| 摘要 |
PURPOSE:To reduce vibration and a horse power loss, by a method wherein the center of gravity of a crank is kept at the proper center of gravity of a crank in response to the number of revolutions. CONSTITUTION:A cylinder 5 is formed in a crank 1. A weight 2 and a spring 3 are placed therein, and the weight 2 is moved according to the number of revolutions by means of a passage 4 through which an oil pressure proportional to the number of revolutions is fed from a crank shaft 6. This causes the center of gravity of the crank to be kept at the proper center of gravity of the crank in response to the number of revolutions. |
