Title:
2つのヘリカルロータを備える真空ポンプ
Document Type and Number:
Japanese Patent JP2010540824
Kind Code:
A
Abstract:
The pump has a cover (1) defining cylindrical chambers (2a, 2b) bounded by cylindrical peripheral surfaces and transverse end surfaces, and helical rotors (A, B) respectively rotated in the chambers, where the rotors include rotor bodies (6a, 6b), respectively. An inlet passage (4) and an outlet passage (5) communicate inside the cover respectively by an inlet orifice (9) and an outlet orifice (11) in the transverse end surfaces. The rotors are held in overhang by bearings located downstream not upstream of the rotor bodies in a flowing direction of a pumped fluid.
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Inventors:
Benoit baltic
Application Number:
JP2010526301A
Publication Date:
December 24, 2010
Filing Date:
September 26, 2008
Export Citation:
Assignee:
Alcatel-Lucent
International Classes:
F04C18/16; F04C25/02
Attorney, Agent or Firm:
Okabe
Masao Okabe
Nobuaki Kato
Asahi Shinmitsu
Katsumi Miyama
Masao Okabe
Nobuaki Kato
Asahi Shinmitsu
Katsumi Miyama