Patent ID: 9556821
Date: 2017-01-31
CPC Classifications: F02B,F02F,F16J

Claim:
1. A piston structure for an engine, comprising: a piston for reciprocating within a cylinder; a connecting rod having a smaller-end part and a larger-end part in both ends, respectively, the smaller-end part coupled to the piston, the larger-end part coupled to a crankshaft; a cross-sectionally hollow piston pin coupling the piston to the smaller-end part; and a dynamic absorber provided inside the piston pin, including a fixed part fixed to the piston pin and a movable part pivotally supported by the fixed part, and for suppressing the piston, the piston pin, and the smaller-end part from integrally resonating with respect to the larger-end part of the connecting rod on combustion stroke, wherein the dynamic absorber includes an assemblable dynamic absorber in which the movable part is formed by attaching a mass adjusting part to the fixed part.