Title:
FLOW VALVE CONTROL DEVICE AND FLOW VALVE MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2005201280
Kind Code:
A
Abstract:
To solve the problem wherein it is impossible to process accurate initialization of a stepper motor type flow valve.
A stepper motor is driven with a drive signal of frequency prohibiting step-out in an unloaded condition but allowing step-out when abutting on the other end of a valve stem. After the step-out of the stepper motor, initialization is processed.
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Inventors:
MIYOSHI SOTSUO
OKADA HIDETOSHI
KAKO HAJIME
OUCHI YASUSHI
KAWAMURA SATOSHI
MIYAKE TOSHIHIKO
OKADA HIDETOSHI
KAKO HAJIME
OUCHI YASUSHI
KAWAMURA SATOSHI
MIYAKE TOSHIHIKO
Application Number:
JP2005026590A
Publication Date:
July 28, 2005
Filing Date:
February 02, 2005
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F02M25/07; F02D21/08; F16K31/04; H02P8/08; (IPC1-7): F02M25/07; F02D21/08; H02P8/08
Attorney, Agent or Firm:
Shogo Takahashi
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
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