IMPELLER AND PUMP EQUIPPED WITH SAME

Title:

IMPELLER AND PUMP EQUIPPED WITH SAME

Document Type and Number:

WIPO Patent Application WO/2022/054403

Kind Code:

A1

Abstract:

This impeller is provided to one end side, in the axial direction, of a cylindrical rotor body, and constitutes with the rotor body a rotor together. The impeller comprises: an impeller base which has a blade support surface provide to the one end side, in the axial direction, of the rotor body; a plurality of blades provided to the blade support surface of the impeller base so as to extend in a curved shape reversely to the rotation direction of the rotor from the inside to the outside, in the radial direction, of the blade support surface; and an annular plate-like front shroud that is provided to portions of the plurality of blades axially opposite to the impeller base and that covers the outer-circumferential-side parts of the blades and also has a hole formed at the center so as to expose the inner-circumferential-side parts of the blades. The inner diameter of the hole in the front shroud is larger than the outer diameter of the impeller base.

Inventors:

ONIDUKA TOSHIKI (JP)
KOREEDA SHINICHIROU (JP)
KAMEI TOSHIAKI (JP)
SAITOU HIKARU (JP)
UENO MASAYA (JP)
SEKI TAKUYA (JP)

Application Number:

PCT/JP2021/026642

Publication Date:

March 17, 2022

Filing Date:

July 15, 2021

Export Citation:

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Assignee:

IWAKI CO LTD (JP)

International Classes:

F04D29/048; F04D29/22

Domestic Patent References:

WO2002099283A1

2002-12-12

Foreign References:

JPH09268994A	1997-10-14
JPS4899902U	1973-11-26
JP2019094832A	2019-06-20
JP2013024208A	2013-02-04
JPH05312191A	1993-11-22
JP2007332839A	2007-12-27
JP2013213413A	2013-10-17
JPH0626491A	1994-02-01

Attorney, Agent or Firm:

KISARAGI ASSOCIATES (JP)

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