Coolant jacket core (16) for producing a cylinder crank housing (10) with a narrow ridge width, comprises at least an integral base core (20), which comprises at least two adjacently arranged core body in hollow cylindrical section form, and a bar core (18...

The cylinder head comprises an exhaust manifold (22), and a cooling circuit (40) fitted to inner side of the cylinder head by liquid coolant. The cooling circuit comprises a concave cooling chamber (52) laid between walls of the exhaust manifold to collect...

A partition plate (100) (cast-in object plate member) is preliminarily set in an intake-port forming sand core (200), by which an intake port (14) of a cylinder head (10) is molded, and cast in during cast molding of the cylinder head for partitioning the ...

In a method of manufacturing a cylinder head having a partition plate for an intake port, there is prepared a partition plate having an intake-side distal end and a cylinder-side distal end. The partition plate is located in a core to form the intake port ...

A partition plate (tumble plate) for an intake port is previously placed in an intake port molding sand core (port core) for forming an intake port of a cylinder head, and cast-in as the cylinder head is cast-molded, to partition the intake port into a plu...

The cylinder head of an internal combustion engine is medium-cooled, each cylinder having an annular cooling medium chamber encompassing the cylinder, and cooling medium channels (6a,6b). The cylinder head in the direction from the combustion chamber plate...