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. 24, 1991
Filed:
Dec. 28, 1988
Applicant:
Inventors:
Derek P Harris, San Diego, CA (US);
Stacey H Light, San Diego, CA (US);
Assignee:
Sundstrand Corporation, Rockford, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C / ; F02C / ;
U.S. Cl.
CPC ...
60 3937 ; 60 3932 ;
Abstract
The clearance between a seal assembly 46 and a turbine wheel 14 in a turbine engine of the type having a radial outflow compressor 24 and a radial inflow turbine wheel 14 may be minimized by utilizing a diaphragm assembly 76 as part of the seal assembly 46 and which is formed of multiple pieces in the form of concentric rings 78, 80. In addition, the thermal stress in the rings 78 and 80 will be considerably less than in a single ring as used in existing designs. This greatly extends the useful life of the seal plate assembly before the onset of cracking and other kinds of mechanical failure.