| 摘要 |
A bearing device for an internal combustion engine in which device the friction loss is reduced by varying the diametrical clearances of crankshaft bearings supporting the crankshaft, in accordance with the intensities of the impact loads exerted thereon. The friction loss is further reduced, if desired, by enlarging the oil reliefs of the crankshaft bearings and/or the connecting rod bearings. The unbalance of lubricant oil supply that is caused by the variation of the clearances and the enlargement of the oil reliefs can be avoided by regulating the positions of the lubricant oil grooves of the bearings and the positions of the clicks for the position setting of the bearings. |
