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Patent Searching and Data


Title:
輪切形多段ポンプ
Document Type and Number:
Japanese Patent JP5727881
Kind Code:
B2
Abstract:
The invention provides a multi-stage pump with improved liquid conveying performance. The multi-stage pump comprises a rotating shaft (1), multiple impellers (2) fixed on the rotating shaft (1) and a pump case (3) accommodating the multiple impellers (2). The pump case (3) has a suction case (10), a discharge case (30) and an intermediate case (50). A suction volute (20) connected on a suction flow path (11a) is formed on the suction case (10) and is extended from the suction flow path (11a) to a liquid inlet of the primary impeller (2).

Inventors:
Ichiki Isamu
Application Number:
JP2011145228A
Publication Date:
June 03, 2015
Filing Date:
June 30, 2011
Export Citation:
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Assignee:
Ebara Corporation
International Classes:
F04D1/08; F04D15/00; F04D29/44
Domestic Patent References:
JP10220396A
JP4273097A
JP2000205165A
JP2001193682A
JP2005042650A
Attorney, Agent or Firm:
Isamu Watanabe
Ryoji Kosugi
Tetsuya Hirosawa