METHOD FOR OPERATING AN ENGINE IN PARTICULAR A DIRECT INJECTION ENGINE COMPUTER PROGRAM AND CONTROL AND/OR REGULATION UNIT

PURPOSE: A method for operating a direct injection-type engine, a computer program, and a control/regulation unit are provided to easily and reliably remove impurities in an injector and to prevent the injector from being polluted. CONSTITUTION: A method for operating a direct injection-type engine makes fuel be supplied to at least one fuel injector(30) and injected into at least one combustion chamber. At least one area adjacent to at least one flow-out opening(50) of the fuel injector receives high frequency vibration for at least constant time. A valve element(44) of the fuel injector receives the high frequency vibration for a constant time within at least one area of an opening step. In addition, the valve element is moved by a piezoelectric actuator(58) and the high frequency vibration is created by the high frequency interference of control voltage or control current of the actuator. 직접 분사식 엔진에 있어서, 연료가 적어도 하나의 연료 분사 장치로 공급된다. 엔진의 작동 중에 연소 실화를 방지하기 위하여, 연료 분사 장치의 적어도 하나의 출구 개구와 인접한 적어도 하나의 영역이 적어도 일정 시간동안 고주파 진동(84)을 받는 것이 제안된다.