A rotary compressor that is used for rotary compressor's compressing mechanism and has it

The utility model discloses a rotary compressor that is used for rotary compressor's compressing mechanism and has it, compressing mechanism include cylinder components, base bearing and supplementary bearing. Be formed with the discharge incision with the working chamber intercommunication on cylinder components's the cylinder, be formed with the exhaust port with discharge incision intercommunication in base bearing and the supplementary bearing at least one. Discharge incision and the exhaust port projected area on the reference surface is S1, S2 respectively, and the ultimate range between the inner wall of discharge notched edge and cylinder is L, and the projected area of exhaust port outside the working chamber is A, and S1, S2, L, a satisfy: S1S2