Steering
The DS steering is rack-and-pinion, assisted hydraulically.
The steering wheel simultaneously:
- turns the pinion:
- mechanically by direct contact in the event of loss of pressure,
- hydraulically using fluid pressure in the normal case,
- drives a distributor turning with the pinion.
The distributor sends pressurised fluid to one side of a piston connected to the rack, while the other side is under the atmospheric pressure.
The rack is pushed or pulled according to the rotation of the wheel.