Accession Number : AD0650632

Title :   FLUID CONTAMINATION IN TRAIN AND EVALUATION POWER DRIVES.

Descriptive Note : Final rept., Dec 61-Jun 65,

Corporate Author : FRANKLIN INST RESEARCH LABS PHILADELPHIA PA

Personal Author(s) : Hollinger,R. H. ; Stone,J. ; Donis,J. N. ; Haigh,T. I. ; Lare,G. F.

Report Date : SEP 1965

Pagination or Media Count : 59

Abstract : The report reviews the findings of Phases I and II and adds information obtained with continuing efforts on Phase I. The findings of Phase III are discussed and reviewed. The subject of Phase I was a sample collection and field survey to determine the type, amount, and source of contaminants in the hydraulic fluid of Naval Missile launcher systems and gun pointing systems. Phase II comprised a filtration study to determine the relative capacities and efficiencies of filters currently in use in Navy train and elevation hydraulic drives for missile launchers. Such data would be of use in recommending filter type and rating for systems. Phase III was a test program, the objective of which was to determine the effect of various servo valve second stage parameters on valve operation in contaminated conditions. The parameters to be investigated were spool-bushing clearances, bushing hardness, spool groove configuration, and spool finish. (Author)

Descriptors :   (*HYDRAULIC FLUIDS, CONTAMINATION), ELEVATING GEAR, TRAINING GEAR, DRIVES, HYDRAULIC EQUIPMENT, SERVOMECHANISMS, HYDRAULIC FLUID FILTERS, PERFORMANCE(ENGINEERING)

Subject Categories : Lubricants and Hydraulic Fluids
      Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE