The Upcoming Generation of Common Rail Injection Systems for Large Bore Engines From L’Orange GmbH

In August 1997 L’Orange GmbH launched the first electronic common rail injection system in the world for application to mtu and DDC series 4000. This had a major impact on the entire Diesel engine industry as it made possible the highest improvements in fuel efficiency, exhaust-emissions and black smoke, power and torque. In the past five years, a complete range of common rail injection systems for Diesel, micro pilot, water and heavy fuel oil injection between 100 and 1050 kW/cyl have been introduced to the market by L’Orange. Design and performance of these injection system types will be reviewed in brief. The evaluation of these systems including comparison of advantages and disadvantages led to the next generation concepts and design. One of the next generation type heavy fuel oil common rail injection systems will be presented in detail.