Patent ID: 7604019
Filing Date: 2009-10-20
Classification: A62B,F16K,G05D,Y10T

Abstract:
1. An electromechanical regulator for regulating passenger oxygen for aircraft, comprising: an electromechanical regulator valve body including a supply inlet chamber and an outlet chamber; an oxygen supply inlet port for receiving oxygen from a source of oxygen, said oxygen supply inlet port being connected to said supply inlet chamber by a first supply channel; an oxygen outlet port connected to said outlet chamber; a balanced valve disposed in said electromechanical regulator valve body, said balanced valve including a valve channel defined in said electromechanical regulator valve body, a valve diaphragm separating said supply inlet chamber and said outlet chamber, said valve diaphragm including an opening forming a valve seat, and a valve member disposed in said valve channel and moveable therein between a valve closed position and a valve open position, said valve member being biased to engage said valve seat in the valve closed position; an electronic valve portion disposed in said electromechanical regulator valve body, said electronic valve portion being operative to control movement of said valve member between said open and closed positions responsive to sensed cabin pressure in the aircraft and sensed output pressure in said oxygen outlet port; and a mechanical valve portion disposed in said electromechanical regulator valve body, said mechanical valve portion including a supply pressure sensing chamber, said mechanical valve portion being operative to move said valve member between said open and closed positions responsive to pressure in said supply pressure sensing chamber and pressure in said outlet chamber.