Title:
VORTEX PUMP
Document Type and Number:
WIPO Patent Application WO/2017/090397
Kind Code:
A1
Abstract:
This vortex pump is provided with: a housing which is provided with an intake flow path, a discharge flow path, and an accommodation space which communicates with the intake flow path and the discharge flow path; and an impeller which is accommodated in the accommodation space, and which rotates around a rotational axis. The housing has, in the accommodation space, an internal flow path which extends along the outer circumference of the impeller. The cross-sectional area of the internal flow path along the entire length thereof is greater than the cross-sectional area of the intake flow path and the cross-sectional area of the discharge flow path.
Inventors:
NAKAMURA EIJI (JP)
Application Number:
PCT/JP2016/082584
Publication Date:
June 01, 2017
Filing Date:
November 02, 2016
Export Citation:
Assignee:
AISAN IND (JP)
International Classes:
F04D23/00; F02M25/08; F04D5/00
Foreign References:
| JP2002081392A | 2002-03-22 | |||
| JPH09209864A | 1997-08-12 | |||
| JPS4721202Y1 | 1972-07-14 | |||
| JPS39143Y1 | ||||
| JPS5151503U | 1976-04-19 | |||
| US20110052378A1 | 2011-03-03 |
Attorney, Agent or Firm:
KAI-U PATENT LAW FIRM (JP)
Download PDF: