Abstract: A gas turbine containing an additional combustion gas compressor and a gearing drive which, on the one hand, is rotatably connected by means of a rigid coupling and an axial bearing with the gas turbine and, on the other hand, is rotatably connected by means of a further rigid coupling with the combustion gas compressor. Furthermore, the gearing drive serves to drive a generator by means of a power take-off shaft. The gears of the gearing drive possess helical teeth. For thrust compensation purposes the drive gear of the gearing drive is provided with pressure plates, and the helical teeth of the gears are designed such that a force acting upon the pressure plates and resulting from the thrust of the combustion gas compressor is reduced by the axial component of the helical teeth.

Abstract: A steam power plant containing a pressure-fired steam generator with fluidized bed firing and a loading or charging set or unit driven by the flue gases of the firing equipment. The boiler heating surfaces are arranged exclusively outside of the vortex or fluidized layer of the fluidized bed. In the steam generator there are provided by-pass flow regulating valves for controlling and regulating the steam output. For this purpose and for cooling the fluidized or vortex layer there is additionally provided a flue gas by-pass or shunt line containing at least one by-pass regulation valve, a flue gas cooler and a ventilator.

Abstract: A method and apparatus for cooling the hot gas casing of a gas turbine power plant is disclosed. The apparatus includes a shell which is spaced from but which encompasses the hot gas casing so as to form an air channel about the casing. A compressor provides a supply of cooling air which flows into the air channel through openings in the shell, and which air absorbs heat from the hot gas casing as it flows through the air channel.