Coolant jacket for a liquid-cooled cylinder head

A coolant jacket is provided for a liquid-cooled cylinder head for an internal combustion engine having a crankcase. The cylinder head has a gas exchange intake side (ES) having two gas exchange intake valves (2) and a gas exchange exhaust side (AS) having two gas exchange exhaust valves (3). The cylinder head includes a gas exchange outlet channel on the gas exchange exhaust side. A fuel injection valve (4) is provided on the intake side and an ignition device (5) is provided on the exhaust side between the gas exchange valves (2, 4). The coolant jacket extends as a first partial coolant jacket (6) on the exhaust side, coming from the crankcase, between the gas exchange exhaust valves and then radially outside around the ignition device and the fuel injection valve and further in the direction of the intake side and the crankcase. A second partial coolant jacket and a third partial coolant jacket (7, 8) are arranged adjacent to the first partial coolant jacket on both sides and are extended substantially aro