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:
May. 08, 2012
Filed:
May. 04, 2009
Applicants:
Loc Q. Duong, San Diego, CA (US);
Shiv C. Gupta, San Diego, CA (US);
Xiaolan HU, San Diego, CA (US);
Inventors:
Loc Q. Duong, San Diego, CA (US);
Shiv C. Gupta, San Diego, CA (US);
Xiaolan Hu, San Diego, CA (US);
Assignee:
Hamilton Sunstrand Corporation, Rockford, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03D 11/00 (2006.01); F01D 29/00 (2006.01); B63H 1/16 (2006.01); F03B 3/12 (2006.01); B64C 27/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A gas turbine engine includes a radial compressor with first and second blades. The first and second blades have tuned leading edges that prevent natural frequencies from exciting at speeds within an expected operating speed range.