ROTARY HYBRID MACHINE OF VOLUMETRIC ACTION Russian patent published in 2016 - IPC F04C3/02 F04C18/50 

FIELD: pumps.

SUBSTANCE: invention relates to pumps and compressors manufacturing. Volumetric acting rotary hybrid machine includes housing, suction opening 11 and pressure valve arranged in suction and discharge line 12, working cylinder 3 with main rotor 4, having at least one ledge, radius of which is equal to radius of cylinder 3, and auxiliary rotor 7 with recess to accommodate rotor ledge 4. Rotors 4 and 7 are mounted so that their axes are intersecting. Plane of rotation of rotor 7 is located at angle of 90° to plane of rotation of rotor 4. Line 12 comprises slide with hole and movable element, which has two fixed positions along bore axis. Pressure valve is arranged in moving element. In one of positions of movable element cylinder 3 is connected with extra pressure line provided with section with inclined towards direct flow surfaces forming stepped channel.

EFFECT: invention is aimed at reduction of losses in process fluid injection owing to active braking reverse flow.

3 cl, 8 dwg