Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kazuaki Kurihara0
Yutaka Hirata0
Toshio Takahashi0
Nobusada Takahara0
Date of Patent
May 17, 2011
Patent Application Number
11566337
Date Filed
December 4, 2006
Patent Primary Examiner
Patent abstract
A first compression stage and a second compression stage being arranged at positions adjacent to each other. The first centrifugal impeller and the second centrifugal impeller are arranged in such an orientation that back sides of the first centrifugal impeller and the second centrifugal impeller face to each other. A connection flow path is formed in the first housing and the second housing for introducing the compressed fluid from the first compression stage into the second compression stage. An upstream portion of the connection flow path is formed integrally with the first housing, and a downstream portion of the connection flow path is formed integrally with the second housing.
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