Continental Automotive Gmbh

Cpt Group Gmbh

Guenter Muench

Uemit Dilalan

Martin Thomas

Christian Roemer

Alexander Waas

Ulrike Albuzat

Bearing bushings which are exposed to highly elevated temperatures during operation, corresponding high-temperature-resistant bearing bushings and exhaust-gas turbochargers having at least one such bearing bushing, include an iron material having a material composition which, apart from iron, has at least carbon, silicon, manganese, nickel, chromium, molybdenum and tungsten alloy constituents in certain amounts. This material composition ensures sufficient temperature resistance and self-lubricating properties with simultaneously good machining properties and a moderate price.

Iron material for high-temperature-resistant bearing bushings, bearing bushing made of said material, and turbocharger having such a bearing bushing

A wastegate valve includes a wastegate flap and a wastegate spindle, in which the wastegate flap and the wastegate spindle are constituent parts of a single, unipartite molded body. The molded body furthermore has a connecting arm which is disposed between the wastegate flap and the wastegate spindle and which has a plasticization region. A method for installing an exhaust-gas turbocharger wastegate valve of this type into a turbine housing which has a wastegate duct, is also provided.

Wastegate valve and method for installing a wastegate valve into the turbine housing of an exhaust-gas turbocharger

A turbine rotor for an exhaust gas turbine has a turbine rotor wheel made of a highly heat-resistant metal alloy and a rotor shaft made of steel. A rotor wheel hub and a rotor shaft end are connected to each other in a metallurgical bond by way of a solder connection. The rotor shaft end and/or the rotor wheel hub is formed with a central recess, which acts as a thermal choke. A closing plug is arranged in the respective recess, forming a closed cavity with the recess and closing off the recess toward the respective end face. The solder connection is formed between the end faces of the rotor wheel hub and the rotor shaft, between the closing plug and the rotor wheel hub, and between the closing plug and the rotor shaft.

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Carlsberg, Germany

Guenter Muench