| 车用柴油机变工况下排气微粒的测量 |
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| 引用本文： | 刘忠长,刘巽俊.车用柴油机变工况下排气微粒的测量[J].汽车工程,1997,19(6):342-346. |
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| 作者姓名： | 刘忠长 刘巽俊 |
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| 基金项目： | 国家自然科学基金，国家教委博士点基金，机械部教育司基金资助项目 |
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| 摘 要： | 研制了一种在发动机台架上进行柴油机变工况下排气微粒测量的测试系统。该系统主要由普通测功机和微粒稀释取样袋等组成。用此系统可进行柴油机恒转速扭矩、恒扭矩变转速和转速与扭矩成比例变化等模式变工况的微粒测量。试验结果表明柴油机在不同变工况模式下的微粒和有各自不同的变化规律。
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| 关 键 词： | 柴油机 排气微粒 变工况 测量技术 汽车发动机 |
Measurement of Exhaust Particulates from an Automotive Diesel Engine under Transient Operating Conditions |
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| Abstract: | A system for measuring exhaust particulates from an automotive diesel engine under transient operating conditions was developed, which includes a conventional dynamometer and a dilution sampling bag. Using the system, the particulates emission can be measured under three transient operating modes: constant speed with changing torque, constant torque with changing speed, and speed changes in proportion to the changes of torque. Test results showed exhaust particulates emissions from diesel engine behave differently under different transient operating conditions. |
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| Keywords: | Diesel engine Exhaust particulates Transient condition Measuring technique |
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