Patent · US Expired

Rear wheel steering system

US5449186A · kind A · utility

7Cited by

7References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Gerhard Gerl · Regensburg, DE
Franz Lacher · Tegernheim, DE
Michael Ulm · Alteglofsheim, DE
Helmut Patze · Frammersbach, DE
Reiner Bartholomaus · Brück, DE
Liebhart Zaiser · Karlstadt, DE
Rolf Neuhaus · Lohr, DE

Key dates

Filing date	Feb 12, 1993
Grant date	Sep 12, 1995
Priority date	—
Expiry date	Feb 12, 2013

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB62D7/1572
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

An actuating system is provided that includes a differential hydraulic cylinder containing a piston and a piston rod connected to one side of the piston. A first or head chamber (53) is defined in the cylinder and is bounded by the one side of the piston, to which the piston rod is not connected. A second or rod chamber (54) is also defined in the cylinder and is bounded by the other side of the piston, to which the piston rod is connected. An actuatable assembly is provided that is adapted to be connected to either the hydraulic cylinder or the piston rod. Finally, a proportional control valve is provided which is adapted to actuate the hydraulic cylinder by controlling the amount of fluid supply to the first chamber, wherein the supply pressure is connected to the second chamber.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.