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Weichai engine thermal efficiency innovation record

2022-10-24

 Weichai released a brand new engine. The engine body structure has a thermal efficiency of 51.09%, setting a new record.
Although it is only the "ontology structure", the thermal efficiency of 51.09% still makes people feel the future of diesel engines. If it is not for the two reasons of carbon emission constraints and diesel strategic energy reserves, diesel engines must have a very good prospect. Thermal efficiency is a measure of the strength of workmanship. The higher the thermal efficiency, the more workmanship. The performance of an engine with a thermal efficiency of 35% and a thermal efficiency of 45% is completely different.
 
The thermal efficiency of gasoline engines is currently only around 40%, and the thermal efficiency performance in the past was only around 35%. In recent years, the vigorous investment in research and development has greatly improved the thermal efficiency, but the workmanship is still not good.
Due to the advantages of structure, diesel engines make combustion more fully through compression ignition, and the characteristics of homogeneous combustion make combustion more fully. Therefore, the thermal efficiency of fuel vehicles is generally 5%-10% higher than that of gasoline engines.