| 摘要 |
A low backpressure rotary compressor comprises a housing, a motor and a compressing mechanism. A chamber is provided inside the housing. An air suction pipe is provided on the top of the housing. The motor is arranged in the chamber, and the chamber is divided into an upper chamber and a lower chamber by the motor. Channels are formed between an outer surface of the motor and an inner surface of the housing, and/or in the motor. One end of each channel is communicated with the upper chamber, and the other end of each channel is communicated with the lower chamber. The exhaust volume of the compressor is V, the flow area of the channels is S, the rotating speed of the motor is F, and the flow rate of air passing through the channels is v, so that v=(V*F)/S. Wherein, when F<=60rad/s, 2(m/s)<=v<=25(m/s); when F>60rad/s, 8(m/s)<=v<=40(m/s). |
