Browse Publications Technical Papers 2010-32-0124

Impact of Oil Aging on Wear of Piston Ring and Cylinder Liner System 2010-32-0124

The piston ring and cylinder liner tribosystem is very sensitive. It is a heavily loaded system with high temperature and force exposure. High demands are made on the components in this area. These facts concern not only system components, but also the engine oil which can reach up to 300°C at the inner cylinder walls. High temperatures and force cause oil aging.
As a part of the combustion chamber, the piston ring-cylinder liner tribosystem is in close contact with combustion constituents. If alternative fuels like ethanol are used, the influences to this tribosystem have to be investigated. In particular, the impacts of oil aging have to be considered to avoid higher wear and damage to the engine, to assure low fuel consumption, and to extend oil change intervals. Research work on abrasion of the ring-cylinder system was aimed to gain detailed information about the effects on this tribosystem. This was realized by the use of different engine oils and the experimental consideration of the impacts of ethanol on the oil.
For wear measurement, a novel measuring method is used. This measurement device is based on online and continuous detection of radioactive isotopes as wear tracers. The measurement device has been integrated to a conventional passenger car with an SI engine. The research was done on a chassis dynamometer test bench.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:

Spectroscopic Investigation of Initial Combustion Stages in a SI Engine Fuelled with Ethanol and Gasoline


View Details


Computations and Experiments of Single-Point Autoignition Gasoline Engine with Colliding Pulsed Supermulti-Jets, Single Piston and Rotary Valve


View Details


Development of the XMv3 High Efficiency Cycloidal Engine


View Details