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:
Apr. 07, 2020
Filed:
Oct. 27, 2017
Applicant:
Onesubsea Ip Uk Limited, London, GB;
Inventors:
Hans Fredrik Kjellnes, Bergen, NO;
Erik A. Torbergsen, Bergen, NO;
Åsmund Valland, Bergen, NO;
Audun Magne Askeland, Bergen, NO;
Assignee:
ONESUBSEA IP UK LIMITED, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 17/03 (2006.01); F16C 32/06 (2006.01); F16C 25/04 (2006.01); F16C 39/06 (2006.01);
U.S. Cl.
CPC ...
F16C 32/064 (2013.01); F16C 17/03 (2013.01); F16C 25/045 (2013.01); F16C 39/063 (2013.01); F16C 2326/00 (2013.01); F16C 2380/26 (2013.01);
Abstract
In rotating machine having a vertically oriented rotating shaft, a static magnetic force is used to simulate rotor weight and create the desired bearing preload. By installing a magnet the gravity based preload on the shaft journal bearings of a horizontal machine can be simulated for a vertical shaft. This can increase rotor stability, reduce the machine's vulnerability to hydraulically induced imbalance forces and give a more smooth transition through various shaft speeds.