Patent ID: 7516691
Filing Date: 2009-04-14
Classification: F15B,F16H

Abstract:
1. A hydraulic linear drive usable as a hydraulic transmission actuator, comprising a piston/cylinder unit having a housing in which an actuating piston system longitudinally displaceably arranged so as to define at least two pressure chambers which are actable upon by hydraulic oil via control conduits, having at least one piston rod connected with the actuating piston system, and a sealing element operatively arranged at the actuating piston system for sealing off the at least two pressure chambers from one another, wherein the actuating piston system comprises a two-piece construction of a first and a second piston part having facing faces between which the sealing element is arranged; wherein a sealing device carrier is provided for the sealing element and which is axially guided on one of the piston parts; and wherein the sealing device carrier engages on the face in the first piston part for providing the axial guiding.