SSP 209 – 1.9L TDI-Engine with Pump Injection System
Modern Diesel Engines and Pump Injection Systems
The demands on modern diesel engines—regarding performance, fuel economy, exhaust emissions, and noise levels—are constantly increasing.
Good mixture preparation is a key factor in meeting these requirements. This requires efficient injection systems that produce high injection pressures to ensure fuel is finely atomized, and precise control of injection timing and fuel quantity. The pump injection system meets these demanding requirements.
Rudolf Diesel himself envisioned combining the injection pump and injector into a single unit to eliminate high-pressure lines and achieve higher injection pressures. However, he did not have the technical means to realize this idea. In 1905, Diesel came up with the concept of a pump injector.
Mechanically controlled pump injection systems have been used in ships and trucks since the 1950s. For the first time, Volkswagen, in collaboration with Robert Bosch AG, has successfully developed a solenoid valve-controlled pump injection system suitable for passenger cars.
This engine represents a step into the future, meeting the high demands for performance and clean emissions. At this rate, Rudolf Diesel’s vision of “smoke- and odour-free exhaust gases” may one day become reality.