Power Rack and Pinion Steering Operation

Power Rack and Pinion Steering Operation Points : Power Rack and Pinion Steering Operation When we turn the steering wheel, the weight of car causes the front lyres to resist turning. Which twists a torsion bar (rotary valve mechanism) or thrusts the pinion shaft (spool valve mechanism) slightly. This makes the control valve move and align specific oil passages.

Oil with pressure from pump then flows through the control valve, hydraulic line and into the power cylinder. Pressure acts on the power position the piston helps push the rack and front wheels for turning.

Since the steering gear is filled with oil (usually automatic Transmission fluid) the internal parts of the system are always lubricated. They slide or turn easily with little friction and wear.