Power-assisted steering: Description and operation

DESCRIPTION AND OPERATION

The power-assisted steering system comprises:

• a feed reservoir located in the engine compartment;
• a vane pump driven by the engine, with flow regulating and pressure relief valve;
• a set of connecting pipes between pump-distributor valve-actuating cylinder-reservoir;
• a hydraulic rack-and-pinion steering gear.

Components of the power steering system

1. Pump
2. Fluid delivery pipe to pump
3. Fluid reservoir
4. Fluid return pipe to reservoir
5. Power-assisted steering gear
6. Pressurized fluid delivery pipe
1. Drive shaft
2. Pump body
3. Vane impeller
4. Seal
5. Impeller side plate
6. Regulating valve