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:
Aug. 02, 2016
Filed:
Apr. 09, 2008
Applicants:
Mark E. Addis, Kennebunk, ME (US);
George H. Reynolds, Sanford, ME (US);
Inventors:
Mark E. Addis, Kennebunk, ME (US);
George H. Reynolds, Sanford, ME (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 9/04 (2006.01); B23P 6/00 (2006.01); F01D 17/16 (2006.01); F04D 29/56 (2006.01); F04D 29/64 (2006.01);
U.S. Cl.
CPC ...
F01D 9/042 (2013.01); B23P 6/005 (2013.01); F01D 17/162 (2013.01); F04D 29/563 (2013.01); F04D 29/644 (2013.01); F05D 2230/80 (2013.01); F05D 2240/14 (2013.01); F05D 2260/74 (2013.01); Y10T 29/49318 (2015.01);
Abstract
A vane shroud for a gas turbine engine has a cylindrical shaped body and a hole arranged at a circumference of the body. The hole is for receiving a trunnion from a variable vane. A counterbore is arranged concentrically around the hole on a radially inward facing surface of the body, and receives a trunnion hub from the variable vane. A shrink-fit insert is seated into the counterbore such that the trunnion hub is provided with a contact surface, and the shrink-fit insert is secured to the shroud through an interference fit.