METHOD FOR EXTINGUISHING FIRES FROM AN AIRCRAFT AND RELATED DEVICE

WIPO Patent Application WO/1999/039977

A1

The present invention comprises supplying a liquid onto the source of a fire from an aircraft (7), wherein said liquid is supplied in the form of gas-droplet stream (8) obtained by dispersion in a gas flow and by acceleration of the dual-phase flow in a gas-dynamics nozzle (4). The pressure at the inlet of the nozzle (4) as well as the relative concentration of liquid in the dual-phase flow are selected according to conditions enabling the formation of a dual-phase low-dispersion and high-speed flow which has a high extinguishing-substance concentration and remains stable when submitted to interference. The fire-extinguishing device of the present invention comprises a liquid supply system (1), a gas supply system (2), a mixing chamber (3) for the gas and the liquid as well as a gas-dynamics nozzle (4), wherein all these members are arranged onboard an aircraft (7). The gas-dynamics nozzle supplies the liquid towards the area of the fire source and is connected to a vessel through a duct. The mixing chamber (3) is further provided with a liquid dispersion system.

ZUEV JURY VLADIMIROVICH (RU)
KARPYSHEV ALEXANDR VLADIMIROVI (RU)
LEPESHINSKY IGOR ALEXANDROVICH (RU)

PCT/RU1999/000028

August 12, 1999

February 01, 1999

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NII NIZKIKH TEMPERATUR PRI MAI (RU)
ZUEV JURY VLADIMIROVICH (RU)
KARPYSHEV ALEXANDR VLADIMIROVI (RU)
LEPESHINSKY IGOR ALEXANDROVICH (RU)

A62C3/02; A62C31/00; A62C99/00; B64D1/16; (IPC1-7): B64D1/16

US3604509A	1971-09-14
US4270698A	1981-06-02
RU94012947A1
FR2610894A1	1988-08-19
RU95106565A	1996-12-20
PL127704A
FR2610894A1	1988-08-19
CA975733A	1975-10-07
RU2108270C1	1998-04-10

See also references of EP 1053935A4

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