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:
Apr. 11, 2000
Filed:
Sep. 10, 1997
Applicant:
Inventors:
Marc Samit, West Hartford, CT (US);
Douglas A Welch, Portland, CT (US);
Paul W Duesler, Manchester, CT (US);
Patrick D Markham, Glastonbury, CT (US);
Allan R Penda, Amston, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D / ; F01D / ;
U.S. Cl.
CPC ...
416233 ; 416224 ; 416232 ; 4162 / ; 4162 / ; 4162 / ; 4162 / ; 4162 / ; 4162 / ;
Abstract
A hollow airfoil (34) for a gas turbine engine having a leading edge (50), a trailing edge (52), a pressure side (54), and a suction side (56) includes a solid region of enhanced chordal thickness (78), and buttresses (82, 84, 86, 88). The present invention airfoil is preferentially strengthened so as to reduce the risk of airfoil fracture due to impact of airfoil with successive airfoils during an airfoil loss condition.