Fluid flow control valve

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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Details

F16K 35/06 (2006.01) B60R 25/04 (2006.01)

Patent

CA 2224657

A fluid flow control valve suitable for fitting to the fuel line (16, 18) of an internal combustion engine has a valve member (12) and a spring (14) urging the valve member (12) to a closed position where the valve member seals against a valve seat (13). A key-actuated setting mechanism (20, 21) allows the valve member (12) to be moved away from its closed position to an open position and a latch (31, 32) then holds the valve member in that open position. An electrically operated release (33) moves the latch (31) to free the valve member and permits the valve to close under the action of the spring (14). When fitted to a vehicle, energy may be provided to the release (33) automatically whenever the vehicle is left unattended so as to immobilise the vehicle.

La présente invention se rapporte à une soupape de commande de flux de fluide pouvant être monté sur un conduit (16, 18) de carburant d'un moteur à combustion interne, comportant un élément de soupape (12) et un ressort (14) poussant l'élément de soupape (12) dans une position fermée de telle sorte que l'élément de soupape vienne s'appuyer hermétiquement contre le siège (13) de soupape. Un mécanisme (20, 21) de réglage fonctionnant avec une clé permet à l'élément de soupape (12) d'atteindre une position ouverte et un loquet (31, 32) maintient alors l'élément de soupape dans cette position ouverte. Un élément de libération (33) fonctionnant électriquement déplace le loquet (31) pour libérer l'élément de soupape et lui permettre de se fermer sous l'action du ressort (14). Lorsque le dispositif est installé dans un véhicule, l'énergie peut être transmise à l'élément de libération (33) automatiquement chaque fois que le véhicule est laissé seul afin d'immobiliser ledit véhicule.

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