Title:
真空ポンプ
Document Type and Number:
Japanese Patent JP5706483
Kind Code:
B2
Abstract:
The pump has a gas inlet opening, a gas outlet opening, and a rotor (201) fastened to a rotor shaft (232). The rotor comprises rotating pump-active components and a screw (280) that is arranged at the rotor shaft in an axial direction. A pin (281) is arranged radially or axially in the rotor shaft for inhibiting rotation of the rotor against the rotor shaft, and a projection is formed in the rotor shaft in a radial direction or in an axial direction. The pin stays in engagement with a recess of the rotor shaft. A supporting ring is arranged at a support section.
Inventors:
Robert Watts
Bernhard Tatzbar
Herbert Stammler
Bernhard Tatzbar
Herbert Stammler
Application Number:
JP2013160344A
Publication Date:
April 22, 2015
Filing Date:
August 01, 2013
Export Citation:
Assignee:
Pfeiffer Vacuum Game Behr
International Classes:
F04D19/04
Domestic Patent References:
| JP2000205183A | ||||
| JP2008286179A | ||||
| JP2012127326A |
Foreign References:
| WO2011102006A1 | ||||
| WO2005028874A1 |
Attorney, Agent or Firm:
Mitsufumi Esaki
Blacksmith
Ryota Imamura
Atsushi Shinohara
Kiyota Eisho
Blacksmith
Ryota Imamura
Atsushi Shinohara
Kiyota Eisho