FIELD: engines and pumps.
SUBSTANCE: invention relates to rotary screw displacement machine and aims at expanding performances reducing angular paths of thermodynamic cycles. The machine incorporates housing (30) with the main axis X and two elements (10, 20), the first element (20) enveloping the second element (10). The first element (20) pivots in housing (30) and can revolve about its axis (Xf) aligned with the main axis X I rotary motion, while the axis (Xm) of the second element (10) revolves about the axis (Xf) of the first element in rotary motion along the radius E. The machine incorporates additionally synchroniser (34; 36; 38; 40) locking the turning and revolving motions so that the working medium displaces in at least one working chamber (11) limited by outer surface (22) of the first element (20) and inner surface (12) of the second element (10).
EFFECT: higher efficiency and reduced heat losses.
20 cl, 22 dwg
