Title:
LIQUID LEVEL CONTROLLING METHOD
Document Type and Number:
Japanese Patent JP3599790
Kind Code:
B2
Abstract:
PURPOSE: To control the number of revolutions of a liquid supply pump while using simple liquid level detecting means for outputting an ON/OFF signal, to prolong the life of an apparatus by reducing the number of times of ON and OFF of the pump and to enhance the controllability by decreasing the disorder of the liquid level.
CONSTITUTION: A controller 32 calculates the moving average value M of a liquid level 42 on the basis of the ON/OFF signal output from liquid level detecting means 33. A frequency converter 34 converts the frequency of a commercial power source on the basis of the value M, and the revolution of an absorbing liquid pump 16 is controlled.
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Inventors:
Hideki Uchida
Masayuki Daino
Masayuki Daino
Application Number:
JP19631794A
Publication Date:
December 08, 2004
Filing Date:
July 29, 1994
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
F25B15/00; G05D9/12; (IPC1-7): G05D9/12; F25B15/00
Domestic Patent References:
| JP6129728A | ||||
| JP5118022A | ||||
| JP6201211A | ||||
| JP1280809A |
Attorney, Agent or Firm:
Teruo Akimoto