What is the function of the high-pressure oil pump in automotive components (high-pressure common ra
The main functions of the high-pressure oil pump in the high-pressure common rail components of automobiles are as follows:
1. Generate high pressure: Raise the fuel from a low pressure state to a high pressure state, so that the fuel has sufficient pressure to meet the injection requirements of the injector under different working conditions. Generally speaking, high-pressure fuel pumps can incr
The main functions of the high-pressure oil pump in the high-pressure common rail components of automobiles are as follows:
1. Generate high pressure: Raise the fuel from a low pressure state to a high pressure state, so that the fuel has sufficient pressure to meet the injection requirements of the injector under different working conditions. Generally speaking, high-pressure fuel pumps can increase fuel pressure to several hundred bar or even thousands of bar. For example, in some common diesel engines, high-pressure fuel pumps can increase fuel pressure to around 1600-2000 bar, providing a power basis for fuel injection.
2. Correct fuel supply: Control the fuel supply amount correctly according to the engine's operating conditions, such as load, speed, etc. When the engine is running at high load, more fuel is needed to provide power, and the high-pressure fuel pump will increase the fuel supply; In low load or idle conditions, the fuel supply is correspondingly reduced to achieve rational use of fuel and improve the fuel economy and performance of the engine.
3. Stable oil pressure: Maintain stable oil pressure in the fuel system during engine operation. Through its own working characteristics and control system, it compensates for oil pressure fluctuations caused by factors such as fuel consumption and injector operation, ensuring that the fuel pressure in the high-pressure fuel rail is always maintained within the set range, providing stable pressure conditions for the correct injection of fuel by the injector, thereby ensuring the smooth operation and good emission performance of the engine.
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