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:
Oct. 27, 2020
Filed:
Jan. 12, 2018
United Technologies Corporation, Farmington, CT (US);
Kurt R. Heinemann, East Hampton, CT (US);
Sumin Tao, Mukilteo, WA (US);
Christopher B. Jelks, Manchester, CT (US);
Xuedong Zhou, Glastonbury, CT (US);
Mark David Ring, Cape Neddick, ME (US);
Konstantinos Panagiotis Giannakopoulos, Middletown, CT (US);
Kate Hudon, Superior, CO (US);
John Joseph Papalia, Middletown, CT (US);
Raytheon Technologies Corporation, Farmington, CT (US);
Abstract
A turbomachine airfoil element includes an airfoil that has pressure and suction sides spaced apart from one another in a thickness direction and joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 2.99-3.29 inch (75.9-83.6 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span and is in a range of 1.44-1.74 inch (36.6-44.2 mm). The airfoil element includes at least two of a first mode with a frequency of 430±10% Hz, a second mode with a frequency of 1459±10% Hz, a third mode with a frequency of 2036±10% Hz, a fourth mode with a frequency of 3615±10% Hz, a fifth mode with a frequency of 4722±10% Hz and a sixth mode with a frequency of 5591±10% Hz.