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. 01, 2015
Filed:
Sep. 19, 2013
Applicant:
Rolls-royce Plc, London, GB;
Inventor:
Michael Richard Hancox, Herts, GB;
Assignee:
ROLLS-ROYCE PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 57/04 (2010.01); F02C 7/36 (2006.01); F16H 57/08 (2006.01); F16H 1/28 (2006.01); F01D 25/18 (2006.01);
U.S. Cl.
CPC ...
F16H 57/0424 (2013.01); F01D 25/18 (2013.01); F02C 7/36 (2013.01); F16H 1/28 (2013.01); F16H 57/043 (2013.01); F16H 57/0409 (2013.01); F16H 57/0486 (2013.01); F16H 57/082 (2013.01); F05D 2260/40311 (2013.01); F16H 57/0404 (2013.01);
Abstract
An epicyclic gearbox including: a sun gear, a ring gear, an array of planet gears that each mesh with the sun gear and the ring gear and rotate relative thereto, and a planet carrier that couples the planet gears in relative position to each other. The planet carrier includes interplanetary portions that are located between adjacent pairs of planet gears and have a first and a second circumferential surface facing each adjacent planet gear; and direction features on at least one of the circumferential surfaces that, in use, direct fluid ejected with a radial component from the planet gears and direct it with an axial component.