Dongfeng sprinklers now use almost all high-pressure common-rail engines. What is high pressure common rail?
1. High-pressure common rail means that several injectors share a high-pressure rail. The pressure in the rail is established by the high pressure pump.
2. In this fuel injection system, eliminating the influence of pressure generation and fuel injection batches in the traditional fuel supply system, the injection pressure generation is not completely dependent on the engine speed and fuel injection amount, and the fuel is stored under pressure. The fuel injection is always ready in the high pressure fuel rail.
3. The work of the high pressure common rail electronically controlled diesel engine is completely controlled by the ECU. The ECU determines the engine operating conditions based on the current engine speed, coolant temperature, atmospheric pressure, and driver requirements.
4. Because the high-pressure common rail Electronic Control System provides the ideal air/fuel mixture for the engine, it can meet the diesel emission regulations. Compared with traditional diesel engines, it makes the vehicle's noise, driving comfort, power, and emissions all greatly improved.
Car air-conditioning system is to achieve the air in the compartment refrigeration, heating, ventilation and air purification device. It can provide passengers with comfortable ride environment, reduce the fatigue strength of drivers and improve the safety of driving.
Type:
1, according to the driving mode is divided into: independent (dedicated one engine-driven compressor, large refrigeration capacity, stable work, but high cost, large volume and weight, used for large and medium-sized passenger cars and non-independent (air conditioning compressor driven by the Car Engine, refrigeration performance by the engine parts work, stability, poor, more for small passenger cars auto parts).
2, according to the performance of the air-conditioning is divided into: a single functional (refrigeration, heating, ventilation system installation, separate operation, Non-interference, and more for large passenger cars and trucks) and warm and cold integrated (refrigeration, heating, ventilation, common blower and air duct, on the same control board control, Work can be divided into warm and cold wind separate work of the combined and warm wind can work at the same time mixed thermostat. The car uses the mixed thermostat type more.)
3, according to the control method is divided into: Fully automatic adjustment (using the calculation of the comparison circuit, through the sensor signal and the modulation signal control regulator work, automatic regulation of temperature and air volume) and computer-controlled automatic regulation (with microcomputer as the control center, to achieve a full range of car air environment, multi-functional optimal control and adjustment).
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