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. 23, 2019
Filed:
Feb. 25, 2016
Applicant:
General Electric Company, Schenectady, NY (US);
Inventors:
Thomas Ory Moniz, Loveland, OH (US);
Joseph George Rose, Mason, OH (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/16 (2006.01); F02C 3/067 (2006.01); F16C 27/04 (2006.01); F01D 25/18 (2006.01); F16C 19/26 (2006.01);
U.S. Cl.
CPC ...
F01D 25/164 (2013.01); F01D 25/18 (2013.01); F02C 3/067 (2013.01); F16C 27/045 (2013.01); F05D 2220/32 (2013.01); F05D 2240/50 (2013.01); F05D 2240/60 (2013.01); F05D 2250/44 (2013.01); F05D 2260/96 (2013.01); F05D 2260/98 (2013.01); F16C 19/26 (2013.01); F16C 2360/23 (2013.01); Y02T 50/671 (2013.01);
Abstract
A counter-rotating shaft assembly of a gas turbine engine includes an outer shaft rotatable in a first direction about a virtual rotational axis, an inner shaft counter-rotatable about the virtual rotational axis in a second direction that is opposite to the first direction, a differential bearing rotatably connecting the two shafts, a centering spring connecting the inner shaft to the differential bearing, and a squeeze film damper between the differential bearing and the inner shaft.