F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 11/07 (2006.01)
Patent
CA 2581925
The invention concerns a valve wherein the valve spool (1) provides selective communications between inner zones (3 5) in the valve body (C) and is mobile between extreme left and right positions under the control of an electric servomotor whereof the spindle (10), connected to the valve spool through a connecting rod assembly (11, 14) whereof the connecting rod (11) is configured to have an abutting ridge (15) co-operating with the spindle (10) in an extreme position (13<SB>III</SB>) countering the action of the return spring (6) thus allowing a mono- and/or bistable operation of the valve. The invention is applicable to onboard systems for supplying breathing mixture to an aircraft occupant.
Le tiroir de valve (1) établissant des communications sélectives entre les zones internes (3 - 5) dans le corps de valve (C) et mobile entre des positions extrême gauche et droite sous la commande d'un servo-moteur électrique dont l'axe (10), relié au tiroir de valve par un embiellage (11, 14) dont la biellette (11) est conformée pour présenter une arête de butée (15) coopérant avec l'axe (10) dans une position extrême (13III) s'opposant à l'action du ressort de rappel (6) et permettant ainsi à la valve de fonctionner en mono et/ou bistable. Application aux systèmes embarqués de fourniture de gaz respiratoire à un occupant d'un aéronef.
Arnault Jean
Cazenave Jean-Michel
L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Proced Es Geo
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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