Marine vessel IC-engine big end assembly - has head guide located in longitudinal centre plane of engine, resulting in smaller movements of guide surface

摘要

The engine has a cross head, which connects piston rod and connecting rod, and is displaceable by a guide shoe (33) with support surfaces (37,38). The surfaces slide along a guide surface (9,10) on a head guide, which is mainly parallel to the longitudinal axis of the cylinder. The head guide is located along the longitudinal centre plane of the engine. The guide surface of the head guide is at least partly directly outwards in transverse direction of the engine. Due to this, the associated support surface of the guide shoe is at least partly located on the side of the guide surface away from the centre plane. ADVANTAGE - Reduced risk of damage or wear to head guide or guide shoe.