Patent ID: 8584632

Claim:
A valve train device for switching a lift of gas exchange valves of an internal combustion engine comprising: a camshaft; a cam group including at least two cams disposed on the camshaft; at least one lever mounted axially displaceably relative to the camshaft and in contact with one of the at least two cams and includes an actuation region for a direct or indirect actuation of at least one gas exchange valve; and an adjustment unit operatively connected to the lever so as to displace the lever and including: at least one rotatable adjustment shaft, at least one sleeve having at least one guide track mounted on the shaft non-rotationally and axially displaceably, an engagement element fixed to a housing and engaging permanently in the at least one guide track and supporting the at least one sleeve with respect to the housing, and a further engagement element offset radially along the guide track with respect to the engagement element and engaging permanently in the at least one guide track and connected rigidly to the lever.