Measuring and testing – With fluid pressure – Leakage
Patent
1986-03-13
1987-12-29
Levy, Stewart J.
Measuring and testing
With fluid pressure
Leakage
277 2, G01M 320
Patent
active
047152133
ABSTRACT:
A method and apparatus for measuring the leakage flow rate through a labyrinth seal is disclosed. This is achieved by first injecting a tracer gas through a spray tube at an upstream region of the seal. The tracer gas mixes with the gas stream to form a mixed flow stream. The concentration of the tracer gas in the mixed flow stream is then measured, allowing the leakage flow rate to be calculated.
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General Electric Technical Memorandum-69-50, Title: Seal Leakage Measurement by Helium Sampling, Prepared by: P. A. Perkins-1/14/69.
Secondary Systems Design Presentation, Prepared by: F. G. Haaser-Feb. 20, 1985.
McGreehan William F.
Sherwood Laurence T.
Foote Douglas S.
General Electric Company
Lawrence Derek P.
Levy Stewart J.
Roskos Joseph W.
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