FIELD: machine building.
SUBSTANCE: massive rotary machine includes housing 1, divider 2, cylindrical rotor 3, piston 4 with sealing synchronising elements 5, mandrel 6. Housing 1 consists of two parts; its working surface is made in the form of a cylindrical channel and segment of sphere with the diameter that is larger than the channel diameter. At least one cavity 10 and one cavity 11 for supply and discharge of working medium, which are isolated from each other, are located on both sides of housing 1 along its axis. Around housing 1 there concentrically arranged is mandrel 6 so that inlet and outlet openings are formed between inner wall of mandrel 6 and cavities made in housing 1. Working surface of rotor 3 is formed with sphere with the diameter that is equal to or less than diameter of opening of divider 2 and with two conic surfaces with inclination angles corresponding to the inclination angle of divider 2. Inlet and outlet cavities 19 to working chamber 20 are made on rotor 3.
EFFECT: providing the step-like design and improving the machine reliability by reducing the influence of mechanical impurities owing to structural provision of working medium supply to chamber through rotor.
4 cl, 9 dwg
