank cylinder closely is assemblied in the block hole of metal connecting tube cover 2, metallic sleeve gasket and stoneware pipe 3 envelope junctions are by 4J34 solder liquid airproof, metal of the same race joint melting welding is sealed into one.
Metal connecting tube cover 2 is inserted in stoneware pipe 3, and metallic sleeve gasket 5 is inserted in stoneware pipe 3, then stoneware pipe 3 and metal connecting tube cover 2 is carried out sealed with brazing property; Then with electric-conducting stem 4 through the stoneware pipe 3 metal connecting sleeve 5 of packing into.At last with the metal pipe element housing 1 metal connecting tube cover 2 of packing into.Belong to metal pair of the same race joint and carry out the melting welding sealing; Ignition electric nozzle is the sealing requirements of cell cube.Metal connecting tube cover 2, metallic sleeve gasket 5 and be inserted in stoneware pipe 3 cover envelope gaps, junction and be (0.005～0.01) mm; After each part is seated; Welding temperature (850～1100) ℃ adopts the 4J34 solder seal sealing that stoneware pipe is had good soldering wettability.
Claims (2)
1. low pressure high energy electric ignition sparking plug seal; The metal pipe element housing (1), metal connecting tube cover (2), metallic sleeve gasket (5) and the electric-conducting stem (4) that comprise a connection ignition electric nozzle; It is characterized in that; At said metal pipe element housing (1) tail end; Be provided with a metal connecting tube cover (2) that is sealed in said metal pipe element housing (1) afterbody cylindrical shell; The electric-conducting stem of ignition electric nozzle (4) stretches into metal pipe element housing (1) cylindrical shell through the center hole of stoneware pipe (3), and electric-conducting stem (4) afterbody is sealed in the end of stoneware pipe (3) by metallic sleeve gasket (5), and stoneware pipe (3) is through metal connecting tube cover (2) center hole; Go up between waist that pillow block rank cylinder closely is assemblied in the block hole of metal connecting tube cover (2), metallic sleeve gasket and stoneware pipe (3) seal the junction by 4J34 solder liquid airproof, metal of the same race joint melting welding is sealed into one.
2. low pressure high energy electric ignition sparking plug seal according to claim 1 is characterized in that, metal connecting tube cover (2), metallic sleeve gasket (5) and to be inserted in stoneware pipe (3) cover envelope gap, junction be 0.005～0.01mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205307268U CN202381173U (en) | 2011-12-16 | 2011-12-16 | Low-voltage high-energy electric ignition plug sealing member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205307268U CN202381173U (en) | 2011-12-16 | 2011-12-16 | Low-voltage high-energy electric ignition plug sealing member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381173U true CN202381173U (en) | 2012-08-15 |
Family
ID=46629686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205307268U Expired - Lifetime CN202381173U (en) | 2011-12-16 | 2011-12-16 | Low-voltage high-energy electric ignition plug sealing member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381173U (en) |
-
2011
- 2011-12-16 CN CN2011205307268U patent/CN202381173U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |
|
| CX01 | Expiry of patent term |