A first water jacket (12) has a plurality of first cooling water inlet portions (16) in its central region, and has two first cooling water outlet portions (17) in one lateral surface side of a cylinder head to which an exhaust component is attached. The f...

A cooling water passage in the cylinder head (22) of engine to evenly absorb heat to prevent deformed mechanical parts has a spacer (26) between cylinder and cylinder head (22), a water connection port on the exhaust passage side of the spacer (26), coolin...

The cylinder head has borings (1) for screws to join it to the crankcase, with the top (5) and a bottom (4), between which is a coolant channel (6). There are intermediate decks in the transverse plane is of the borings, which direct the upward flow of coo...

The cylinder head (1) has a one-piece coolant jacket core (3) and a coolant jacket with at least one venting bar (4). In the assembled state, the virtual roof plane (5) on the core rises in the direction of the venting bar, forming an angle of not less tha...

A cooling water channel of a cylinder head (1) has two parallel channels: an intake side channel (2) extending along the periphery of an intake port (5) in a longitudinal direction and an exhaust side channel (3) extending along the periphery of an exhaust...