Abstract: A fluid flow machine of the radial type of construction with adjustable guide blades in a radially extending annular channel of the fluid flow housing. The bearing support of the guide blades takes place in a guide blade carrier that represents a one-piece bearing cage with lateral flow surfaces for the guide blades. The guide blade carrier is composed of two bearing rings which are combined into one structural unit by way of fixed connecting webs disposed in the flow path. In this structural unit, the space for the guide blades can be machined very accurately in its axial width to maintain the tolerances which means small gap losses and correspondingly favorable efficiencies. Since the guide blade carrier is so arranged in the housing that expansions of the housing by reason of heat or pressure warping are not transmitted, the gap tolerances can be selected correspondingly still smaller, and the efficiency can be still further improved.

Abstract: A compressor or a turbine of the radial type of construction as is used, for example, for exhaust gas turbocharging of an internal combustion engine. Adjustable guide wheels are coordinated to a radial turbine or compressor rotor in a radially traversed annular space of the fluid flow housing, whose guide blades are constructed in each case in one piece with the bearing pins and the actuating levers projecting at an angle from the bearing pins. For facilitating assembly of such guide blades in bearing apertures of a housing wall of the fluid flow housing, the housing wall is divided along the center of the bearing bores. As a result thereof, the bearing bores are radially accessible for the insertion of the bearing pins. With this construction of housing and guide wheel, the assembly expenditure is considerably smaller than with multipartite construction of the blades. At the same time, the operating reliability of the fluid flow machine is increased with the few detachable connections.

Abstract: A reciprocating internal combustion engine with supercharging by several exhaust gas turbochargers. One or more housings are arranged on the internal combustion engine with the exhaust gas turbochargers being adapted to be mounted in the walls of such housing or housings in such a way that the turbines of the exhaust gas turbochargers and exhaust gas conduits are located in an interior of the housing or housings; whereas, the compressors of the exhaust gas turbochargers, as well as the supercharger air conduits with the supercharger air coolers are located exteriorly of the housing or housings.

Abstract: An exhaust gas turbocharger for internal combustion engines with a turbine wheel traversed by the exhaust gases radially from the outside toward the inside and with a water-cooled housing; a ring-shaped insert member of heat-resistant steel which is centered in the housing is arranged radially about the turbine wheel between the turbine wheel and the housing, which forms the outer fixed turbine wheel cover and takes over the guidance of the exhaust gases both during the entry and discharge out of the turbine wheel.