Title:
ポンプ装置
Document Type and Number:
Japanese Patent JP7352630
Kind Code:
B2
Abstract:
A pump device includes an impeller and a housing that houses the impeller in a rotatable manner. The impeller includes a fin (vane) unit and a movable sleeve. The housing includes a fixed sleeve that houses the movable sleeve. A first gap is formed between an inner periphery of the movable sleeve and an opposing surface that faces the inner periphery. Since the inner periphery and the opposing surface are inclined relative to an axis of the impeller, the first gap is increased when the impeller ascends with rotation of the impeller.
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Inventors:
Takehisa Mori
Application Number:
JP2021527364A
Publication Date:
September 28, 2023
Filing Date:
March 13, 2020
Export Citation:
Assignee:
Terumo Corporation
International Classes:
F04D13/06; F04D7/04; F04D13/02
Domestic Patent References:
JP2013160136A | ||||
JP3151979A | ||||
JP2002315824A |
Foreign References:
WO2019044738A1 | ||||
US20110238172 |
Attorney, Agent or Firm:
Takehiro Chiba
Toshiyuki Miyadera
Takayuki Chima
Yasuharu Nakasone
Shiro Sakai
Tosuke Sekiguchi
Toshiyuki Miyadera
Takayuki Chima
Yasuharu Nakasone
Shiro Sakai
Tosuke Sekiguchi