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:
Jun. 04, 2019
Filed:
Mar. 10, 2016
Rolls-royce Corporation, Indianapolis, IN (US);
Patrick E. Bailey, Zionsville, IN (US);
Rolls-Royce Corporation, Indianapolis, IN (US);
Abstract
An improved structure and method of manufacturing a structure such as a guide vane for a gas turbine engine includes an improved guide vane having a stress transition section called a fillet that is positioned between an airfoil and a hub. The fillet includes a constant radius section and a compound radius portion that is collectively configured to handle the stress loads of the guide vane as well as to provide aerodynamic efficiencies. An improved method of manufacturing an airfoil is provided that employs a single pass manufacturing process whereby a single tool is used to generate a resulting fillet having a constant radius and compound radius portion.