Non-eccentric elliptic rotor compressor

A non-eccentric elliptic rotor compressor is a novel compressor put forward to aim at the defect that an eccentric quality exists in a rotating rotor compressor and thus vibrations and noises are caused. The novel compressor changes the eccentric shaft and sleeve in the rotating rotor compressor for a central shaft and an elliptic rotor that has an interference fit with the central shaft. (or the central shaft is integrated with the elliptic rotor.) The elliptic rotor has a clearance fit with an air cylinder and forms a sealed primitive volume with sliding vanes and the bilateral cylinder covers. The primitive volume has periodic changes in the wake of the rotation of the central shaft and the elliptic rotor, thereby achieving the induction, compression and exhaust of gases.