Detailed explanation of the working principle of the parking heater (diesel heater)
Detailed explanation of the working principle of the parking heater (diesel heater)
Introduction to the working principle of the parking heater (chai warm)
The car fuel heater, also known as the parking heating system, is an independent auxiliary heating system on the vehicle, which can be used after the engine is turned off, and can also provide auxiliary heating during driving.
It is generally divided into water heating system and air heating system. According to the type of fuel, it can be divided into gasoline heating system and diesel heating system. Most large trucks and construction machinery use diesel gas heating system, and family cars are mostly used. Gasoline plumbing heating system. Because we are a vertical website for special purpose vehicles, all special vehicles use diesel, so we also call the working principle of the parking heater Chai Nuan.
The parking heating system can preheat the engine and warm the cab without starting the engine.
How the parking heating system works
The working principle of the parking heating system is to extract a small amount of fuel from the fuel tank to the combustion chamber of the parking heater, and then the fuel is burned in the combustion chamber to generate heat, heat the engine coolant or air, and then dissipate the heat to the cabin through the radiator At the same time, the engine is also warmed up. In this process, the power of the battery and a certain amount of fuel will be consumed. According to the size of the heater, the amount of fuel required for one heating varies from 0.2 liters to 0.3 liters.
Operating sequence of parking heating system
The parking heating system is mainly composed of intake air supply system, fuel supply system, ignition system, cooling system and control system. Its working process can be divided into five working steps: intake stage, fuel injection stage, mixing stage, ignition and combustion stage and heat transfer stage. When the switch is activated, the heater works as follows:
The fuel is pumped in by the oil pump, vaporized and atomized in the combustion chamber, mixed with the air sucked by the self-combustion air inlet, and burned. The combustion exhaust gas is discharged from the exhaust port. At the same time, the motor drives the fan, and the cold air is sucked in from the air inlet, and the heat generated by the combustion is absorbed by the heat exchanger to become warm air and blown out from the air outlet.