Accession Number : AD0429211


Title :   DYNAMIC SHAFT SEALS IN SPACE.


Descriptive Note : Quarterly rept. no. 6, 15 Aug-15 Oct 63.


Corporate Author : GENERAL ELECTRIC CO CINCINNATI OH


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/429211.pdf


Report Date : 15 OCT 1963


Pagination or Media Count : 81


Abstract : A theoretical investigation of rotating fluid ring seals was completed. The analysis predicts the performance of plain rotating housing and rotating disk seals. The experimental investigation of the interface instability associated with rotating fluid ring seals continued utilizing the water seal test rig. The testing provided additional data concerning the extreme operating range of the dynamic zero leakage (DZL) seals which were designed to alleviate the interface instability problem. So far, two seal concepts have been developed which suppressed liquid leakage up to speeds of 20, 000 RPM. Water seal testing was also performed on the rotating disksqueeze seal configuration to obtain additional test data for correlating the squeeze seal results with theoretical analysis. The open loop of the water seal rig facility was converted to a close loop so that other fluids such as oil can be evaluated as sealing fluids. Seal testing for the SNAP 8 project using Dow's ET378 oil was initiated. (Author)


Descriptors :   *MAINTENANCE , SPECIFICATIONS , HIGH TEMPERATURE , TEST METHODS , TURBULENCE , TEST EQUIPMENT , PRESSURE , RINGS , FLUID DYNAMICS , ROTATION , LAMINAR FLOW , TEST FACILITIES , LUBRICANTS , SEALING COMPOUNDS , POTASSIUM , GASKETS , COUETTE FLOW , LIQUID METALS.


Subject Categories : COMBUSTION AND IGNITION


Distribution Statement : APPROVED FOR PUBLIC RELEASE