Raytheon Technologies Corporation

United Technologies Corporation

Rtx Corporation

Xiaojun Campbell

Steven H Zysman

Jesse W Clauson

Karl D Blume

James H Anderson

Holly Teufel

Michael C Rhodes

Graham A Kaiser

Karl Milenkovic

Tsering Dolma

William O Taylor

Thomas G Phillips

Kathleen R Phillips

Holly Teuful

A gas turbine engine includes a compressor section, a combustor, and a turbine section. A bleed tap taps air from the compressor section through a bleed valve. The bleed valve is selectively opened by a control to dump air from the compressor section to a dump outlet. A heat exchanger duct includes a duct air inlet to cool a fluid in a heat exchanger and a duct air outlet. The dump outlet is within the heat exchanger duct.

Engine bleed air ducting into heat exchanger

A gas turbine engine has a fan, a compressor section, a combustor, and a turbine section. The fan delivers a portion of air into the compressor, and into a duct, as bypass air. A bleed air system bleeds a quantity of air from the compressor into a chamber at least at low power conditions of the engine. The bleed air system has an opening which may be selectively closed to block bleed air, or opened to allow bleed flow from the compressor into the chamber. A heat exchanger is positioned such that a first surface of the heat exchanger is contacted by bypass air in the duct, and a second surface of the heat exchanger is contacted by bleed air when the bleed air system directs air from the compressor into the chamber.

Heat exchanger

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East Hampton, CT, United States of America

Xiaojun Campbell