CN202832855U - Preposition jet flow igniter with function of low-pass filtering - Google Patents
Preposition jet flow igniter with function of low-pass filtering Download PDFInfo
- Publication number
- CN202832855U CN202832855U CN 201220559379 CN201220559379U CN202832855U CN 202832855 U CN202832855 U CN 202832855U CN 201220559379 CN201220559379 CN 201220559379 CN 201220559379 U CN201220559379 U CN 201220559379U CN 202832855 U CN202832855 U CN 202832855U
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- metal shell
- jet flow
- top cover
- jetting hole
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Abstract
The utility model relates to a preposition jet flow igniter with a function of low-pass filtering, and belongs to the field of civil rocket engines. The preposition jet flow igniter with the function of low-pass filtering aims at solving the problems that traditional mesh enclosure type igniters are large in instantaneous explosive force, quite short in ignition time, poor in anti-interference property, rigor in storage conditions and the like. According to the preposition jet flow igniter with the function of low-pass filtering, a molding mesh body of a traditional structure is replaced by a shell body and a top cover which are made of metal, and intensity of a product self is strengthened. Jet flow holes are formed in the metal shell body and the top cover, high temperature and high pressure air generated through powder igniting is enabled to form an energy-gathered jet flow through a circumferential sting-out hole and a jet flow sting-out hole, igniting time is lengthened, and reliable ignition of engine powder charging is achieved. The preposition jet flow igniter with the function of low-pass filtering effectively improved safety of the igniter in storage, transport and use.
Description
Technical field
The utility model relates to a kind of preposition jet initiation tool with lower pass-filter function, belongs to the civil rocket engine art.
Background technique
Igniter in the tradition civil rocket motor generally adopts the net cover type igniter, the structure that adopts the moulding dictyosome to entangle ignition powder, its structural representation as shown in Figure 3, in use there is following shortcoming in the net cover type igniter: the instantaneous explosive power that forms when 1) working, powder charge to motor has damage, easily causes engine explosions; 2) firing time very short, sometimes causing a little not phenomenon, make the rocket misfire; 3) the netted resin glue that leans on seals its in-built ignition powder, colliding with in carrying, or be prone to the guard breakage after the humidity and leak the medicine situation, service condition is subject to great limitation; 4) can not filtering to high-frequency signal (such as thunder and lightning etc.), can cause the mistake of rocket to get angry phenomenon.
The model utility content
The purpose of this utility model is in order to solve the problems such as the instantaneous explosive power that traditional net cover type igniter exists is large, firing time is very short, anti-interference is poor, condition of storage is harsh, and a kind of preposition jet initiation tool with lower pass-filter function is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of preposition jet initiation tool with lower pass-filter function of the present utility model comprises base, ignition powder, metal shell, ignition module, lining paper, circumferential fire jetting hole, low-pass filter, wire, top cover, jet fire jetting hole;
Rear end and the base of the metal shell of tubular construction are fixed, the sidewall of metal shell is processed with circumferential fire jetting hole, the lumen loading ignition powder of metal shell, be provided with lining paper between ignition powder and the metal shell inwall, the front end of metal shell is fixing by the top cover encapsulation, have the jet fire jetting hole on the top cover, ignition module is embedded in ignition powder inside, ignition module is drawn two wires and is passed with fire control system from the jet fire jetting hole of top cover and link to each other, and the wire of drawing inner at ignition powder, ignition module arranges low-pass filter.
The gross area in hole accounts for the 1/22-1/18 of metal shell and top cover surface area, and the aperture is 4～7mm.
The circumferential fire jetting hole of metal shell sidewall evenly distributes, and the jet fire jetting hole on the top cover therefrom distributes around the mind-set, and therefrom successively decreases around the mind-set in the aperture of jet fire jetting hole.
The beneficial effects of the utility model: the high temperature that igniter of the present utility model produces ignition powder, pressurized gas form energy-gathering jetting by circumferential fire jetting hole and jet fire jetting hole, have improved firing time, have realized the reliable ignition to motor charge.In addition, the utility model adopts the shell construction of sheet metal, and application of low-pass filters in the circuit, when strengthening the intensity of product own, has also improved the anti-static electricity property of product, has improved greatly the Security of igniter in preserving, transport and using.
