Patent · US Active

Run-in coating for an outer air seal of a turbomachine

US10480341B2 · kind B2 · utility

0Cited by

4References

19Claims

0Family size

Assignee

MTU Aero Engines AG · DE

Inventors

Petra Kufner · Poing, DE
Walter Gieg · Eichenau, DE
Rudolf Stanka · Rattenkirchen, DE
Rene Schneider · Oederan, DE
Norman Cleesattel · Zorneding, DE
Joachim Lorenz · Bensheim, DE

Key dates

Filing date	Nov 30, 2016
Grant date	Nov 19, 2019
Priority date	—
Expiry date	Dec 22, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T50/60
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a run-in coating (10) for an outer air seal of a turbomachine, especially of an aero engine, comprising a substrate (12) of segmented form which carries a honeycomb structure (14) with an run-in surface (15) to face rotor blades of a rotor of the turbomachine, wherein a radial thickness of the honeycomb structure (14) varies in the circumferential direction. The invention furthermore relates to an outer air seal for a turbomachine and also to a turbomachine with an outer air seal.

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