PACKAGE TYPE COMPRESSOR

PROBLEM TO BE SOLVED: To efficiently perform cooling and exhaust of a compressor body by using a cooling fan of a compressor pulley in a package type booster compressor and the like.SOLUTION: The compressor body and a motor are fixed to an upper side and an inside of a frame, respectively, in a soundproof box, and the frame is fixed to a bottom surface plate via a vibration-proofing rubber. A base plate is provided in an upper part of the sound-proofing box, a piping part and an after-cooler are provided on the base plate, a pulley with a blade of the compressor body is rotated, cooling air is sucked from intake ports provided in a rear plate and right and left side surface plates to cool the compressor body and the like and then passed through the after-cooler to cool compressed fluid. The cooling air except for the after-cooler is made to pass through an opening part of a rear surface to be exhausted and a more quantity of cooling air is made to pass through the after-cooler.