Title:
羽根車及びそれを備えた汚水処理用ポンプ
Document Type and Number:
Japanese Patent JP4713066
Kind Code:
B2
Abstract:
In an impeller 11, an inlet portion and an outlet portion are provided at one end side and the other end side in the axial direction, respectively. An inlet 29 is formed in the lower part of the inlet portion, and an outlet is formed in the side face of the outlet portion. The inlet portion and the outlet portion are partitioned by a flange portion 40. The impeller 11 includes a primary vane 36 and a secondary vane 38. The primary vane 36 defines a spiral primary channel 35 that connects the inlet 29 and the outlet. The secondary vane 38 is formed in a shape that a part of the outer periphery of the outlet portion is gouged inward so as to define a secondary channel 37 connected to the primary channel 35 and extending circumferentially around the outer periphery.
Inventors:
Yasuyuki Nishi
Takebe
Koichi Tamura
Akihiro Ando
Takebe
Koichi Tamura
Akihiro Ando
Application Number:
JP2003277163A
Publication Date:
June 29, 2011
Filing Date:
July 18, 2003
Export Citation:
Assignee:
ShinMaywa Industries,Ltd.
International Classes:
F04D1/04; F04D7/04; F04D29/22; F04D29/24
Domestic Patent References:
| JP285840B1 | ||||
| JP55160195A | ||||
| JP116496A | ||||
| JP5740691U |
Foreign References:
| FR1274289A |
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura
Daisuke Kawabe
Masanori Hasegawa
Tsuguya Iwashita
Koji Fukumoto
Ryo Maeda
Mawaki Hachizo
Yukichi Matsunaga
Kenji Kawakita
Shohei Okazawa
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura
Daisuke Kawabe
Masanori Hasegawa
Tsuguya Iwashita
Koji Fukumoto
Ryo Maeda
Mawaki Hachizo
Yukichi Matsunaga
Kenji Kawakita
Shohei Okazawa