Patent · US Expired

Method for surface blasting cavities, particularly cavities in gas turbines

US7644599B2 · kind B2 · utility

8Cited by

34References

28Claims

0Family size

Assignees

MTU Aero Engines AG · DE
Sonats · FR

Inventors

Stephen Hoffmann-Ivy · Karlsfeld, DE
Patrick Cheppe · Saint-Sébastien-sur-Loire, FR
Jean-Michel Duchazeaubeneix · Les Sorinières, FR
Erwin Bayer · Dachau, DE

Key dates

Filing date	Dec 7, 2005
Grant date	Jan 12, 2010
Priority date	—
Expiry date	May 25, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/479
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

In a method for surface blasting hollow spaces or cavities, especially cavities of gas turbines, shot balls are accelerated with the aid of at least one vibrator, whereby the ultrasonically accelerated shot balls are directed onto surfaces of a cavity that is to be blasted. The vibrator is preferably positioned with a small spacing distance, preferably on the order of magnitude of the diameter of the shot balls utilized for the blasting, from the cavity to be blasted.

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