SLIDING-VANE ROTARY COMPRESSOR Russian patent published in 2008 - IPC F04C23/00 F04C18/44 

FIELD: engines and pumps.

SUBSTANCE: invention relates to sliding-vane rotary compressors. The sliding-vane rotary compressor contains a rotor with vanes arranged in the cylinder, an end face cover with suction holes and an end face with a discharge channel, a fan with impeller feeding gas into the suction hole, one or several discharge valves. The said compressor is a gas two-stage compression unit, the first compression stage being represented by the aforesaid fan with the impeller furnished with a pulley connected to the rotor axle pulley. Both pulleys are arranged on the end face suction hole cover outer side and feature a transmission ratio allowing the increase in the impeller rpm relative to the rotor rpm. Gas compression in the cylinder makes a second compression stage with the gas fed by the fan impeller in the cylinder gas compression space hole through a space separated from the discharge side by a partition allowing a one-way gas flow passage and making the first receiver. The discharge channel is arranged along the rotor axis. A high degree of compression is ensured during one filling cycle at the pressure exceeding the atmospheric one.

EFFECT: higher degree of compression during one cycle.

15 cl, 11 dwg