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Title:
PUMP SYSTEM OPERATION METHOD, PUMP SYSTEM, AND PUMP REPLACEMENT METHOD FOR PUMP SYSTEM
Document Type and Number:
Japanese Patent JP2016160769
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pump system that can inhibit air suction of a pump due to generation of swirl and discharge a large amount of water when a water level is high by a low-cost and simple configuration and method.SOLUTION: In the pump system, a return water pipe (30) is provided with a return water valve (31) and a valve control part (40) is provided to control the return water valve (31) according to a water level in the suction water tank (2).SELECTED DRAWING: Figure 1

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Inventors:
IWAMI HIROYUKI
WADA TSUGUYOSHI
Application Number:
JP2015037362A
Publication Date:
September 05, 2016
Filing Date:
February 26, 2015
Export Citation:
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Assignee:
KUBOTA KK
International Classes:
F04D15/00; F04D13/00; F04D29/66
Domestic Patent References:
JP2013024206A2013-02-04
JPH05172084A1993-07-09
JP2002005069A2002-01-09
JP2011256810A2011-12-22
Attorney, Agent or Firm:
Harakenzo world patent & trademark