Description of drawings
Fig. 1 is the structural representation of the preposition igniter of the utility model;
Fig. 2 is the left view of top cover in the preposition igniter of the utility model;
Fig. 3 is traditional network structure igniter schematic diagram;
Wherein, 1-base; The 2-ignition powder; The 3-metal shell; The 4-ignition module; The 5-lining paper; The circumferential fire jetting hole of 6-; The 7-low-pass filter; The 8-wire; The 9-top cover; 10-jet fire jetting hole.
Embodiment
Below in conjunction with accompanying drawing preferred example of the present utility model is further described:
A kind of preposition jet initiation tool with lower pass-filter function of the present utility model, as shown in Figure 1, comprise base 1, ignition powder 2, metal shell 3, ignition module 4, lining paper 5, circumferential fire jetting hole 6, low-pass filter 7, wire 8, top cover 9, jet fire jetting hole 10;
The rear end of the metal shell 3 of tubular construction and base 1 are fixing, the sidewall of metal shell 3 is processed with circumferential fire jetting hole 6, the lumen loading ignition powder 2 of metal shell 3, be provided with lining paper 5 between ignition powder 2 and metal shell 3 inwalls, the front end of metal shell 3 is fixing by top cover 9 encapsulation, have jet fire jetting hole 10 on the top cover 9, ignition module 4 is embedded in ignition powder 2 inside, ignition module 4 is drawn two wires 8 and is passed with fire control system from the jet fire jetting hole of top cover 9 and link to each other, and at the wire of drawing of ignition powder 2 inside, ignition module 4 low-pass filter 7 is set.
The material of metal shell 3 and top cover 9 is aluminium 2A12, the hole that to be evenly equipped with 42 diameters on the metal shell be 5mm, and the jet fire jetting hole on the top cover 9 is uniform 28 fire jetting holes of three circles around the mind-set therefrom, and aperture from the inside to surface is respectively 7,5,4mm.
Claims (3)
1. the preposition jet initiation tool with lower pass-filter function is characterized in that: comprise base, ignition powder, metal shell, ignition module, lining paper, circumferential fire jetting hole, low-pass filter, wire, top cover, jet fire jetting hole;
Rear end and the base of the metal shell of tubular construction are fixed, the sidewall of metal shell is processed with circumferential fire jetting hole, the lumen loading ignition powder of metal shell, be provided with lining paper between ignition powder and the metal shell inwall, the front end of metal shell is fixing by the top cover encapsulation, have the jet fire jetting hole on the top cover, ignition module is embedded in ignition powder inside, ignition module is drawn two wires and is passed with fire control system from the jet fire jetting hole of top cover and link to each other, and the wire of drawing inner at ignition powder, ignition module arranges low-pass filter.
2. a kind of preposition jet initiation tool with lower pass-filter function as claimed in claim 1, it is characterized in that: the gross area in hole accounts for the 1/22-1/18 of metal shell and top cover surface area, and the aperture is 4～7mm.
3. a kind of preposition jet initiation tool with lower pass-filter function as claimed in claim 1, it is characterized in that: the circumferential fire jetting hole of metal shell sidewall evenly distributes, jet fire jetting hole on the top cover therefrom distributes around the mind-set, and therefrom successively decreases around the mind-set in the aperture of jet fire jetting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220559379 CN202832855U (en) | 2012-10-24 | 2012-10-24 | Preposition jet flow igniter with function of low-pass filtering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220559379 CN202832855U (en) | 2012-10-24 | 2012-10-24 | Preposition jet flow igniter with function of low-pass filtering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832855U true CN202832855U (en) | 2013-03-27 |
Family
ID=47944584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220559379 Expired - Fee Related CN202832855U (en) | 2012-10-24 | 2012-10-24 | Preposition jet flow igniter with function of low-pass filtering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913341A (en) * | 2012-10-24 | 2013-02-06 | 晋西工业集团有限责任公司 | Front jet igniter with low-pass filtering function |
-
2012
- 2012-10-24 CN CN 201220559379 patent/CN202832855U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913341A (en) * | 2012-10-24 | 2013-02-06 | 晋西工业集团有限责任公司 | Front jet igniter with low-pass filtering function |
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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 |
Granted publication date: 20130327 Termination date: 20151024 |
|
| EXPY | Termination of patent right or utility model |