HEAD OF CYLINDER BLOCK Russian patent published in 2019 - IPC F02F1/40 F01P3/02 

FIELD: engines and pumps.

SUBSTANCE: invention can be used in the internal combustion engines. Cylinder head (2) for an internal combustion engine comprises combustion chambers (4), inlet and exhaust valve ports and water jacket (6). Combustion chambers (4) are located in the longitudinal direction of cylinder head (2). Each opening of the intake valve and each hole of the exhaust valve pass through cylinder head (2) in the vertical direction and open into combustion chamber (4). Water jacket (6) is formed in cylinder head (2). Water jacket (6) includes spaces (31), (32), (33) for coolant located between combustion chambers (4), which are adjacent. Spaces (30), (34) for coolant are located outside relative to combustion chambers (4). Combustion chambers (4) are located at both ends in the longitudinal direction. Spaces for coolant include high pressure space (30), (32), (34), having relatively high internal pressures, when coolant flows, and low pressure space (31), (33), having relatively low internal pressures when coolant flows. High pressure space (30), (32), (34) and a low pressure space (31), (33) are alternately arranged between each other, with combustion chamber (4) placed between them. Water jacket (6) includes the first transverse channel and interconnecting channel (36), (37), (38), (39). First transverse channel (41) passes through a low-pressure space in the transverse direction of cylinder head (2). Communicating channel (36), (37), (38), (39) passes between the inlet valve orifice and the outlet valve and allows high-pressure spaces and low-pressure spaces to communicate with each other. Coolant outlet (20) is connected to first transverse channel (41). With communicating channel (36), (37), (38), (39) or with space (30), (32), (34), inlet (20), (21), (22), (23) for coolant.

EFFECT: technical result is to preserve the possibility of cooling the upper part of the combustion chamber while reducing the pressure of the coolant.

9 cl, 5 dwg