Technical Paper
Development Strategies for Commercial Vehicle Engines for Complying with Euro III Limit with Particular Consideration of the Customer Benefit
1995-10-01
952222
The state of discussion on the new Euro III exhaust gas limits which have not been fixed yet and the test procedure will be presented. The development target at Mercedes-Benz is not only to reach the future limits reliably in standard production before they come into force but also to have the largest possible customer benefit, i. e. in particular favourable manufacturing costs and high fuel economy. An entirely new generation of engines is developed for this purpose. One essential point in this context is the injection system. Mercedes-Benz decided to develop new unit injection pumps with electronically actuated solenoid valves in conjunction with ordinary nozzle holders for high pressure levels, which feature advantages as compared to the known unit injector system. A common rail system providing further potential for a reduction in particulates constitutes an alternative.
