EFFECT OF VARIOUS COMPOUNDS IN USE WITH AIRPLANE ENGINES UPON FOAMING OF AIRCRAFT LUBRICATING OIL

摘要

Aircraft lubricating oil is contaminated with various materials used in connection with airplane engines or contained in the fuel with which the oil is commonly diluted. Over 60 such materials have each been, tested to determine their influence upon the foaming of an aircraft lubricating oil. All but 13 of the compounds have only a small or negligible effect. Some of the 13 compounds are very strong foaming agents and their use might well be discontinued.