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:
May. 11, 2021
Filed:
Apr. 10, 2017
Mtu Aero Engines Ag, Munich, DE;
Markus Schlemmer, Mainburg/Sandelzhausen, DE;
Andreas Hartung, Munich, DE;
Karl-Hermann Richter, Markt Indersdorf, DE;
Herbert Hanrieder, Hohenkammer, DE;
MTU Aero Engines AG, Munich, DE;
Abstract
A guide vane segment for a turbomachine stage that has an inner ring segment () and a plurality of guide vanes () that are configured on the inner ring segment; a detuning region (V) of the inner ring segment extending in each case from a trailing edge () of at least one guide vane (), in particular of at least 50% of the guide vanes (), axially toward a leading edge () of the guide vane () over at most 50% of a width (B) of the inner ring segment () and/or at most 5 mm and/or circumferentially on both sides, in each case over at most 25% of a spacing (A) between adjacent guide vanes (), at and/or in which at least one cavity () is configured which contains at least one impulse element () with clearance of motion for providing impact contacts.