1. Use preheat to increase the intake air temperature; The most important parameter affecting the cold starting performance of the diesel engine is the temperature of the oil and compressed gas. Increasing the diesel engine compression ratio and intake air temperature can increase the intake air temperature. temperature in the combustion chamber, thus favoring the fire of the diesel engine when the engine is cold started. Install a glow plug or flame heater in the diesel engine intake pipe to preheat the intake air flow; You can also use combustion preheating to burn a small amount of fuel in the diesel engine intake manifold to preheat the intake air stream.
2. Use preheat to increase the coolant temperature; the increase in the temperature of the liquidCooling ide is an important measure to reduce the heat transferred from the gas in the cylinder to the wall of the combustion chamber. A heater is installed in the diesel engine cooling system to heat the diesel engine coolant and increase the overall temperature, thereby reducing friction and wear between the cylinder and piston, bearings and other parts, and reducing diesel resistance. engine during a cold start.
Poor cold starting performance of diesel engines is a major problem when operating diesel engines. It is of practical importance to analyze the influencing factors of cold start of diesel engines and put forward suggestions. measures to improve the cold starting performance of diesel engines. In addition to optimizing the design of the diesel engine itself to improve starting performanceAt low temperature of diesel engine, the most important thing is to adopt low temperature auxiliary measures. At present, the main measures to improve the starting performance of diesel engines include heat preservation and preheating.