Patent ID: 7114431
Filing Date: 2006-10-03
Classification: B64C,F15B

Abstract:
1. An apparatus for operating a mechanism in an emergency, said apparatus comprising: a source of pressurized fluid; a supply conduit connected to the source; a fluid powered actuator connected to operate the mechanism and having a first port operably coupled to receive fluid from the supply conduit and having a second port; a sensing orifice through which fluid flows either to the first port or from the second port, thereby creating a pressure differential across the sensing orifice; and a volumetric flow regulator having bore with a valve element defining an inlet chamber and an outlet chamber within the bore, the inlet chamber communicating with one side of the sensing orifice and the outlet chamber communicating with another side of the sensing orifice, wherein the valve element varies flow of fluid between the inlet and outlet chambers in response to the pressure differential across the sensing orifice.