AIRCRAFT FIRE EXTINGUISHING SYSTEM AND METHOD

摘要

The aircraft fire extinguishing system and method applies to helicopters having suspended or built-in liquid reservoir. The innovation lies on the transformation of the firefighting liquid into artificial rain in the form of an umbrella having diameter approximately equal to the diameter of the helicopter's propeller, with adjustable density and duration. The rain creation mechanism in both cases consists of a hollow propeller with two wings where the liquid is guided hydraulically. The liquid jets through nozzles which are in counterpoised arrangement causing the initial revolution of the hollow propeller. This rotation is accelerated and stabilized from the downstream of the helicopter's propeller. The reservoir is suspended from a helicopter's hook by a stretcher using four chains. The built-in reservoir includes an inclined or retractable metallic pipe which the hollow propeller is adapted through a free rotation mechanism. The hollow propeller is set into motion by means of a pressure pump.

主权项

1. A fire extinguishing system for a creation of artificial rain by utilizing 100% of a liquid carried by a firefighting helicopter, said fire extinguishing system comprising:
a reservoir configured to retain a liquid therein; a whirl having a hollow shaft in communication with said reservoir and configured to receive the liquid from said reservoir, said hollow shaft having a plurality of fins with a window defined between said fins configured to allow the liquid to enter said hollow shaft; and a hollow propeller connected to an axis of said whirl, said hollow propeller being in communication with said hollow shaft and configured to receive the liquid from said hollow shaft, said hollow propeller having at least two blades each with a set of nozzles configured to create an artificial rain; wherein said artificial rain from said hollow propeller has an umbrella shape with a diameter approximately equal to a diameter of a main rotor of the helicopter, said artificial rain possesses predetermined characteristics of density, intensity and duration.