VACUUM EXHAUST DEVICE

VACUUM EXHAUST DEVICE

PROBLEM TO BE SOLVED: To provide a vacuum exhaust device suppressing wasteful power consumption by reducing power voltage to be supplied to a motor after exhausting air in a vacuum tank in an atmospheric pressure to low vacuum range. SOLUTION: The vacuum exhaust device comprises a vacuum pump 3 for...

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Hauptverfasser: TANITSU YUTAKA, IZUMI TOMOHISA, SAKUMA TAKAYUKI
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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creator TANITSU YUTAKA
IZUMI TOMOHISA
SAKUMA TAKAYUKI
description PROBLEM TO BE SOLVED: To provide a vacuum exhaust device suppressing wasteful power consumption by reducing power voltage to be supplied to a motor after exhausting air in a vacuum tank in an atmospheric pressure to low vacuum range. SOLUTION: The vacuum exhaust device comprises a vacuum pump 3 for exhausting air in the vacuum tank 1 and the motor 8 for driving the vacuum pump 3, a vacuum meter 7 for detecting a degree of vacuum in the vacuum tank 1, and a power voltage controller 10 for changing the voltage of a commercial power source to be supplied to the motor 8 depending on pressure in the vacuum tank 1 detected by the vacuum meter 7. After the air in the vacuum tank 1 is exhausted in an atmospheric pressure to vacuum range with the vacuum pump 3 driven by the motor 8, the power voltage to be supplied to the motor 8 is reduced several ten percent or so by the control of the power voltage controller 10. COPYRIGHT: (C)2007,JPO&INPIT
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subjects BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
title VACUUM EXHAUST DEVICE
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