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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.:

US 10612593 B1

PDFFull Text
Date of Patent:
Apr. 07, 2020

Filed:

Oct. 27, 2017

Magnetic preloading of bearings in rotating machines

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:

Fletcher Yoder, P.C.

Primary Examiner:

Alan B Waits

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.

Find Patent Forward Citations

Kjellnes, Hans. (2020). Magnetic preloading of bearings in rotating machines (U.S. Patent No. 10612593). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10612593

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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