Hydraulic steering device

US7617905B2 · kind B2 · utility

Assignee

• Linde Material Handling GmbH · DE

Inventors

• Binio Binev · Haibach, DE
• Udo Herrmann · Dormagen, DE

Key dates

• Filing date: Dec 8, 2006
• Grant date: Nov 17, 2009
• Expiry date: Dec 25, 2027

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66F9/07568
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A hydraulic steering device (1) of a mobile machine, in particular of an industrial truck, includes a steering angle transmitter (2) in mechanically functional communication with a steering valve (4). As a function of the actuation of the steering angle transmitter (2), the steering valve (4) controls the connection of a steering drive (13) with a pressure fluid source (6) and a reservoir (11). To vary the translation ratio of the steering device in a simple manner, a bypass device (20) is operationally associated with the steering drive (13). By activation of the bypass device, the quantity of pressure fluid delivered from the pressure fluid source (6) to the steering drive (13) can be diverted to a reservoir (11).