초록 ▼

An on-board oxygen generating system (OBOGS) includes a molecular sieve oxygen generating system (MSOGS), a breathable gas delivery regulator selectively operable to deliver 100 percent MSOGS output gas or air diluted output gas to a user, a back-up storage plenum and control means arranged so that

An on-board oxygen generating system (OBOGS) includes a molecular sieve oxygen generating system (MSOGS), a breathable gas delivery regulator selectively operable to deliver 100 percent MSOGS output gas or air diluted output gas to a user, a back-up storage plenum and control means arranged so that when air diluted delivery gas is selected a portion of 100 percent MSOG output gas is diverted to charge the storage plenum and when 100 percent MSOG output delivery gas is selected diversion to the storage plenum is automatically prevented. The breathable gas delivery regulator includes an injector adapted to induce a flow of air to mix with 100 percent MSOG output gas when air diluted delivery gas is selected.

대표청구항 ▼

An on-board oxygen generating system including an aircraft aircrew breathing demand regulator comprising inlet means for receiving a supply of oxygen-enriched breathable gas from a molecular sieve oxygen generating system (MSOGS), outlet means for delivering breathable gas to an end user, demand val

An on-board oxygen generating system including an aircraft aircrew breathing demand regulator comprising inlet means for receiving a supply of oxygen-enriched breathable gas from a molecular sieve oxygen generating system (MSOGS), outlet means for delivering breathable gas to an end user, demand valve means connected between said inlet means and said outlet means for controlling delivery of MSOGS oxygen-enriched breathable gas from said inlet means to said outlet means in response to breathing demands of the end user, injector means including an injector nozzle connected between said demand valve means and said outlet means and operable by said MSOGS oxygen-enriched breathable gas, injector nozzle bypass means including control means for controlling flow of MSOGS oxygen-enriched breathable gas to bypass said injector nozzle or to be entirely through said injector nozzle in passing from said demand valve means to said outlet means, ambient air inlet means including ambient air inlet control valve means for permitting ambient air to be drawn into said regulator by said injector means, and regulator mode selector switch means for controlling said injector nozzle bypass control means and said ambient air inlet control valve means, whereby in one mode of regulator operation said ambient air inlet control valve means is closed and said injector nozzle bypass means is open to permit undiluted MSOGS oxygen-enriched breathable gas to be delivered to said outlet means and in another mode of regulator operation said ambient air inlet control valve means is open and said injector nozzle bypass means is closed so that MSOGS oxygen-enriched breathable gas flows through said injector nozzle to induce ambient air to enter said regulator to mix with MSOGS oxygen-enriched breathable gas and breathable gas of diluted oxygen concentration is delivered to said outlet means.