Recent Patents on Engineering

Jianjun Yu  
The School of Information Science and Engineering Fudan University
220 Hantan Rd
Shanghai, 200433


Advances in Piston Rings Modelling and Design

Author(s): Adolfo Senatore and Dragan Aleksendric

Affiliation: Department of Industrial Engineering, University of Salerno,via Ponte don Melillo 1, 84084 Fisciano (SA), Italy.

Keywords: Piston ring, engine friction, laser texturing, nano-structured additives.


The lubrication of the piston ring has been an important research matter for many years because it is generally accepted that the interaction at the ring-cylinder wall interface provides considerable effects on friction, wear, oil consumption and power loss in internal combustion engines. This paper after a historical overview presents in the first section the main physical phenomena considered by the literature for the design and the numerical simulation of frictional behaviour of piston rings. In the second section the first patents appeared since 1920s are briefly discussed before the more recent ones which deal with novel materials, innovative manufacturing methods, optimised shape and novel nano-lubricants.

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Article Details

Page: [51 - 67]
Pages: 17
DOI: 10.2174/1872212111307010005