Diesel Generator Tech

Types of diesel Diesel is divided into three grades of superior grade, first grade and qualified by quality. Each grade of diesel can be divided into 10th, 0th, -10th, -20th - 35th and -50th No. Six degrees. No. 10 indicates that its freezing point is not higher than 10 ° C. For the rest, the specifications of diesel are shown in Table 3-1 on the next page. Performance requirements for diesel fuel In order to ensure the normal combustion of diesel oil in high speed diesel engine, as follows: 1. Good combustibility, suitable cetane number, low spontaneous combustion point, complete combustion, good engine stability and no-knock phenomenon. 2. Good evaporation performance, appropriate evaporation rate, larger proportion of light fraction, otherwise it will increase engine fuel consumption, wear and tear, and power loss. 3. The viscosity of diesel should be suitable, that it has good fluidity to ensure the lubrication of high pressure oil pump and the quality of sp...