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 having two gas exchange intake valves and a gas exchange exhaust side having two gas exchange exhaust valves. A fuel injection valve i...

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Bibliographische Detailangaben
Hauptverfasser: Gutzer, Ulrich, Ruffing, Wolfgang, Ruetten, Frank
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung: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 having two gas exchange intake valves and a gas exchange exhaust side having two gas exchange exhaust valves. A fuel injection valve is provided on the intake side and an ignition device is provided on the exhaust side between the gas exchange valves. The coolant jacket extends as a first partial coolant jacket 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. Optimal cooling of the ignition device and the fuel injection valve is achieved which enables high specific powers and pressures leading to fuel consumption and cost advantages.