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Patent Searching and Data


Title:
VORTEX PUMP
Document Type and Number:
WIPO Patent Application WO/2018/168519
Kind Code:
A1
Abstract:
Provided is a vortex pump, wherein: a vortex chamber includes an inlet port (12), a water passage (13), and an outlet port (14); a fluid which is suctioned from a suction port by the rotation of an impeller passes the inlet port (12), the water passage (13), and the outlet port (14), in this order, and is discharged from a discharge port; and the water passage (13) includes, in order from the closest to a rotating axis (4c), a first wall (13a), a middle wall (13b), and a second wall (13c); the second wall (13c) includes a second wall inner surface (13c1) and a second wall outer surface (13c2) and is connected to the first wall (13a) via the middle wall (13b), wherein; the distance between the first wall (13a) and the second wall inner surface (13c1) is the width (D) of the water passage; and the width (D) of the water passage decreases from the inlet port (12) toward the outlet port (14).

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Inventors:
SAHASI Takahiro
MORIOKA Masamitsu
Application Number:
JP2018/007977
Publication Date:
September 20, 2018
Filing Date:
March 02, 2018
Export Citation:
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Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (1-61, Shiromi 2-chome Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
International Classes:
F04D5/00; F04D9/02
Foreign References:
JPS56167083A1981-12-22
JP2014190220A2014-10-06
JPS59170489A1984-09-26
JPH10318072A1998-12-02
JPS3823271Y1
Attorney, Agent or Firm:
KAMATA Kenji et al. (1-61, Shiromi 2-chome, Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
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