Motor vehicles – Steering gear – With fluid power assist
Reexamination Certificate
2005-02-18
2009-11-03
Morris, Lesley D (Department: 3611)
Motor vehicles
Steering gear
With fluid power assist
C701S041000
Reexamination Certificate
active
07610988
ABSTRACT:
The invention concerns a hydraulic steering with a steering initiator, a steering unit with feedback properties, which can be activated by the steering initiator, the steering unit having a supply connection arrangement with a pressure connection (P) and a tank connection (T) and a working connection arrangement with two working connections (L, R), an auxiliary-force operated steering valve, which is located in parallel with the steering unit between the supply connection arrangement (P, T) and the working connection arrangement (L, R), and a feedback suppressing device, which is active, when the steering valve is active. It is endeavored to find a simple manner of ensuring the priority of the steering initiator over the steering valve. For this purpose, the steering initiator interacts with an activation sensor, which deactivates the feedback suppressing device on an activation of the steering initiator.
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Jensen Kjeld Buus
Nielsen Finn Visgaard
Porskrog Bendt
Thomsen Svend Erik
McCormick Paulding & Huber LLP
Morris Lesley D
Sauer-Danfoss Aps
Yeagley Daniel
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