NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Experimental evaluation of a translating nozzle sidewall radial turbineStudies have shown that reduced specific fuel consumption of rotorcraft engines can be achieved with a variable capacity engine. A key component in such an engine in a high-work, high-temperature variable geometry gas generator turbine. An optimization study indicated that a radial turbine with a translating nozzle sidewall could produce high efficiency over a wide range of engine flows but substantiating data were not available. An experimental program with Teledyne CAE, Toledo, Ohio was undertaken to evaluate the moving sidewall concept. A variety of translating nozzle sidewall turbine configurations were evaluated. The effects of nozzle leakage and coolant flows were also investigated. Testing was done in warm air (121 C). The results of the contractual program were summarized.
Document ID
19870008268
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Roelke, Richard J.
(NASA Lewis Research Center Cleveland, OH, United States)
Rogo, Casimir
(Teledyne CAE Toledo, Ohio, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1987
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
E-3419
NASA-TM-88963
NAS 1.15:88963
Accession Number
87N17701
Funding Number(s)
PROJECT: RTOP 535-05-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available