Patent ID: 8939743
Filing Date: 2015-01-27
Classification: B21D,F16K,Y10S,Y10T

Abstract:
1. A device for fluid feed for explosive forming comprising: an ignition element of an explosive forming die, said ignition element including an ignition chamber; a valve having a valve housing and a valve element which is moveable and at least partially disposed in said valve housing and wherein said valve is coupled to said ignition element; and an activating mechanism having an activating housing and an activating element at least partially disposed in said activating housing and extending to a lower end for engaging and activating said valve element, wherein said activating mechanism in an inactivated valve state is provided separately relative to said valve and said activating mechanism including said activating housing and said activating element does not contact said valve, including said valve housing and said valve element and wherein during the activation process, only said activating element of said activating mechanism contacts said valve and wherein said activating mechanism is separately coupled to said ignition element from said valve, such that in said inactivated state said activating mechanism including said activating housing and said activating element does not contact said valve housing; said activating housing extending along a center axis and defining a recess, said activating housing including a fluid connection opening extending from outside of said activating housing to said recess, and said activating housing defining a second opening extending from said recess along said center axis to outside of said activating housing and toward said valve; said activating element being axially movable in said recess between said fluid connection opening and said second opening, said activating element including a sealing device dividing said recess into an upper chamber and a lower chamber, and said activating element being biased toward said fluid connection opening when said device is in said inactivated state; said valve housing defining a valve opening extending along said center axis and continuously from a first end of said valve housing to a second end of said valve housing, said valve opening being in fluid communication with said ignition chamber at said second end of said valve housing, said valve housing including a wall surrounding at least a portion of said center axis and facing toward said valve element; said valve element being disposed in said valve opening and extending longitudinally along said center axis, said valve element including a shoulder facing said wall of said valve housing and being biased into engagement with said wall when said device is in said inactivated state, said valve element and said valve housing defining a pressure chamber therebetween, said pressure chamber being sealed from said ignition chamber when said device is in said inactivated state, and said pressure chamber being in fluid communication with said ignition chamber when said device is in an activated state.