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Pneumatic puncture device for aircraft fire suppression systems

  • US 20060219416A1
  • Filed: 03/15/2006
  • Published: 10/05/2006
  • Est. Priority Date: 03/15/2005
  • Status: Active Grant
First Claim
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1. A fire suppression device for dispensing a fire retardant foam into an aircraft cargo compartment, comprising:

  • a housing including a piston chamber, a gas inlet for connection to a source of pressurized gas, a gas flow passage for connecting the gas inlet to an extend side of the piston chamber, and a foaming agent inlet for connection to a source of a foaming agent;

    a plunger including a piston movable in the piston chamber between a retracted position and an extended position when pressurized gas is supplied to the extend side of the piston chamber via the gas inlet and gas flow passage; and

    a foaming chamber a discharge opening through which fire retardant foam is dispensed from the foaming chamber, the foaming chamber being connected at its inlet end by an inlet passage that communicates with the foaming agent inlet when the plunger is in its extended position.

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