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.

Date of Patent:
Nov. 20, 2018

Filed:

Dec. 28, 2015
Applicant:

General Electric Company, Schenectady, NY (US);

Inventor:

Michael David McDufford, Greenville, SC (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/22 (2006.01); F01D 5/02 (2006.01); F01D 5/14 (2006.01); F04D 29/32 (2006.01); F04D 29/66 (2006.01);
U.S. Cl.
CPC ...
F01D 5/225 (2013.01); F01D 5/02 (2013.01); F01D 5/147 (2013.01); F04D 29/324 (2013.01); F04D 29/668 (2013.01); F05D 2220/32 (2013.01); F05D 2240/305 (2013.01); F05D 2240/306 (2013.01); F05D 2260/36 (2013.01); F05D 2260/96 (2013.01); Y02T 50/671 (2013.01); Y02T 50/673 (2013.01);
Abstract

A rotor blade for a gas turbine that is configured for use within a row of samely configured rotor blades attached to and circumferentially spaced about a rotor disc. The rotor blade may further include: an airfoil defined between pressure and suction faces; and a midspan shroud comprising a pressure wing and a suction wing extending from the airfoil. The pressure wing and the suction wing of the midspan shroud may be configured so to cooperatively form an interface between installed neighboring ones of the rotor blades within the row of samely configured rotor blades. The interface may include a first one of the pressure wing and the suction wing disposed as an upstream wing and a remaining other one of the pressure wing and the suction wing disposed as a downstream wing. The interface may include the upstream wing and the downstream wing configured as a downstream narrowing step.


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