HYDROSTATIC DRIVE FOR A STEERING SYSTEM

• US 20110139536A1
• Filed: 09/21/2009
• Published: 06/16/2011
• Est. Priority Date: 10/09/2008
• Status: Abandoned Application

• Current Assignee: ThyssenKrupp Presta AG (Thyssenkrupp AG)
• Original Assignee: ThyssenKrupp Presta AG (Thyssenkrupp AG)
• Inventors: Kontner, Dennis, Kiforiux, Alexander
• Application Number:
  US13/059,149
• Publication Number:
  US 20110139536A1
• Time in Patent Office: Days
• US Class Current: 180/428
• CPC Class Codes: B62D 5/0445 Screw drives
• CPC Class Codes: F16H 25/2003 with arrangements for taking up backlash F16H25/2209 takes precedence
• CPC Class Codes: F16H 57/0497 Screw mechanisms

Abstract

The invention relates to a rack-and-pinion power steering system for motor vehicles, with a steering housing, in which a gear rack (1) is mounted such as to be longitudinally displaceable, and with a gear system for converting a rotational movement of a servomotor into a longitudinal movement of the gear rack (1), with which the gear system for converting a rotational movement into a longitudinal movement is a hydrostatic spindle drive with a nut (3).

Claims

1. A rack-and-pinion power steering system for motor vehicles, with a steering housing, in which a gear rack is mounted such as to be longitudinally displaceable, and with a gear system for converting a rotational movement of a servomotor into a longitudinal movement of the gear rack, wherein the gear system for converting a rotational movement into a longitudinal movement is a hydrostatic spindle drive with a nut.

2. The rack-and-pinion power steering system according to claim 1, wherein a hollow shaft motor is provided as the drive motor for the nut.

3. The rack-and-pinion steering system according to claim 1, wherein the drive motor is coupled to the nut by means of a gear stage.

4. The rack-and-pinion power steering system according to claim 1, wherein the gear stage is a belt drive.

5. The rack-and-pinion power steering system according to claim 1, wherein the gear stage is a spur gear arrangement.