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1. WO1996004474 - SLOTTED HYBRID PRESSURE VESSEL

Publication Number WO/1996/004474
Publication Date 15.02.1996
International Application No. PCT/US1995/009251
International Filing Date 21.07.1995
Chapter 2 Demand Filed 09.02.1996
IPC
F02K 9/34 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
9Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
08using solid propellants
32Constructional parts; Details
34Casings; Combustion chambers; Liners thereof
F02K 9/38 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
9Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
08using solid propellants
32Constructional parts; Details
38Safety devices, e.g. to prevent accidental ignition
F42B 39/20 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
42AMMUNITION; BLASTING
BEXPLOSIVE CHARGES, e.g. FOR BLASTING; FIREWORKS; AMMUNITION
39Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts; Cartridge bags
20Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable
CPC
F02K 9/34
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
9Rocket- engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
08using solid propellants
32Constructional parts; Details
34Casings; Combustion chambers; Liners thereof
F02K 9/38
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
9Rocket- engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
08using solid propellants
32Constructional parts; Details
38Safety devices, e.g. to prevent accidental ignition
F42B 39/20
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
42AMMUNITION; BLASTING
BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
39Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
20Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable ; Blow-out panels; Venting arrangements
Applicants
  • THIOKOL CORPORATION [US/US]; 2475 Washington Boulevard Ogden, UT 84401, US
Inventors
  • WARNER, Mark, J.; US
  • BERNDT, Wayne, E.; US
  • THOMPSON, O., N.; US
  • LAURITZEN, Scott, W.; US
  • DAVIS, Kevin, W.; US
Agents
  • MADSON, Craig, J. ; Madson & Metcalf Suite 950 170 South Main Street Salt Lake City, UT 84101, US
Priority Data
08/282,99029.07.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SLOTTED HYBRID PRESSURE VESSEL
(FR) CONTENEUR DE GAZ COMPRIME HYBRIDE, A FENTES
Abstract
(EN)
A pressure vessel and process for manufacturing the pressure vessel. In one embodiment, the invention includes a case (10) for a rocket motor which includes a cylindrical, metal shell (12) which has been configured with a plurality of slots (20) positioned in axially extending rows. A fiber reinforced plastic layer (14) is attached to the metal shell. Each slot has a length (L) and is separated by adjacent slots in the same row by an axial distance (A) with adjacent rows of slots separated by a circumferential distance (C) and configured such that L + A $m(G) 6C and L $m(G) 4A. The method of the invention comprises using a carbon dioxide laser to cut a keyhole in the shell and then cutting axially outwardly from the keyhole to form the slot, resulting in slots having a width equal to the cutting width of the laser. The beam is then defocused and used to heat a portion of the metal shell surrounding the ends of each slot to produce a tempered zone.
(FR)
L'invention se rapporte à un conteneur de gaz comprimé et à son procédé de fabrication. Dans un mode de réalisation, l'invention comprend une enceinte (10) d'un moteur-fusée dont l'enveloppe métallique cylindrique (12) a été configurée par une pluralité de fentes (20) positionnées en rangées s'étendant axialement. Une couche en plastique (14) renforcée de fibres est fixée sur l'enveloppe métallique. Chaque fente a une longueur (L) et est séparée par des fentes adjacentes de la même rangée d'une distance axiale (A,) des rangées adjacentes de fentes étant séparées d'une distance circonférentielle (C), et configurées de sorte que L + A $m(G) 6C et L $m(G) 4A. Le procédé de l'invention consiste à utiliser un laser à dioxyde de carbone pour découper un trou de serrure dans l'enveloppe, puis à effectuer une découpe axialement vers l'extérieur à partir du trou de serrure pour former la fente, ce qui donne des fentes dont la largeur est égale à la largeur de découpe du laser. Le faisceau est ensuite défocalisé et utilisé pour chauffer une partie de l'enveloppe métallique entourant les extrémités de chaque fente pour former une zone tempérée.
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