In a typical vane type pump,what does the rotor turn within?

A) barrel
B) swash cylinder
C) cam ring
D) bushing

Vane Type Pump

A Vane Type Pump is a hydraulic pump in which slotted rotor vanes are used to move fluid through the pump, widely used for their reliability and efficiency in transferring fluids at variable flow rates.

Rotor

Any of a number of different components that rotate. In air brakes, the rotor turns with the wheel and has braking force applied to it, whereas in an alternator, the rotor provides the magnetic fields required to create current flow.

Cam Ring

An eccentric liner, usually stationary, within which mobile pump members rotate.