Diesel engine load change, the speed change. Specifically is:
Load decreases, the speed increases, the speed increases in the cycle of oil pump increases, increase the fuel cycle and the rotation speed is increased further, so continue to cause vicious spiral, the engine speed is more and more high speed, finally; conversely, when the load increases, the speed is reduced, resulting in lower speed cycle of oil piston pump decreases, increase the fuel cycle and lead to further reduce the speed, causing the engine speed is more and more low, finally cut out; to change this vicious spiral, requires a can automatically adjust the fuel according to the load change. Automatic control mechanism for stabilizing operation of diesel engine in specified speed range. Mobile oil supply rod, can change the cycle of fuel supply, so that the engine speed is basically unchanged.
The diesel engine to meet the use requirements, you must install the governor. Governor of diesel generator currently used at home and abroad for the general electronic speed control, but there are some mechanical speed. Electronic speed control can automatically adjust the throttle is not good, it can be fuel-efficient. While the mechanical governor, the throttle is fixed, so the fuel consumption is relatively high, the general power generating unit is the use of electronic governor, and all the domestic diesel generator is the use of mechanical governor, generating units of production are basically for the electronic governor, you can save some fuel consumption.