PUMP DEVICE AND LIQUID CIRCULATION DEVICE EQUIPPED THEREWITH

PUMP DEVICE AND LIQUID CIRCULATION DEVICE EQUIPPED THEREWITH

PROBLEM TO BE SOLVED: To simply perform pump output adjustment corresponding to piping resistance when the piping resistance is known.SOLUTION: The pump device is installed at a midway part in the circulation passage having a predetermined piping resistance for circulating liquid. The pump device in...

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Hauptverfasser: SHUKURI YOICHI, UEDA HIDETOSHI
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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creator SHUKURI YOICHI
UEDA HIDETOSHI
description PROBLEM TO BE SOLVED: To simply perform pump output adjustment corresponding to piping resistance when the piping resistance is known.SOLUTION: The pump device is installed at a midway part in the circulation passage having a predetermined piping resistance for circulating liquid. The pump device includes a motor control unit 3 for performing PWM control of the operation of a motor 4 for driving the pump, a piping resistance detecting unit 1 for detecting the piping resistance in the circulation passage, and a duty ratio instruction unit 2 having a duty ratio set in advance corresponding to a plurality of specified piping resistance for instructing and outputting the duty ratio corresponding to the piping resistance detected by the piping resistance detecting unit. The motor control unit 3 drives the motor at the duty ratio instructed by the duty ratio instruction unit 2.
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subjects BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
title PUMP DEVICE AND LIQUID CIRCULATION DEVICE EQUIPPED THEREWITH
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