Hydraulic steering system: steering system that operates on water pressure.
Pump: apparatus used to move a liquid.
Reservoir: place where liquid is stored.
Cylinder: type of roller that applies a uniform pressure.
Feed pipe: feed pipe.
Rudder: apparatus used to turn a boat.
Piston: cylindrical part that moves up and down in a tube and transmits pressure generated by the fuel.
Safety valve: steam engine valve that prevent explosion.
Wheel: wheel used to regulate the output of the motor.