F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 17/10 (2006.01) F16K 1/54 (2006.01) F16K 17/164 (2006.01) F16K 31/72 (2006.01)
Patent
CA 2640290
A valve means has a valve housing (12), in which an inlet duct (15) for pressure fluid extends, said duct opening into a valve chamber (17), in which a valve member (18) is held by spring means (19) in a closed position (20) engaging a valve seat (21), the valve member (18) opening at a predetermined opening pressure of the pressure fluid present so that pressure fluid arrives by way of an opening cross section at a fluid outlet (33) and flows from it, and the valve means comprises a control duct by way of which pressure fluid flows into a control chamber (37), in which a control member (38) is held clear of a control seat (41) by spring means in an open position (40), the control chamber (37) being connected by way of a connecting duct (50) with the valve chamber (37) and in which the control member (38) so controls the exit flow of the pressure fluid that the control member (38) is able to be shifted, prior to opening of the valve member (18) at a control pressure below the opening pressure into engagement with its control seat (41) so that the passage of fluid between the control chamber (37) and the valve chamber (17) is shut off and that in the open position (53) of the valve member (18) and during exit flow of the pressure fluid via the control chamber (17) the control member (38), with a fall in pressure below the control pressure, shifts into its open position (40) and the connection duct (50) is opened with the result that pressure fluid can leave via the control chamber (37).
Danner Tobias
Ilmberger Steffen
Quendt Volker
Festo Ag & Co. Kg
Fetherstonhaugh & Co.
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