This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
AEconoguide - The Low Friction Piston
Annotation ability available
Sector:
Language:
English
Abstract
The AEconoguide specification provides a piston with a skirt bearing area which, depending mainly on skirt length, is from 45% to 70% less than normal without detriment to lubrication or guidance. Such pistons can only be produced by diamond turning on special machines.
The lower friction associated with AEconoguide has either increased power or reduced fuel consumption in 5 gasolene and 4 diesel engine tests to date. Power was improved by (1.8 ± .4)% and fuel economy by (3.4 ±.6)% at part load in those engines, expressed as (mean ± r.m.s. error of mean)%.
Citation
Rhodes, M. and Parker, D., "AEconoguide - The Low Friction Piston," SAE Technical Paper 840181, 1984, https://doi.org/10.4271/840181.Also In
References
- PARKER, D.A. ADAMS, D.R. “Friction Losses in the Reciprocating Internal Combustion Engine” I. Mech, E. Conference “Tribology - Key to the Efficient Engine”. Paper C5/82
- HADDAD, S.D. “The Origins of Noise and Vibration in Diesel Engines with Emphasis on Piston Slap” Ph.D. Thesis University of Southampton England 1974
- CAMERON, A. “Principles of Lubrication” Longmans 1962 116
- ETTLES, C.M. McC. Private Communication 1982
- VAN OS, N. RHODES, R.B. COVEY, D.F. “A Study of Lubricating Oil Performance in a Journal Bearing Rig, II” SAE Paper 810801
- RHODES, M.L.P. TRAVAILLE, J. “The AEconoguide Low Friction Piston Skirt Design” Autotechnologies Monte Carlo '83 - An International Forum on New Automotive Technologies sponsored by FISITA. Monte Carlo 1983
- PARKER, D.A. STAFFORD, J.V. KENDRICK, M. GRAHAM, N.A. “Experimental Measurements of the Quantities Necessary to Predict Piston Ring-Cylinder Bore Oil Film Thickness, and of the Oil Film Thickness Itself, in Two Particular Engines” I. Mech. E. Conference Piston Ring Scuffing 1975
- LAWS, A.M. PARKER, D.A. TURNER, B. “Piston Movement in the Diesel Engine” CIMAC Paper No. 33 1973
- PARKER D.A. ADAMS, D.R. GRAHAM, N.A. “Some Contributions of Instrumentation to the Understanding and Prediction of Piston and Ring Behaviour” I.S.A.T.A. Graz Austria September 1979