| 摘要 |
A balancer structure for a three-cylinder engine for eliminating the vibration in the engine especially the vibration caused by an inertia couple about an axis perpendicular to the crankshaft of the engine. A countershaft is rotated at the same speed as the crankshaft but in opposite direction. Two counterweights are secured to the crankshaft corresponding to the first and third cylinders of both ends. Each counterweight is opposite to the crank arm of the corresponding cylinder and perpendicular to the crank arm of the second cylinder. At least two balancers are secured to the countershaft at both ends thereof. Each balancer is opposite to the corresponding counterweight. |
