Abstract: A submersible motor for driving a centrifugal pump. The motor includes a rotor space filled with a fluid and the rotor space on the pump side is sealed by way of a sealing formation penetrated by the motor shaft which carries the rotor of the motor. In the rotor space between the sealing formation and the rotor there is provided a stationary separating wall, letting through the motor shaft, for forming a smoothing space in front of the sealing formation.

Abstract: The object of the invention is to create an internal combustion engine, connected to two exhaust-gas turbochargers, with reduced flow losses and an improved efficiency which is particularly suitable for relatively high boosting. According to the invention this is achieved by virtue of the fact that in an apparatus in accordance with the preamble of claim 1, the two exhaust-gas turbochargers (1,1') are arranged offset sideways relative to one another. The diffuser outlets (5,5') of the radial turbines (2,2') are arranged point-symmetrically with respect to the center (8) of the central wall (6). The lateral spacing of the axes (9,9') of the radial turbines (2,2') from the wall (10,10') of the turbine outflow casing (3) on the outflow side (11,11') of the radial turbines (2,2') is designed so as to be greater than their lateral spacing from the other wall (12,12') in each case.

Abstract: A method for matching the radial turbines of turbochargers, to the respective internal combustion engine, includes managing with a relatively small expenditure of material and labor time and with low costs. In accordance with the method this is achieved by modifying exclusively gas outlet end components of the radial turbine (1). For this purpose, the vanes (5) of the rotor (6) are first shortened and the flow duct (7) between the hub (8) of the rotor (6) and the gas outlet flange (9) is then correspondingly narrowed. This takes place by the insertion of a different, correspondingly enlarged gas outlet flange (9). For this purpose, the gas outlet flange (9) is fastened to the gas inlet casing (2) so that it is easily releasable.

Abstract: An axial-flow turbine has at least one row of bowed guide vanes (7) and at least one row of rotor blades. The bowing of the guide vanes (7) over the vane height is selected at right angles to the chord and is directed towards the pressure side of the respectively adjacent guide vane in the peripheral direction. The guide vanes are tapered in their radial extent. Secondary losses, which occur due to the deflection of the boundary layers in the guide vanes, are reduced by this measure.