Guide vane ring element for a turbomachine

US11066949B2 · kind B2 · utility

Assignee

• MTU Aero Engines AG · DE

Inventors

• Vitalis Mairhanser · Sigmertshausen, DE
• Birgit Effner · Dachau, DE
• Alexander Halcoussis · Haimhausen, DE
• Hannes Wolf · Dußlingen, DE

Key dates

• Filing date: Jul 29, 2016
• Grant date: Jul 20, 2021
• Expiry date: Oct 30, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2240/80
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The present invention relates to a guide vane ring element for a turbomachine, such as a gas turbine, with at least one drilled hole for the at least partial uptake of a flange of a rotatable guide vane, wherein an edge of the drilled hole on the vane element side is designed convexly along the edge in a first circumferential portion and, in particular, has a radius.