Patent · US Active

Seal support of titanium aluminide for a turbomachine

US10287989B2 · kind B2 · utility

0Cited by

8References

20Claims

0Family size

Assignee

MTU Aero Engines AG · DE

Inventors

Frank Stiehler · Bad Liebenwerda, DE
Stephan Klaen · Berlin, DE
Stefan BUSAM · Greifenberg, DE
Bernhard Theis · Munich, DE

Key dates

Filing date	Jan 28, 2014
Grant date	May 14, 2019
Priority date	—
Expiry date	Aug 31, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49297
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

Disclosed is a turbomachine having an annular flow duct and a housing structure surrounding the flow duct and a multiplicity of guide vanes and rotor blades which are arranged in the flow duct. The rotor blades are rotatably accommodated in the housing structure whereas the guide vanes are fixed in the housing structure, a plurality of guide vanes forming an annular guide vane ring. The housing structure has a seal in the region of the radially inner flow duct boundary in order to prevent hot gas escaping from the flow duct, which seal is arranged on guide vane roots of the guide vanes of the guide vane ring via a seal support and forms a seal against a rotatable seal surface, the seal support being formed from an intermetallic material, in particular a TiAl material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.