Vane type rotary devices can be summarized as a vane
that oscillates through a rotation due to a prescribed
cam profile as the mechanism rotates. The majority of
these devices are radial vane, where the vane(s)
reciprocate in the radial direction. However, an axial
translation of the vane is also possible. These
mechanisms generally contain a round rotor (disk) with
equally spaced vane slots. Generally, a shaft is centrally
located in the rotor and provides for the power output.
The cam housing is the same nominal height of the rotor
and encompasses the rotor periphery.