Why Diesel Generator Oil Tank Cover Leave Small Air Hole

Why should diesel generator oil tank cover leave small air hole? 

For diesel generator fuel tank cover why to leave small pores, many friends are not quite understand, after all, it is not sealed. Here, professional generator manufacturers will give us a detailed answer to this problem, we can learn together.

1: In order to avoid the fuel spatter in the tank due to vibration and the loss of oil vapor and external dust entry, the tank should be capped and sealed. However, when the oil level drops due to the consumption of fuel, a certain vacuum degree will be formed in the tank, so that the oil pump loses its ability to absorb oil.

2: when the temperature is very high, fuel evaporation, oil vapor will make the pressure in the tank is too large. Both of these conditions require active communication with the atmosphere when pressure difference occurs inside and outside the tank. To this end, the tank cover is provided with a vent hole to balance the air pressure inside and outside the tank.

3: ensure that the vent on the oil tank cover is smooth in use. If the vent is blocked or when the tank cover is lost, the tank mouth is tied with plastic cloth, then the engine operation will be negative pressure inside the tank due to the decrease of the fuel level, thus showing the engine operation is not smooth, power decline, active flameout and difficult to start in the heat engine state.

Now you know why diesel generators have small air holes in the lid of the fuel tank, which is the inheritance of our experience. If you want to know more about the knowledge of the generator, or want to buy the generator products that can be trusted to use, Guangxi Dingbo Power Equipment Manufacturing Co., Ltd, is your ideal choice, welcome to inquire.

Guangxi Dingbo Power Equipment Manufacturing Co., Ltd. established in 2006, is an manufacturer of diesel generator in China, which integrates design, supply, commissioning and maintenance of diesel generator set. Product covers Cummins, Perkins, Volvo, Yuchai, Shangchai, Deutz, Ricardo, MTU, Weichai etc. with power range 20kw-3000kw, and become their OEM factory and technology center.

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