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:
Jul. 20, 2021
Filed:
Jan. 24, 2019
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Michel Labrecque, St-Bruno, CA;
Vincent Couture-Gagnon, Boucherville, CA;
Richard Ullyott, St-Bruno, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 7/045 (2006.01); F02C 7/042 (2006.01); F02K 3/04 (2006.01); F02K 3/06 (2006.01); F02K 3/02 (2006.01); F01D 17/14 (2006.01);
U.S. Cl.
CPC ...
F02C 7/045 (2013.01); F02C 7/042 (2013.01); F01D 17/143 (2013.01); F02K 3/025 (2013.01); F02K 3/04 (2013.01); F02K 3/06 (2013.01); F05D 2250/311 (2013.01); F05D 2250/712 (2013.01); F05D 2250/90 (2013.01); F05D 2260/96 (2013.01);
Abstract
A variable geometry inlet system of an aircraft engine includes an inlet duct. The inlet duct includes at least first and second sections moveable between extended and retracted positions such that the inlet duct defines a variable axial length of an inlet passage for selective flight conditions. The inclusion of acoustic treatment may assist in controlling noise.