The start-up of diesel generator depends not only on its technical conditions, but also on the influence of external temperature. According to the manufacturer of gas generator set, it is difficult to start at low temperature in winter, mainly due to the following reasons.
In winter, the climate is cold, the environment temperature is low, the viscosity of oil is increased, the friction resistance of all moving parts is increased, the starting speed is reduced and the starting is difficult.
Secondly, the battery capacity decreases with the decrease of temperature, which further reduces the starting speed.
3. The decrease of initial speed, the increase of leakage of compressed air, the increase of heat dissipation of cylinder wall, the decrease of compression of air temperature and pressure greatly lead to the increase of ignition delay time of diesel, even unable to burn in serious cases.
4. The increase of low temperature viscosity of diesel will reduce the injection speed, and the compression of low vortex velocity, temperature and pressure will lead to the injection of diesel with poor atomization quality into the engine cylinder, which is difficult to form a good combustible gas and air to ignite and burn quickly and timely, or even fail to ignite, leading to the difficult start.
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