Title:
遠心分離器
Document Type and Number:
Japanese Patent JP4307562
Kind Code:
B2
Abstract:
A centrifugal separator comprises a housing through which extends a spindle on which is mounted a centrifuge rotor. The rotor is mounted on journal bearing bushes that are lubricated by the liquid supplied at pressure to the rotor and the weight of the liquid-filled rotor is carried by magnetic repulsion thrust bearing comprising permanent magnets secured one each to the housing and rotor. The spaced magnets run without contact noise and frictional losses, improving rotational speed available from the supply pressure, and lateral (radial) instability that is inherent between repelling magnets and normally disliked puts a radial bias on the journal bearings which may result in quieter running by inhibiting vibration, particularly when the journal bushes are starved of liquid supply during wind-down. Alternatively or additionally, supply pressure induced lift of the rotor may be borne by a magnetic repulsion thrust bearing. The magnets may be permanent and/or electromagnets.
Inventors:
Someways, Andrew, Leonard
Application Number:
JP53636298A
Publication Date:
August 05, 2009
Filing Date:
February 11, 1998
Export Citation:
Assignee:
Filterberg Man und Fumer Geem Behr
International Classes:
B04B9/12; B04B1/02; B04B5/00; F16C39/06; F01M11/03
Domestic Patent References:
| JP6280534A | ||||
| JP51029377U | ||||
| JP62030565A | ||||
| JP61107918A | ||||
| JP56062113U | ||||
| JP9276637A | ||||
| JP3267634A | ||||
| JP2075117U | ||||
| JP54049440A | ||||
| JP4244250A | ||||
| JP59186520U |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Yukio Iwamoto
Toru Mori
Hajime Asamura
Yukio Iwamoto
Toru Mori