Efficient, low pressure ratio propulsor for gas turbine engines

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10605202
APP PUB NO 20180230943A1
SERIAL NO

15936552

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A gas turbine engine includes a bypass flow passage and a core flow passage. The bypass flow passage defines a bypass ratio in a range of approximately 8.5 to 13.5. A fan is located upstream of the bypass flow passage. The bypass flow passage includes an inlet and an outlet that define a design fan pressure ratio of approximately 1.3 to 1.55. A first, inner shaft and a second, outer shaft are concentric. A first turbine is coupled with the first shaft, and the first shaft is coupled with the fan. The fan includes a hub and a row of fan blades that extend from the hub. The row includes a number of the fan blades, the number (N) being 18, a solidity value (R) at tips of the fan blades that is from 1.0 to 1.1, and a ratio of N/R that is from 16.4 to 18.0.

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First Claim

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Patent Owner(s)

  • UNITED TECHNOLOGIES CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gallagher, Edward J West Hartford, US 73 501
Monzon, Byron R Cromwell, US 37 270

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