Patent ID: 9470176
Filing Date: 2016-10-18
CPC Classification: F02F

Claim Text:
1. An internal combustion engine comprising: a cylinder block defining a block deck face, first and second cylinders, and a block cooling jacket, wherein the first and second cylinders are adjacent to one another and separated by a block bore bridge; a cylinder head having a head deck face defining first and second chambers, and a head cooling jacket, the first and second chambers adjacent to one another and separated by a head bore bridge, wherein the first chamber and the first cylinder form a first combustion chamber, and the second chamber and the second cylinder form a second combustion chamber; and a head gasket positioned between the cylinder block and the cylinder head, the head gasket having a block side and a head side; wherein the block cooling jacket has a first passage and a second passage intersecting the block deck face on either side of the block bore bridge, the first passage on a first side of a longitudinal axis of the cylinder block; wherein the head cooling jacket has a third passage and a fourth passage intersecting the head deck face on either side of the head bore bridge, the third passage on the first side of the longitudinal axis of the cylinder block; wherein the block bore bridge defines a bridge cooling passage having an entrance intersecting the first passage and the block deck face and an outlet intersecting the block deck face adjacent to the second passage; wherein the head gasket defines a first aperture positioned between the outlet of the bridge cooling passage and the fourth passage to fluidly connect the first and fourth passages such that coolant flows from the first passage, through the bridge cooling passage, and to the fourth passage to cool the associated bore bridge; wherein the head gasket forms a second aperture positioned between and fluidly connecting the first passage and the third passage; and wherein the head gasket covers the second passage thereby preventing coolant from flowing from the second passage to the fourth passage.