EP 1644237 A1 20060412 - HYDRAULIC SYSTEM
Title (en)
HYDRAULIC SYSTEM
Title (de)
HYDRAULISCHES SYSTEM
Title (fr)
SYSTEME HYDRAULIQUE
Publication
Application
Priority
- EP 2004005904 W 20040601
- DE 10331534 A 20030711
Abstract (en)
[origin: WO2005007488A1] Disclosed is a hydraulic steering system (100) for a vehicle, especially a mobile working machine, comprising at least two steering cylinders (1, 2) within which two cylinder pistons (3, 4) can be displaced, and a first hydraulic pump (14) that can be adjusted regarding the swept volume. The position or the direction of displacement of the cylinder pistons (3, 4) in the steering cylinders (3, 4) defines the steering angle or the steering direction of the steerable vehicle wheels relative to a body (5) of the vehicle. The displaceable cylinder pistons (3, 4) divide the associated steering cylinder (1, 2) into two respective pressure chambers (6 and 7, 8 and 9). The first connection (46) of the adjustable hydraulic pump (14) is joined to one of the pressure chambers (6 or 7, 8 or 9) of the two steering cylinders (1, 2) according to the steering direction while the second connection (15) thereof is joined to the other respective pressure chamber (6 or 7, 8 or 9) of the two steering cylinders (1, 2) in a closed circuit.
IPC 1-7
IPC 8 full level
B62D 3/14 (2006.01); B62D 5/06 (2006.01); B62D 5/09 (2006.01); B62D 5/093 (2006.01); B62D 9/00 (2006.01); B62D 12/00 (2006.01)
CPC (source: EP US)
B62D 3/14 (2013.01 - EP US); B62D 5/062 (2013.01 - EP US); B62D 5/09 (2013.01 - EP US); B62D 5/093 (2013.01 - EP US); B62D 9/00 (2013.01 - EP US); B62D 12/00 (2013.01 - EP US)
Citation (search report)
See references of WO 2005007488A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 2005007488 A1 20050127; DE 10331534 A1 20050217; DE 10331534 B4 20080117; EP 1644237 A1 20060412; JP 2007506604 A 20070322; JP 4516571 B2 20100804; US 2007017730 A1 20070125; US 7726438 B2 20100601
DOCDB simple family (application)
EP 2004005904 W 20040601; DE 10331534 A 20030711; EP 04739495 A 20040601; JP 2006517989 A 20040601; US 56468604 A 20040601