How a common rail injection system work?
A common rail is one of the most important components in a diesel and gasoline direct injection system. The main difference between a direct and a standard injection is the delivery of fuel and the way how this one mixes with incoming air. In the direct injection system, the fuel is directly injected into the combustion chamber, skipping the waiting period in the air intake manifold. Controlled by the electronic unit, the fuel is squirted directly where the combustion chamber is hottest, which makes it burn more evenly and thoroughly.
The main advantages of the common rail direct fuel injection can be summarized in reduction of exhaust and noise emissions, better fuel efficiency and improved overall engine performance. The
system consists of a high-pressure pump, injectors, a rail, and an electronic control unit.
Common rail Injector as one of most important components in common rail injection system, It is an accessory that must be replaced at high frequencies in the system.
CHINA-LUTONG is specialize in providing high quality common rail injectors.
The merits of the common rail fuel injection system architecture have been recognized since the development of the diesel engine.Lower fuel pump peak torque requirements. As high speed direct injection (HSDI) engines developed, more of the energy to mix the air with fuel came from the fuel spray momentum as opposed to the swirl mechanisms employed in older, IDI combustion systems. Only high pressure fuel injection systems were able to provide the mixing energy and good spray preparation needed for low PM and HC emissions. To generate the energy required to inject the fuel in approximately 1 millisecond, the conventional distributor pump would have to provide nearly 1 kW of hydraulic power in four 1 ms bursts per pump revolution, thus placing considerable strain on the drive shaft. One of the reasons behind the trend toward common rail systems was to minimize the maximum pump torque requirement. While the power and average torque requirements of the common rail pump were similar, high pressure fuel delivery is to an accumulator and thus the peak flow rate (and peak torque required to drive the pump) does not have to coincide with the injection event as is the case with the distributor pump. Pump discharge flow can be spread out over a longer portion of the engine cycle to keep pump torque demand more even.
Improved noise quality. DI engines are characterized by higher peak combustion pressures and, thus, by higher noise than IDI engines. It was found that improved noise and low emissions were best achieved by introducing pilot injection(s). This was most easily realized in the common rail system, which was capable of stable deliveries of small pilot fuel quantities over the entire load/speed range of the engine.
Diesel injector | 093500-4042. | With nozzle DN4PD681 |
Diesel injector | 093400-5640. | With nozzle DN4PD57 |
Diesel injector | 093500-4042 | With nozzle DN4PD57 |
Diesel injector | 3L-5320 | With nozzle DN20PD32 |
Diesel injector | 3L-5760 | With nozzle DN10PD76 |
Diesel injector | 093500-4042.. | With nozzle DN0PD619 |
Diesel injector | 3L-6190 | With nozzle DN0PD619 |
Diesel injector | 093500-3460 | With nozzle DN0PD37 |
Diesel injector | 0 432 231 831 | With nozzle DLLA158S766 |
Diesel injector | 0 432 231 848 | With nozzle DLLA155S729 |
CNDIP Common Rail Injector Nozzle DLLA140P1723 Injector Nozzle DLLA140P1723 Fuel Nozzle for Bosch Injector 0445120123 DIP (Diesel INJECTION PARTS) PLANTS is a manufacturer specialized in diesel fuel injection parts & components. The product line includes Injection Nozzles, ...
CNDIP 共轨喷油嘴 DLLA140P1723 喷油嘴 DLLA140P1723 博世喷油器燃油喷嘴 0445120123 DIP (Diesel INJECTION PARTS) PLANTS 是一家专业生产柴油喷射零部件的制造商。产品线包括注射喷嘴、泵元件(柱塞筒)、输送阀、头转子、VE ...