A University Consortium on Low Temperature Combustion for High Efficiency, Ultra-Low Emission Engines

Assanis, Dennis N.¹  Atreya, Arvind¹  Chen, Jyh-Yuan²  Cheng, Wai K.³ 

[1] Univ. of Michigan, Ann Arbor, MI (United States);Univ. of California, Berkeley, CA (United States);Massachusetts Inst. of Technology

关键词: COMBUSTION;    COMPRESSION;    EFFICIENCY;    ENGINES;    FUEL CONSUMPTION;    GASOLINE;    IGNITION;    MANAGEMENT;    STABILITY;    STRATIFICATION;    TEMPERATURE DEPENDENCE;    TRANSIENTS;   

DOI  :  10.2172/1018686
RP-ID  :  None
PID  :  OSTI ID: 1018686
Others  :  TRN: US201114%%456

美国|英语

来源: SciTech Connect

【 摘 要 】

The objective of the University consortium was to investigate the fundamental processes that determine the practical boundaries of Low Temperature Combustion (LTC) engines and develop methods to extend those boundaries to improve the fuel economy of these engines, while operating with ultra low emissions. This work involved studies of thermal effects, thermal transients and engine management, internal mixing and stratification, and direct injection strategies for affecting combustion stability. This work also examined spark-assisted Homogenous Charge Compression Ignition (HCCI) and exhaust after-treatment so as to extend the range and maximize the benefit of Homogenous Charge Compression Ignition (HCCI)/ Partially Premixed Compression Ignition (PPCI) operation. In summary the overall goals were; Investigate the fundamental processes that determine the practical boundaries of Low Temperature Combustion (LTC) engines; Develop methods to extend LTC boundaries to improve the fuel economy of HCCI engines fueled on gasoline and alternative blends, while operating with ultra low emissions; and Investigate alternate fuels, ignition and after-treatment for LTC and Partially Premixed compression Ignition (PPCI) engines.