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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10012150 B1

PDFFull Text
Date of Patent:
Jul. 03, 2018

Filed:

Aug. 10, 2016

Efficient, low pressure ratio propulsor for gas turbine engines

Applicant:

United Technologies Corporation, Farmington, CT (US);

Inventors:

Edward J. Gallagher, West Hartford, CT (US);

Byron R. Monzon, Cromwell, CT (US);

Shari L. Bugaj, Haddam, CT (US);

Assignee:

United Technologies Corporation, Farmington, CT (US);

Attorney:

Carlson, Gaskey & Olds, P.C.

Primary Examiner:

Carlos A Rivera

Int. Cl.
CPC ...
F02C 7/36 (2006.01); F02K 1/06 (2006.01); F02K 3/06 (2006.01); F01D 5/28 (2006.01); F01D 5/14 (2006.01); F01D 15/12 (2006.01); F04D 29/02 (2006.01); F04D 29/053 (2006.01); F04D 29/32 (2006.01); F04D 29/38 (2006.01); F04D 29/52 (2006.01); F04D 29/56 (2006.01);
U.S. Cl.
CPC ...
F02C 7/36 (2013.01); F01D 5/147 (2013.01); F01D 5/282 (2013.01); F01D 15/12 (2013.01); F02K 1/06 (2013.01); F02K 3/06 (2013.01); F04D 29/023 (2013.01); F04D 29/053 (2013.01); F04D 29/325 (2013.01); F04D 29/388 (2013.01); F04D 29/526 (2013.01); F04D 29/563 (2013.01); F05D 2220/32 (2013.01); F05D 2220/327 (2013.01); F05D 2220/36 (2013.01); F05D 2260/4031 (2013.01); F05D 2300/603 (2013.01); Y02T 50/672 (2013.01);
Abstract

A gas turbine engine includes a gear assembly and a bypass flow passage that includes an inlet and an outlet that define a design pressure ratio between 1.3 and 1.55. A fan is arranged at the inlet. A first turbine is coupled with a first shaft such that rotation of the first turbine will drive the fan, through the first shaft and the gear assembly, at a lower speed than the first shaft. The fan includes a row of fan blades. The row includes 12-16 (N) fan blades, a solidity value (R) that is from 1.0 to 1.3, and a ratio of N/R that is from 10.0 to 16.

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