Flow control valve having a motion conversion device

A motion conversion device is disclosed for converting motion in one direction into motion in another direction. The motion conversion device may include a single-acting cylinder hydraulically or pneumatically coupled to a double-acting cylinder such that movement of the single-acting cylinder along...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Hoff Elliot James, Gulleen Matthew Lawrence
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A motion conversion device is disclosed for converting motion in one direction into motion in another direction. The motion conversion device may include a single-acting cylinder hydraulically or pneumatically coupled to a double-acting cylinder such that movement of the single-acting cylinder along an axis causes movement of the double-acting cylinder along a non-parallel axis. The single-acting cylinder may be mechanically coupled to another single-acting cylinder such that movement of one of the single-acting cylinders in a direction causes movement of the other one of the single-acting cylinders in an opposite direction. In this way, the single-acting cylinders may cooperate to provide reciprocal motion of the double-acting cylinder. Also disclosed is a valve incorporating a motion conversion device for the purpose of moving a closure member between an open position and a closed position. Furthermore, a method for operating a valve closure member with a motion conversion device is disclosed.