Patent ID: 8517018
Filing Date: 2013-08-27
Classification: A62B,B64D

Abstract:
1. An oxygen supply system for an aircraft, wherein the said system comprises: a control valve; a reservoir bag; a respiration device; and a sensor device; wherein the control valve is configured such that oxygen is supplied to the reservoir bag until a predetermined quantity of oxygen is adjusted in the reservoir bag; wherein the respiration device is configured such that breathing gas inside the reservoir bag is provided for a passenger; wherein the sensor device is configured such that an exhalation is detectable; wherein the reservoir bag is configured such that a predetermined quantity of oxygen is metered into the reservoir bag during the exhalation; wherein the reservoir bag is further configured such that breathing gas is supplied to the respiration device in a pulsed fashion responsive to the control valve; wherein the oxygen supply system is configured to operate in one of a first operation mode and a second operation mode; wherein the first operation mode is an on demand oxygen supply mode; wherein the second operation mode is a permanent oxygen supply mode; and wherein the system is configured to switch from the first operation mode to the second operation mode based on a first parameter determined either by a controller of the oxygen supply system or based on an output of at least one sensor and supplied to the controller of the oxygen supply system.