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.:
Date of Patent:
May. 05, 2020
Filed:
Aug. 08, 2016
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
Larry Foster, South Glastonbury, CT (US);
Myron L. Klein, Higganum, CT (US);
Assignee:
United Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/32 (2006.01); F01D 5/28 (2006.01); F04D 29/66 (2006.01); F01D 5/10 (2006.01); F01D 5/16 (2006.01); F01D 25/04 (2006.01); F02C 3/04 (2006.01); F02K 3/06 (2006.01); F04D 29/02 (2006.01); F04D 29/38 (2006.01);
U.S. Cl.
CPC ...
F04D 29/327 (2013.01); F01D 5/10 (2013.01); F01D 5/16 (2013.01); F01D 5/282 (2013.01); F01D 25/04 (2013.01); F02C 3/04 (2013.01); F02K 3/06 (2013.01); F04D 29/023 (2013.01); F04D 29/388 (2013.01); F04D 29/666 (2013.01); F05D 2220/36 (2013.01); F05D 2230/60 (2013.01); F05D 2240/35 (2013.01); F05D 2260/961 (2013.01); F05D 2300/603 (2013.01); F05D 2300/6034 (2013.01); Y02T 50/673 (2013.01);
Abstract
A gas turbine engine includes a fan mounting a first group of blades and a second group of blades. The first group of blades and the second group of blades share a profile shape. The first group of blades have a first laminate composition, and the second group of blades have a second laminate composition, distinct from the first laminate composition. A frequency of a vibratory mode of the first group of blades is offset from a frequency of a vibratory mode of the second group of blades.