ROTARY ACTUATOR

A rotary actuator (32), including a manifold block (34) and a rotor assembly (36) that includes a rotor shaft (46) and a plurality of arcuate pistons (60) attached to the rotor shaft, each arcuate piston curving at a set radial distance from the rotor shaft, and each piston attached to the rotor sha...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LISENKO, Kim R, STANDLEY, John A, ZAZYNSKI, Timothy Paul
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AEROPLANES AIRCRAFT AVIATION BLASTING COSMONAUTICS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HELICOPTERS HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A rotary actuator (32), including a manifold block (34) and a rotor assembly (36) that includes a rotor shaft (46) and a plurality of arcuate pistons (60) attached to the rotor shaft, each arcuate piston curving at a set radial distance from the rotor shaft, and each piston attached to the rotor shaft via a crank arm (58). A pressure chamber assembly (64) coupled to the manifold block defines a plurality of piston pressure chambers (66) that receive and at least partially enclose each arcuate piston, including a plurality of gland seals (72) disposed adjacent the entrance of each piston pressure chamber to create a seal between the inner surface (70) of the pressure chamber and the outer surface (68) of the arcuate piston. Each gland seal includes an inner seal (88) that engages the piston surface of the arcuate piston, and plural outer seals (901) that engage the inner surface of the piston pressure chamber, forming a hydraulic seal.