Accession Number : AD0781005

Title :   Exploratory Investigation for Reducing Labyrinth Seal Leakage in High Pressure Ratio Gas Turbines.

Descriptive Note : Final rept. 1 Aug 72-31 Aug 73,

Corporate Author : GENERAL MOTORS CORP INDIANAPOLIS IND DETROIT DIESEL ALLISON DIV

Personal Author(s) : Stocker,H. L.

Report Date : SEP 1973

Pagination or Media Count : 140

Abstract : The attendant problem of labyrinth seal air leakage in current and advanced high pressure ratio gas turbines is directly related to the limitations of current gas turbine dynamic seal technology. A method of improving the efficiency of labyrinth seals which does not violate mechanical design constraints involves increasing the internal cavity turbulence of the seal. Therefore, an exploratory investigation was undertaken to conceive, design, fabricate, and test several unique labyrinth seal configurations. (Modified author abstract)

Descriptors :   *Gas turbines, *Rotary seals, Leakage(Fluid), Experimental design, Configurations, Flow visualization, Dynamic tests

Subject Categories : Adhesives, Seals and Binders
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE