Accession Number : AD0814826

Title :   CONTAMINATION TOLERANCE OF AIRCRAFT HYDRAULIC PUMPS.

Descriptive Note : Final technical rept. Nov 64-Nov 66,

Corporate Author : FRANKLIN INST RESEARCH LABS PHILADELPHIA PA

Personal Author(s) : Hollinger, Richard H. ; Donis, John N. ; Lare, George F.

Report Date : MAR 1967

Pagination or Media Count : 66

Abstract : The first objective of this program was to obtain data on the effect of the hydraulic fluid contaminants on the operation of a typical aircraft hydraulic pump from the point of view of contaminant concentration by weight, by particle size, and by type of contaminant. A second objective was to evaluate the methods used to determine contaminant concentration and a method suited to field use was to be recommended. The report describes the tests performed and gives maximum allowable values for contaminant weight, size, and hardness. Two alternate field contamination test methods are recommended and the weakest point for pump contamination tolerance is discussed. (Author)

Descriptors :   (*HYDRAULIC PRESSURE PUMPS, CONTAMINATION), AIRCRAFT EQUIPMENT, HYDRAULIC FLUIDS, TOLERANCES(MECHANICS), WEIGHT, PARTICLE SIZE, CONCENTRATION(CHEMISTRY), HARDNESS, INSTRUMENTATION, ENVIRONMENTAL TESTS, SILT, COUNTING METHODS, GRAVIMETRIC ANALYSIS, HYDRAULIC EQUIPMENT, FAILURE, FAILURE(MECHANICS), LEAKAGE(FLUID), MONITORS.

Subject Categories : Aircraft
      Organic Chemistry
      Pumps, Filters, Pipes, Tubing, Fittings & Vlvs

Distribution Statement : APPROVED FOR PUBLIC RELEASE