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:
Jan. 17, 2017
Filed:
Sep. 11, 2012
Applicant:
Christopher J. Larson, Newfield, ME (US);
Inventor:
Christopher J. Larson, Newfield, ME (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 11/00 (2006.01); F02C 7/28 (2006.01); F16J 15/34 (2006.01); F16J 15/00 (2006.01);
U.S. Cl.
CPC ...
F01D 11/003 (2013.01); F01D 11/005 (2013.01); F02C 7/28 (2013.01); F16J 15/002 (2013.01); F16J 15/34 (2013.01); F16J 15/344 (2013.01); F16J 15/3436 (2013.01); F16J 15/3448 (2013.01); F16J 15/3452 (2013.01); F16J 15/3464 (2013.01); F16J 15/3472 (2013.01); F05D 2240/55 (2013.01); F05D 2240/58 (2013.01); F16J 15/346 (2013.01); F16J 15/3456 (2013.01); Y02T 50/671 (2013.01);
Abstract
A disclosed intershaft seal assembly for a gas turbine engine includes a support fixed to a static structure. A first seal housing is supported radially outboard of the support for holding a first seal. A second seal housing is supported radially inboard of the support and supports a second seal. A first biasing member is provided between the support and the first seal housing that biases the first seal housing in a first direction away from the support. A second biasing member between the support and the second seal housing biases the second seal housing in a second direction away from the support.