Hydraulic assist wheel end

Details Hydraulic assist wheel end Hydraulic assist wheel end

2008-05-29

2011-11-08

Dickson, Paul N (Department: 3611)

Motor vehicles

Having at least one wheel both driven and steerable

Steerable wheel has exclusive axis of pivot

C180S254000, C180S255000, C180S256000, C180S257000, C180S259000, C180S260000, C180S261000, C180S062000, C180S063000, C180S305000, C180S308000, C280S093512

Reexamination Certificate

active

08051940

ABSTRACT:
A steerable vehicle knuckle has an inboard portion defining upper and lower arms, with a kingpin between them, and has an outboard portion defining a spindle that cooperates with a fluid driven motor. The arms define a cavity where an axle end portion is pivotally received. Fluid supply ports, which supply fluid to energize the motor, are located on an upper surface of the knuckle's inboard portion. Fluid drain lines extend within the knuckle from the motor to the cavity and are utilized to drain fluid from the motor. The supply ports and drain lines are each connected to separate hoses formed in a small arc that follows closely the circular curvature of the kingpin. This arrangement of port, lines, and hoses is less expensive to produce, easier to package, more robust, allows for faster steering reaction, and is easier to assemble than conventional arrangements.

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