CONTROL VALVE

A control valve includes a casing, a valve body, and a seal cylinder member. The casing has an inlet and an outlet. The valve body is rotatably disposed inside the casing, and has a circumferential wall portion formed with a valve hole providing communication between the inside and the outside. One...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Ozeki, 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:	A control valve includes a casing, a valve body, and a seal cylinder member. The casing has an inlet and an outlet. The valve body is rotatably disposed inside the casing, and has a circumferential wall portion formed with a valve hole providing communication between the inside and the outside. One end portion of the seal cylinder member communicates with the outlet, and a valve sliding contact surface is provided at the other end portion. A flow rate control groove having a bottom surface which is recessed with respect to the outer circumferential surface of the circumferential wall portion and has one end portion continuous with the valve hole is provided on at least one of a front side and a rear side of an edge portion of the valve hole in the circumferential wall portion in a rotating direction of the valve body.