ROTARY MACHINE WITH ROLLER CONTROLLED VANES

摘要

A rotary machine is provided, having a stator forming a chamber for a rotor, the stator having two sidewalls defining opposite sides of the chamber and a substantially continuous, circumferentially extending inner wall, and at least one inlet and outlet. A rotor and stator define two cavities at opposite ends of the chamber. The rotor has at least two radially extending slots and at least two radially movable vanes having first and second primary rollers and first and second secondary rollers mounted on a radially inward section of the vane. Two roller cam devices are each provided on a respective one of the stator side walls and are positioned centrally adjacent opposite sides of the rotor. In use, outer tips of the vanes slidingly engage the inner wall of the stator. The primary rollers limit outward vane movement due to centrifugal forces. Secondary rollers limit and control inward vanes movement.