| 摘要 |
Device to for turning one or more eccentric bushings mounted on a crank or cranks on a crankshaft, causing a change in piston stroke in a petrol engine or the like. This invention is a device to turn one or more eccentric bushings during crankshaft rotation. The eccentric bushing (1) is designed with a lever on one or both ends. This lever is coupled to the lever of a control shaft. The control shaft (3) features spiral splines over part of its length. Its level end is mounted in the centrally drilled-out crankshaft end while its splines are in a pulling sleeve (4). The pulling sleeve grips inwardly around the control shaft and outwardly with non-spiral splines against the drilled-out and splined crankshaft. Upon axial manoeuvring of the pulling sleeve the eccentric bushing turns and crank radius is changed.<IMAGE> |
