Cleaning of a turbo-machine stage

US9492906B2 · kind B2 · utility

Assignee

• MTU Aero Engines AG · DE

Inventors

• Jürgen Rösing · Sehnde, DE
• Frank Seidel · Schnaittenbach, DE
• Lutz Winkler · Wunstorf, DE
• Bernd Kriegl · Olching, DE
• Thomas Uihlein · Dachau, DE
• Martin Dürr · Birkenfeld, DE
• Fabian Moritz · Munich, DE

Key dates

• Filing date: Aug 3, 2011
• Grant date: Nov 15, 2016
• Expiry date: Apr 28, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B24C3/325
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a method for cleaning a turbo-machine stage (100) consisting of at least one of the following steps: a cleaning nozzle (1) is introduced into an opening of a turbo-machine, in particular into an inspection opening (220); and the blade (100) of the stage is acted upon by solid particles, said particles subliming at the blade temperature, in particular into dry ice particles.