Influence of the Mean Friction Pressure on the Temperatures of the Combustion Engine

Abstract:

The development of a new combustion engines is connected with endeavor for escalation of the total efficiency. Escalation of the total efficiency can be: minimization of the mechanical losses in the combustion engines or minimization of the unsuitable equipment capacity of accessories. Now research and development programs of a manufacturer of the combustion engines search effectual equipment and method for this escalation of the total efficiency. The escalation of the total efficiency is important for a minimization fuel consumption and consequently for lower emissions. The paper deals with the problem of frictional losses in internal combustion engines. It is described by measuring station built and further are shown measured values for a small car. Furthermore, in the paper presented to the selected function to approximate the measured values of friction losses, depending on the temperatures of the work fluids for a concrete RPM mode.

• Periodical: Applied Mechanics and Materials (Volume 390)
• Pages: 350-354
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.390.350
• Online since: August 2013
• Authors: Stanislav Beroun, Pavel Brabec, Ondřej Dráb, Robert Voženílek
• Keywords: Friction, Friction Losses, Ice, Mean Friction Pressure, Measuring Station, Mechanical Losses

References

[1] R. Basshuysen, F. Schäfer, in: Internal Combustion Engine Handbook, chapter 9, Vieweg Verlag (2002).

[2] P. Solfrank, in: Mehr Effizienz durch Reibungsreduzierung beim Verbrennungsmotor und im Antriebstrang, Trends in der Motortechnik, Passau (2012).

[3] M. Schwaderlapp, F. Koch1, J. Dohmen, in: Friction Reduction - the Engine's Mechanical Contribution to Saving Fuel, FISITA World Automotive Congress (F2000A165), Seoul (2000).

[4] F. Koch, F. Haubner, M. Schwaderlapp, in: Thermomanagement beim DI Ottomotor-Wege zur Verkürzung des Warmlaufs, 22. Internationales Wiener Motorensymposium, Vienna (2000).

[5] K. L. Hoag, in: Vehicular Engine Design Powertrain, chapter 3. 3, SpringerWienNewYork (2006).

[6] L. Bartoníček, in: Konstrukce pístových spalovacích motorů, Technical University of Liberec (1992).

[7] Federal-Mogul reveals advanced piston ring coating. [online]. [2013-04-20]. Information on: http: /www. enginetechnologyinternational. com/news. php?NewsID=32368.

[8] Nano-technology based ultra-low friction technology [online]. [2013-04-20]. Information on: http: /www. nissan-global. com/EN/TECHNOLOGY/OVERVIEW/dlc. html.