Reversed actuator with minimal leak potential

An apparatus is provided for a valve actuator assembly (16) comprising an actuator housing (32), a piston (34), and a spring (36). The piston (34) is disposed within the actuator housing (32). The piston (34) is configured to couple to a valve element (14), and includes an inner cylindrical section...

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Bibliographische Detailangaben
Hauptverfasser:	DORSTE, CRAIG T, KESNER, CHARLES E, GUTIERREZ, JAVIER, ABEL, MICAH S
Format:	Patent
Sprache:	eng ; fre ; ger
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:	An apparatus is provided for a valve actuator assembly (16) comprising an actuator housing (32), a piston (34), and a spring (36). The piston (34) is disposed within the actuator housing (32). The piston (34) is configured to couple to a valve element (14), and includes an inner cylindrical section (46) and an outer cylindrical section (48). The outer cylindrical section (48) of the piston (34) is spaced apart from the inner cylindrical section (46) to define a recess (50). The piston (34) is further configured to move within the actuator housing (32) in a first direction and a second direction, to thereby move the valve element (14) toward a first position and a second position, respectively. The spring (36) is disposed within the actuator housing (32), and is configured to supply a bias force that urges the piston (34) to move in the first direction. The spring (36) is at least partially disposed within the recess (50), and at least partially surrounding the inner cylindrical section (46).