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

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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

Author(s):
Stocker, H. L.
Author Organization(s):
GENERAL MOTORS CORP INDIANAPOLIS IND DETROIT DIESEL ALLISON DIV
Descriptive Note:
Final rept. 1 Aug 72-31 Aug 73,
Pagination:
0140

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
DDA-EDR-7968
Contract/Grant Number(s):
N00140-73-C-0005
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*Gas turbines, *Rotary seals, Leakage(Fluid), Experimental design, Configurations, Flow visualization, Dynamic tests
Field(s)/Group(s):
Adhesives, Seals and Binders, Jet and Gas Turbine Engines
Keyword(s):
*Labyrinth seals
Report Date:
1973 Sep 01