Posted on

Understanding The Common Rail Injection System in Diesel Engines

Common Rail System

The common rail system is a cost-effective and fuel-efficient fuel injection system that can provide a number of benefits for diesel engines. Although there are many different fuel injection systems available on the market today, each functions differently and has its own advantages and disadvantages.

Understanding how the common rail system compares to direct fuel injection systems is important to ensure you get the most from your diesel engine. Diesel engines have come a long way from their early beginnings.

Once considered inefficient and costly, diesel fuel is now a popular choice for marine and automobile engines. The benefits of diesel fuel injection systems have continued to be popular.

In fact, the common rail system has become the gold standard for all diesel engines. Fuel injection is a major component of diesel engines, unlike most gasoline engines.

How The Common Rail System Works

A common rail diesel injection system features a high-pressure (1,500 psi) fuel rail that feeds solenoid valves. This is different than a low-pressure fuel pump that feeds unit injectors (or pump nozzles).

The current generation of common rail diesel engines now uses piezoelectric injectors that increase the precision. In these third generation common rail systems, the injectors use fuel pressures of up to 36,000 psi.

The major benefit of high-pressure injection is the power and fuel consumption advantages it has over low-pressure fuel injection systems. This is because injecting fuel as mostly small droplets gives a much higher ratio of surface area to volume.

The surface of the fuel droplets undergoes vaporization and creates a much better combination of oxygen with the vaporized fuel. This creates a much better and more complete combustion.

The best defining aspect of the diesel common rail system is that all of the diesel engine’s cylinders are delivered fuel through a single common fuel rail. When the pressure accumulates, the common rail functions independently from the revving of the engine.

The systems are mechanically and electronically regulated. This makes the combustion process far easier by constantly maintaining pressure throughout.

The pressurized fuel is kept within the common rail separately from the rest of the diesel engine. By separating the pressurized fuel using this method, fuel is used much more efficiently.

Maintaining Diesel Fuel Injection Systems

The use of the common rail system optimizes a vehicle’s fuel economy. The system has been proven to enhance the fuel economy for trucks, cars, and marine vessels of every kind.

Common rail has the added advantage of reducing harmful emissions that are characteristic of other fuel injection systems. Users have also reported improved torque, power, and overall performance of the engine.

Maintaining the health of a diesel engine’s fuel injection system is important to ensure you continue to benefit from this innovative technology. Finding a tea of qualified technicians for common rail fuel injector services in Fort Lauderdale has never been easier with RPM Diesel. Contact us today to learn more.

Facebook | Twitter | Yelp | YouTube

Common Rail System

371 total views, 1 views today