| 摘要 |
A multiple compressor is provided to resolve unbalance of force generated in a frame in the operation of the compressor by disposing parts for compressing working fluid symmetrically or with a predetermined angle interval, thereby minimizing vibration and noise while increasing a capacity of the compressor. A multiple compressor includes a crank shaft(30) rotatively mounted to a frame(20) to be driven by a motor part and having an eccentric pin(32) eccentric with respect to a rotation center. Cylinders(50,50') are provided to the frame symmetrically with respect to the rotation center of the crank shaft, and have a compression chamber(51) and a piston(55) inside respectively. Connecting rods(60,60') are connected to the eccentric pin of the crank shaft via ball-joint for transmitting driving force of the crank shaft to the pistons which reciprocate in the cylinders. A connection cap(40) connects balls(62) provided at an end of each of the connecting rods to the eccentric pin of the crank shaft rotatively.
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