Patent ID: 8794941
Filing Date: 2014-08-05
Classification: F01C,F04C

Abstract:
1. A positive displacement compressor, comprising: a compression chamber, including a cylindrical-shaped casing having a first end, a second end, and an inner curved surface; a shaft located axially in the compression chamber; a non-circular rotor mounted for rotation with the shaft relative to the casing, the non-circular rotor having a sealing portion, the sealing portion having a curved surface that corresponds with the inner curved surface of the cylindrical-shaped casing, and a non-sealing portion; a gate, the gate having a first end and a second end; and a gate positioning system, the gate positioning system operable to locate the first end of the gate proximate to the non-circular rotor as the rotor turns, wherein the gate positioning system comprises at least one cam that drives the gate positioning system, wherein the gate positioning system comprises: wherein the gate positioning system comprises at least one spring connected to the cam follower so as to urge the cam follower to maintain contact with the cam.