Bayerische Motoren Werke Aktiengesellschaft

Bavarische Motoren Werke Aktiengesellschaft

Eckard Pueschel

Norbert Dembinski

Christian Absmeier

Walter Nederegger

Michael Haimerl

A spark-ignition internal combustion engine has an air intake tract for supplying fresh air to a combustion chamber of the spark-ignition internal combustion engine, an exhaust tract for discharging exhaust gases from the combustion chamber, and a urea introduction device having a urea injection nozzle for introducing an aqueous urea solution into the combustion chamber. The urea injection nozzle is disposed in the combustion chamber or upstream of the combustion chamber in relation to an air flow from the air intake tract into the combustion chamber.

Spark-ignition internal combustion engine having urea introduction device and method for operating an internal combustion engine of this type

A liquid-cooled internal combustion engine has cylinder banks that tilt toward one another, to for a V engine. A coolant, which is fed to the exhaust gas-sided cooling jackets in the cylinder banks, is fed over cylinder heads with cross flow to cooling jackets. The coolant drains over break-throughs in the cylinder bank boundaries into an outflow line in the V-space. The outflow line and the inflow line are connected to a coolant pump. The coolant is fed from the inflow line over distribution channels at a housing end to the exhaust gas-sided cooling jackets.

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Marzling, Germany

Eckard Pueschel