Patent · US Active

Method for repairing a rotor system of a turbomachine, annular element for a rotor system of a turbomachine, and rotor system for a turbomachine

US8899919B2 · kind B2 · utility

1Cited by

5References

16Claims

0Family size

Assignee

MTU Aero Engines AG · DE

Inventors

Christian Heinzelmaier · Puchheim, DE
Michael Raiche · Munich, DE
Knut Werner · Munich, DE

Key dates

Filing date	Apr 15, 2011
Grant date	Dec 2, 2014
Priority date	—
Expiry date	Aug 14, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49318
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for repairing a rotor system (2) of a turbomachine, having a rotor (4) which has a groove (26) extending in the circumferential direction (58) of the rotor for accommodating an annular section (18; 28). The method has the following steps: chamfering a notch (40) in the groove (26); introducing a recess (44) into the groove (26); and inserting the annular section (18; 28) into the groove (26). At least one engagement element (48; 49) formed on the annular section (18; 28) engages in the recess (44) in order to form a lock against rotation in the circumferential direction (58).

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