September 19, 2006: Bosch has developed a common-rail system particularly for off-highway applications, light and medium-sized commercial vehicles, in which the injection pressure is built up by two pumps driven by the engine's camshaft instead of the more commonly used radial pistol pumps. The advantage for the engine manufacturer is that so-called "plug-in pumps" can easily and economically apply a modern, electronically controlled common-rail system with 1600 bar injection pressure. For small diesel engines in construction machines and agricultural vehicles, Bosch has developed a cost-efficient common-rail system that generates up to 1100 bar of injection pressure.

The Unit-Injector System (UIS) integrates the injection pump and nozzle for each cylinder into a single assembly. The pump pistons are driven by the engine's camshaft and generate an injection pressure of up to 2200 bar for each cylinder separately. In the Unit-Pump System (UPS), a high-pressure pump with an integrated solenoid valve, a short injection line, and an injector is assigned to each individual cylinder. The camshaft is again used to drive the fuel pumps.

Bosch has developed the new EDC 17 control unit. Among other things, the Electronic Diesel Control (EDC) controls all the parameters that are significant for economical, low-emission combustion. Because the computing power and functional scope of the control unit can be adapted to a variety of requirements, it can be used very flexibly for all segments in any of the world's markets.