Unit injector system (UIS)

  • Ulrich Projahn
  • Thorsten Allgeier
  • Carlos Alvarez-Avila
  • Guilherme Bittencourt
  • Matthias Hickl
  • Guido Kampa
  • Rainer Merkle
  • Roger Potschin
  • Walter Reinisch
  • Nestor Rodriguez-Amaya
  • Ralf Wurm
Chapter
Part of the Bosch Professional Automotive Information book series (BPAI)

Abstract

In the unit injector system (UIS), the fuelinjection pump, high-pressure solenoid valve and injection nozzle form a single unit. The compact construction – with very short high-pressure lines integrated in the component between pump and nozzle – makes it easier to deliver higher injection pressures compared with other fuel-injection systems because the compression volume 1) and thus the compression losses are lower. The peak pressure in the UIS currently varies, depending on the type of pump, between 1,800 and 2,200 bar.

Keywords

Combustion Diesel 

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Copyright information

© Springer Fachmedien Wiesbaden 2014

Authors and Affiliations

  • Ulrich Projahn
    • 1
  • Thorsten Allgeier
    • 1
  • Carlos Alvarez-Avila
    • 1
  • Guilherme Bittencourt
    • 1
  • Matthias Hickl
    • 1
  • Guido Kampa
    • 1
  • Rainer Merkle
    • 1
  • Roger Potschin
    • 1
  • Walter Reinisch
    • 1
  • Nestor Rodriguez-Amaya
    • 1
  • Ralf Wurm
    • 1
  1. 1.KarlsruheGermany

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