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Efficient, Low Pressure Ratio Propulsor for Gas Turbine EnginesA gas turbine engine includes a bypass flow passage that has an inlet and defines a bypass ratio in a range of approximately 8.5 to 13.5. A fan is arranged within the bypass flow passage. A first turbine is a 5-stage turbine and is coupled with a first shaft, which is coupled with the fan. A first compressor is coupled with the first shaft and is a 3-stage compressor. A second turbine is coupled with a second shaft and is a 2-stage turbine. The fan includes a row of fan blades that extend from a hub. The row includes a number (N) of the fan blades, a solidity value (R) at tips of the fab blades, and a ratio of N/R that is from 14 to 16.
Document ID
20180002537
Acquisition Source
Glenn Research Center
Document Type
Other - Patent
Authors
Gallagher, Edward J.
Monzon, Byron R.
Date Acquired
April 24, 2018
Publication Date
March 27, 2018
Subject Category
Aircraft Propulsion And Power
Funding Number(s)
CONTRACT_GRANT: NAS3-01138
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-9,926,885
Patent Application
US-Patent-Appl-SN-15/709,540
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