Windshield defrosting apparatus and method for aircraft
AssigneeAir Comm Corporation
InventorNorman F. Steiner
Life of this patent
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Abstract
An aircraft, for example, helicopters, windshield defogger and/or deicer system is discussed which is connectable with a high pressure, high temperature air supply from the compression stage of a turbine engine. The system utilizes a Coanda-type ejector method to mix and distribute high temperature bleed air and cabin air to an existing defroster dispersal shroud fixed adjacent to the aircraft windshield.
Claims17
A defrosting apparatus for aircraft having an engine providing a high pressure, high temperature air supply source, a windshield, and an existing air disperser adjacent to the windshield for distributing air at the windshield, the disperser having an air inlet, said apparatus comprising expelling means connectable with the supply source of high pressure, high temperature air and positionable adjacent to the inlet of the disperser for expelling high pressure, high temperature air into the inlet so that cabin air is also drawn into the inlet, mixed in the disperser with the high temperature air and distributed as warm air from the disperser of the windshield.
A defrosting apparatus for aircraft having an engine providing a high pressure, high temperature air supply source and a windshield, said apparatus comprising:
- an air dispersal shroud adjacent to the windshield for distributing air at the windshield, the shroud having an air inlet;
- an ejector connectable with the supply source of high pressure, high temperature air and positionable adjacent to the inlet of the shroud to expel high pressure, high temperature air into the inlet so that cabin air is also drawn into the inlet, mixed in the shroud with the high temperature air and distributed as warm air from the shroud at the windshield;
- and
- means for connecting said ejector with the high pressure, high temperature air supply source.
A method for defrosting a windshield of an aircraft, the aircraft having an engine providing a high pressure, high temperature air supply source and an existing air disperser adjacent to the windshield for distributing air at the windshield, the disperser having an inlet, said method comprising the steps of directing high pressure, high temperature air from the supply source to a position adjacent to the inlet of the disperser, and expelling the high pressure, high temperature air into the inlet so that cabin air is also drawn into the inlet, mixed in the disperser with the high temperature air and distributed as warm air from the disperser at the windshield.
Dependencies are inferred from the claim text.