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:
Mar. 02, 2021
Filed:
Feb. 15, 2018
Applicants:
Rolls-royce Plc, London, GB;
Rolls-royce Deutschland Ltd & CO KG, Dahlewitz, DE;
Inventors:
David P. Scothern, Derby, GB;
Stephan Uhkötter, Berlin, DE;
Assignees:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 57/04 (2010.01); F04D 1/00 (2006.01); F16J 15/00 (2006.01); F16J 15/3204 (2016.01); F16D 33/02 (2006.01);
U.S. Cl.
CPC ...
F16H 57/043 (2013.01); F04D 1/003 (2013.01); F16D 33/02 (2013.01); F16H 57/0427 (2013.01); F16H 57/0471 (2013.01); F16H 57/0482 (2013.01); F16J 15/002 (2013.01); F16J 15/3204 (2013.01);
Abstract
A fluid transfer coupling comprises a first shaft assembly a second shaft assembly, and a seal assembly. The first shaft assembly comprises a first shaft and an annular fin attached to the first shaft, the annular fin having one or more internal passages extending therethrough. Each internal passage connects a centre portion of the first shaft to a radially outwardly facing side of the annular fin. The second shaft assembly comprises a second shaft and an annular trough extending radially outwardly of the second shaft.