| 摘要 |
PURPOSE: A piston engine is provided to reduce noise by forming two piston stands between a piston and a connecting rod and reciprocating a piston vertically through a piston stand without horizontal vibration. CONSTITUTION: A piston engine comprises a cylinder(10), a piston(20), a connecting rod(30) and two piston stands(100). The piston reciprocates vertically inside the cylinder. The upper end of the connecting rod is located on the lower end of the piston. The lower end of the connecting rod connects to the rotary shaft(31). The connecting rod reciprocates the piston vertically through the rotary shaft. Two piston stands are vertically installed between the piston and the connecting rod.
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