Patent ID: 9376984
Filing Date: 2016-06-28
CPC Classification: F01P,F02F

Claim Text:
1. A cooling structure for an internal combustion engine, in which: a spacer is fitted inside a water jacket which is formed to surround peripheries of a plurality of cylinder bores arranged one after another on a cylinder row line of a cylinder block of the internal combustion engine; a fixing member is provided for fixing the spacer inside the water jacket; and a cooling condition of the cylinder bores is controlled by regulating a flow of cooling water in the water jacket by use of the spacer, wherein the spacer comprises a spacer main body separating the water jacket into an upper cooling water passage and a lower cooling water passage, and a plurality of lower support legs which extend downward at positions below the fixing member, and which contact a bottom portion of the water jacket, the spacer main body surrounds peripheries of the plurality of cylinder bores, the lower support legs are provided at parts in a peripheral direction of the spacer main body so as to be distanced from each other in a direction of the cylinder row line, the fixing member is provided on an inner wall surface of the spacer main body facing the cylinder bores.