Resources Contact Us Home
Oxygen supply system having a central flow control

Image Number 8 for United States Patent #7789101.

A Regulator-Oxygen (ROX) Unit for regulating oxygen flow in an emergency oxygen distribution system in passenger aircraft initially allows unregulated surge of oxygen to purge ambient air from the system. After sufficient pressure is achieved in the system, the ROX unit regulates oxygen flow mechanically with a diaphragm engaging a regulator valve that responds to the pressure of the oxygen under the diaphragm to reduce the flow of oxygen through the ROX unit, which accounts for altitude changes by communicating the inlet pressure to the chamber above the diaphragm. A bleed exit allows the oxygen to escape to the ambient air. One or more aneroid valves serve to adjust the amount of oxygen allowed to exit through the bleed exit, allowing less oxygen to escape with increasing altitude. An increase in pressure above the diaphragm allows more oxygen to flow through the regulator valve.

  Recently Added Patents
Systems and method for automatic color plane misregistration calibration
Resistive random access memory cell and resistive random access memory module
Distortion compensation device, distortion compensation method, and radio transmitter
Integrated circuit packaging system with laser hole and method of manufacture thereof
Motor device and method of manufacturing the same
Stability control system with body-force-disturbance heading correction
Measuring device and measuring method that use pulsed electromagnetic wave
  Randomly Featured Patents
Polymerization initiator
Electronic telephone activity toy
Filter cleaning device
Direct memory access controller having programmable timing
Displacement information detecting apparatus
Thermo-mechanical cracking and hydrogenation
Apparatus and method of controlling the environmental temperature near semiconductor devices under test
Geartooth sensor with a centerline in nonintersecting relation with a center of rotation of a rotatable member
Apparatus for use in maxillary orthopaedics
Icon for a portion of a display screen