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:
Apr. 11, 2017

Filed:

Jul. 08, 2014
Applicant:

Mtu Aero Engines Ag, Munich, DE;

Inventors:

Inga Mahle, Munich, DE;

Norbert Huebner, Munich, DE;

Rudolf Stanka, Munich, DE;

Gottfried Schuetz, Munich, DE;

Norman Cleesattel, Munich, DE;

Assignee:

MTU Aero Engines AG, Munich, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 9/04 (2006.01); F01D 5/14 (2006.01); F01D 21/04 (2006.01);
U.S. Cl.
CPC ...
F01D 9/041 (2013.01); F01D 5/141 (2013.01); F01D 21/045 (2013.01); F05D 2240/121 (2013.01); Y02T 50/673 (2013.01);
Abstract

A gas turbine stage including a rotor blade array having a plurality of rotor blades and an adjacent stator vane array having a plurality of stator vanes which have leading edges facing the rotor blade array. In a first radial position of a rear face of the rotor blade array, a minimum axial gap is formed between this rear face and an opposite first contact region a stator vane leading edges, and in a second radial position of the rear face different from the first position, the minimum axial gap is formed between the rear face and an opposite second contact region. Between the first and second contact regions, this stator vane leading edge has an axial offset of no more than 0.6% of a radial height of the stator vane leading edge.


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