Diesel Engine
(6)
Gasoline Engine
(6)
Gasoline Generators
(16)
Power Generators
(8)
Gas Generators
(3)
Welding Machine
(2)
Lawn Mower
(3)
Diesel generators are internal combustion engine driven generator. It started fast, easy to operate. But the high cost of engine power, so the main diesel generator for emergency standby power, or in the mobile station and a number of large power grids have not yet reached the regions. Diesel generator speed is usually 1000 r / min below the capacity of a few kilowatts to several thousand kW, 200 kW in particular the following units used more often. It creates simple. Diesel engine output shaft torque ripple periodically, so the vibration generator in the severe conditions. Therefore, the structural components of diesel generators, in particular, the shaft must be of sufficient strength and rigidity to prevent fracture due to vibration of these parts. In addition, to prevent the torque ripple caused by uneven generator angular velocity, causing voltage fluctuations caused by flashing lights, diesel generator rotor also requires a greater moment of inertia, and the shaft should be made with the natural frequency of torsional vibration Engine torque ripple in either the frequency of the alternating component of more than 20% difference, so as to avoid resonance, resulting in broken shaft accident.
