Patent ID: 6779558
Filing Date: 2004-08-24
Classification: G05D,Y10T

Abstract:
A pressure control valve, comprising:a valve housing having a pump connection, an appliance connection and a tank connection; a valve piston movably mounted in said valve housing between a first position connecting said pump connection and said appliance connection in fluid communication and a second position connecting said tank connection with said appliance connection in fluid communication; a magneto inductor located in said housing and coupled to said valve piston to control movement and positioning thereof; and a hydraulic dampening device mounted in said housing having a dampening space in fluid communication with said appliance connection through a throttle, said throttle including a ring disk with a throttle point impeding fluid flow between said dampening space and said appliance connection and including an annular passage between said ring disk and adjacent parts of said valve housing surrounding said ring disk, said ring disk having hinge connecting points for connection to said valve housing, said annular passage being interrupted by said hinge connecting points and by application of a front of the ring disk to an interior of said valve housing.