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:
Jan. 21, 2020
Filed:
Jan. 05, 2017
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
David A Edwards, Derby, GB;
Stewart T Thornton, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 3/04 (2006.01); F04D 29/041 (2006.01); F16C 17/04 (2006.01); F01D 25/16 (2006.01); F16C 17/08 (2006.01);
U.S. Cl.
CPC ...
F01D 3/04 (2013.01); F01D 25/168 (2013.01); F04D 29/041 (2013.01); F04D 29/0413 (2013.01); F04D 29/0416 (2013.01); F16C 17/04 (2013.01); F05D 2260/15 (2013.01); F16C 17/08 (2013.01);
Abstract
A thrust balancing mechanism for balancing axial loads on a rotor thrust bearingis described. The mechanism comprises a piston arrangementaxially mounted on a stationary structure, about a center axis arranged, in use, in coaxial alignment with a rotating shaftcarrying the rotor thrust bearing. A hydrodynamic thrust bearingis mounted, in use, between the pistonand the rotor thrust bearing. The pistonis pressurized so as to impart to the rotor thrust bearing, via the hydrodynamic thrust bearing, an axial load which counters an axial load imparted to the rotor thrust bearingby the rotating shaft