Patent ID: 7331563
Filing Date: 2008-02-19
Classification: F16K

Abstract:
1. Valve, comprising: a base body with a passage opening; a movable valve member for closing and opening the passage opening; and an actuating mechanism, by means of which the valve member can be moved in order to open up the passage opening, the actuating mechanism having at least two elements in wire form made from a shape memory alloy, which elements are secured to the base body or a carrier body connected to the base body and can be shortened in the event of the temperature rising to a temperature above a threshold temperature; wherein the elements in wire form can be shortened alternately and are operatively connected to the valve member in such a way that the valve member can be moved from a stable position on the passage opening into a stable position close to the passage opening in the event of one element being shortened on one side, and can be moved back into the stable position on the passage opening in the event of the other element being shortened on one side; the two elements in wire form run approximately parallel to one another and perpendicular to a direction of movement of the valve member.