Open AccessFRICTIONAL POWER MINIMIZATION IN PARTIALLY TEXTURED PISTON RING ASSEMBLY
Author(s) -
A. Ashwin,
A.Srinivasa Rao Dr. C.Sashidhar
Publication year - 2013
Publication title -
international journal of mechanical and industrial engineering
Language(s) - English
Resource type - Journals
ISSN - 2231-6477
DOI - 10.47893/ijmie.2013.1142
Subject(s) - piston (optics) , piston ring , brake , automotive engineering , power (physics) , automotive industry , mechanical engineering , materials science , fuel efficiency , automotive engine , ring (chemistry) , engineering , physics , optics , chemistry , organic chemistry , wavefront , quantum mechanics , aerospace engineering
A significant share i.e. 60% of the total power loss in a modern automotive engine in form of heat, either from the engine surface or the exhaust pipe, of which the friction losses may vary from 18% to 20% and frictional losses are also responsible for about 25% of the fuel consumption. It is noted that almost 80% of the frictional losses are due to the frictional losses in the piston ring assembly (PRA). That leaves less than one quarter of the indicated power in terms of brake power. This paper analyses different methods developed by the automobile industries in order to reduce the friction power losses it may be in form of the development of better lubricants, design and partial laser surface texturing (LST) of the piston rings.