A fluid compression system includes a compressor, an electric motor
including a stator and a rotor positioned adjacent to the stator, and a
shaft coupled to the rotor to support the rotor for rotation and having a
drive end and a non-drive end. A plurality of flow-inducing elements are
integrally-formed as part of the shaft and is adapted to induce a flow of
fluid from the non-drive end toward the drive end in response to rotation
of the shaft.