发电类柴油机
配发电机组的D系列柴油机功率范围为20.6-44KW，为了满足发电机组50Hz和60Hz两种不同频率的需要，其转速分为1500r/min和1800r/min。同时495BD发电机组是连续三次荣获国家金质奖的495B型柴油机的变形产品。
柴油机进气方式有自然进气和增压两种，其输出端的连接尺寸符合IMB34标准或SAEB标砖。该机可增设温度、压力和转速传感器，还可根据用户要求进行特殊设计。
The power range of D series diesel engine matched with generatorset is from 20.6-44KW. In order to meet the neeeds for twodiffcrcnt frequencies 50Hz and 60Hz of generator set, the rated speed can be either at 1500r/min or and 1800r/min. 495BD generator set is a modified version of Model 495B Diesel engine which has been awarded continuously the National Golden Medal prize thrice.
There are two kinds of air feeding of diesel engine, natural aspirated and turbocharger type, and the connecting dimensions of output end are in compliance with IMB34 international standard or SAE standard. This engine can be equippped additionally with emperature pressure, speed sensors and special design can be performed according to the customer's requirement.
技术规格 Specification
| 型号 Model | 395BD | 495BD | 495BZD | 4100BD | 4102ZD |
| 气缸数 Number of cyinders | 3 | 4 | 4 | ||
| 气缸直径 Cylinder bore (mm) | 95 | 95 | 95 | 100 | 102 |
| 活塞行程 Piston stroke (mm) | 115 | ||||
| 总排量 Total displacement(L) | 2.45 | 3.26 | 3.26 | 3.61 | 3.76 |
| 压缩比 Compression ratio | 16.5:1 | 16.5:1 | 17.5:1 | 17.5:1 | |
| 发火次序 Firing order | 1﹣3﹣2 | 1-3-4-2 | |||
| 标定转速 Rated speed(r/min) | 1500(1800) | 1500 | 1500(1800) | 1500 | |
| 标定功率 Rated power(KW) | 20.6(24.8) | 28.0(33.0) | 34.3 | 31.6(37.9) | 44 |
| 1小时功率 One hour power(KW) | 23.5(27.3) | 30.8(36.3) | 37.7 | 34.8(38.5) | 47 |
| 额定燃油消耗率 Specific fuel consumption(g/KW.H) | ≤251.6 | ≤242 | |||
| 稳定调速率 Steady speed regulation | ≤5% | ||||
| 瞬态调速率 Instantaneous speed regulation | ≤10% | ≤7% | |||
| 转速稳定时间 Time required to steady speed(s) | ≤5% | ||||
| 转速波动率 Fluctuation rate of speed | ±0.5% | ||||
| 净质量 Net mass(Kg) | 300 | 330 | 370 | 340 | 360 |
| 型号 Model | 普通型 General | |||
| 395BD | 495bd | 4100BD | 495BZD | |
| A | φ350 | φ400 | ||
| B | φ265 | φ300 | φ350 | |
| C | φ230 | φ250 | φ300 | |
| D | 4﹣φ13 | 4﹣φ17﹢0.12 ﹢0.06 | 4﹣φ17﹢0.12 + 0.06 | |
| E | 216 | 214 | 247 | |
| F | 113 | |||
| G | 90 | |||
| H | 8.5 | 6.5 | ||
| I | 241 | 272 | ||
| J | 219 | 251.5 | ||
| K | 147 | 267 | ||
| L | 148.5 | 492.5 | ||
| M | 45 | 71 | ||
| 型号 Model | 配SAE 飞轮壳SAE flywheel house | ||
| 395BD | 495BD | 4100BD | |
| A | φ450 | ||
| B | φ428.6 | ||
| C | φ409.58 | ||
| D | 12﹣φ3/8*（16牙/时Teeth/inch)+0.09 +0 | ||
| E | 117.6 | 159.55 | |
| F | ﹣﹣﹣﹣ | ||
| G | 90 | 118 | |
| H | 9.5 | 6.5 | |
| I | 241 | 272 | |
| J | 219 | 251.5 | |
| K | 147 | 267 | |
| L | 418.5 | 492.5 | |
| M | 45 | 71 | |
1风扇中心线 2水箱 3左、右底脚 4飞轮 5半联轴器
1.Central line of the fan 2. Randiator 3. The left, Right pedestal 4. Flywheel 5. Half corpling
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