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:
Dec. 13, 2016
Filed:
Jan. 25, 2013
Byron Andrew Pritchard, Jr., Loveland, OH (US);
Paul Alfred Pezzi, Cincinnati, OH (US);
George Gould Cunningham, Iii, Lawrenceburg, IN (US);
Thomas Ory Moniz, Loveland, OH (US);
Steven Alan Ross, Cincinnati, OH (US);
Raymond Gust Holm, Lebanon, OH (US);
Byron Andrew Pritchard, Jr., Loveland, OH (US);
Paul Alfred Pezzi, Cincinnati, OH (US);
George Gould Cunningham, III, Lawrenceburg, IN (US);
Thomas Ory Moniz, Loveland, OH (US);
Steven Alan Ross, Cincinnati, OH (US);
Raymond Gust Holm, Lebanon, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A gas turbine engine variable bleed apparatus includes a variable bleed valve door disposed in a bleed inlet in a transition duct, rotatable about two or more separate pivot points, operable to open and close an aft bleed slot extending outwardly from transition duct, and operable to open and close a forward bleed slot extending inwardly into transition duct. Door is operable to transition between a first position with aft bleed slot open and forward bleed slot closed to a second position with aft bleed slot closed and forward bleed slot open without fully closing door. Door is rotatable about an axis translatable between the two or more separate pivot points. Transition duct having a transition duct conical angle at least about 10 degrees greater than a booster conical angle of a booster outer shroud upstream of transition duct.