JPS5813145A - Igniter for rocket motor - Google Patents

Igniter for rocket motor

Info

Publication number
JPS5813145A
JPS5813145A JP11043581A JP11043581A JPS5813145A JP S5813145 A JPS5813145 A JP S5813145A JP 11043581 A JP11043581 A JP 11043581A JP 11043581 A JP11043581 A JP 11043581A JP S5813145 A JPS5813145 A JP S5813145A
Authority
JP
Japan
Prior art keywords
igniter
support
case
legs
semi
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.)
Pending
Application number
JP11043581A
Other languages
Japanese (ja)
Inventor
Hiroyuki Kawazu
河津　広行
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP11043581A priority Critical patent/JPS5813145A/en
Publication of JPS5813145A publication Critical patent/JPS5813145A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/0815—Intermediate ignition capsules, i.e. self-contained primary pyrotechnic module transmitting the initial firing signal to the secondary explosive, e.g. using electric, radio frequency, optical or percussion signals to the secondary explosive

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)

Abstract

PURPOSE:To prevent transfer damage caused by unit fire by fixing a support forming a plurality of legs inside a semi-sphere case provided with a number of nozzles at the tip of a cylinder and by installing a pellet-shaped main gunpowder charging unit. CONSTITUTION:A support 21 inserted from the base end opening of an igniter 3 into a case 3 is connected to an igniter case 3 at a location where a cylindrical section 4 changes into a semi-sphere to an igniter case 3 at a location where a cylindrical section 4 changes into a semi-sphere section 6, and is connected to an igniter case 3. The support 21 consists of three legs 23 equally spaced and spider-shaped, extending from the core section 22 at the center in radial directions. Therefore, a large space is produced between the legs 23 and the flame of the main gunpowder charge can easily pass without interruption. The tip of a supporting rod 14 for the main gunpowder charge unit 18 is inserted into the core section 23 and fixed there. As the support 21 is not thin-linear shaped, the support 21 is not melted by the flame, which prevents nozzles 5 from being clogged.

Description

【発明の詳細な説明】 この発明はロケットモータ用イグナイタに関する。[Detailed description of the invention] The present invention relates to an igniter for a rocket motor.

従来のロケットモータ用イグナイタとしては、第１．２
図に示すようなものが知られている。同図において、（
１）はイグナイタであり、このイグナイタ（１）は本体
（２）を有する。本体（２）にはイグナイタケース（３
）が固定され、このイグナイタケース（３）は、円筒部
（４）と多数のノズル（５）が形成された半球殻部（６
）からなる。円筒部（４）の基端外周にはねじ部（力が
形成され、このねじ部（７）がロケットモータのモータ
ケース（図示していない）にねじ込まれることによシ、
イグナイタ（１）はモーターケースに固定される。（８
）はイグナイタケース（３）の基端側内部に配置された
スクイブホルダであり、このスクイブホルダ（８）には
スクイブ室（９）およびスクイブ室（９）に連通する起
装薬室Ｑｌ）が形成されている。スクイブ室（９）およ
び起装薬室ａ〔にはスクイブＱＤおよび起装薬Ｑ２１が
それぞれ装填されている。イグナイタケース（３）の先
端側内部にはアルミ製のワイヤａ３が押し込まれている
。（１４１ＦｉＦＲＰ製の支持ロンドであり、この支持
ロッド（１４１の外周には複数個のベレット状主装薬Ｑ
５１がその外周において接着により取シ付けられ、これ
らの主装薬α９は支持ロッド（１４１に３個が一組とな
って３組取り付けられている。これら主装薬Ｑ５１およ
び支持ロッドＩは主装薬ユニッ）Ｑｌｌを構成する。該
主装薬ユニットａ８１はスクイブホルダ（８）およびワ
イヤＱ３１に挾持されてイグナイタケース（３）内に収
納されている。また、主装薬ユニツ）Ｑ８１はポリエチ
レンからなる袋（１６１で覆われ、この袋ＱＧの開口端
はスクイブホルダ（８）に木綿糸ａηでしばり付けられ
ている。As a conventional rocket motor igniter, No. 1.2
The one shown in the figure is known. In the same figure, (
1) is an igniter, and this igniter (1) has a main body (2). The main body (2) has an igniter case (3
) is fixed, and this igniter case (3) has a cylindrical part (4) and a hemispherical shell part (6) in which a number of nozzles (5) are formed.
). A threaded portion (force) is formed on the outer periphery of the proximal end of the cylindrical portion (4), and when this threaded portion (7) is screwed into the motor case (not shown) of the rocket motor,
The igniter (1) is fixed to the motor case. (8
) is a squib holder disposed inside the base end side of the igniter case (3), and this squib holder (8) has a squib chamber (9) and a charging chamber Ql) communicating with the squib chamber (9). It is formed. The squib chamber (9) and the charge chamber a are loaded with a squib QD and a charge Q21, respectively. An aluminum wire a3 is pushed inside the tip side of the igniter case (3). (It is a support rod made of 141FiFRP, and the outer periphery of this support rod (141) has multiple pellet-shaped main charges Q.
51 is attached by adhesive on its outer periphery, and these main charges α9 are attached to the support rod (3 sets of 3 pieces are attached to the support rod 141. These main charges Q51 and support rod I are attached to the main charge Charge unit) Qll is configured. The main charge unit a81 is held in the squib holder (8) and the wire Q31 and housed in the igniter case (3). Further, the main charge unit Q81 is covered with a polyethylene bag (161), and the open end of this bag QG is tied to the squib holder (8) with cotton thread aη.

