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.
Patent No.:
Date of Patent:
Aug. 05, 2014
Filed:
Jan. 31, 2012
Jorn A. Glahn, Manchester, CT (US);
Clifton J. Crawley, Glastonbury, CT (US);
Philip S. Stripinis, Rocky Hill, CT (US);
William K. Ackermann, East Hartford, CT (US);
Jorn A. Glahn, Manchester, CT (US);
Clifton J. Crawley, Glastonbury, CT (US);
Philip S. Stripinis, Rocky Hill, CT (US);
William K. Ackermann, East Hartford, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A gas turbine engine includes a buffer system that can communicate buffer supply air to a portion of the gas turbine engine. The buffer system can include a first circuit and a second circuit. The first circuit selects between a first bleed air supply having a first pressure and a second bleed air supply having a second pressure that is greater than the first pressure to render a first buffer supply air having an intermediate pressure. The second circuit selects between a third bleed air supply and a fourth bleed air supply to communicate a second buffer supply air.