For anyone who has had previous experience with older diesel engine vehicles, they probably because use to the black smoke emulating form the rear of the vehicle, a noisy engine and probably an odd smell from it. Sure, the days of the old VW Rabbit might linger in horror (or some delight) with some drivers when it comes to diesel, but this time is long gone. In fact, modern diesel engines are extremely clean, fuel efficient and cut the noise from the previous offerings. With the help of high injection pressures and computer controls, these engines are now far more powerful and efficient than ever before. With the improvement to the diesel engines, companies such as VW started to release diesel powered vehicles throughout Europe and other locations in the world. Gasoline is far more expensive in Europe than it is in the United States, so using a more fuel efficient option is extremely desirable, which is why diesel has grown in popularity there. With the bump in popularity in Europe, VW decided to release new diesel engine vehicles in the United States, calling it “Pumpe Duse,” which means “pump injectors.”
The majority of diesel engines use a all injection system, which is similar to the gasoline variation, but it provides a higher pressure through the pipes. This allows the fuel all pressure to idle around 14,00 to 16,000 PSI and then exceed 20,000 PSI when the vehicle is under heavier load conditions. Beyond this though, the computer that controls the fuel injection of the diesel engine is able to allow the diesel fuel to spray out the top of the injector, which improves performance as it does not trickle out or drip down the sides.
The VW Pumpe Duse uses a computer controlled electronic solenoid that is in charge of the injector opening, giving each injector its own set pressure pump. This way, it is easier to monitor all of these elements of the vehicle and to provide the best performance as well. With the help of the Pumpe Duse injector, the fuel is supplied though a low pressure line and fuel pump. With the help of the camshaft and rocker arms, the high fuel pressure is able to be injected more efficiently, so it requires less diesel to power the vehicle than what is common with a regular engine.
While there are many different advantages of the Pumpe Duse injection system, one of the most valuable elements is that it can reach 30,000 PSI, which is higher than most traditional gasoline all systems. By increasing the PSI, it improves the atomization of the fuel, which in turn improves and boosts the torque and it also powers the low emissions of the vehicle, providing better fuel economy. With the Pumpe Duse, the engine is able to convert up to 43 percent of the thermal energy generated through the fuel into mechanical energy, which is higher than any other sort of liquid fueled car on the market.
Probably the best results with the Pumpe Duse are seen with the larger Volkswagen vehicles, such as the Touareg SUV. This vehicle uses a V10 diesel engine that puts out 310 horsepower and 553 pound feet of torque. Beyond this, the Pumpe Duse system eliminates many of the most common problems found with the regular engines. With a traditional fuel system, there are often leaks in and around the injector and all system. The Pumpe Duse prevents these from ever developing. With a regular gasoline engine, the only way to correct this problem is to replace the faulty injector, which can become extremely costly for any vehicle owner. Due to the cost associated with it, the owner is more likely to just let it go and accept the drop in performance and fuel economy. As the Pumpe Duse no longer requires anyone to take their vehicle in for such a repair, it has the potential of saving the vehicle owner a considerable amount of money, without needing to ever take their car, truck or SUV in to have it served for this problem.