Abstract: A cylinder head assembly of an internal combustion engine includes valves arranged in the cylinder head. For the purpose of driving each of the valves, a respective push rod is provided which is driven by a cam shaft and carries a rocker which is mounted on a rocker shaft. The rocker shaft is held in individual rocker brackets in such a way as to accommodate pivotable movement of the rockers about the said shaft. In order to obtain a rocker bracket which is easy to preproduce and requires virtually no further machining for installation, each rocker bracket has, at its upper end, a trough-shaped depression for the purpose of accommodating the rocker shaft.

Abstract: A gas turbine with a turbine housing which includes at least one regenerative chamber for the accommodation of a regenerative heat-exchanger adapted to be set into rotation and closed against the outside by a housing cover whereby the housing separating surface is adapted to be brought into abutment with a corresponding cover separating surface of the cover, and in which at least one sliding seal adapted to be brought into sliding contact with the heat-exchanger is arranged in the chamber and is secured at one of two mutually elastic fastening members of a mounting means, whose other fastening member is anchored at a chamber wall of the turbine housing; the housing separating surface is thereby located in a plane at least approximately perpendicular to the axis of rotation, while the sliding seal with an unstressed mounting means is disposed recessed with respect to the housing separating surface in an assembly position.