CA2495495C - Extrusion de propergol au moyen de d'aiguilles creuses comportant des perforations - Google Patents

Extrusion de propergol au moyen de d'aiguilles creuses comportant des perforations Download PDF

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Publication number
CA2495495C
CA2495495C CA002495495A CA2495495A CA2495495C CA 2495495 C CA2495495 C CA 2495495C CA 002495495 A CA002495495 A CA 002495495A CA 2495495 A CA2495495 A CA 2495495A CA 2495495 C CA2495495 C CA 2495495C
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CA
Canada
Prior art keywords
propellant
extruded
perforations
stick
length
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.)
Active
Application number
CA002495495A
Other languages
English (en)
Other versions
CA2495495A1 (fr
Inventor
William J. Worrell, Jr.
Marlon D. Harris
Leslie P. Gabrysch
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.)
Northrop Grumman Systems Corp
Original Assignee
Alliant Techsystems Inc
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 Alliant Techsystems Inc filed Critical Alliant Techsystems Inc
Publication of CA2495495A1 publication Critical patent/CA2495495A1/fr
Application granted granted Critical
Publication of CA2495495C publication Critical patent/CA2495495C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • 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
    • F02K9/10—Shape or structure of solid propellant charges
    • F02K9/18—Shape or structure of solid propellant charges of the internal-burning type having a star or like shaped internal cavity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/70—Shape

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

Un grain de poudre de type bâton extrudé est décrit qui comprend une longueur séparée d'un brin de matériau de poudre extrudé ayant une forme en coupe transversale prédéterminée comportant un nombre prédéterminé de perforations longitudinales non arrondies, creuses, radialement distribuées, espacées, formées dans ladite longueur de matériau de poudre parallèle à la longueur de celles-ci et s'étendant le long de la longueur de celles-ci et séparées et entourées par une bande du matériau de poudre. Les perforations ont une section transversale géométrique sélectionnée dans le groupe constitué par des formes non arrondies qui améliorent l'uniformité dans une épaisseur de bande non brûlée durant une combustion normale de ladite longueur de poudre extrudée, permettant ainsi de réduire la quantité de copeaux non brûlés. Une perforation centrale est également prévue.
CA002495495A 2004-03-03 2005-01-31 Extrusion de propergol au moyen de d'aiguilles creuses comportant des perforations Active CA2495495C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/792,431 2004-03-03
US10/792,431 US20050193915A1 (en) 2004-03-03 2004-03-03 Propellant extrusion using shaped perforation pins

Publications (2)

Publication Number Publication Date
CA2495495A1 CA2495495A1 (fr) 2005-05-08
CA2495495C true CA2495495C (fr) 2006-09-12

Family

ID=34574864

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002495495A Active CA2495495C (fr) 2004-03-03 2005-01-31 Extrusion de propergol au moyen de d'aiguilles creuses comportant des perforations

Country Status (2)

Country Link
US (1) US20050193915A1 (fr)
CA (1) CA2495495C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3014185B1 (fr) * 2013-12-04 2016-10-28 Herakles Chargement pyrotechnique et generateur de gaz comprenant un tel chargement
US9395164B1 (en) 2014-08-29 2016-07-19 Orbital Atk, Inc. Methods of preparing nitrocelluse based propellants and propellants made therefrom
US10066911B1 (en) 2014-08-29 2018-09-04 Orbital Atk, Inc. Methods of preparing nitrocelluse based propellants and propellants made therefrom

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US751385A (en) * 1904-02-02 Cleland davis
US622777A (en) * 1899-04-11 Powder-grain
US353681A (en) * 1886-12-07 Die for forming conduits or pipes
US694295A (en) * 1899-08-24 1902-02-25 Hudson Maxim Cartridge.
US677528A (en) * 1899-08-24 1901-07-02 Hudson Maxim Cartridge.
US1077320A (en) * 1913-02-20 1913-11-04 James L Walsh Powder-grain.
US3022735A (en) * 1957-10-10 1962-02-27 Phillips Petroleum Co Solid rocket propellants
US3054353A (en) * 1958-09-23 1962-09-18 Norman L Rumpp Segment grain
US3066481A (en) * 1958-11-03 1962-12-04 Phillips Petroleum Co Propellant expansion joint
US3494286A (en) * 1968-04-17 1970-02-10 Us Air Force Hybrid fuel grain sliver reduction
NO113574C (no) * 1975-05-10 1985-08-14 Dynamit Nobel Ag En- eller flerbasiske kruttlegemer for drivladninger og fremgangsmaate til deres fremstilling
US5119627A (en) * 1989-11-03 1992-06-09 American Rocket Company Embedded pressurization system for hybrid rocket motor
FR2679992B1 (fr) * 1991-08-01 1993-09-24 Poudres & Explosifs Ste Nale Brins de poudre propulsive multiperfores et divises, appareillage de fabrication et son utilisation.
US5620205A (en) * 1994-03-14 1997-04-15 Morton International, Inc. Gas generation and ignition system for airbag inflation
US5623115A (en) * 1995-05-30 1997-04-22 Morton International, Inc. Inflator for a vehicle airbag system and a pyrogen igniter used therein
FR2761982B1 (fr) * 1997-04-11 1999-05-07 Livbag Snc Procede pour assurer un deploiement progressif d'un coussin de protection et chargement pyrotechnique pour sa mise en oeuvre
NO20005773A (no) * 2000-11-14 2002-04-15 Nammo Raufoss As Pyroteknisk ladningsstruktur

Also Published As

Publication number Publication date
US20050193915A1 (en) 2005-09-08
CA2495495A1 (fr) 2005-05-08

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