柴油发动机的点火方式为压燃式，所以无点火系。
Diesel oil engine firing way is that pressure burns style, is therefore there being no firing.
大量研究表明二甲基醚（DME）是压燃式发动机的一种理想清洁代用燃料。
Many investigations indicate that Dimethyl Ether (DME)is an excellent alternative clean fuel for compression-ignition engines.
在一台直喷式压燃发动机上开展了二甲醚燃烧与排放特性的试验与数值模拟研究。
This paper presents an experimental and computational study on the combustion and exhaust emissions in a direct injection compression ignition engine operated on dimethyl ether (DME).
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