High-pressure pump working principle and structure

High-pressure pump mainly on-cylinder direct injection engine, the fuel in the fuel pump can be pressurized to 3bar - 4bar, into the high-pressure fuel pump, high pressure fuel pump driven by the camshaft, the output of 120-200bar Pressure, and then injected directly into the cylinder through the high-pressure fuel injector. These high pressure injectors are precisely controlled by the engine computer. The fuel is injected directly into the combustion chamber through high pressure to completely atomize it to achieve a full combustion effect. Its principle of high-pressure pump is through the computer control, the fuel injected directly into the combustion chamber accurately. Compared with the traditional gasoline injection system, direct injection system, the biggest advantage is its better thermodynamic effect. Because the gasoline direct injection system can accurately control the amount of gasoline injection according to the engine needs and driving conditions, almost complete combustion can be performed with sufficient air to improve work efficiency. Its user interest is to improve vehicle power at the same time, improve fuel efficiency, thereby reducing fuel consumption and reduce carbon dioxide emissions, to achieve the dual effect of fuel-efficient and environmentally friendly. Under normal circumstances, direct injection engine combustion there are two ways: stratified combustion, homogeneous combustion. The engine is in smooth running conditions, the use of stratified combustion state, when only the spark plug around the better state of the oil and gas mixture is ignited, then the fresh air around and from the exhaust gas recirculation formed a good interval Thermal protection, reducing cylinder wall heat, improve thermal efficiency. Greatly reduce fuel consumption and exhaust emissions. Under accelerated driving conditions, the engine is under more intense operating conditions. In this case, a homogeneous combustion state is used, and the combustion chamber is filled with a uniform mixture of oil and gas to provide sufficient combustion to provide strong power. Related Articles: Centrifugal Pump Parameters Centrifugal Pump Features Analysis