Title:
CENTRIFUGAL PUMP
Document Type and Number:
Japanese Patent JP2017172500
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a centrifugal pump capable of improving efficiency.SOLUTION: In a centrifugal pump, an impeller is disposed in the inside of a pump case, which includes a floor portion having an attaching hole to which a rotary shaft is fixed at its axis center, an umbrella portion 24 provided with a fluid introducing hole 24a at its axis center and provided so as to oppose to the floor portion in an axial direction, and a flow path structure portion provided between the floor portion and the umbrella portion 24. On an opposite surface of the umbrella portion 24 to the pump case, groove portions 31 intersecting a circumferential direction are provided in parallel in the circumferential direction, when viewed from the axial direction.SELECTED DRAWING: Figure 3
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Inventors:
OKUSE ATSUSHI
Application Number:
JP2016060533A
Publication Date:
September 28, 2017
Filing Date:
March 24, 2016
Export Citation:
Assignee:
ASMO CO LTD
International Classes:
F04D29/16; F04D29/22; F04D29/28
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda
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