Unit pump

Unit pump
Unit pumps on Mack's E7 diesel engine

The Unit Pump system [1] is a modular high-pressure diesel injection system, which is closely related to the Unit Injector system UI, and is designed for use in commercial vehicle diesel engines.[2]

The systems use an individual injection pump mounted on the engine block for each cylinder so it is primarily designed for OHV or "cam in the block" engines.[3] The fuel pumps are driven by an extra camshaft lobe where each pump unit is connected to the injector via a short precise length high-pressure fuel line as opposed to Unit Injector systems which combines both a pump and an injector element in a compact unit.

Both systems feature electronically controlled fuel solenoids for precise timing and the injection of fuel quantity is variably adjusted for each cylinder.

Contents

Applications

[5] and Western Star by Detroit Diesel made [6] MBE 4000 engine [7]

See also

Unit Injector

References

  1. ^ R. Bosch. "UPS Unit Pump Systems". http://rb-k.bosch.de/en/powerconsumptionemissions/dieselsysteme/dieselsystem/commercialvehiclesystems/injectionsystems/ups/index.html. Retrieved 5 December 2009. 
  2. ^ Diesel Fuel Injection. Germany: Robert Bosch GmbH. 1994. p. 147. ISBN 1-56091-542-0. 
  3. ^ Delphi. "Delphi electronic unit pump". http://delphi.com/manufacturers/cv/powertrain/fuel-pumps/diesel-electronic-unit-pump/. Retrieved 5 December 2009. 
  4. ^ Freightliner Trucks. "Freightliner business clas M2 line of trucks" (PDF). Freightliner LLC. http://www.freightlinertrucks.com/media/pdf/M2_Brochure.pdf. Retrieved 5 December 2009. 
  5. ^ Freightliner Trucks. "Freightliner Columbia" (PDF). http://www.freightlinertrucks.com/media/pdf/columbia_brochure.pdf. Retrieved 5 December 2009. 
  6. ^ Detroit Diesel. "MBE 4000 engine". http://www.detroitdiesel.com/engines/mbe4000/. Retrieved 5 December 2009. 
  7. ^ Western Star Trucks. "MBE400". http://www.westernstartrucks.com/components/mbe4000/. Retrieved 5 December 2009. 

External links



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