しかしながら、このような従来のロケットモータ用イグ
ナイタにあっては、主装薬ユニット０８１がワイヤαｌ
によって弾性支持されているため、起装薬（１２＋の作
動により発生した衝撃波を伴う高温高圧の火炎が主装薬
ユニットα稀に作用する。そして瞬間的に主装薬ユニッ
トａ＆がワイヤαｊを押しつぶして移動し衝撃で主装薬
Ｑ５１が支持ロッドＩから外れｆｃシあるいは割れたり
していた。このため、主装薬α９の作動が不安定となっ
たり、圧力が異常に高くなってケース（３）が損傷する
おそれがあるという問題点があった。しかも、主装薬（
１５）の作動に上る火炎がワイヤ０渇に直接当たるため
、ワイヤ（１３１が溶融して一部のノズル（５）を塞ぎ
、ノズル（５）からの出る火炎が不均一となる。このた
め、ロケットモータの推進薬への着火が低下するという
問題点もある。However, in such a conventional rocket motor igniter, the main charge unit 081 is connected to the wire αl.
Because it is elastically supported by the main charge unit α, the high-temperature, high-pressure flame accompanied by a shock wave generated by the operation of the charge (12+) acts on the main charge unit α.Then, the main charge unit a& instantaneously crushes the wire αj. The main charge Q51 was detached from the support rod I due to the shock and was cracked or cracked.As a result, the operation of the main charge α9 became unstable and the pressure became abnormally high, causing the case (3 ) was at risk of being damaged.Furthermore, the main charge (
15) directly hits the wire 0, the wire (131) melts and blocks some nozzles (5), making the flame emitted from the nozzles (5) uneven.For this reason, Another problem is that the ignition of the rocket motor's propellant is reduced.

この発明は上述の問題点に着目してなされ成したサポー
トに取り付けて、このサポートをイグナイタケースに固
定することにより、前記問題点を解決することを目的と
している。It is an object of the present invention to solve the above-mentioned problems by attaching the support to a support made in view of the above-mentioned problems and fixing this support to the igniter case.

以下、この発明を図面に基づいて説明する。The present invention will be explained below based on the drawings.

第３“、４図はこの発明の一実施例を示す図である。ま
ず、構成を説明するが、従来と同一部分る。同図におい
て、（２１＋はイグナイタケース（３）の基端開口から
イ５グナイタケース（３）内に押し込まれたサポートで
あシ、このサポート（２１１は円筒部（４）から半球殻
部（６）にかわる部分において接着によってイグナイタ
・、、ケース（３）に固定されている。3" and 4 are diagrams showing one embodiment of the present invention. First, the configuration will be explained, and the same parts as the conventional one are shown. In the figure, (21+ is from the base end opening of the igniter case (3). This support (211) is fixed to the igniter case (3) by adhesive at the part where the cylindrical part (4) changes to the hemispherical shell part (6). ing.

このサポート圓は中央の芯部＠と、この芯部■から放射
方向に延省し互に等角度離れた複数（この実施例では３
つ）の脚部（ハ）と、からなるスパイダー状をしている
。この結果、脚部（ハ）間は大きな空間となり、主装薬
ａ９の火炎は乱されることなく容易に通過できる。・サ
ポートＱυの中央部、すなわち、芯部＠には主装薬ユニ
ット（２）の前記支持ロッドａ４の先端が挿入固定され
ている。This support circle consists of a central core @ and a plurality of support circles (in this example, 3
It has a spider-like shape, consisting of two legs (1) and (3). As a result, there is a large space between the legs (c), through which the flame of the main charge a9 can easily pass through without being disturbed. - The tip of the support rod a4 of the main charge unit (2) is inserted and fixed into the central portion of the support Qυ, that is, the core @.

なお、最もサポートＱυに近接する組の３つの主装薬Ｑ
５１はそれぞれサポートＣＤの芯部（２３１に当接して
いる。この結果１、主装薬ａ９に起装薬ａ３の火炎が作
用しても、主装薬０５１は移動することはなく、確実に
保持される。なおイグナイタケース（３）の外周には粘
りのある塗料を塗布してノズル（５）をふさぎ、主装薬
ユニット０８を湿気から保護するものとする。また、サ
ボー）（２１１は細い線状ではないため、主装薬Ｑ５１
の火炎によっても溶融することはなく、この結果、ノズ
ル（５）は全く塞がれることはない。In addition, the three main charges Q of the group closest to the support Qυ
51 are in contact with the core part (231) of the support CD, respectively. As a result, even if the flame of the prime charge a3 acts on the main charge a9, the main charge 051 will not move and will reliably The outer periphery of the igniter case (3) should be coated with sticky paint to block the nozzle (5) and protect the main charge unit 08 from moisture. Because it is not a thin line, the main charge Q51
The nozzle (5) is not melted even by the flame, and as a result, the nozzle (5) is not blocked at all.

