Patent · US Active

System with a rotor blade for a gas turbine with a blade root protective plate having a sealing section

US12091979B2 · kind B2 · utility

0Cited by

2References

18Claims

0Family size

Assignee

MTU Aero Engines AG · DE

Inventors

Martin Pernleitner · Dachau, DE
Dieter Freno · Munich, DE
Manfred Dopfer · Unterschleißheim, DE

Key dates

Filing date	Aug 5, 2020
Grant date	Sep 17, 2024
Priority date	—
Expiry date	Nov 21, 2040

Classification

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

Abstract

A rotor blade system includes a blade root, a blade neck adjoining the blade root, an airfoil adjoining the blade neck, a radially outer partition wall, an axially forward partition wall and an axially rearward partition wall, connected to the radially outer partition wall such that the partition walls surround the blade neck on three sides, the partition walls projecting beyond the blade neck in the circumferential direction, and further including a blade root protection plate designed to be arranged on the blade root. It is provided that the blade root protection plate have at least one sealing portion that extends in the axial direction from the forward partition wall to the rearward partition wall and whose radially outer side is disposed opposite the radially outer partition wall when the blade root protection plate is arranged on the blade root.

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