FR2380431A1 - Propulsive charge - incorporates screen between propellant material and bonding to outer envelope, preventing migration of active constituents - Google Patents

Propulsive charge - incorporates screen between propellant material and bonding to outer envelope, preventing migration of active constituents

Info

Publication number
FR2380431A1
FR2380431A1 FR7704207A FR7704207A FR2380431A1 FR 2380431 A1 FR2380431 A1 FR 2380431A1 FR 7704207 A FR7704207 A FR 7704207A FR 7704207 A FR7704207 A FR 7704207A FR 2380431 A1 FR2380431 A1 FR 2380431A1
Authority
FR
France
Prior art keywords
bonding
migration
charge
propellant material
outer envelope
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
FR7704207A
Other languages
French (fr)
Other versions
FR2380431B1 (en
Inventor
Claude Waitzenegger
Jean-Pierre Portrat
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.)
SERAT
Original Assignee
SERAT
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 SERAT filed Critical SERAT
Priority to FR7704207A priority Critical patent/FR2380431A1/en
Publication of FR2380431A1 publication Critical patent/FR2380431A1/en
Application granted granted Critical
Publication of FR2380431B1 publication Critical patent/FR2380431B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • F02K9/08—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants
    • F02K9/32—Constructional parts; Details not otherwise provided for
    • F02K9/34—Casings; Combustion chambers; Liners thereof
    • F02K9/346—Liners, e.g. inhibitors
    • 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
    • F02K9/08—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants
    • F02K9/32—Constructional parts; Details not otherwise provided for
    • F02K9/36—Propellant charge supports

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

A propulsive charge incorporates a thin flexible screen between the blocks of propellant material constituting the charge and the bonding of the charge to the structure of the outer envelope. The bonding consists of plastic enclosures which have important characteristics for the mechanical and chemical stability during storage. The screen is a material which is impervious to the migration of the active constituents of the propellant material, and which can be applied easily to complex geometrical shapes. Problems associated with modifications of the internal structure of the bonding are avoided. Such modification is generally due to the migration of active components of the powder, e.g. nitroglycerine, causing a loss of efficiency. The invention prevents the migration occuring and provides efficient protection against permature ignition.
FR7704207A 1977-02-15 1977-02-15 Propulsive charge - incorporates screen between propellant material and bonding to outer envelope, preventing migration of active constituents Granted FR2380431A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7704207A FR2380431A1 (en) 1977-02-15 1977-02-15 Propulsive charge - incorporates screen between propellant material and bonding to outer envelope, preventing migration of active constituents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7704207A FR2380431A1 (en) 1977-02-15 1977-02-15 Propulsive charge - incorporates screen between propellant material and bonding to outer envelope, preventing migration of active constituents

Publications (2)

Publication Number Publication Date
FR2380431A1 true FR2380431A1 (en) 1978-09-08
FR2380431B1 FR2380431B1 (en) 1983-03-11

Family

ID=9186750

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7704207A Granted FR2380431A1 (en) 1977-02-15 1977-02-15 Propulsive charge - incorporates screen between propellant material and bonding to outer envelope, preventing migration of active constituents

Country Status (1)

Country Link
FR (1) FR2380431A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1281397A (en) * 1960-11-29 1962-01-12 Development of rocket thrusters
BE669049A (en) * 1964-09-01 1965-12-31
FR2022968A1 (en) * 1968-11-09 1970-08-07 Dynamit Nobel Ag
US3673287A (en) * 1968-12-23 1972-06-27 Us Army Method of making cast-in -place end-burning propellant grains
FR2330868A1 (en) * 1975-11-06 1977-06-03 Ca Minister Nat Defence INTERNAL INSULATION FOR ROCKET ENGINES AND ITS POSITIONING

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1281397A (en) * 1960-11-29 1962-01-12 Development of rocket thrusters
BE669049A (en) * 1964-09-01 1965-12-31
FR2022968A1 (en) * 1968-11-09 1970-08-07 Dynamit Nobel Ag
US3673287A (en) * 1968-12-23 1972-06-27 Us Army Method of making cast-in -place end-burning propellant grains
FR2330868A1 (en) * 1975-11-06 1977-06-03 Ca Minister Nat Defence INTERNAL INSULATION FOR ROCKET ENGINES AND ITS POSITIONING

Also Published As

Publication number Publication date
FR2380431B1 (en) 1983-03-11

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Legal Events

Date Code Title Description
ST Notification of lapse