Title:
加圧遠心ポンプ
Document Type and Number:
Japanese Patent JP4540379
Kind Code:
B2
Abstract:
A pressurizing centrifugal pump has a blade, which protrudes backwardly inclined in a radial direction from a blade plate and a boss portion and is provided with a blade forward inclination angle and a blade outer forward inclination angle. Thereby, the blade takes in fluid from a pressure chamber into a blade chamber, and discharges the fluid while preventing the fluid in the blade chamber from leaking and moving to a side. The pressurizing centrifugal pump has a drum-shaped case 4 provided with an inlet 2 and an outlet 3, wherein a pressure portion 16 is provided opposite to a blade 19 of an impeller 5, the pressure portion 16 including a pressure surface 36 that forms a pressure chamber 33 and a pressure partition wall 35. From a plain view, a blade surface 5a of the blade 19 is provided protruding from the blade plate 26 having a gentle blade forward inclination angle ¸. A blade outer surface 5b, which is an outer portion from a mid-portion of the blade surface 5a, has a bent shape having a blade outer forward inclination angle ±, which is steeper than the blade forward inclination angle ¸.
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Inventors:
Ryoichi Yonehara
Application Number:
JP2004102916A
Publication Date:
September 08, 2010
Filing Date:
March 31, 2004
Export Citation:
Assignee:
Yonehara Giken Co., Ltd.
Imax corporation
Imax corporation
International Classes:
F04D29/24; F04D31/00; F04D1/00; F04D5/00; F04D7/02; F04D29/42; F04D29/44
Domestic Patent References:
| JP200460470A | ||||
| JP200289477A | ||||
| JP2574653B2 |
Attorney, Agent or Firm:
Makoto Kono
Yoshiaki Nagata
Motoaki Nagata
Yoshiaki Nagata
Motoaki Nagata