Global to push GA events into
skip to main content

Title: Non-contacting "snubber bearing" for passive magnetic bearing systems

A new non-contacting magnetic "snubber" bearing is provided for application to rotating systems such as vehicular electromechanical battery systems subject to frequent accelerations. The design is such that in the equilibrium position the drag force of the snubber is very small (milliwatts). However in a typical case, if the rotor is displaced by as little as 2 millimeters a large restoring force is generated without any physical contact between the stationary and rotating parts of the snubber bearing.
Issue Date:
OSTI Identifier:
Lawrence Livermore National Security, LLC LLNL
Patent Number(s):
Application Number:
Contract Number:
Resource Relation:
Patent File Date: 2014 Nov 28
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
Country of Publication:
United States

Other works cited in this record:

Electromagnetic bearing control apparatus
patent, June 1989

Dynamically stable magnetic suspension/bearing system
patent, February 1996

Magnetic levitation system for moving objects
patent, March 1998

Self-adjusting magnetic bearing systems
patent, July 1998

Combined passive bearing element/generator motor
patent, August 2000

Motor/active magnetic bearing combination structure
patent, September 2000

Magnetic bearings
patent, September 2000

Passive magnetic bearing for a horizontal shaft
patent, December 2003

Inductrack magnet configuration
patent, December 2003

Halbach array generator/motor having an automatically regulated output voltage and mechanical power output
patent, February 2005

Halbach array generator/motor having mechanically regulated output voltage and mechanical power output
patent, June 2005

Eddy-current-damped microelectromechanical switch
patent, October 2007

Motor and magnetic bearing assembly thereof
patent-application, August 2005

Method and Apparatus for Controlling a Magnetic Bearing Device
patent-application, December 2007

Low-Cost Minimal-Loss Flywheel Battery
patent-application, November 2010

Stabilization of Flywheels
patent-application, April 2012

Stabilization of Rotating Machinery
patent-application, April 2012

System And Method For Damping A Wind Vane
patent-application, June 2012

Inner Rotor-Type Permanent Magnet Motor
patent-application, April 2013

Similar records in DOepatents and OSTI.GOV collections: