Title:
SUBMERSIBLE PUMP AND SUBMERSIBLE PUMP SYSTEM USING THE SAME
Document Type and Number:
Japanese Patent JP2018178975
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a submersible pump that further effectively cools an electric motor in a submersible pump to enable a long term operation in air at a low-water level which brings the pump into a heat-up state.SOLUTION: A submersible pump includes: an impeller; a pump casing supporting the impeller and having a suction port and a discharge port for water; and an electric motor for driving the impeller. The electric motor includes a housing and an end bracket, where a water injection cooling pipe is disposed so as to pass through the electric motor while penetrating an end bracket.SELECTED DRAWING: Figure 2
Inventors:
NAGASHIMA YUSUKE
Application Number:
JP2017084626A
Publication Date:
November 15, 2018
Filing Date:
April 21, 2017
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD
International Classes:
F04D13/08; F04D15/00; F04D29/58; H02K7/14; H02K9/19
Domestic Patent References:
JPS56162295A | 1981-12-14 | |||
JPS61118595A | 1986-06-05 | |||
JP2003074490A | 2003-03-12 | |||
JPH09250487A | 1997-09-22 |
Attorney, Agent or Firm:
Aoritsu patent business corporation