Dynamic Foam and Aeration Test Apparatus.
Technical rept. Dec 68-Apr 71,
MIDWEST RESEARCH INST KANSAS CITY MO
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The report describes a technique for the experimental determination of foaming and aeration characteristics of aircraft engine lubricants. A dynamic method is presented which has the following capabilities oil temperature to 350F, oil pressure to 200 psig, oil flow rate to 2 gpm, air flow rate to 2,000 mlmin and system pressure from ground level to 3.5 in. Hg simulated 50,000 ft altitude. Repeatability of the method is plus or minus 25 ml of foam for low-foaming oils, plus or minus 35 ml for medium-foaming oils, and plus or minus 50 ml for high-foaming oils. Results of repeatability tests are shown graphically and data are tabulated for 111 tests on 37 oils. Author
- Lubricants and Hydraulic Fluids