摘要
利用数据采集和燃烧分析系统,试验研究了喷气时刻对天然气发动机性能的影响,研究表明:节气门开度为25%时,不同转速下,最大IMEP所对应的喷气时刻不同,低转速时,最大IMEP对应的喷气时刻较迟。而转速较高时,最大IMEP对应的喷气时刻较早。
In this paper, a natural gas engine, which was retrofitted from a Toyota 8A gasoline engine, is studied. Based on an electronic control unit, a data acquisition system and combustion analyzer, the effect of injection timing on combustion characteristics are investigated. The results show that at 25 % throttle open po sition and different speed ( 1000rpm and 2000rpm) conditions, the injection timings ( IMEPmax ) of CNG are different. At low speed the injection timing is later. At high speed, however, the injection timing is earlier.
出处
《小型内燃机与摩托车》
CAS
2013年第4期15-17,共3页
Small Internal Combustion Engine and Motorcycle
关键词
喷气时刻天然气发动机
Injection timing, Natural gas, Internal combustion engine