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:
May. 16, 2023
Filed:
Apr. 28, 2022
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventor:
David Menheere, Norval, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 17/00 (2006.01); F01D 17/16 (2006.01);
U.S. Cl.
CPC ...
F01D 17/00 (2013.01); F01D 17/16 (2013.01); F01D 17/165 (2013.01); F05D 2220/30 (2013.01);
Abstract
A variable guide vane control system comprises an actuator and a rolling contact joint. The joint includes a drive ring rotatable about a drive axis and at least one roller rotatable about a roller axis parallel to the drive axis and drivingly connectable to a vane. A first flexible member and a second flexible member connect the drive ring and the roller to one another. The first flexible member and the second flexible member are respectively tensioned when the drive ring rotates about the drive axis in a first direction and in a second direction opposite the first direction.