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AssigneeJ. C. Bamford Excavators Limited
InventorsRichard Frederick George Young, Nathan James Clarke, Richard Edward Cadman
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A steering arrangement including a first, second, third and fourth hydraulic chamber, the first and third chambers being operable to steer in a first direction and the second and fourth chambers being operable to steer in a second direction. A pump system supplies fluid to a steering system, which is operable to supply the pressurised fluid to one or more of the first, second, third and fourth hydraulic chambers. The steering system having a first mode wherein fluid is supplied to the first and third hydraulic chambers to steer in the first direction, or pressurised fluid is supplied to the second and fourth hydraulic chambers to steer in the second direction. The steering system having a second mode to steer in the first direction, or to steer in the second direction, such that the steering ratio is higher in the second mode than in the first mode.
A steering arrangement including a first hydraulic pressure chamber, a second hydraulic pressure chamber, a third hydraulic pressure chamber and a fourth hydraulic pressure chamber, the first and third pressure chambers being selectively operable to steer in a first direction and the second and fourth pressure chambers being selectively operable to steer in a second direction,
A steering arrangement including a first hydraulic pressure chamber, a second hydraulic pressure chamber, a third hydraulic pressure chamber and a fourth hydraulic pressure chamber, the first and third pressure chambers being selectively operable to steer in a first direction and the second and fourth pressure chambers being selectively operable to steer in a second direction,
Dependencies are inferred from the claim text.