RESPIRATORY SUPPORT SYSTEM

摘要

A system for isothermally separating one component from a fluid mixture to produce a breathable fluid by alternately presenting the fluid mixture to first and second beds of adsorbent material. A control valve adjacent each of the beds will admit the fluid under pressure from a compressor and a storage reservoir to rapidly build up the pressure in the selected absorbent bed of material. The beds of adsorbent material are interconnected by a first conduit through which the fluid under pressure is communicated, a second conduit through which the product effluent flowing from the selected bed after retention of one component of the fluid mixture is communicated to the other bed for removal of the one component therefrom by flowing to the atmosphere, a third conduit for equalization of the fluid pressure is the first and second beds upon switching from one bed to the other, and a fourth conduit through which the product effluent is carried to a storage reservoir for use as a breathable fluid. A timing mechanism is connected to a manual control which automatically switches the operation of valves in the fluid mixture supply line in a first mode of operation is prevented from operating in a second mode when positive pressure breathing is desired by an operator.