FIELD: manufacture of compressors. SUBSTANCE: profile of working chamber of housing with inlet and outlet passages is made according to cardioid of circle. Separating plate is mounted in chamber forming working chambers. Radial slot made in housing in zone of pole of cardioid receives spring-loaded partition for constant engagement with plate. In the center portion of the plate there is a hole which receives pin of crank of the drive mechanism. EFFECT: enhanced reliability. 1 dwg
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