ROTARY DISPLACEMENT PUMP Russian patent published in 2014 - IPC F04C3/02 

FIELD: engines and pumps.

SUBSTANCE: proposed pump comprises suction opening and pressure valve, working cylinder 2 accommodating the main rotor 10 with at least one ledge 12, its radius being equal to that of cylinder 2. Extra rotor 17 has the recess 18 to accommodate rotor 10 ledge 12. Both rotors 10 and 17 are articulated for timed rotation. Rotors 10, 17 are arranged so that their axes cross while rotor 17 rotational plane is located at 90° to rotational plane of rotor 10. End surface of rotor 17 opposite cylinder 2 is located relative to rotor 10 rotational axis at distance equal to rotor 10 radius. Extra rotor 11 of sixes equal to those of rotor 10 is arranged parallel with the latter inside extra cylinder 3 with end walls, suction opening and pressure valve, and articulated with rotor 10. Ledge 13 of rotor 11 is directed to rotor 10 ledge 12 at 180°. End walls of cylinder 3 have two discharge grooves, one to close suction opening and another one to close the pressure valve.

EFFECT: uniform delivery.

7 dwg