COMPRESSOR Russian patent published in 2017 - IPC F04C18/20 

FIELD: machine engineering.

SUBSTANCE: compressor contains a housing 1 with main and distribution rotors 2 and 3 placed therein forming a compressed gas path. The rotor 2 is made in the form of a hollow cylinder with longitudinal slits, separated by jumper links, and placed on a fixed axis 4. The rotor 3 is made in the form of a solid cylinder with longitudinal grooves. The compressor is provided with at least one additional rotor 2 with the formation of at least one additional compressed gas path. In the axis 4 of each rotor 2 there are two gas channels 8 connecting the dead space 6 with the intake air transfer zone and located at the inlet and outlet of the space 6. The number of jumper links is chosen so that there is at least one transfer zone limited by two jumper links between the suction and compression zones. The number of rotors 2 is at least one more than the number of rotors 3.

EFFECT: partially unloading bearings, reducing the amount of gas transferred by the dead space to the suction zone, reducing the heat load.

5 cl, 2 dwg