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:
Nov. 06, 2018
Filed:
Jan. 20, 2015
Applicant:
United Technologies Corporation, Hartford, CT (US);
Inventors:
Christopher J. Hanlon, Sturbridge, MA (US);
Daniel B. Kupratis, Wallingford, CT (US);
Walter A. Ledwith, Marlborough, CT (US);
Assignee:
United Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02K 3/075 (2006.01); F02K 3/077 (2006.01); F02C 9/18 (2006.01);
U.S. Cl.
CPC ...
F02C 9/18 (2013.01); F02K 3/075 (2013.01); F02K 3/077 (2013.01); Y02T 50/671 (2013.01);
Abstract
A gas turbine engine includes low and high spools constructed and arranged to rotate about an engine axis. The low spool drives at least one leading stage of a fan section and the high spool drives an aft stage of the fan section. The aft stage may generally include a bypass duct for controllably flowing a bypass stream directly from the leading stage and controllably and/or selectively into an auxiliary flowpath and/or into a second flowpath both located radially outward from a core flowpath.