Rotary slide valve

US7735508B2 · kind B2 · utility

Assignee

• ZF Lenksysteme GmbH · DE

Inventors

• Peter Ertle · Durlangen, DE
• Karl-Heinz Urban · Spraitbach, DE
• Joachim Ilg · Aalen, DE

Key dates

• Filing date: May 8, 2007
• Grant date: Jun 15, 2010
• Expiry date: Nov 10, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/86654
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A rotary slide valve, in particular for speed-dependent power steering systems in motor vehicles, has a torsion bar, a rotary slide, and a control bushing. The control bushing is pressed onto a pinion and the torsion bar is inserted into a torsion bar bore of the pinion. The control bushing is connected rotation-fast to the pinion by shaping. The torsion bar has teeth that are pressed into the torsion bar bore of the pinion and that connect the torsion bar to the pinion rotation-fast.