Title:
遠心ポンプ用羽根車及び遠心ポンプ
Document Type and Number:
Japanese Patent JP5118951
Kind Code:
B2
Abstract:
An example impeller includes: an impeller body in which an internal channel is formed, the internal channel extending inside the impeller body in a direction of a rotation axis spirally about the rotation axis to connect an inlet and an outlet; and at least one centrifugal vane provided in the impeller body. The internal channel including the inlet and the outlet has a predetermined passage diameter. An external channel is formed so as to continue to the outlet and go around the circumferential surface of the impeller body, the external channel being defined by the centrifugal vane and being recessed inward in the radial direction from the circumferential surface of the impeller body. At least a part in a flow direction of the external channel has a channel width in the direction of the rotation axis smaller than the width of the outlet.
Inventors:
Yasuhide Okazaki
Akihiro Ando
Junya Enomoto
Shin Funasaka
Akimasa Okizoe
Motoi Tarui Exhibition
Yasuyuki Nishi
Akihiro Ando
Junya Enomoto
Shin Funasaka
Akimasa Okizoe
Motoi Tarui Exhibition
Yasuyuki Nishi
Application Number:
JP2007320154A
Publication Date:
January 16, 2013
Filing Date:
December 11, 2007
Export Citation:
Assignee:
ShinMaywa Industries,Ltd.
International Classes:
F04D7/04; F04D29/24
Domestic Patent References:
| JP60261993A | ||||
| JP49013522B1 | ||||
| JP2006527804A | ||||
| JP55001946U | ||||
| JP53127303U | ||||
| JP2006291917A |
Attorney, Agent or Firm:
Maeda patent office
Hiroshi Maeda
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura
Hiroshi Maeda
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura