Patent · US Active

Brush seal

US9920838B2 · kind B2 · utility

2Cited by

5References

7Claims

0Family size

Assignee

MTU Aero Engines AG · DE

Inventors

Stephan Klaen · Berlin, DE
Julian Weber · Munich, DE
Frank Stiehler · Bad Liebenwerda, DE
Christoph Cernay · Bruckmühl, DE
Thomas Hess · Frankfurt, DE

Key dates

Filing date	Jul 2, 2015
Grant date	Mar 20, 2018
Priority date	—
Expiry date	Jul 28, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2250/294
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A brush seal for a gas turbine, in particular an aircraft engine, is disclosed. The brush seal includes a support ring which has a support plate and a support structure, where the support structure is arranged downstream with respect to the support plate. The brush seal also includes bristles which are arranged upstream with respect to the support ring, where ends of the bristles protrude radially inward beyond the support plate. The support structure yields when a scraping force acting radially outward occurs on a first lateral surface of the support structure, where the first lateral surface is directed radially inward, and the support structure does not yield when an axial operating force occurs on a second lateral surface of the support structure.

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