Published February 14, 1973 | Version v1
Patent Metadata-only

A method and device for measuring tightness leaks in rotative engines

Creators

Description

The invention relates to the measurement of tightness leak as carried out during rotative machine power and wear control. According to the method, a radioactive tracer is injected into a working chamber of the engine between the end of the intake stroke and the compression stroke maximum, then the radioactive activity of each of the working chambers is measured in the exhaust pipe. The invention applies to rotative piston machines such as engines compressors and pumps, as well as to aircraft reaction engines, gas turbines and fast chemical reactors

Abstract (French)

L'invention se rapporte a la mesure des fuites d'etancheite effectuees au cours de controles de puissance et d'usure de machines rotatives. Suivant le procede de mesure, on injecte un traceur radioactif dans une chambre de travail du moteur entre la fin du temps d'admission et le maximum du temps de compression, on mesure l'activite radioactive de chacune des chambres de travail dans la tuyauterie d'echappement. L'invention s'applique aux machine a piston rotatif telles que moteurs, compresseurs, pompes ainsi qu'aux reacteurs d'avions, aux turbines a gaz et aux reacteurs chimiques rapides

Additional details

Additional titles

Original title (French)
Procede et dispositif de mesure des fuites d'etancheite dans les moteurs rotatifs
Augmented title (English)
technique of tracers

Publishing Information

Imprint Pagination
15 p.
IPC:
Int. Cl. G01m3/20; F02b77/08; G01m15/00.
IPC
Int. Cl. G01m3/20; F02b77/08; G01m15/00.
Patent number
FR patent document 2217684/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
6218388
Subject category
S07: ISOTOPES AND RADIATION SOURCES;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
COMPRESSORS; GAS TURBINES; LEAK DETECTORS; LEAK TESTING; MOTORS; ROTORS; TRACER TECHNIQUES
Descriptors DEC
ISOTOPE APPLICATIONS; TESTING; TURBINES

Optional Information

Notes
Available from Institut National de la Propriete Industrielle, Paris (France).