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Title
Stellantrieb und Verfahren zum Entwärmen eines in einem Stellantrieb mit einem Stellglied eingehausten Festkörperaktors
Date Issued
2014
Author(s)
Patent No
102012014892
Abstract
The invention relates to an actuating drive for deflecting an actuating element (15) by means of a solid body actuator (2) which, when an electrical voltage or an alternating magnetic field is changed, experiences a length change, wherein a housing (1) encloses the solid body actuator and, together with the latter, delimits an interspace (13) in a fluid-tight manner. Furthermore, the solid body actuator has a hollow duct (6), the first end of which is connected to a first hollow conduit (20) passing through the housing, and the other end of which opens into the interspace. The interspace is additionally connected in a fluid-tight manner to a second hollow conduit (21) passing through the housing.
Language
de
Patenprio
DE 102012014892 A1: 20120727