Title:
VORTEX PUMP
Document Type and Number:
WIPO Patent Application WO/2021/187217
Kind Code:
A1
Abstract:
This vortex pump (1) is provided with: an impeller (7); and a pump casing (3) in which the impeller (7) is rotatably housed and which has formed therein a discharge outlet (5) for discharging liquid that has been drawn in by rotation of the impeller (7). The pump casing (3) is provided with a vortex chamber (11) and an air-liquid separation chamber (14). The vortex chamber (11) houses the impeller (7) therein, and is disposed lower than the discharge outlet (5) under installed condition. The air-liquid separation chamber (14) guides liquid from the vortex chamber (11) to the discharge outlet (5), and removes air bubbles (25) in the liquid. In addition, a ceiling surface (23) that forms the air-liquid separation chamber (14) and that is contiguous to the discharge outlet (5) has a slope with the discharge outlet (5) disposed at the top thereof.
Inventors:
TANAKA YUKI
Application Number:
PCT/JP2021/009129
Publication Date:
September 23, 2021
Filing Date:
March 09, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F04D9/02; F04D5/00
Foreign References:
| JP2019163715A | 2019-09-26 | |||
| JP2003328975A | 2003-11-19 | |||
| JPS48104103A | 1973-12-27 | |||
| JPH11257271A | 1999-09-21 | |||
| JPS4813905A | ||||
| JPS354345Y1 | 1960-03-09 | |||
| JPS3115568Y1 | 1956-09-25 | |||
| JP2017210930A | 2017-11-30 | |||
| JPH07167084A | 1995-07-04 | |||
| JPS49135202A | 1974-12-26 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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