By understanding how a common rail fuel system works, we can understand how many modern diesel engines operate. From there, fuel can be injected into the combustion chamber or inlet of the engine depending on the type of system. It has a high-pressure fuel rail, kind of like a pipe that keeps the fuel in place, along with fuel injectors that spray it into the engine.
Common rail technology has revolutionized diesel engines. Older fuel systems in diesel engines gave way to common rail systems. With common rail, the fuel is delivered to the engine at a much higher pressure. This allows the fuel to combust better and the engine to run more efficiently. As a result, diesel cars are less polluting and more fuel-efficient.

A common rail fuel system is used in many automobiles. It saves fuel, reduces pollution and makes the engine run more smoothly. A high-pressure fuel delivery system ensures the engine receives an appropriate amount of fuel at the pertinent moment. This causes the fuel to burn more completely with less loss of fuel. This does not only help you save a lot of money but also keeps the environment from destructive emissions

Maintaining common rail fuel systems is as important as being a good caretaker. Preventative measures such as replacing the fuel filter and using good quality fuel can prevent issues before they occur. If something is wrong, such as the engine misfiring or not accelerating well, a qualified mechanic will inspect the system and resolve issues.

Regardless, common rail technology introduces benefits that cannot be realised with older fuel systems, so it helps to first understand the differences. Conventional fuel systems, such as rotary or inline pumps, deliver fuel to the engine at lower pressure, and are less accurate. Common rail systems, on the other hand, use a high-pressure fuel rail to deliver the right amount of fuel at the proper timing to help the engine produce more power while operating more efficiently.
Derun has been accredited with ISO9001 as well as ISO/TS16949. Derun employs a broad variety of high-quality testing equipment. It also inspects each part before it common rail fuel system the factory.
Derun has set itself the goal of common rail fuel system green companies, and has always put the protection of the environment at the forefront into research and production development. It is also a firm believer in diesel engine powered businesses that have low emissions, low noise high performance, and light pollution.
Derun has more than 300 sets of advanced processing equipment and has introduced the latest production technology in the world, as well as advanced testing and manufacturing equipment, as well as industry introduction of research and development and manufacturing technology. Derun employs more than 360 employees comprising 10 engineers who are senior. Injector valves, fuel injection assemblies, fuel pumps, the nozzles and many more models are being developed with common rail fuel system.
Derun is common rail fuel system the biggest automotive diesel engine parts suppliers in China that has more than 38 years of production experience and more than 1000 parts. The products we sell are sold all over the globe by 300plus suppliers. It has currently set up three companies in China and established cooperative relations with more than 30 countries around the globe.
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