Patent ID: 6634595
Filing Date: 2003-10-21
Classification: B64D,F02C,Y10T

Abstract:
An aircraft propulsion system, comprising:an external flow surface having a forward portion; an engine inlet positioned at least proximate to the external flow surface and aft of the forward portion, the engine inlet having an aperture positioned at least proximate to the external flow surface; an engine inlet duct extending aft from the aperture to an engine location; and an auxiliary flow duct positioned at least proximate to the external flow surface, the auxiliary flow duct having a first opening positioned to receive flow from the external flow surface during at least a first portion of an operating schedule of the propulsion system, with flow surfaces of the auxiliary flow duct fixed at the first opening, the auxiliary flow duct further having a second opening spaced apart from the first opening, the auxiliary flow duct being configured to direct air to the engine location during at least a second portion of the operating schedule of the propulsion system.