A cylinder injection type internal combustion engine (1) includes a fuel injection valve (10, 160, 170) for directly injecting a fuel into a cylinder and a catalyst (13a, 13b) for cleaning up an exhaust in an exhaust gas and has at least two combustion con...

During operation with part load, a gasoline internal combustion engine is operated with a lean air/fuel mixture by auto-ignition. During operation with full load, spark-ignition is used to operate the engine. The internal combustion engine is operated in t...

The internal combustion motor has an exhaust gas return feed (21) to bring the exhaust gas to the air intake side of the motor. The return feed has branch channels (22) which open directly into the combustion zones of the cylinders (11), with a non-return ...

The invention relates to a cylinder direct injection engine in which fuel is injected directly into combustion chambers and air-fuel mixture is guided by an air flow. In such engines it is difficult to secure combustion stability under low engine speed and...