ROTARY COMPRESSOR Russian patent published in 1994 - IPC

FIELD: compression and motion of gas. SUBSTANCE: blades mounted on two concentric shafts are arranged in housing provided with suction and discharge ports forming working chambers. Gas distributing casing is secured on blades. Shaft drive mechanism is located in the synchronization chamber. Casing is built up of end and cylindrical members secured in pairs on each blade. Each member is secured on two blades. Ports are located in pairs on cylindrical and end surfaces of working chamber. Two suction ports of first stage are brought in communication with suction chamber. Two discharge ports of first stage are brought in communication with suction chamber of second stage. Discharge port of second stage is brought in communication with discharge chamber. EFFECT: enhanced reliability. 3 cl, 3 dwg