Patent · US Active

Intermediate element for a blade/rotor disc connection in a rotor of a turbomachine, associated rotor for a turbomachine, and turbomachine

US11905852B2 · kind B2 · utility

0Cited by

3References

18Claims

0Family size

Assignee

MTU Aero Engines AG · DE

Inventors

Martin Pernleitner · Dachau, DE
Klaus Wittig · Bobingen, DE
Manfred Dopfer · Unterschleißheim, DE
Dieter Freno · Munich, DE
Tino Hummel · Munich, DE

Key dates

Filing date	Jul 14, 2020
Grant date	Feb 20, 2024
Priority date	—
Expiry date	Jul 14, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/72
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An intermediate element is for a blade/rotor disk connection in a rotor of a fluid flow machine. The intermediate element is adapted to a shape of a blade root of a blade and to a blade root slot in a rotor disk for receiving the blade root such that, when arranged between the blade root and rotor disk, the intermediate element prevents contact between the blade root and rotor disk. The intermediate element has, on an outer surface that faces the rotor disk, at least one protrusion to reduce an air flow parallel to an axis of rotation of the rotor between the rotor disk and the intermediate element; and on an inner surface that faces the blade root, a recess that corresponds to the at least one protrusion.

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