Accession Number : ADD013734

Title :   Combustor Fiberscope.

Descriptive Note : Patent, Filed 6 Sep 85, patented 8 Dec 87,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Morey, William W ; Snitzer, Elias

Report Date : 08 Dec 1987

Pagination or Media Count : 5

Abstract : This invention relates generally to the analysis of heat distribution and flame characteristics within the combustor of an engine, and particularly to the means for acquiring data on such characteristics. More particularly, the invention relates to the retrieval of data by viewing the invention relates to the retrieval of data by viewing the interior of an engine combustor while in operation. In even greater particularity, the invention relates to fiber optical means for remotely viewing the interior of an operating combustor. The present invention employs a rigid, fiber optic image conduit to transfer the image from the interior to the exterior of a combustor. A viewing lens forms the image of the combustor interior on the end of the conduit, and the image is transmitted to a long flexible coherent fiber optic bundle for transmission to a remote location for viewing or recording with optical instruments. Objects of this invention are: to provide a more compact and rugged probe through the use of the fused fiber bundle, inasmuch as the fused fiber bundle is smaller than a flexible bundle and doe not require lubrication to reduce fiber breakage. (The small size is important to allow convenient access and not significantly perturb the combustor environment); to provide a combustor fiberscope for use in higher temperature, inasmuch as the temperature limitation of the fused bundle extends the temperature range to the softening point of the glass therein; and to provide a less costly combustor fiberscope by utilizing a replaceable and relatively inexpensive image conduit.

Descriptors :   *COMBUSTORS, *FLAMES, *HEAT, *OPTICAL INSTRUMENTS, *PATENTS, BUNDLES, CONDUITS, DISTRIBUTION, ENGINE COMPONENTS, ENVIRONMENTS, FIBER OPTICS, IMAGES, INFORMATION RETRIEVAL, LIMITATIONS, LUBRICATION, PROBES, RANGE(EXTREMES), RECORDING SYSTEMS, REMOTE AREAS, RUGGEDIZED EQUIPMENT, SOFTENING POINTS, TEMPERATURE, VIEWERS

Subject Categories : Combustion and Ignition
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE