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:
Aug. 06, 2019
Filed:
Aug. 26, 2015
United Technologies Corporation, Hartford, CT (US);
Edward J. Gallagher, West Hartford, CT (US);
Byron R. Monzon, Cromwell, CT (US);
Ling Liu, Glastonbury, CT (US);
Linda S. Li, Middlefield, CT (US);
Darryl Whitlow, Middletown, CT (US);
Barry M. Ford, Middletown, CT (US);
United Technologies Corporation, Farmington, CT (US);
Abstract
An airfoil of a turbine engine includes pressure and suction sides that extend in a radial direction from a 0% span position at an inner flow path location to a 100% span position at an airfoil tip. The airfoil has a relationship between a tangential stacking offset and a span position that is at least a third order polynomial curve that includes at least one positive and negative slope. The positive slope leans toward the suction side and the negative slope leans toward the pressure side. An initial slope starts at the 0% span position is either zero or positive. The first critical point is less than 15% span.