CRANK CASE IN INTERNAL COMBUSTION ENGINE

摘要

PURPOSE:To effectively cool lubrication oil by duplicating the wall body of an oil pan and circulating cooling water therein. CONSTITUTION:The wall body of a crank case 2 is duplicated and the outer walls 9 and 10 are connected at proper places inside in a body. A water jacket 11 which encloses almost all the circumference of the crank case 2 is formed between them. The wall body of an oil pan 3 is also duplicated and a water jacket 19 which encloses almost all the circumference of the oil pan 3 is formed. The water jacket 19 connects to the water jacket 11 of the crank case 2.