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The main distinguishing feature of the system is the ability to provide power with the minimum consumption of fuel. Moreover, common rail fuel can reduce the number of emissions.
Reviews of drivers show that the vehicles with the common rail pumping run with less noise. Moreover, it has a wide range of fuel pressure control and Common Rail Pumps Timing.
Based on its unique design, the common rail is a system with a high-pressure circuit. When the engine is running, fuel is pumped directly.
Many elements relate to the operation of the system; one of them is the common rail pump pressure, which shows that the dispensing valve and pressure regulator are also used in work.
The common rail pumps serve to create a high-pressure liquid. The levels depend on the engine load and crankshaft speed. On diesel engines, revolutions are regulated not by opening the throttle, but by the part of the fuel supply, which is regulated by the common rail pump.
The common rail pump is very complex and sensitive, which makes it the most expensive component of a diesel car, excluding the main units.
Here happens the accumulation of fuel under high pressure, mitigating pressure fluctuations and distributing fuel to the common rail pumps.
The injectors also control the amount of fuel that is fed directly to the cylinder. The element is connected directly to the ramp.
In the final stage, fuel is supplied by operating the solenoid valve.
At present, there are two major types of common rail pumps used in the market, which are:
The speed of these items is too high, and they are very common. However, the common rail pump repair is impossible to produce by itself, due to the complexity of the design and settings. Therefore, all work related to system maintenance is carried out only in specialized service stations, which is the main negative side of common rail pumps.
The operation of the common rail pumps is controlled by the diesel engine management system. The latter include actuators, sensors, and electronic control units. Many important parameters are taken into account, such as:
As for the engines, these are the above injectors, ramp, pumps, regulator, and valves.
Based on the signals received by the monitoring sensors, the system generates the right amount of fuel. It is fed through the metering valve. The fuel will fall into the pump, and then the pressure will go to the ramp.
The necessary pressure is held in by a special regulatory body. At a certain moment, the signal comes from the computer to the injector, and the channels open for a certain period of time.
Depending on the engine’s operating mode, the fuel quantity and pressure can be changed automatically by the system based on data from the oxygen sensor. However, the range should be small.
There are three main types of common rail pumps procedures, which are:
The main aim of this type is to increase pressure and temperature in the combustion chamber. Thus, accelerated ignition of the main charge and reduction of engine noise is achieved.
The initial injection can be different, depending on the operating mode of the engine. Therefore, at idle, it is produced twice.
The main injection is intended to provide work directly from the engine. This type of injection is not divided into subtypes.
Elective injection, or an additional one, reduces the level of toxicity of exhaust gases. So, the information from the oxygen sensor is sent to the computer, after which another portion of the fuel is fed. Harmful substances are burned in the catalytic converter.
A common rail pump is the main piece of the puzzle in the system injection process.
It is available in many companies, and Maktest is one of the best production companies of common rail pumps in the world.
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