METERING PUMP DEVICE

PROBLEM TO BE SOLVED: To maintain high accuracy of a metering pump without revising a correction coefficient when changing a target flow rate or when changing flow rate time. SOLUTION: A pump flow rate control means for controlling a rotation positive displacement pump 1 having a stator 3 and a roto...

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Bibliographische Detailangaben
Hauptverfasser:	YUMINO AKITOSHI, KUSHI TATSUYA, FUKUMARU KENICHIRO, MIYAZAKI YASUNORI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To maintain high accuracy of a metering pump without revising a correction coefficient when changing a target flow rate or when changing flow rate time. SOLUTION: A pump flow rate control means for controlling a rotation positive displacement pump 1 having a stator 3 and a rotor 4 to a predetermined flow rate includes a storage means 23 for storing relational data between stator temperature and a flow rate per one rotation of the rotor and with a stator temperature detection means. The relational data corresponding to the stator temperature detected by the stator temperature detection means is read from the storage means, and rotational frequency of the rotor is controlled to rotor rotational frequency corresponding to a target flow rate per time. COPYRIGHT: (C)2010,JPO&INPIT