skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Apparatus and method for magnetically unloading a rotor bearing

Abstract

An apparatus and method for unloading a rotor bearing is described. The apparatus includes an electromagnet for levitating the rotor. In one embodiment, a sensor of the magnetic field near the electromagnet is used to control the current to levitate the rotor. In another embodiment, a method is provided that includes rotating the rotor, increasing the current to levitate the rotor and decrease the gap between electromagnet and rotor, and then reducing the current to levitate the rotor with a minimal amount of electric power to the electromagnet.

Inventors:
Publication Date:
Research Org.:
Amber Kinetics, Inc., Union City, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1420774
Patent Number(s):
9,892,839
Application Number:
13/973,937
Assignee:
Amber Kinetics, Inc. (Union City, CA) NETL
DOE Contract Number:
FOA-0000036
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Aug 22
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Sanders, Seth Robert. Apparatus and method for magnetically unloading a rotor bearing. United States: N. p., 2018. Web.
Sanders, Seth Robert. Apparatus and method for magnetically unloading a rotor bearing. United States.
Sanders, Seth Robert. Tue . "Apparatus and method for magnetically unloading a rotor bearing". United States. doi:. https://www.osti.gov/servlets/purl/1420774.
@article{osti_1420774,
title = {Apparatus and method for magnetically unloading a rotor bearing},
author = {Sanders, Seth Robert},
abstractNote = {An apparatus and method for unloading a rotor bearing is described. The apparatus includes an electromagnet for levitating the rotor. In one embodiment, a sensor of the magnetic field near the electromagnet is used to control the current to levitate the rotor. In another embodiment, a method is provided that includes rotating the rotor, increasing the current to levitate the rotor and decrease the gap between electromagnet and rotor, and then reducing the current to levitate the rotor with a minimal amount of electric power to the electromagnet.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 13 00:00:00 EST 2018},
month = {Tue Feb 13 00:00:00 EST 2018}
}

Patent:

Save / Share: