Daf offers Deutz with water cooling
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EXCLUSIVE by Alan Bunting.
• Daf Trucks is set to become the first vehicle manufacturer offering Deutz water-cooled diesel engines. Daf is negotiating with Klockner-Humboldt-Deutz for the supply of 715-litre 1013 engines from the German company's highly-automated Cologne Porz plant, for installation in Eindhoven-built 17-26 tonne GVW chassis. Last week's opening of the new plant was attended by Daf technical director and main board member Rico Dietz.
The most powerful chargecooled 1013 engine delivers 190kW (255hp) but a 209kW (280hp) version is under development, says Deutz development director Franz Moser. As well as offering significantly higher performance than either the 5.9-litre Ctunmins B series or Daf's own 6.2-litre engine, currently fitted in Leyland and Eindhoven built 17-tonners, the new Deutz engine offers emission advantages.
Thanks to their unique hybrid fuel system, the 1013 engine and the related 4.8 litre 1012 can meet Euro-2 emissions limits without further modifications, says Deutz. The fuel system uses the camshaft to drive separate fuel pump elements enclosed within the cylinder block wall, feeding conventional Bosch injectors through short, hydraulically "stiff" pipes.
Two types of electronic control are available on the 1012 and 1013 engines. A Bosch EDC equivalent regulates injected fuel quantity only The other uses a metering and timing system with a solenoid spill valve on each pump element, as in Cummins Celect system.
Deutz is confident that this more expensive design would meet 1999/2000 Euro-3 emissions limits.
Deutz would like to supply Daf with the 4.8-litre 1012 engine as an alternative or a replacement to the Cummins B fitted in 45 and 50 Series chassis. A German engine could make the 45 Series even more attractive on the German market. It recorded substantial sales there before reunification problems set in last year.
On the debit side, the Deutz 1012 is relatively heavy for its swept volume, weighing 437kg almost the same as the six-litre Cummins B Series.