Patent ID: 6279872
Filing Date: 2001-08-28
Classification: F02K,F16K

Abstract:
A quick-acting valve comprising a chamber (11) having an inlet opening (12 or 25) and an outlet opening (13) and containing a movable valve seat (17) capable of being closed by a movable unrestrained valve body (19), the unrestrained valve body (19) being configured to be pressed into a closed position against the valve seat (17) by a fluid introduced into the chamber (11) through the inlet opening (12), said movable valve seat (17) being housed in said chamber (11) for movement relative to an actuator (15) which moves the movable valve seat (17) in response to an actuating signal, the actuator (15) moves the movable valve seat (17) away from the unrestrained valve body (19) in the closed position to effect opening therebetween and at a speed so rapid as to prevent the unrestrained valve body (19) from following said movable valve seat (17).