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. 17, 2017
Filed:
May. 20, 2014
United Technologies Corporation, Hartford, CT (US);
Michael C Firnhaber, Tolland, CT (US);
United Technologies Corporation, Farmington, CT (US);
Abstract
Airfoils () are molded of material (), such as silicon rubber, which is fluent during molding, becoming solid and compliant at temperatures of use, with rigidly fixed vanes () and rotatable vanes (), as inserts which are co-molded within the airfoil. The inserts are pre-prepared of either stiff or semi-stiff material to suit the intended needs of the airfoil. Then, with inserts in place within a mold, the airfoil is molded of compliant material. At least one of the inserts () is rotatable so as to force at least some portion of the compliant airfoil to alter camber, the compliant material between the inserts smoothing out the surface of the airfoil. The airfoils thus molded are then inserted between the inner hub () and the outer ring () of the rotary machine in which a fan or compressor is being constructed. Rods of the movable vanes extend to a unison ring connected () to rotate the vanes.