Direct injection gasoline engine

摘要

In a center injection type of direct engine, since it has an ignition plug (20) and an injector (10) arranged in proximity, there occurs the problem that a sprayed liquid fuel directly strikes the ignition plug (20) and causes the plug (20) to misfire. A notch is to be provided at a portion of the injector end so as to form a coarse-grained portion and a dense portion in sprays of fuel, and the injector (10) is disposed so that the coarse-grained portion is directed towards the ignition plug (20). It is possible to avoid the misfiring of the ignition plug (20) and thus prolong the life of the plug (20), by preventing a liquid fuel from directly striking the plug (20).