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Unit injector system (UIS)

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Diesel Engine Management

Part of the book series: Bosch Professional Automotive Information ((BPAI))

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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.

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Author information

Authors and Affiliations

  1. Karlsruhe, Germany

    Ulrich Projahn Dr.-Ing., Thorsten Allgeier Dipl.-Ing. (FH), Carlos Alvarez-Avila Dipl.-Ing. (HU), Guilherme Bittencourt Dipl.-Ing., Matthias Hickl Dipl.-Ing. Dipl.-Wirtsch.-Ing., Guido Kampa Dipl.-Ing. (FH), Rainer Merkle Dipl.-Ing., Roger Potschin Dipl.-Ing., Walter Reinisch Dipl.-Ing., Nestor Rodriguez-Amaya Dipl.-Ing. & Ralf Wurm Dipl.-Ing.

Authors
  1. Ulrich Projahn Dr.-Ing.
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  2. Thorsten Allgeier Dipl.-Ing. (FH)
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  3. Carlos Alvarez-Avila Dipl.-Ing. (HU)
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  4. Guilherme Bittencourt Dipl.-Ing.
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  5. Matthias Hickl Dipl.-Ing. Dipl.-Wirtsch.-Ing.
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  6. Guido Kampa Dipl.-Ing. (FH)
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  7. Rainer Merkle Dipl.-Ing.
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  8. Roger Potschin Dipl.-Ing.
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  9. Walter Reinisch Dipl.-Ing.
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  10. Nestor Rodriguez-Amaya Dipl.-Ing.
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  11. Ralf Wurm Dipl.-Ing.
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Editor information

Editors and Affiliations

  1. Duale Hochschule Baden-Württemberg, Friedrichshafen, Germany

    Konrad Reif

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© 2014 Springer Fachmedien Wiesbaden

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Projahn, U. et al. (2014). Unit injector system (UIS). In: Reif, K. (eds) Diesel Engine Management. Bosch Professional Automotive Information. Springer Vieweg, Wiesbaden. https://doi.org/10.1007/978-3-658-03981-3_10

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  • DOI: https://doi.org/10.1007/978-3-658-03981-3_10

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  • Publisher Name: Springer Vieweg, Wiesbaden

  • Print ISBN: 978-3-658-03980-6

  • Online ISBN: 978-3-658-03981-3

  • eBook Packages: EngineeringEngineering (R0)

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