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

Abstract

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.

Inventors:
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1376063
Patent Number(s):
9,739,307
Application Number:
14/556,029
Assignee:
Lawrence Livermore National Security, LLC LLNL
DOE Contract Number:
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Nov 28
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 25 ENERGY STORAGE

Citation Formats

Post, Richard F. Non-contacting "snubber bearing" for passive magnetic bearing systems. United States: N. p., 2017. Web.
Post, Richard F. Non-contacting "snubber bearing" for passive magnetic bearing systems. United States.
Post, Richard F. Tue . "Non-contacting "snubber bearing" for passive magnetic bearing systems". United States. doi:. https://www.osti.gov/servlets/purl/1376063.
@article{osti_1376063,
title = {Non-contacting "snubber bearing" for passive magnetic bearing systems},
author = {Post, Richard F},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 22 00:00:00 EDT 2017},
month = {Tue Aug 22 00:00:00 EDT 2017}
}

Patent:

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