Internal-combustion engine comprising two cylinder banks

An internal-combustion engine comprising:

• an engine crankshaft having a crankshaft axis;
• first and second cylinder banks with cylinder blocks for cylinders housing pistons drivingly connected to the crankshaft, said first and second cylinder banks being disposed at opposite lateral sides of the crankshaft axis;
• a first cylinder head connected to the first cylinder block along a first separating plane;
• a second cylinder head connected to the second cylinder block along a second separating plane;
• a cooling water pump arranged on an end face of the first cylinder block;
• a connecting duct extending between the pump and the second cylinder bank, said connecting duct extending underneath the crankshaft axis;
• cooling water jackets in the cylinder blocks, and a cooling opening in the cylinder heads through which cooling water from the pump flows in a transverse manner;
• a cooling water collector arranged above the crankshaft axis for collecting water flowing from the cylinder banks;
• a feeding duct for cooling water arranged in each respective lower wall of the first and second cylinder banks adjacent the respective first and second separating planes and extending below and parallel to the crankshaft axis, said feeding ducts extending from respective lower walls of the cylinder banks through the associated separating plane into the associated cylinder head and then communicating with said cooling water jackets;
• and
• a discharge duct for cooling water arranged in each respective upper wall of the first and second cylinder banks adjacent the respective first and second separating planes and extending parallel to the crankshaft axis.