VERTICAL, MULTI-LINK, ADJUSTABLE-STROKE TYPE ENGINE

摘要

A vertical, multi-link, adjustable-stroke type engine includes a lubricating oil passage provided in a cylinder barrel for supplying lubricating oil to a lower shaft end portion of a crankshaft and at least a lower shaft end portion of an eccentric shaft, which changes an intake stroke and compression stroke of a piston, so as to pre-press the crankshaft and the eccentric shaft in a predetermined direction, or for supplying lubricating oil to the lower shaft end portion of the eccentric shaft so as to pre-press the eccentric shaft in a predetermined direction.