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专利名称：Method for starting an internal combustion
engine, particularly an internal combustionengine having direct fuel injection
发明人：Helmut Denz,Andreas Kufferath,Martin
Ludwig
申请号：US10756688申请日：20040112
公开号：US20040182367A1公开日：20040923
专利附图：
摘要：During a start, particularly during a cold start, of an internal combustion engine
without additional auxiliary drive, a precisely metered fuel mass is introduced into acombustion chamber. In the case of an internal combustion engine having direct fuelinjection, a rail pressure prevailing in a high-pressure accumulator is frequently onlyinsufficiently built up during a start, which has an unfavorable effect on the mixtureformation. To improve the start performance of the internal combustion engine, theinjection pressure available in the high-pressure accumulator is monitored during thestart, and fuel from the high-pressure accumulator is first injected into the at least onecombustion chamber when the injection pressure has reached or exceeded a specifiablethreshold value. This ensures that the rail pressure is high enough, in order to inject asufficient quantity of fuel into the combustion chamber so that an ignitable air/fuelmixture is formed.
申请人：DENZ HELMUT,KUFFERATH ANDREAS,LUDWIG MARTIN
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