Title:
VACUUM PUMP
Document Type and Number:
Japanese Patent JP2019108891
Kind Code:
A
Abstract:
To complete a substitute for a conventional support device by overcoming demerits in the prior art.SOLUTION: A vacuum pump in which a roller supporting portion 181 assigned to a pre-vacuum region of a rotary shaft 135 has an outer ring 182 and an inner ring 184, and a plurality of roller bodies 186 are disposed between the outer ring and the inner ring, is provided with a support device having a supporting cassette for supporting the roller supporting portion, and the supporting cassette partially has a plastic material, and has a housing part for housing the outer ring of the roller support portion, and a fixing part for fixing the supporting cassette to a member connected to a housing 119 in a fixed manner.SELECTED DRAWING: Figure 3
Inventors:
THILO WILLE
HERBERT STAMMLER
KOCI BERND
HERBERT STAMMLER
KOCI BERND
Application Number:
JP2018229542A
Publication Date:
July 04, 2019
Filing Date:
December 07, 2018
Export Citation:
Assignee:
PFEIFFER VACUUM GMBH
International Classes:
F04D19/04
Domestic Patent References:
| JP2008542628A | 2008-11-27 | |||
| JP2010504465A | 2010-02-12 | |||
| JP2008275152A | 2008-11-13 |
Foreign References:
| WO2006117515A1 | 2006-11-09 | |||
| GB2535163A | 2016-08-17 | |||
| US6149382A | 2000-11-21 | |||
| US5425584A | 1995-06-20 |
Attorney, Agent or Firm:
Mitsufumi Esaki
Blacksmith
Atsushi Shinohara
Shinsuke Nakamura
Blacksmith
Atsushi Shinohara
Shinsuke Nakamura