US 12,384,447 B2
Electrically driven rack and pinion steering system of a motor vehicle
Eduard Span, Cologne (DE); Yavuz Demir, Lünen (DE); Rainer Engel, Krefeld (DE); and Heinz-Dieter Heitzer, Heinsberg (DE)
Assigned to ZF Automotive Germany GmbH, Alfdorf (DE)
Filed by ZF Automotive Germany GmbH, Alfdorf (DE)
Filed on Aug. 30, 2022, as Appl. No. 17/898,793.
Claims priority of application No. 102021209996 .3 (DE), filed on Sep. 9, 2021.
Prior Publication US 2023/0074605 A1, Mar. 9, 2023
Int. Cl. B62D 3/12 (2006.01); B62D 5/04 (2006.01)
CPC B62D 3/12 (2013.01) [B62D 5/0457 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An electrically driven rack and pinion steering system of a motor vehicle with an axially displaceably mounted rack which transmits a steering movement for steered wheels of the motor vehicle, comprising an electric drive which provides a steering force and interacts with the rack, a housing which receives the rack and a drive element of the electric drive, wherein the drive element is in engagement with a toothing system of the rack, a bearing assembly being 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 an inner shell face of which an inner contact seal is arranged, the contact seals sealing the housing with respect to the rack; wherein the carrier cylinder is arranged such that it can be moved radially with respect to the housing.