ROTARY MACHINE Russian patent published in 2001 - IPC

FIELD: manufacture of engines, compressors and pumps. SUBSTANCE: rotary machine has housing with working medium suction and exhaust ports, four-blade drive and driven rotors mounted in this housing and differential gear. Blades of one rotor are located between blades of other rotor, thus forming eight chambers. Machine is provided with reciprocating mechanism. Drive rotor is made in form of revolving cylinder. Driven rotor consists of two rotors mounted on shaft of drive rotor on which partition dividing cylinder into two cylinders is mounted. One of driven rotors is mounted between partition and disk of reciprocating mechanism and is linked with it. Differential gear has passage for ignition of working mixture. Blades of driven rotors have intake passages and blades of drive rotor have exhaust passages. EFFECT: reduced losses of energy; enhanced efficiency. 12 dwg