Compressed air foam pump apparatus

Details Compressed air foam pump apparatus Compressed air foam pump apparatus

A - Human Necessities

62

C

A62C 5/02 (2006.01)

Patent

CA 2152955

Fire fighting apparatus (10) for generating air compressed foam having both a water and a surfactant metering device (26, 20) for dispensing controlled and discrete quantities of both into a mixing conduit (24) where they combine into a foam solution. The foam solution is combined with air (44) prior to being injected within an air compressor device (40) where foam is generated and then is discharged therefrom. The air compressor (40) is also controlled to dispense a discrete quantity of foam therefrom in correlation with the discrete quantities dispensed from the other two metering devices (26, 20). The quantitative dispensing coordination of the air compressor (40) with the two metering devices (26, 20) make all three devices (20, 26, 40) both relational and proportional in the cooperative generation of compressed air foam, and thus ensures prompt production of constant quality foam. Various environmental operating parameters are monitored and controlled to enable prompt production of constant quality air compressed foam.

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