FR2296834A1 - Double-charge pyrotechnic device - has safety device actuated from outside shutting off passage from priming charge - Google Patents

Double-charge pyrotechnic device - has safety device actuated from outside shutting off passage from priming charge

Info

Publication number
FR2296834A1
FR2296834A1 FR7443479A FR7443479A FR2296834A1 FR 2296834 A1 FR2296834 A1 FR 2296834A1 FR 7443479 A FR7443479 A FR 7443479A FR 7443479 A FR7443479 A FR 7443479A FR 2296834 A1 FR2296834 A1 FR 2296834A1
Authority
FR
France
Prior art keywords
charge
passage
outside
priming
shutting
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.)
Granted
Application number
FR7443479A
Other languages
French (fr)
Other versions
FR2296834B1 (en
Inventor
Christian Desormeaux
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.)
Societe Nationale des Poudres et Explosifs
Original Assignee
Societe Nationale des Poudres et Explosifs
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 Societe Nationale des Poudres et Explosifs filed Critical Societe Nationale des Poudres et Explosifs
Priority to FR7443479A priority Critical patent/FR2296834A1/en
Publication of FR2296834A1 publication Critical patent/FR2296834A1/en
Application granted granted Critical
Publication of FR2296834B1 publication Critical patent/FR2296834B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/34—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
    • F02K9/95—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by starting or ignition means or arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

The double-charge pyrotechnic device is particularly for igniting solid blocks of propergol, having a priming charge with igniter and a separate main charge joined to the first by a flame passage. A sequential safety device (14) is inserted between the priming charge (16) and the main one (17) in the flame passage, being actuated from the outside so as to shut off the flame passage or open it up. The safety device can comprise a cap destructible by gas temperature and pressure between the priming and main charges and shutting off the passage, and a control rod slid or rotated from outside so as to bear against the downstream side of the cap in the safe position and also shut the passage off.
FR7443479A 1974-12-31 1974-12-31 Double-charge pyrotechnic device - has safety device actuated from outside shutting off passage from priming charge Granted FR2296834A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7443479A FR2296834A1 (en) 1974-12-31 1974-12-31 Double-charge pyrotechnic device - has safety device actuated from outside shutting off passage from priming charge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7443479A FR2296834A1 (en) 1974-12-31 1974-12-31 Double-charge pyrotechnic device - has safety device actuated from outside shutting off passage from priming charge

Publications (2)

Publication Number Publication Date
FR2296834A1 true FR2296834A1 (en) 1976-07-30
FR2296834B1 FR2296834B1 (en) 1978-12-22

Family

ID=9146847

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7443479A Granted FR2296834A1 (en) 1974-12-31 1974-12-31 Double-charge pyrotechnic device - has safety device actuated from outside shutting off passage from priming charge

Country Status (1)

Country Link
FR (1) FR2296834A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2433168A1 (en) * 1978-08-09 1980-03-07 Gen Dynamics Corp APPARATUS FOR SEALING AN END OF A TUBE FOR LAUNCHING EXHAUST GAS-PROPOSED PROJECTILES
DE3823628A1 (en) * 1988-07-13 1990-01-18 Messerschmitt Boelkow Blohm Detonating device for the propellant charge of a firing device
EP0463974A1 (en) * 1990-06-28 1992-01-02 ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement Safety and arming-means in an ammunition
FR2733314A1 (en) * 1995-04-20 1996-10-25 Aerospatiale Gas generator e.g. thruster for space applications
RU2500913C1 (en) * 2012-05-23 2013-12-10 Открытое акционерное общество "Корпорация "Московский институт теплотехники" (ОАО "Корпорация "МИТ") Device to ignite charge of solid-propellant rocket engine
CN110778418A (en) * 2019-09-27 2020-02-11 上海新力动力设备研究所 Fixed protective cover of electric ignition head

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568697A (en) * 1969-03-25 1971-03-09 Us Army Antipropulsion device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568697A (en) * 1969-03-25 1971-03-09 Us Army Antipropulsion device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2433168A1 (en) * 1978-08-09 1980-03-07 Gen Dynamics Corp APPARATUS FOR SEALING AN END OF A TUBE FOR LAUNCHING EXHAUST GAS-PROPOSED PROJECTILES
DE3823628A1 (en) * 1988-07-13 1990-01-18 Messerschmitt Boelkow Blohm Detonating device for the propellant charge of a firing device
EP0463974A1 (en) * 1990-06-28 1992-01-02 ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement Safety and arming-means in an ammunition
FR2664040A1 (en) * 1990-06-28 1992-01-03 France Etat Armement DEVICE FOR SECURING AND ARMING MILITARY LOADS.
FR2733314A1 (en) * 1995-04-20 1996-10-25 Aerospatiale Gas generator e.g. thruster for space applications
US5827993A (en) * 1995-04-20 1998-10-27 Societe Nationale Industrielle Et Aerospatiale Pyrotechnic ignition device for a gas generator
RU2500913C1 (en) * 2012-05-23 2013-12-10 Открытое акционерное общество "Корпорация "Московский институт теплотехники" (ОАО "Корпорация "МИТ") Device to ignite charge of solid-propellant rocket engine
CN110778418A (en) * 2019-09-27 2020-02-11 上海新力动力设备研究所 Fixed protective cover of electric ignition head
CN110778418B (en) * 2019-09-27 2021-12-07 上海新力动力设备研究所 Fixed protective cover of electric ignition head

Also Published As

Publication number Publication date
FR2296834B1 (en) 1978-12-22

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Legal Events

Date Code Title Description
ST Notification of lapse