【作者】

Robert Mischler,Paul Flynn

【摘要】

论文已在上海2013年CIMAC大会上发表，论文版权归CIMAC所有。 GE Transportation is in the process of updating its EVO and Power haul line of diesel engines to meet the requirements of EPA Tier 4 and EU Stage lllB emissions standards. The base engine with the largest production volumes continues to be the loco-motive version of the 12 cylinder EVO rated at 3375kW. Additionally, in-line 6 and 8 cylinder and vee 12and 16 cylinder versions of the EVO engine are underdevelopment to serve the marine market along with an update to the Power haul 16 cylinder engine for the European locomotive market. The EVO engine has been one of GE Transportation's most successful products. Over 5000 engines have been built to date. The product line has been expanded to from its original offering to serve higher power applications and the marine market. This engine has also undergone a pervious emissions update to meet the requirements of EPA Tier 3 with the introduction of common rail and Miller Cycle. Tier 4 emission levels for U.S. locomotives present significant challenges in the reduction of NOx and particulate emissions compared to Tier3. These challenges require the introduction of technologies such as Aftertreatment, Exhaust Gas Recirculation (EGR), Advanced Turbocharging, Aggressive Miler Cycle, Variable Valve Timing, and Higher Pres-sure Common Rail. This paper will cover the concept selection process by which these various technologies were evaluated and the selection of the best concept to serve GE Transportation's customers. The selection process included a combination of modeling and single cylinder research engine testing to evaluate the various emission reduction technologies. The first field trials of the EPA Tier 4 compliant EVO engine are scheduled for spring of 2013.

【会议名称】

第27届CIMAC会议

【会议地点】

上海

【下载次数】

1

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