PUMP DEVICE

PROBLEM TO BE SOLVED: To provide a pump device with high reliability which is provided with readiness of a microcomputer-type pump with consumed power equivalent to that of a mechanical-switch-type pump. SOLUTION: Power supply to a pump control circuit 11b is performed, in principle, only when a wat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KAWAHARA SHIGEMI, HONDA TOMOTAKA, OZAWA TORU, IGARASHI MAKOTO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING HEATING LIGHTING MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS PHYSICS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS TESTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a pump device with high reliability which is provided with readiness of a microcomputer-type pump with consumed power equivalent to that of a mechanical-switch-type pump. SOLUTION: Power supply to a pump control circuit 11b is performed, in principle, only when a water plug opens, that is really power supply is required (where, the power supply is continued until a given elapsed time even after the water plug is closed). On the assumption of power supply to the control circuit 11b, power supply from a direct current power source to a pressure detection means 7 used for driving and control of a pump motor 13b is periodically controlled according to times when a microcomputer 11d takes in pressure data.