Electrically driven rack and pinion steering system of a motor vehicle

US12384447B2 · kind B2 · utility

Assignee

• ZF Automotive Germany GmbH · DE

Inventors

• Eduard Span · Cologne, DE
• Yavuz Demir · L Atkinson Lane, DE
• Rainer Engel · Krefeld, DE
• Heinz-Dieter Heitzer · Heinsberg, DE

Key dates

• Filing date: Aug 30, 2022
• Grant date: Aug 12, 2025
• Expiry date: Aug 31, 2043

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H55/28
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An electrically driven rack and pinion steering system of a motor vehicle has an axially displaceably mounted rack which transmits a steering movement for steered wheels of the motor vehicle, has an electric drive which provides a steering force and interacts with the rack, and has a housing which receives the rack and a drive element of the drive. The drive element is in engagement with a toothing system of the rack. A bearing assembly is arranged on a section of the rack without a toothing system axially on each side of the drive element, with a carrier cylinder, on the outer shell face of which an outer contact seal is arranged and on the inner shell face of which an inner contact seal is arranged, the contact seals sealing the housing with respect to the rack.