Patent · US Active

Sealing of the flow channel of a turbomachine

US9512734B2 · kind B2 · utility

3Cited by

7References

17Claims

0Family size

Assignee

MTU Aero Engines AG · DE

Inventors

Manfred Feldmann · Eichenau, DE
Norbert Schinko · Munich, DE
Sebastian Kaltenbach · Munich, DE
Joachim Lorenz · Bensheim, DE

Key dates

Filing date	Aug 6, 2013
Grant date	Dec 6, 2016
Priority date	—
Expiry date	Apr 4, 2035

Classification

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

Abstract

A turbomachine having a flow channel and a housing radially surrounding the flow channel, a plurality of stationary and moving blades being situated in the flow channel, stationary blades being situated adjacent to the moving blades in the axial direction, and the stationary blades having at least one stationary blade hook which engages with at least one housing hook for the purpose of connecting the stationary blades to the housing. A sealing and lining element is situated in the radial direction between the moving blades adjacent to the stationary blades and the housing, and has a sealing structure interacting with blade tips of the moving blades. A heat protection element is provided in the area between the sealing and lining element and the housing, and a sealing element being situated on the heat protection element for the purpose of sealing contact with the housing hook.

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