Patent ID: 6343465
Filing Date: 2002-02-05
Classification: A62C,B64D,F02C,Y02T

Abstract:
A method for using an aircraft's dedicated propulsive or, auxiliary power engines for purging and removing dangerous fuel fumes and heat from within said aircraft's, fuel tank or fuel tank compartment areas with replacement of said fumes and heat by cooler, mechanically refrigerated air or cabin-cockpit outflow air comprising:(a) a duct or conduit means interconnecting said aircraft's fuel tank ullage and fuel tank compartment areas and said aircraft's dedicated engine's outside air intake section for the transmission of said fuel fumes and hot air into said engine's combustion section when said engine is operating, (b) said fuel tank or fuel tank compartment areas containing an inflow valve means wherein mechanically refrigerated or cabin-cockpit outflow air can enter therein, (c) suctioning said dangerous and explosive fuel fumes and heat into said engine's outside air intake then into said combustion section for combustion and exhaust.