Hydraulic steering

Details Hydraulic steering Hydraulic steering

2011-08-16

2011-08-16

Hurley, Kevin (Department: 3611)

Motor vehicles

Steering gear

With fluid power assist

C701S042000

Reexamination Certificate

active

07997378

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 endeavoured 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.

REFERENCES:
patent: 5835870 (1998-11-01), Kagawa
patent: 6050359 (2000-04-01), Mouri et al.
patent: 6198992 (2001-03-01), Winslow
patent: 6502661 (2003-01-01), Heitzer
patent: 7789190 (2010-09-01), Thomsen et al.
patent: 2007/0221435 (2007-09-01), Vernersen et al.
patent: 2007/0221437 (2007-09-01), Kryhlmand et al.
patent: 3607710 (1986-09-01), None

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