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:
Aug. 14, 2018
Filed:
Dec. 16, 2014
General Electric Company, Schenectady, NY (US);
Davide Giacché, Munich, DE;
John David Stampfli, Greer, SC (US);
Ramakrishna Venkata Mallina, Clifton Park, NY (US);
Vittorio Michelassi, Munich, DE;
Giridhar Jothiprasad, Clifton Park, NY (US);
Ajay Keshava Rao, Bangalore, IN;
Rudolf Konrad Selmeier, Fahrenzhausen, DE;
Sungho Yoon, Munich, DE;
Ivan Malcevic, Schenectady, NY (US);
GENERAL ELECTRIC COMPANY, Schenectady, NY (US);
Abstract
A compressor for a gas turbine engine including one or more endwall treatments for controlling leakage flow and circumferential flow non-uniformities in the compressor. The compressor includes a casing, a hub, a flow path formed between the casing and the hub, a plurality of blades positioned in the flow path, and one or more circumferentially varying end-wall treatments formed in an interior surface of at least one of the casing or the hub. Each of the one or more circumferentially varying endwall treatments circumferentially varying based on their relative position to an immediately adjacent upstream bladerow. Each of the one or more endwall treatments is circumferentially varied in at least one of placement relative to the immediately adjacent upstream bladerow or in geometric parameters defining each of the plurality of circumferentially varying endwall treatments. Additionally disclosed is an engine including the compressor.