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:
Oct. 27, 2015
Filed:
May. 08, 2012
Applicant:
Eric J. Ward, West Palm Beach, FL (US);
Inventor:
Eric J. Ward, West Palm Beach, FL (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 11/02 (2006.01); F04D 29/10 (2006.01); F04D 29/16 (2006.01); F04D 29/32 (2006.01); F01D 5/06 (2006.01); F01D 11/00 (2006.01); F04D 19/02 (2006.01);
U.S. Cl.
CPC ...
F04D 29/164 (2013.01); F01D 5/06 (2013.01); F01D 11/001 (2013.01); F01D 11/02 (2013.01); F04D 19/02 (2013.01); F04D 29/102 (2013.01); F04D 29/321 (2013.01);
Abstract
A compressor section for use in a gas turbine engine has a plurality of compressor stages. Each compressor stage is provided with a rotor hub, and each rotor hub mounts a plurality of compressor blades. A rotor drum extends between adjacent rotor hubs. A plurality of stator stages have an outer ring and a radially inner ring. A plurality of vanes extend between the outer and inner rings. An inner surface of the inner ring is spaced by a gap from an outer surface of the rotor drum. The rotor drum is provided with a plurality of blades having a general airfoil shape to resist leakage across the gap.