FIELD: machine building.
SUBSTANCE: invention relates to vacuum machine building and compressor building and can be used in double-rotor vacuum pumps, air and refrigerating compression machines. Two-rotor machine includes housing, a pair of parallel rotating 8-shaped rotors installed in housing with possibility of free rotation. Profile of each rotor consists of convex section formed by ellipse, and concave section formed by curve conjugated with ellipse. Parameters of the ellipse are defined by certain relationships.
EFFECT: invention is aimed at improvement of double rotor machine efficiency.
1 cl, 4 dwg
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