Title:
側路型ポンプとしてのポンプ
Document Type and Number:
Japanese Patent JP2004511705
Kind Code:
A
Abstract:
A side channel pump, preferably a vacuum pump, includes a driven rotor ( 16 ) and a fixed stator ( 14 ). The rotor ( 16 ) and the stator ( 14 ) define a pump channel circulating in a peripheral direction. Blades are fixed onto the rotor, protruding into the cross-section of the pump channel. The pump channel also includes a blade-free side channel ( 44 ). The pump channel ( 22 ) containing the side channel ( 44 ) extends in a helical manner around the rotor ( 16 ). The pump channel is advantageously not limited to the length of a winding but can have the length of substantially any number of uninterrupted windings. As a result, a high suction performance and a high compression ratio in the pump can be obtained.
Inventors:
Heinrich Englender
Peter Klingner
Ingo Zeckel
Peter Klingner
Ingo Zeckel
Application Number:
JP2002534705A
Publication Date:
April 15, 2004
Filing Date:
September 28, 2001
Export Citation:
Assignee:
Leybold Vakuum GmbH
International Classes:
F04D5/00; F04D17/16; F04D19/04; F04D23/00; F04D29/22; F04D29/24; F04D29/42; F04D29/44; F04D29/58; (IPC1-7): F04D5/00; F04D23/00; F04D29/22; F04D29/24; F04D29/42; F04D29/44; F04D29/58
Domestic Patent References:
| JPH01102498A | 1989-04-20 | |||
| JPS5056606A | 1975-05-17 | |||
| JPH08100780A | 1996-04-16 | |||
| JP2001221186A | 2001-08-17 | |||
| JPH04136497A | 1992-05-11 |
Foreign References:
| US4645413A | 1987-02-24 |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel