VALVE FOR A CRYOGENIC FLUID

A valve for a cryogenic fluid and a supply circuit for a cryogenic fluid, the valve comprising: a control chamber (11); a first flow chamber (12) that communicates with the control chamber (11) via a control orifice (14); a second flow chamber (13) that communicates with the first flow chamber (12)...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FAYE, Olivier, NOMERANGE, Philippe
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACTUATING-FLOATS AIRCRAFT ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT AVIATION BLASTING COCKS COMBUSTION ENGINES COSMONAUTICS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS EQUIPMENT FOR FITTING IN OR TO AIRCRAFT FLYING SUITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING PARACHUTES PERFORMING OPERATIONS SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TAPS THERMAL INSULATION IN GENERAL TRANSPORTING VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A valve for a cryogenic fluid and a supply circuit for a cryogenic fluid, the valve comprising: a control chamber (11); a first flow chamber (12) that communicates with the control chamber (11) via a control orifice (14); a second flow chamber (13) that communicates with the first flow chamber (12) via a flow orifice (15) that forms a valve seat; a linear-stroke actuator (20) that is accommodated in the control chamber (11) and configured to actuate a control rod (24) which penetrates the control orifice (14) and extends axially into the first flow chamber (12); a valve gate (25) that is movable between a closed position and an open position; and bellows (30) that surround the control rod (24) and are sealed while being axially stretchable. Vanne pour fluide cryotechnique ainsi qu'un circuit d'alimentation pour fluide cryotechnique, la vanne comprenant une chambre de commande (11), une première chambre de circulation (12), communiquant avec la chambre de commande (11) par l'intermédiaire d'un orifice de commande (14), une deuxième chambre de circulation (13), communiquant avec la première chambre de circulation (12) par l'intermédiaire d'un orifice de circulation (15), formant un siège de vanne, un actionneur à course linéaire (20), logé dans la chambre de commande (11) et configuré pour actionner une tige de commande (24) traversant l'orifice de commande (14) et s'étendant axialement dans la première chambre de circulation (12), un obturateur (25), mobile entre une position de fermeture et un position d'ouverture, et un soufflet (30), étanche tout en étant étirable axialement, entourant la tige de commande (24).