1.柴油机冬季启动难的主要原因柴油机的启动性能,不仅决定于其本身的技术状况,还受外界气温的影响。冬季低温下启动更困难的主要原因是:(1)冬季气候寒冷,环境温度低,机油黏度增大,各运动机件阻力增加,使启动机转速降低;(2)蓄电池容量随温度下降而减 1. Diesel engine start-up in winter the main reason Difficulties in diesel engine start-up performance, not only depends on its own technical conditions, but also by the influence of outside temperature. The main reasons why it is more difficult to start in winter at low temperature are as follows: (1) cold winter climate, low ambient temperature and increased oil viscosity increase the resistance of the moving parts and reduce the speed of the starter; (2) the capacity of the battery decreases as the temperature decreases