以上説明したように、この発明によれば、多数のノズル
孔が形成されたケース内に複数の脚部を有するサポート
を固定し、該サポートにペレット状の主装薬を含む主装
薬ユニットを取シ付は九ため、主装薬ユニットが火炎に
よって移動することがなく、主装薬が外れたシ割れたす
することはない。As explained above, according to the present invention, a support having a plurality of legs is fixed in a case in which a large number of nozzle holes are formed, and a main charge unit containing a pellet-shaped main charge is attached to the support. Since the attachment point is nine, the main charge unit will not be moved by the flames, and there will be no chance of the main charge coming off and cracking.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の小型ロケットモータ用イグナイタの一部
破断側面図、第２ｖＪは第１図の■−■矢視断面図、第
３図はこの発明に係る小型ロケットモータ用イグナイタ
の一実施例を示す一部破断側面図、第４図は第３図のＩ
Ｖ−■矢視断面図である。 （１）・・・イグナイタ　　（３）・・・ケース（５）
・・・ノズル　　　　（１５１・・・主装薬Ｑ８・・・
主装薬ユニット　圓・・・サポート特許出願人　　日産
自動車株式会社 代理人　弁理士　　有　我　軍　−部Fig. 1 is a partially cutaway side view of a conventional igniter for a small rocket motor, Fig. 2vJ is a sectional view taken along the ■-■ arrow in Fig. 1, and Fig. 3 is an embodiment of the igniter for a small rocket motor according to the present invention. Fig. 4 is a partially cutaway side view showing I of Fig. 3.
It is a sectional view taken along the V-■ arrow. (1)...Igniter (3)...Case (5)
...Nozzle (151...Main charge Q8...
Main charge unit En...Supporting patent applicant Nissan Motor Co., Ltd. agent Patent attorney Yu Wa Army - Department

Claims (1)

【特許請求の範囲】[Claims] 複数のベレット状主装薬を用いて構成された主装薬ユニ
ットをイグナイタケースに収納した形式のロケットモー
タ用イグナイタにおいて、主装薬ユニットを放射状に脚
部を形成したサポートに取付けてこのサポートをイグナ
イタヶースに固定したことを特徴とするロケットモータ
用イグナイタ。In an igniter for a rocket motor in which a main charge unit composed of a plurality of pellet-shaped main charges is housed in an igniter case, the main charge unit is attached to a support having radial legs. An igniter for a rocket motor characterized by being fixed to an igniter case.
JP11043581A 1981-07-15 1981-07-15 Igniter for rocket motor Pending JPS5813145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11043581A JPS5813145A (en) 1981-07-15 1981-07-15 Igniter for rocket motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11043581A JPS5813145A (en) 1981-07-15 1981-07-15 Igniter for rocket motor

Publications (1)

Publication Number Publication Date
JPS5813145A true JPS5813145A (en) 1983-01-25

Family

ID=14535651

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11043581A Pending JPS5813145A (en) 1981-07-15 1981-07-15 Igniter for rocket motor

Country Status (1)

Country Link
JP (1) JPS5813145A (en)

Similar Documents

Publication Publication Date Title
US4864932A (en) Propellant charge module
KR950702948A (en) Gas generator
US4887534A (en) Ignition system for high intrusion projectile
US3044255A (en) Powder propulsive for rockets or other self-propelled projectiles
CA2074994C (en) Multipurpose projectile and a method of making it
EP0118595B1 (en) Weather seal arrangement for solid rocket motor igniters
US4172420A (en) Propellant charge for recoilless weapons
US4979444A (en) Mine, particularly a land mine
CA2008204A1 (en) Tracer shotgun shell
US5192829A (en) Initiation device for the propulsive charge of ammunition, for example telescoped ammunition, and ammunition ignited by such an ignition device
US6283033B1 (en) Multiple effect pyrotechnic shell
US6213023B1 (en) Base bleed unit
JPS5813145A (en) Igniter for rocket motor
SE461477B (en) DEVICE AT A BASIC FLOW SEAT
WO1995020508A1 (en) Gas generator for air bag
US3667396A (en) Solid propellant grain igniter
US4495866A (en) Flash guide tube arrangement for propellant charge igniters
GB2216240A (en) Hollow charge projectile with extensible distance piece
EP0461095A1 (en) Improvements to primers
AU676095B2 (en) Recoil reducer wad for shotgun ammunition
US2688920A (en) Gas generating cartridge
JPS61282799A (en) Igniter for gas generating charging explosive
US4104969A (en) Arrangement for improving the burning efficiency of a rocket-borne solid propellant charge cartridge
US6474239B2 (en) Igniter tube for artillery ammunition
GB2372090A (en) Projectile with ejectable submunitions