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. 18, 2017
Filed:
Apr. 21, 2016
Applicant:
Rolls-royce Plc, London, GB;
Inventor:
John R Webster, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 57/08 (2006.01); F16C 17/02 (2006.01); F16H 57/04 (2010.01); F16C 3/02 (2006.01); F16H 1/28 (2006.01); F02C 7/36 (2006.01);
U.S. Cl.
CPC ...
F16H 57/08 (2013.01); F16C 3/02 (2013.01); F16C 17/02 (2013.01); F16H 1/28 (2013.01); F16H 57/0479 (2013.01); F02C 7/36 (2013.01); F05D 2260/40311 (2013.01); F16C 2360/23 (2013.01); F16C 2361/61 (2013.01); F16H 2057/085 (2013.01);
Abstract
A hollow cylindrical rotary bearing shaft for a planet gear of an epicyclic gear train, has a cylindrical outer surface accommodating the planet gear, and a wall thickness. The wall thickness of the bearing shaft varies circumferentially around a diameter of the bearing shaft so as to produce a pre-determined circumferential variation in the wall thickness.