Motor vehicles – Steering gear – With fluid power assist
Reexamination Certificate
2005-03-22
2005-03-22
Morris, Lesley D. (Department: 3611)
Motor vehicles
Steering gear
With fluid power assist
C180S439000, C180S414000
Reexamination Certificate
active
06868935
ABSTRACT:
Method and arrangement for operating self-steering wheels on a non-driving axle (3) in a vehicle, which wheels (1, 2) are each mounted on their own stub axle (4, 5) and connected to a tie rod (8). The axle (3) and one (4) of the stub axles are connected by a cylinder (12) with two separate chambers (16, 17), each chamber having an individually adjustable piston (22, 23), the cylinder (12) having a first, freely movable state, in which its length is variable, and a second, pressurized state, in which its length (S3) is fixed, and in that each chamber (16, 17) has at least one connection (18, 19, 20, 21) for pressure medium for acting on the respective piston (22, 23) in the cylinder (12).
REFERENCES:
patent: 3008461 (1980-09-01), None
patent: 2948181 (1981-06-01), None
patent: 19636803 (1997-11-01), None
patent: 19803745 (1999-08-01), None
patent: 0845403 (1998-06-01), None
patent: 2202811 (1988-10-01), None
Luby Matthew
Morris Lesley D.
Novak Druce & Quigg LLP
Volvo Lastvagnar GB
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