Device for actuating the control valve of a hydraulic power steering system

US5348110A · kind A · utility

Inventors

• Hans-Christof Klein · Hattersheim, DE
• Manfred Kahrs · Wiesbaden, DE
• Peter Drott · Frankfurt am Main, DE
• Wilhelm Beer · Gerolzhofen, DE
• Joachim Baier · Hanau, DE
• Peter Kraft · Kassel, DE
• Andreas Lang · Ettringen, DE

Key dates

• Filing date: Apr 23, 1992
• Grant date: Sep 20, 1994
• Expiry date: Apr 23, 2012

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B62D5/09
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A device for actuating the control valve (14) of a hydraulic power steering system for automotive vehicles, the rotary motion of a steering wheel being transmitted by means of a steering shaft (2) and the steering torque being transmitted by a relative rotation between the steering shaft (2) and a pinion shaft (4), and wherein the control valve (14) is a linear slide valve. A sleeve (6) embracing the steering shaft (2)and the pinion shaft (4) converts the relative rotation between the two shafts into an axial displacement axially and helically extending coulisse-type guides (7, 8), angularly disposed to one another, within which pins (9, 10), rigidly coupled to the steering shaft (2) and the pinion shaft (4), are received.