Title:
2つの協働するロータを備えた真空ポンプ
Document Type and Number:
Japanese Patent JP4838480
Kind Code:
B2
Abstract:
A vacuum pump ( 1 ) comprising a pump chamber casing ( 5 ) accommodating two co-operating rotors ( 2, 3 ) which are respectively arranged on a shaft ( 8, 9 ). A bearing/gear chamber ( 6 ) is disposed adjacent to the pump chamber casing ( 5 ) in which the rotor shafts ( 8, 9 ) are cantilevered and provided with a synchronisation gear ( 17 ). A drive motor ( 25 ) whose drive shaft ( 28 ) extending parallel to the rotor shafts ( 8, 9 ) and is provided with a drive gear ( 35 ). A gear stage ( 37 ) is disposed between the drive shaft ( 28 ) and one of the rotor shafts ( 8, 9 ). In order to provide a machine of this type which can be embodied in a compact form, the drive gear ( 35 ) of the drive shaft ( 28 ) engages directly with a driven gear ( 36 ) on one of the rotor shafts ( 8, 9 ), forming the gear stage ( 37 ).
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Inventors:
Manfred Bering
Rotor brenner
Thomas dry felt
Hartmut Creeane
Klaus Lofar
Rotor brenner
Thomas dry felt
Hartmut Creeane
Klaus Lofar
Application Number:
JP2001577068A
Publication Date:
December 14, 2011
Filing Date:
March 15, 2001
Export Citation:
Assignee:
Leybold Vakuum GmbH
International Classes:
F04C18/16; F04C25/02; F04C29/00
Domestic Patent References:
| JPS63198789A | 1988-08-17 | |||
| JPH08144977A | 1996-06-04 |
Attorney, Agent or Firm:
Toshio Yano
Takuya Kuno
Einzel Felix-Reinhard
Takuya Kuno
Einzel Felix-Reinhard