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:
Mar. 02, 1993
Filed:
Jul. 15, 1991
Applicant:
Inventor:
Ranjan Das, Hobe Sound, FL (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
4151494 ; 415160 ; 415161 ; 415162 ; 4161 / ;
Abstract
A method and apparatus for adjusting the angle of variable angle inlet guide vanes provides a non-linear adjustment schedule for a selected vane row as compared to the adjustment schedule for the IGV vane row. The non-linear schedule is conveniently achieved by providing a modified adjustment linkage utilizing a bell crank. The non-linear schedule provides improved engine stall margin at low engine speeds.
Das, Ranjan. (1993). Variable vane non-linear schedule for a gas turbine engine (U.S. Patent No. 5190439). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5190439
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