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Air Intake Modules with Integrated Indirect Charge Air Coolers

  • Stehlig Juergen
  • Dingelstadt Rene
  • Ehrmanntraut Johann
  • Mueller Rolf
  • Taylor James
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 190)

Abstract

Gasoline downsizing and turbocharging has become a key contributor to respect future legislation regarding CO2 emissions and engine dynamics. In turbocharged engines, increasing charge pressure will cause rising charge air temperatures. Increased charge air temperatures also increase the thermal strain on charge air cooler and air intake module, and have a negative effect on combustion. As a result, the engine’s response characteristics and torque output will deteriorate, accompanied by increased fuel consumption. By cooling the charge air, combustion is improved significantly, and the tendency to knocking decreases. At full load, the spark can be advanced, and combustion can be more efficient. Due to the higher mass flow, the turbocharger will also respond more readily. At lower engine speeds, this will lead to improved dynamics and torque. At high speed and load, the cooled charge air will also reduce the requirements for overfueling and thus fuel consumption. We have investigated the effects of charge air temperature on combustion in a 1.2 L three-cylinder gasoline engine. Our results show improvements in consumption, torque and dynamics. At increasing specific and absolute engine performance, even higher potentials can be expected.

Keywords

Charge air cooling Turbocharging Downsizing CO2 reduction Reduction of fuel consumption 

References

  1. 1.
    Zuck B (2012) Downsizing—Auswirkungen auf das Wärmemanagement Proceedings. Wärmemanagement des Kraftfahrzeugs VIII expert-VerlagGoogle Scholar
  2. 2.
    Eilemann A, Stehlig J (2011) Indirekte Ladeluftkühlung—Ein Wegbereiter zur CO2 Reduzierung OEM SupplierGoogle Scholar
  3. 3.
    Szengel R et al (2007) Der TSI-Motor mit 90 kW MTZ 07-08 2007Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Stehlig Juergen
    • 1
  • Dingelstadt Rene
    • 2
  • Ehrmanntraut Johann
    • 3
  • Mueller Rolf
    • 3
  • Taylor James
    • 4
  1. 1.MAHLE Filtersysteme GmbHGermany
  2. 2.MAHLE International GmbHGermany
  3. 3.Behr GmbH & Co. KGStuttgart-FeuerbachGermany
  4. 4.MAHLE Powertrain LtdNorthamptonUK

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