COOLING STRUCTURE OF CYLINDER BLOCK

摘要

PROBLEM TO BE SOLVED: To provide a cooling structure of a cylinder block wherein excessive cooling is not caused at a coolant-inlet side when uniform temperature is aimed for cylinder-bore walls between cylinders by providing spacers in a water jacket. SOLUTION: The cooling structure of a cylinder block has spaces 20 provided in the water jacket 10 in the cylinder block. (1) Spacer extensions 24 for preventing the coolant from creeping are provided to the spacers 20 close to a coolant introduction part in the water jacket, and (2) a spacer extension 26 for controlling excessive cooling of the cylinder-bore wall is provided to the spacer part oppositely in the direction of the cylinder-bore row in the cylinder bore positioned at the end of the cylinder bore row. COPYRIGHT: (C)2008,JPO&INPIT