Power Steering Pump

The power steering pump is a vane-type pump. Pump components include an engine-driven eccentric rotor, a fixed ring having 6 slotted grooves, and a flow control valve to regulate maximum oil pressure and amount of oil flow.

Slippers are fitted in each slotted groove, and are pressed against rotor outside surface by pressure produced in adjoining slots and by spring tension.

As rotor rotation increases or decreases, space between the rotor and fixed ring changes accordingly, in order to control oil flow.