卡特c18发动机电路技术.doc

ACERTTM Technology for 0ff-Highway C18 Engines ACERTTM 技术---C18发动机 What does ACERT stand for? ACERT 代表什么? Advanced 高级 Combustion燃烧 Emission排放 Reduction减少 Technology技术 What is ACERT Technology? ACERT技术是什么? Multiple technologies多重技术 Varies by engine family随发动机系列而变化 Varies by engine application随发动机应用而变化 -Medium duty –specs,change,new design中速 -Heavy duty-specs,change,new design重型 What engines are affected? 发动机受什么影响? C-18 is based off the C15 plateformC18是脱离于C15 平台的 Displacement changes from 15.2 to 18.1ltr排量从15.2变化至18.1升 Bore increase from 137mm to 145mm Stroke increases from 171mm to 183mm How is ACERT Technology Different?ACERT 技术有什么区别? What does ACERT Technology look like? ACERT 技术看起来像什么? How does ACERT Technology work? ACERT 技术是如何工作的? What are the advantages of ACERT Technology?ACERT 技术的优点是什么? Is extra maintenance required?需要哪些额外的维修? C18 Engine power band performance 2100rpm provide widest operating range easiest match in changover 2100rpm 提供了最广泛的运行范围,在转化上更佳匹配 1800rpm provide best fuel economy,best heat rejection,less noise 1800rpm 提供了最佳的燃油经济性,最佳的热量散发,低躁音 Design strategy设计策略 The core strategy for the C18 machine ACERT engine was to build off of the already successful C15. In appearance, the C18 machine ACERT engine is visually similar to the C15 and consumes the same footprint. A displacement increase was achieved with a bore and stroke change. The compression ratio has changed and can be either 16.3:1 or 18:1 based on the rating. Generally, the high HP engines have the lower compression ratio with higher boost than the standard HP ratings. Standard HP ratings usually employ higher compression ration with lower boost settings. The increase in compression ratio has beneficial effects on cold start and white smoke. C 18机具ACERT 发动机核心的设计是脱离于成熟的C15 发动机的.在外观上,C18ACERT 发动机看起来与C 15非常相似.排量的增加是通过缸径和冲程变化来取得的.压缩比变化到16.3:1或18:1.通常,大功率发动机具有低压缩比,高增压.然而标准马力设定用高压缩比和低增压.增加的压缩比对冷起动和冒白烟效果更好. ACERT Multiple injection-多重喷射 One of the key features of ACERT technology is increased so