Bore bridge cooling channels

A system, comprising:

• a cylinder block with a first cylinder and a second cylinder adjacent to the first cylinder and a bore bridge positioned between the first cylinder and the second cylinder, the cylinder block further including a coolant jacket at least partially surrounding the first cylinder and the second cylinder;
• a first cooling passage positioned within the bore bridge, the first cooling passage including a first inlet fluidly coupled to the coolant jacket and a first outlet positioned at a deck face of the cylinder block, the first cooling passage curving from the first inlet to the first outlet with a curvature greater than zero and increasing in cross-sectional area from the first inlet to the first outlet;
• and
• a second cooling passage positioned within the bore bridge, the second cooling passage including a second inlet fluidly coupled to the coolant jacket and a second outlet fluidly coupled to the first cooling passage.

A system, comprising:

• a cylinder block with a first cylinder and a second cylinder adjacent to the first cylinder and a bore bridge positioned between the first cylinder and the second cylinder, the cylinder block further including a coolant jacket at least partially surrounding the first cylinder and the second cylinder;
• a first cooling passage positioned within the bore bridge, the first cooling passage including a first inlet fluidly coupled to the coolant jacket and a first outlet positioned at a deck face of the cylinder block, the first cooling passage curving from the first inlet to the first outlet with a curvature greater than zero;
• and
• a second cooling passage positioned within the bore bridge, the second cooling passage extending in a substantially straight line from a second inlet fluidly coupled to the coolant jacket to a second outlet fluidly coupled to the first cooling passage, where coolant flowing in the coolant jacket is configured to enter the first cooling passage at the first inlet and exit the first cooling passage at the first outlet and enter the second cooling passage at the second inlet and exit the second cooling passage at the second outlet.