| 摘要 |
A piston type compressor comprises a compressor housing enclosing a crank chamber, suction chamber, and a discharge chamber therein. A plurality of pistons are slidably disposed within each of cylinders formed in a cylinder block. Each of the pistons includes a piston head, a piston end, a main cylindrical body and an engaging portion at the piston end axially extending from the cylindrical body. A first aperture is formed in the cylindrical body of the piston, so that the first aperture is near the piston head of the piston. A second aperture is formed in the cylindrical body of the piston so that the second aperture is near the piston end of the piston. The first aperture is positioned within the cylinder bore when the piston reciprocates in the cylinder bore. As a result, the piston type compressor of the present invention has a light weight piston which simultaneously reduces abrasion between the piston and the cylinder bore and reduces noise and vibration.
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