Drain valve assembly
AssigneeHoneywell International Inc.
InventorsBret D. Armstrong, Steven M. Perry, Anthony T. Matarazzo
Life of this patent
Estimating the term…
Abstract
An on-board oxygen generating system is provided, which includes an air supply duct, a breathing gas duct, and an oxygen generator fluidly coupled between the air supply duct and the breathing gas duct. The oxygen generator is configured to enrich the oxygen content of air flowing from the air supply duct to the breathing gas duct. A drain valve assembly is fluidly coupled to the air supply duct and configured to move between: (i) an open position wherein condensation may drain from the air supply duct, and (ii) a closed position.
Claims13
An on-board oxygen generating system for deployment onboard an aircraft, the on-board oxygen generating system comprising:
- an air supply duct;
- a breathing gas duct configured to supply breathing gas to at least one occupant of the aircraft;
- an oxygen generator fluidly coupled between said air supply duct and said breathing gas duct, said oxygen generator configured to enrich the oxygen content of air flowing from said air supply duct to said breathing gas duct;
- and
- a drain valve assembly fluidly coupled to said air supply duct and to said breathing gas duct, said drain valve assembly configured to move from an open position wherein condensation may drain from said air supply duct to a closed position when the pressure within said breathing gas duct surpasses a predetermined pressure threshold.
An on-board oxygen generating system, comprising:
- an air supply duct;
- a breathing gas duct;
- an oxygen generator fluidly coupled between said air supply duct and said breathing gas duct, said oxygen generator configured to enrich the oxygen content of air flowing from said air supply duct to said breathing gas duct;
- and
- a drain valve assembly, comprising:
- a housing including a control pressure inlet fluidly coupled to said breathing gas duct, a control pressure inlet, a moisture inlet fluidly coupled to said air supply duct, and a moisture outlet;
- a valve disposed within said housing and movable between (i) an open position wherein moisture received at said moisture inlet drains through said moisture outlet, and (ii) a closed position;
- and
- a diaphragm coupled to said valve and in fluid communication with said control pressure inlet, said diaphragm configured to move said valve to the closed position when the air flowing through said control pressure inlet surpasses a predetermined pressure threshold.
An on-board oxygen generating system, comprising:
- an air supply duct;
- a breathing gas duct;
- an oxygen generator fluidly coupled between said air supply duct and said breathing gas duct, said oxygen generator configured to enrich the oxygen content of air flowing from said air supply duct to said breathing gas duct;
- and
- a drain valve assembly, comprising:
- a housing including a moisture inlet fluidly coupled to said air supply duct, a moisture outlet, and a control pressure inlet fluidly coupled to said breathing gas duct;
- and
- a valve mounted in said housing and movable between (i) an open position wherein moisture received at said moisture inlet drains through said moisture outlet, and (ii) a closed position.
Dependencies are inferred from the claim text.