Patent ID: 6928964

Claim:
A cylinder head for a liquid-cooled internal combustion engine, with at least one intake and at least one exhaust port per cylinder, and with a cooling chamber configuration adjacent to a fire deck, which is partitioned by an intermediary deck essentially parallel to the fire deck into a lower cooling chamber next to the fire deck and an upper cooling chamber adjoining said lower cooling chamber in the direction of a cylinder axis, where lower and upper cooling chambers are flow-connected by at least one main transfer opening per cylinder in the area of a side wall of the cylinder head and by at least one auxiliary transfer opening in the region of an insertion opening for the insertion of a fuel injection device, and where at least one feeder inlet per cylinder for a cooling medium opens into the lower cooling chamber and at least one draining outlet for the cooling medium departs from the upper cooling chamber, and where a lower cooling chamber is provided for each individual cylinder, the lower cooling chambers of at least two adjacent cylinders being essentially separated by partitioning wall and the cooling medium flowing essentially transversely to the cylinder head in the lower cooling chamber, while the upper cooling chamber extends over at least two cylinders, wherein at least one a auxiliary transfer opening is configured as a recess in the insertion opening, wherein at least one first auxiliary transfer opening is located in at least one area between the intake passage and the insertion opening and/or between the exhaust passage and the insertion opening, and wherein at least two auxiliary transfer openings are provided which are configured as recesses in the insertion opening, at least one first auxiliary transfer opening being located in the area between the exhaust passage and the insertion opening and at least one second auxiliary transfer opening being located in the area between the intake passage and the insertion opening.