| 摘要 |
PURPOSE: A piston device is provided to improve combustion efficiency by promoting turbulence of a mixer in compressing and to increase endurance by equally cooling a piston. CONSTITUTION: A piston apparatus comprises a connecting rod(3) connected to a piston(2); a combining unit(5) formed in a middle portion of a body; a circular placing face(6) connected to a small part(4) of the connecting rod; a middle oil passage(7) engaged with an oil passage mounted on a crank shaft body; a spiral oil injecting passage(8) connected to the middle oil passage; an oil discharging hole(10) formed on the combining unit; an inner wall(11) contacting to a space(9); and a crashing plate(12) slantingly protruded on the inner wall. Thereby, the piston apparatus improves combustion efficiency by promoting turbulence of a mixer while compressing.
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