Advantages of nylon spunbond fabrics in glycol contaminated engine oil

J.T. Walker*, E.S. Carter, A.E. Ortega, Cerex Advanced Fabrics Inc., USA

Ethylene glycol mixed with water has proven to be an effective heat transfer coolant in combustion engines. Unfortunately, coolant can migrate through worn or damaged seals, gaskets and cracked engine blocks and contaminate the lubrication oil. Engine manufacturers and fleet operators are demanding longer service intervals which increases the opportunity for coolant to contaminate the lubrication oil. One industry study suggests that at least 1 of every 6 diesel engines have measurable levels of coolant contamination present in the lube oil. At typical engine operating temperatures, even small concentrations of engine coolant in the oil can rapidly attack certain synthetic polymer components in the lube oil system including the filter media itself.

In past studies, polyester filaments in spunbond or wet laid filter media materials have proven to quickly lose a majority of their original tensile strength when exposed to even small concentrations of coolant contamination at typical engine operating temperatures. This degradation can result in premature burst failure of the filter element and contribute to expensive engine damage up to and including catastrophic engine failure.

This presentation will review a third party laboratory study of both nylon and polyester spunbond fabrics that are commonly used in lube oil filters ...

Session: L6 - New and Improved Filter Media
Day: 11 October 2016
Time: 16:45 - 18:00 h