FIELD: engine engineering. SUBSTANCE: head of the cylinder bank has housing 1 with the upper and lower bottoms, cooling space 2 defined between the bottoms, inlet passageway 3, outlet passageway 4, nozzle sleeve 5, and water dispensing pipe 6 mounted inside cooling space 2 of the housing. Pipe 6 is provided with radial openings 7 inclined to each other at different angles within each cylinder and facing mostly heated parts of the surface of the head housing, and at least with one drain opening facing the upper bottom of the housing. The housing of the head is provided with convex port 9 for discharging coolant from cooling space 2 and by-passing ports for cooling cylinders of the engine by natural convection of coolant. The design of the head prevents against forming dead zones for air and steam-air fractions in pipe 6 as well as in cooling space 2. EFFECT: improved design. 4 dwg
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