Ethos Fuel Reformulator

LUBRICITY

Supporting Documentation:

A Relevant Study on Low Sulfur Diesel Fuel -> Engine Wear -> and Ester Lubricants

By Professor P.B.Hertz, Mechanical Engineering Dept., University of Saskatchewan, Saskatoon SK Canada

Extending Diesel Engine Life and Fuel Economy with Canola Based Fuel Additives

The Real Cost of Lubrication

Dr. Roger Melley Peter Wissner, P.Eng., Maryn Research Ltd. 6173 - 6th Street S.E. Calgary, AB T2H 1L9

The "real cost of lubrication" is not the purchase price of the oil or grease, but rather the costs associated with not using the correct lubricant.

Impact of Novel Cold Rolling Oil Technologies and Materials on Strip Cleanliness

Nico L. J. M. Broekhof, Manager Global Research, Quaker Chemical Europe BV, Uithoorn, The Netherlands, and Carlin E. Mueller, Product Manager Steel Cold Rolling, Quaker Chemical Corp., Conshohocken, Pa.

In boundary lubrication, where film thickness is of the same order of magnitude as the combined surface roughness, the interaction of lubricant components with the metal surface is important. Three mechanisms can play a role: physical adsorption, chemical adsorption (e.g., absorption of fatty acids leading to an iron soap) and chemical reactions.

Mixed Lubrication Theory

Introduction to EHL and Mixed Lubrication Theories

The application of the Reynolds equation to components in conformal contact, such as the journal bearing, has successfully solved many design problems. It is natural to apply the Reynolds equation to elements in counterformal contact, such as gears, cam and followers, and rolling-element bearings, and look for the same success. Martin (1916) studied gear lubrication by means of rigid cylinders, which we know were simulations of tooth bodies at contact based on the radii of curvature at the contact position, as shown in Figure 7-1. Guess what he found? The predicted film thickness was much less than the surface roughness of the best-machined gear surfaces, sometimes was even negative. If it were true, the gears tooth under such film thickness should worn out rapidly. However, in reality, such gears worked fine. This suggested that the real film thickness is thicker (or much thicker) than what was predicted by the rigid-cylinder lubrication model.