Actuating apparatus for adjusting a movable element,...

Details Actuating apparatus for adjusting a movable element,... Actuating apparatus for adjusting a movable element,...

F - Mech Eng,Light,Heat,Weapons

16

K

236/17, 341/32

F16K 31/126 (2006.01) F03G 7/06 (2006.01) G05D 23/20 (2006.01)

Patent

CA 1123404

ABSTRACT OF THE DISCLOSURE Actuating apparatus for adjusting a movable element, particularly the closure member of a vavle The invention relates to an actuating apparatus for adjusting a movable element, particularly the closure member of a valve, comprising a work chamber having an expansion medium, heating or cooling means supply- ing heat to or withdrawing it from the medium, a feedback temperature sensor, and a wall section which is displaceable by the medium, is biassed by a counter-force and adjusts the movable element, and comprising a control unit which supplies the heating or cooling means with current in response to the fed back temperature and at least one further function such as desired value, guide quantity or the like.

314720

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