Title:
CENTRIFUGAL PUMP
Document Type and Number:
WIPO Patent Application WO/2016/158666
Kind Code:
A1
Abstract:
The present invention relates to a centrifugal pump for transferring a liquid which includes a fibrous material. The centrifugal pump is provided with: an impeller (1) provided with blades (2); and an impeller casing (5) for accommodating the impeller (1). The impeller casing (5) is provided with: a volute chamber (7); an intake port (3) and a discharge port (4) which communicate with the volute chamber (7); and a tongue part (10) which forms a winding start part of the volute chamber (7). The inner surface of the impeller casing (5) has, formed therein, a groove (18) which extends from the intake port (3) to the volute chamber (7). An intersection point (B) where end edges of the blades (2) intersect the groove (18) when viewed from the axial direction of the impeller (1) is positioned at the opposite side to the tongue part (10) with respect to the centre point of the impeller (1).
Inventors:
KAWAI MASAHITO (JP)
SAKACHO HIROMI (JP)
OBUCHI MASASHI (JP)
UCHIDA HIROSHI (JP)
ISONO MIHO (JP)
TOKAIRIN KENTA (JP)
SAKACHO HIROMI (JP)
OBUCHI MASASHI (JP)
UCHIDA HIROSHI (JP)
ISONO MIHO (JP)
TOKAIRIN KENTA (JP)
Application Number:
PCT/JP2016/059379
Publication Date:
October 06, 2016
Filing Date:
March 24, 2016
Export Citation:
Assignee:
EBARA CORP (JP)
International Classes:
F04D7/04; F04D29/70
Foreign References:
| JPH11201087A | 1999-07-27 | |||
| JPS5467303U | 1979-05-12 |
Other References:
See also references of EP 3276177A4
Attorney, Agent or Firm:
WATANABE, Isamu et al. (JP)
Isamu Watanabe (JP)
Isamu Watanabe (JP)
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