Chemical and biological warfare filter injector mechanism

Details Chemical and biological warfare filter injector mechanism Chemical and biological warfare filter injector mechanism

F - Mech Eng,Light,Heat,Weapons

41

H

F41H 9/00 (2006.01) A62B 7/12 (2006.01)

Patent

CA 2089817

An injector mechanism uses breathing system gas to entrain cabin air to demist and defog the hood and visor of an aircrew chemical ad biological warfare ("CBW") suit. The injector includes a needle valve for flow rate adjustment and an aneroid for altitude compensation. The CBW filter is downstream of the negative pressure produced by the injector to purify any ambient air drawn into the system at the negative pressure region. Positive pressure in the system downstream of the CBW filter prevents inward leakage and contamination of the demist and defog gas stream.

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