FR2146649A6 - Solid-fuel rocket primer - comprising silicone elastomer body for use at very low temps - Google Patents

Solid-fuel rocket primer - comprising silicone elastomer body for use at very low temps

Info

Publication number
FR2146649A6
FR2146649A6 FR7126792A FR7126792A FR2146649A6 FR 2146649 A6 FR2146649 A6 FR 2146649A6 FR 7126792 A FR7126792 A FR 7126792A FR 7126792 A FR7126792 A FR 7126792A FR 2146649 A6 FR2146649 A6 FR 2146649A6
Authority
FR
France
Prior art keywords
primer
dia
solid
silicone elastomer
cavities
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.)
Expired
Application number
FR7126792A
Other languages
French (fr)
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.)
Etat Francais
Original Assignee
Etat Francais
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 Etat Francais filed Critical Etat Francais
Priority to FR7126792A priority Critical patent/FR2146649A6/en
Application granted granted Critical
Publication of FR2146649A6 publication Critical patent/FR2146649A6/en
Expired 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
    • F42C19/0823—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition
    • F42C19/0826—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition comprising an elongated perforated tube, i.e. flame tube, for the transmission of the initial energy to the propellant charge, e.g. used for artillery shells and kinetic energy penetrators
    • 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
    • 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
    • F42C19/0819—Primers or igniters for the initiation of rocket motors, i.e. pyrotechnical aspects thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A primer for solid-fuel rockets, which does not malfunction at temps. as low as -40 degrees C, comprises a flexible silicone elastomer cylinder having an axial bore for the primary charge, >=1 ring of cylindrical cavities disposed regularly round the bore with radial perforations connecting these cavities to the exterior of the flexible cylinder. The primary charge is cannon-type black powder contained in a perforated sheath having a plastics envelope, detonated by a electric igniter via a pyrotechnic system, or by a wholly pyrotechnic system. The primary charge consists of aluminothermic pellets disposed uniformly in the cavities. Specif. the cavity dia. is about the same as that of the pellets, which is 0.1-30 mm, and the cavity dia. is pref. 0.1-0.4 times the primer dia. The silicone may be filled with Ca oxalate.
FR7126792A 1968-04-10 1971-07-22 Solid-fuel rocket primer - comprising silicone elastomer body for use at very low temps Expired FR2146649A6 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7126792A FR2146649A6 (en) 1968-04-10 1971-07-22 Solid-fuel rocket primer - comprising silicone elastomer body for use at very low temps

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR147595 1968-04-10
FR7126792A FR2146649A6 (en) 1968-04-10 1971-07-22 Solid-fuel rocket primer - comprising silicone elastomer body for use at very low temps

Publications (1)

Publication Number Publication Date
FR2146649A6 true FR2146649A6 (en) 1973-03-02

Family

ID=26181938

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7126792A Expired FR2146649A6 (en) 1968-04-10 1971-07-22 Solid-fuel rocket primer - comprising silicone elastomer body for use at very low temps

Country Status (1)

Country Link
FR (1) FR2146649A6 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2325900A1 (en) * 1975-09-27 1977-04-22 Rheinmetall Gmbh PRIMING CHAIN
EP0580017A1 (en) * 1992-07-18 1994-01-26 DIEHL GMBH & CO. Igniter for propulsive charges

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2325900A1 (en) * 1975-09-27 1977-04-22 Rheinmetall Gmbh PRIMING CHAIN
EP0580017A1 (en) * 1992-07-18 1994-01-26 DIEHL GMBH & CO. Igniter for propulsive charges

Similar Documents

Publication Publication Date Title
GB1228309A (en)
ES450215A1 (en) Attitude-controlling system and a missile equipped with such a system
GB1382888A (en) Tubular cartraidge a launching tube loaded with a cartridge and a method of launching a missile using the loaded launching tube
GB1162158A (en) Improvements in Caseless Ammunition
GB1348320A (en) Wads for cartridges
GB1081747A (en) Tracer shotgun cartridge
GB1169079A (en) Practice Ammunition
ES427646A1 (en) Projectile launching device
GB1177551A (en) Improvements in or relating to Small Arms Ammunition.
GB1369420A (en) Projectiles
GB1376833A (en) Loading underwater cavities with fluent explosive material
FR2146649A6 (en) Solid-fuel rocket primer - comprising silicone elastomer body for use at very low temps
ES326676A1 (en) A propulsor cartridge device for appliances that works through the force of the polvora. (Machine-translation by Google Translate, not legally binding)
US3645206A (en) Ammunition cartridge
GB873192A (en) Improvements in propellant explosive cartridges
ES2002604A4 (en) A GRANADA OF A SPEARGUN.
ES449468A1 (en) Assembly for launching a projectile
FR2385075A1 (en) Charge scattering rocket propulsion system - has igniter charge to actuate excess of propulsive charge to destroy remaining parts
GB1142716A (en) Shells for explosive projectiles
US3688698A (en) Ammunition round
US3504629A (en) Primer for use with caseless ammunition
GB1361245A (en) Finstabilised projectiles
US3807309A (en) Ballistic primer
GB1221203A (en) Improvements in cartridges
GB1427005A (en) Shotgun cartridges and shot concentrators therefor

Legal Events

Date Code Title Description
TP Transmission of property