Skip to content
  • Newsletter
  • About us
  • Contact
  • DE
  • EN
  • Newsletter
  • About us
  • Contact
  • DE
  • EN
  • Overview
  • Research
  • Here & now
  • Smart minds
  • Overview
  • Research
  • Here & now
  • Smart minds
  • Overview
  • Research
  • Here & now
  • Smart minds
  • Contact
  • Newsletter
  • About us
  • Overview
  • Research
  • Here & now
  • Smart minds
  • Contact
  • Newsletter
  • About us
Search
  • DE
  • EN
3. June 2019

Micro dimples for friction reduction in heavy-duty diesel engines

IFW, ITV | To increase the efficiency of combustion engines, researchers of IFW and ITV are doing research on how to reduce friction losses in engines. For this purpose, they are machining micro dimples in cylinder liners to investigate their friction-reducing properties.

In Germany, about twelve percent of the CO2 emissions are produced by the transport sector. One reason is the low efficiency of under 40 percent of combustion engines which is caused by internal thermal and mechanical losses. About 50 percent of the mechanical losses in a combustion engine are due to friction between the cylinder liner and the piston with its piston rings.
Within the scope of a research project, the Institute of Production Engineering and Machine Tools (IFW) and the Institute for Technical Combustion (ITV) of Universität Hannover are developing production strategies to reduce friction in heavy-duty diesel engines.

by Christopher Schmidt

Similar posts

  • “As-built“ scan enables creation of digital twins
  • Randzoneneigenschaften prozesssicher definieren
  • Fräsen und Bohren: Ein Roboter lässt die Späne fliegen

Benefits derived from research results

  • Machining of micro dimples reduces engine friction.
  • Machining is possible using different machining methods.
  • The productivity of the machining process has to be increased to achieve a benefit for industrial production chains.
IFW_Reibungsminderung_im_Schwerlast-Dieselmotor_Bild1_01
Cylinder liner with machined micro dimples. (Photo: IFW)
IFW_Reibungsminderung_im_Schwerlast-Dieselmotor_Bild2_EN
Reduced friction thanks to micro dimples in cylinder liners. (Photo: IFW)
IFW_Reibungsminderung_im_Schwerlast-Dieselmotor_Bild3_EN
Micro structuring by turn-milling process. (Photo: IFW)
IFW_Reibungsminderung_im_Schwerlast-Dieselmotor_Bild4_EN
Crankshaft angle dependent friction tests on a fired engine. (Photo: IFW)
IFW_Reibungsminderung_im_Schwerlast-Dieselmotor_Bild5_EN
Microstructures are produced by rotary milling. (Photo: IFW)

Contact

Christopher Schmidt, M.Sc.

+49 (0)511 762 19372
schmidt_ch@ifw.uni-hannover.de
www.ifw.uni-hannover.de

This Page

drucken

recommend

  • tweet 

Similar posts

  • “As-built“ scan enables creation of digital twins
  • Randzoneneigenschaften prozesssicher definieren
  • Fräsen und Bohren: Ein Roboter lässt die Späne fliegen

This Page

drucken

recommend

  • tweet 

ISSN 2198-1922 | Legal Information | Privacy notice | Article Sitemap