GAS SHUTOFF VALVE UNIT

GAS SHUTOFF VALVE UNIT

PROBLEM TO BE SOLVED: To provide a gas shutoff valve unit can surely turn a valve element to a stop position. SOLUTION: In this gas shutoff valve unit 100, a drive control means 11a positively drives a motor 5 to turn a valve element from a predetermined starting position to a predetermined stop pos...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KITANO TETSUJI, TERANUMA TAKASHI, SASAZAKI KAZUSHIGE, TOMOTA KENGO, TAKAHASHI YUKA, KIMURA MITSUJI, ISHIZAKI SHIGETAKA, UEDA YOSUKE, OBATA SHIGEO, NISHI AKIFUMI
Format: Patent
Sprache:eng
Schlagworte:
ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a gas shutoff valve unit can surely turn a valve element to a stop position. SOLUTION: In this gas shutoff valve unit 100, a drive control means 11a positively drives a motor 5 to turn a valve element from a predetermined starting position to a predetermined stop position, and thereafter, when an abnormality determining means 11b detected that the valve element does not reach the predetermined stop position, a reset drive control means reversely drives the motor 5 to turn at a reset angle toward the predetermined starting position, and thereafter, the drive control means positively drives the motor 5 again to turn the valve element from a present position to the predetermined stop position. COPYRIGHT: (C)2010,JPO&INPIT