Regulating valve
AssigneeGeze GmbH
InventorIngo Walter
Life of this patent
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Abstract
A regulating valve for activating a strike function of a hydraulic door, gate, or window drive, in particular a hydraulic door closer, which is arranged in a hydraulic channel via which hydraulic fluid can flow, comprises a valve member which is axially displaceable in a valve bore between a closed position and an open position, is acted on in an opening direction by a spring unit, is acted on by the pressure in a pressure chamber in the closing direction and can be transferred into the open position thereof by the spring force of the spring unit when there is a drop in pressure in the pressure chamber below a predeterminable limit pressure.
Claims14
A regulating valve (10) for activating a strike function of a hydraulic door, gate or window drive, wherein the regulating valve (10) is arranged in a hydraulic channel via which hydraulic fluid flows to effect the strike function, and a valve member (16) which is axially displaceable between a closed position and an open position in a valve bore (12), is acted on by a spring unit (14) in an opening direction, is acted on by a pressure in a pressure chamber (18) in a closing direction and is transferred into the open position thereof by a spring force of the spring unit (14) when there is a drop in the pressure in the pressure chamber (18) below a predetermined limit pressure, wherein the valve member (16) is provided on a pressure piece (20) which is axially displaceable in the valve bore (12) and on which the spring unit (14) acts on a first side of the pressure piece (20) and the pressure in the pressure chamber (18) acts on a second side of the pressure piece (20).
Dependencies are inferred from the claim text.