Liquid cooled automotive piston engine has adjacent cylinders linked by cross-piece in the vicinity of struts

摘要

A liquid-cooled automotive piston engine has a crankcase (1) with two or more cylinders (2, 2') whose axes are parallel to each other and linked by a cross-piece (3). The crankcase has one or more coolant ducts (4, 7) through one or more cylinder walls. The coolant ducts (4, 7) in the vicinity of the crosspiece are formed as a gusset zone (5, 5') with a strut (6, 6') extending in the direction of the cylinder axes.