Hydraulic rack and pinion steering assembly

Details Hydraulic rack and pinion steering assembly Hydraulic rack and pinion steering assembly

1991-06-18

1993-10-12

Focarino, Margaret A.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

180154, 180160, B62D 506

Patent

active

052517179

ABSTRACT:
A hydraulic rack and pinion steering assembly for steering a pair of steerable vehicle wheels comprises a housing defining a passage, an elongate rack supported for longitudinal movement in opposite directions in the passage, and a pinion. The rack has opposite ends connectable with a pair of steerable vehicle wheels, and has rack teeth extending in a row along the rack. The pinion is engaged with the rack teeth. First and second pistons supported on the rack for movement with the rack define movable boundary walls of respective first and second hydraulic chambers in the passage. The pistons have lengths measured along the rack. The row of rack teeth is located axially between the first and second pistons, and is movable in the first and second hydraulic chambers upon movement of the rack in the passage. The rack has a total length equal to the sum of the lengths of the pistons, plus the axial distance between the pistons.

REFERENCES:
patent: 1872714 (1932-08-01), Farley
patent: 3605933 (1971-09-01), Millard
patent: 3951045 (1976-04-01), Frei et al.
patent: 4418781 (1983-12-01), Rabe et al.
patent: 4527465 (1985-07-01), Yoshida et al.
patent: 4629026 (1986-12-01), Rosell
patent: 4702333 (1987-10-01), Lippert
patent: 4953653 (1990-09-01), Klosterhaus
patent: 4986382 (1991-01-01), Harrison

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