Rotary Machine

A rotary machine comprising:

• (a) a rotor comprising an outer surface having an elliptical cross-section;
• (b) a crankshaft for providing rotational force to rotate said rotor about a first axis of rotation at a first angular velocity;
• (c) a mechanical coupling between said crankshaft and said rotor, said coupling configured such that:
• (i) rotation of said crankshaft about said first axis of rotation induces rotation of said rotor about an instantaneous second axis of rotation at a second angular velocity proportional to said first angular velocity, said second axis of rotation positioned at a fixed distance from said first axis of rotation;
• and
• (ii) said second axis of rotation orbits about said first axis of rotation at said first angular velocity;
• (d) a housing having an inlet and an outlet formed therein, said housing having an interior cavity within which said rotor is configured to rotate, said housing interior cavity comprising an inner surface having a cross-sectional profile defined by a locus of a set of points on said rotor outer surface for which an instantaneous velocity vector is perpendicular to a line drawn from a member of said set of points to said second axis of rotation as said rotor completes one revolution of rotation, said housing cavity inner surface having an interiorly-extending inverse apex region between said inlet and said outlet that is in contact with said rotor during rotation of said rotor thereby providing separation between said inlet and said outlet;
• wherein said housing cavity inner surface further comprises a first cut-out formed therein that extends circumferentially and is fluidly connected to one of said inlet or said outlet;
• whereby, upon connecting said inlet to a fluid source, rotation of said rotor draws fluid into a space formed between said rotor and said housing cavity inner surface and discharges said fluid from said outlet.