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. 21, 2010
Filed:
Oct. 27, 2006
Andreas Sadil, Newington, CT (US);
Timothy A. Swandon, Coventry, CT (US);
Roger O. Coffey, Glastonbury, CT (US);
Debora F. Kehret, Manchester, CT (US);
Andreas Sadil, Newington, CT (US);
Timothy A. Swandon, Coventry, CT (US);
Roger O. Coffey, Glastonbury, CT (US);
Debora F. Kehret, Manchester, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A balance pressure control is provided for flaps which pivot in a rear of a gas turbine engine nozzle to change the cross-sectional area of the nozzle. An actuator drives a sync ring to move the flaps through a linkage. A supply of pressurized air is also provided to the sync ring to assist the actuator in resisting forces from high pressure gases within the nozzle. When those forces are lower than normal the flow of air to the rear of the sync ring is reduced or blocked. A ring rotates with another ring to control both this air flow, and a supply of cooling air to an interior of the nozzle.