Patent ID: 7621727

Claim:
An automobile compressor piston, comprising: an automobile compressor piston ( 1 ) including a packing ( 111 ), a piston ring ( 12 ), a connecting rod ( 13 ), a bearing ( 14 ) and an cam ( 15 ); wherein the packing ( 11 ) being a ring with a hollow center and including two fixing holes ( 111 , 112 ) at an upper side thereof; the piston ring ( 12 ) located between the packing ( 11 ) and the connecting rod ( 13 ) for preventing from friction between the packing ( 11 ) and the connecting rod ( 13 ) so that the connecting rod ( 13 ) will not be abraded or run unevenly; the connecting rod ( 13 ) comprises a locking hole ( 131 ) and a suction valve ( 132 ) on a top thereof; a thread part ( 133 ) on a side surface for locking the packing ( 11 ) so that the packing ( 11 ) enclosing the thread part ( 133 ) of the connecting rod ( 13 ); two grooves ( 134 ) at a center portion thereof; and, a round hole ( 135 ) at a bottom thereof; the bearing ( 14 ) is deposed in the round hole ( 135 ) at the bottom of the connecting rod ( 13 ), comprising a shaft hole ( 141 ) at a center thereof; the cam ( 15 ) comprises a camshaft ( 151 ) to be inserted into the shaft hole ( 141 ) of the bearing ( 14 ); an eccentric hole ( 152 ) on an opposite side surface to the camshaft ( 151 ); and a locking hole ( 153 ) on a side surface to the eccentric hole ( 152 ); the cam ( 15 ) has a sector shape, which is a weight block to drive the piston ( 1 ) to move upward and downward.