34th International Vienna Motor Symposium

EVOLITE – Lightweight Pistons for Gasoline Engines with Optimized Frictional Loss

Authors

Dr.-Ing. S. Spangenberg,
Dipl. Wirt.-Ing. J. Adelmann,
Dr.-Ing. T. Hettich, A. Hammen, MAHLE GmbH, Stuttgart

Year

2013

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 764

Summary

This article describes the development of MAHLE piston technology with the goal of meeting the increasing requirements of advanced, highly efficient gasoline engines. The new EVOLITE® lightweight piston from MAHLE arose from the consistent ongoing development of its predecessor, the EVOTEC® 2, and is based on the EVOTEC® principle. This principle differs from the design principles of previous decades in that the piston geometry has inverted asymmetry on the thrust and antithrust side. A narrow thrust side is combined with a wide, elastic antithrust side for guiding the piston. The light, robust EVOTEC® 2 piston has variants with ring carriers or cooling galleries.

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