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:
Sep. 28, 2021
Filed:
Jul. 10, 2019
Applicant:
Raytheon Technologies Corporation, Farmington, CT (US);
Inventors:
Gabriel L. Suciu, Glastonbury, CT (US);
Jesse M. Chandler, South Windsor, CT (US);
Assignee:
Raytheon Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/56 (2006.01); F04D 27/00 (2006.01); F01D 9/04 (2006.01); F01D 17/12 (2006.01); F01D 17/14 (2006.01); F01D 17/16 (2006.01); F01D 25/34 (2006.01);
U.S. Cl.
CPC ...
F04D 29/563 (2013.01); F01D 9/04 (2013.01); F01D 9/042 (2013.01); F01D 17/12 (2013.01); F01D 17/14 (2013.01); F01D 17/162 (2013.01); F01D 25/34 (2013.01); F04D 27/002 (2013.01);
Abstract
A gas turbine engine includes a harmonic drive driven by an actuator, a drive shaft driven by the harmonic drive, the drive shaft with a first drive gear and a second drive gear. A first variable vane stage with a first actuator gear to direct drive one of a multiple of variable vanes, the first actuator gear meshed with the first drive gear; and a second variable vane stage with a second actuator gear to direct drive one of a multiple of variable vanes, the second actuator gear meshed with the second drive gear.