F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 31/64 (2006.01) F16K 17/38 (2006.01) F16K 31/70 (2006.01) G05D 23/02 (2006.01)
Patent
CA 2175790
A shape memory effect actuated diaphragmatic antiscald valve, including a valve housing (10) having a fluid flow path therethrough and including a pilot chamber. There is a first valve seat (23) within the housing and a second valve seat (13) within the housing and downstream from the first valve seat. A pilot valve is located within the chamber of the valve housing for preventing fluid flow through the chamber in which the pilot valve element is located and a first valve element (42) is retained seated in the first valve by the pilot valve. There are means (36) including an SME element for controlling the open and closed positions of the pilot valve depending upon the temperature of the fluid flowing through the SME valve.
L'invention concerne une valve à diaphragme pour éviter de s'ébouillanter commandée par un dispositif à effet de mémoire, comportant un logement (10) de valve que traverse un flux de fluide et une chambre pilote. Il y a un premier siège (23) de valve dans le logement et un second siège (13) de valve dans le logement en aval du premier siège de valve. Une valve pilote se trouve dans la chambre du logement de la valve pour empêcher le fluide de circuler dans la chambre dans laquelle se trouve l'élément de valve pilote et un premier élément de valve (42) est retenu en place dans la première valve par la valve pilote. Des moyens (36) sont prévus comprenant un dispositif à effet de mémoire pour ajuster les positions ouverte et fermée de la valve pilote, en fonction de la température du fluide circulant dans la valve à effet de mémoire.
Ewing William A.
Martin Richard L.
Memry Corp.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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