...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Automotive engineering international >Scholl of hard No{sub}x: For light-duty diesels to succeed in the U.S., they'll first have to pass ultra-stringent 2007-2010 emissions standards - and keep costs reasonable. Aftertreatment technologies are critical for diesels to make the grade
【24h】

Scholl of hard No{sub}x: For light-duty diesels to succeed in the U.S., they'll first have to pass ultra-stringent 2007-2010 emissions standards - and keep costs reasonable. Aftertreatment technologies are critical for diesels to make the grade

机译：严格的准则：要使轻型柴油在美国取得成功，它们首先必须通过超严格的2007-2010年排放标准-并保持合理的成本。后处理技术对于柴油的等级至关重要

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

When announced five years ago, the current Tier 2 U.S. federal emissions standards looked like a death sentence for light-duty diesel engines in the U.S. market. For the first time, all cars and light trucks are required to meet the same tailpipe emissions levels, regardless of fuel type. Gasoline engines are expected to breeze through Tier 2 certification with only minor calibration tweaks. "I don't see any real challenges," noted John German, Honda of America's Manager of Environmental and Energy Analysis. But for automakers wanting to sell diesel-powered cars and light trucks in the U.S. market - particularly at a time when interest in fuel efficiency is growing - Tier 2 remains daunting. Its toughest bogey is NO{sub}x (oxides of nitrogen) emissions, which are primarily a function of an engine's peak combustion temperatures and pressures.
机译：当五年前宣布时，现行的Tier 2美国联邦排放标准看起来像是对美国市场上的轻型柴油发动机的死刑判决。不论燃料类型如何，所有汽车和轻型卡车都首次需要满足相同的排气管排放水平。汽油发动机有望通过第2层认证轻而易举地进行少量校准调整。本田美国环境与能源分析经理约翰·德意志说：“我看不到任何真正的挑战。”但是对于想要在美国市场上销售柴油动力汽车和轻型卡车的汽车制造商-特别是在对燃油效率越来越高的需求之时-Tier 2仍然令人生畏。它最难的忌是NO {sub} x（氮的氧化物）排放，这主要是发动机峰值燃烧温度和压力的函数。

著录项

相似文献

  • 外文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号