US Patent 7946104 Bleed air relief system for engines

A bleed air relief system for engines in which a flow of bleed air from the engine compressor is passed along a bleed air duct and exhausted into a bypass air stream passing through the engine. A cover is mounted over the outlet of the bleed air duct and can include flow passages and a diffuser for controlling the flow of bleed air being exhausted to enhance mixing of the bleed air with the bypass air stream.