AIR COMPRESSOR

摘要

The present invention pertains to an air compressor, which includes: a cylinder having a compression chamber which is formed with an indentation; and an orbiter having a piston rod portion which is formed with a protrusion. The piston rod portion includes a piston rod portion inner peripheral surface, a piston rod portion outer peripheral surface, and an end portion at the end thereof such that the piston rod portion is formed to protrude from a frame member. An imaginary circle based on the curvature, which is formed at the end portion of the piston rod portion, has a diameter larger than a width from the piston rod portion inner peripheral surface to the piston rod portion outer peripheral surface. Due to the compression of outdoor air by the piston rod portion making contact with the compression chamber at the farthest end portion of the piston rod portion and the area of the sealed surface of the farthest end portion of the compression chamber, the mutual contact areas increase such that the compression force of the air compressor may increase.