Rotor for an electric drive machine for driving a compressor, a turbine or a charger shaft of a turbocharger, and turbocharger comprising an electric drive machine and such a rotor

US11466610B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Hubert Szulczynski · Marbach am Neckar, DE
• Rene Schepp · Waiblingen, DE

Key dates

• Filing date: Oct 21, 2019
• Grant date: Oct 11, 2022
• Expiry date: Oct 21, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An exhaust-gas turbocharger having an electric drive unit for driving a compressor, a turbine, or a turbocharger shaft of the exhaust-gas turbocharger. The electric drive unit has a rotor and a stator. The rotor is equipped with a rotor body embodied around a rotation axis of the rotor. A receptacle for at least one permanent magnet is embodied on the rotor body. A permanent magnet is disposed in the receptacle of the rotor body. The rotor body is mountable using a threaded bushing on a turbocharger shaft of the exhaust-gas turbocharger. The rotor body has a further receptacle which extends in the direction of the rotation axis and in which the threaded bushing is disposed inside the rotor body. The further receptacle is disposed in the rotor body with an offset in the direction of the rotation axis relative to the receptacle.