The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 23, 2016

Filed:

Jan. 29, 2012
Applicants:

Xiaojun Campbell, East Hampton, CT (US);

Thomas G. Phillips, Coventry, CT (US);

Kathleen R. Phillips, Coventry, CT (US);

Inventors:

Xiaojun Campbell, East Hampton, CT (US);

Thomas G. Phillips, Coventry, CT (US);

Kathleen R. Phillips, Coventry, CT (US);

Assignee:

United Technologies Corporation, Hartford, CT (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 6/08 (2006.01); F02K 3/115 (2006.01); F02C 7/18 (2006.01); F02C 7/16 (2006.01); F02C 6/06 (2006.01);
U.S. Cl.
CPC ...
F02C 6/08 (2013.01); F02C 7/185 (2013.01); F02K 3/115 (2013.01); F02C 6/06 (2013.01); F02C 7/16 (2013.01); F05D 2260/20 (2013.01); Y02T 50/675 (2013.01);
Abstract

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.


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