【作者】

Kilian Zimmermann

【摘要】

该论文已在芬兰赫尔辛基举行的第28届CIMAC大会上发表。论文的版权归CIMAC所有。This paper presents the design of the Ganser CRS common rail injectors with the proprietary poppet valve, the state of the art hydraulic switching component for common rail injectors. Thanks to its unique design, the combustion process is optimized by stable and rapid injection profiles, which are allowing for reliable multiple injection driving strategies to further reduce the in-cylinder emissions. Due to its universal characteristics, the poppet valve is applicable in numerous fields, of which two of them are specifically presented in this paper. The first exemplary application of the poppet valve is the common rail retrofit of a 16V ALCO locomotive engine with a power output of 3MW. In this retrofit project, the existing mechanical fuel injection system is replaced by a tailor-made common rail system. Thanks to the unique injector design, no changes to the cylinder head are necessary. The injector includes an integrated accumulator for maximized and constant injection pressures during the whole injection process. Each cylinder bank is equipped with a separate slim rail and a dedicated high pressure pump, allowing for a freely configurable injection up to 1600bar. The poppet valve is also successfully applied in the field of micro pilot injection for new dual fuel engines. On these marine engines, the micro pilot injection quantity to ignite the gas is typically 0.5-2% of the total power output. This maximized substitution is possible thanks to the accurate switching characteristics of the poppet valve at these small injection quantities. With the application of the proprietary Wave Dynamics and Dampening System (WDD) and injector-integrated accumulators, the rail can be replaced completely by so-called jumper lines.

【会议名称】

第28届CIMAC会议

【会议地点】

芬兰 赫尔辛基

【下载次数】

2

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