Exhaust-gas turbocharger

摘要

An exhaust-gas turbocharger with a bearing housing which receives a static bearing bush for a rotor shaft. A lug supported in the bearing housing engages the bearing bush and prevents the bearing bush from rotating but avoids a restriction of the freedom of movement of the bearing bush in the axial and radial directions.

主权项

1. An exhaust-gas turbocharger (1) including:
a compressor (2) having a compressor wheel (3) in a compressor housing (4); a turbine (5) which has a turbine wheel (6) in a turbine housing (7); a rotor shaft (10) connecting the compressor wheel (3) and turbine wheel (6); a bearing bush (9) for the rotor shaft (10), the bearing bush (9) having at least two radial grooves (16, 17); a bearing housing (8) having a compressor side and a turbine side, and which receives the bearing bush (9) for the rotor shaft (10), and a Ú-shaped bearing bush rotation prevention means (12) comprising at least one lug (13, 14, 15) supported in the bearing housing (8) and further comprising a receiving recess (20) delimited by two wall regions defining between them an opening whereby the U-shaped bearing bush rotation prevention means (12) can be inserted radially into the radial grooves of the bearing bush (9), which wall regions are arranged opposite one another and which delimit the receiving recess, which U-shaped bearing bush rotation prevention means (12) engages radially into at least one of said two radial grooves (16, 17) of the bearing bush (9), wherein the radial grooves (16, 17) are arranged diametrically oppositely on an outer circumferential region (18) of the bearing bush (9).