186 Auto Suspension and Steering
Flow and Pressure Regulators
To control the output of the pump, a flow regulator
and a pressure regulator are used. Each has a separate
function. A few pumps have only one regulator.
Reservoir cap
Remotely mounted
fluid reservoir
High-pressure hose
High-pressure switch
Pump drive pulley
Mounting bracket
Low-pressure hose
Metal tubing
Mounting
bracket
Steering
gear
Power steering pump
Figure 9-40. A power steering pump which uses a separate, remotely mounted fluid reservoir. (Nissan)
Pump mount
Power steering
vane pump assemb
Pulley
Ribbed
drive belt
Figure 9-41. This power steering pump is belt driven. The belt
is driven by the crankshaft pulley (not shown), and in turn drives
the pump pulley.
Rotor
Cam ring
Pump
housing
Vane
Figure 9-42. A belt-driven vane-type power steering pump.
(Honda)