Device for shot-blasting surfaces inaccessible by a straight pipe

US5499519A · kind A · utility

Assignee

• Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.C.M.A · FR

Inventors

• Regis G. Brunier · Étampes, FR
• Dominique J. Cotto · Viry-Châtillon, FR
• Richard G. A. Joly · Ris-Orangis, FR
• Stephane Kerneis · Auxerre, FR
• Michel F. F. Silvestrelli · Bondoufle, FR

Key dates

• Filing date: Dec 21, 1994
• Grant date: Mar 19, 1996
• Expiry date: Dec 21, 2014

Classification

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

Abstract

A shot blasting device is provided for shot-blasting surfaces, particularly of a turbo aero engine, which are inaccessable by a straight pipe. The device includes a shot-blasting pipe which is suitably shaped for entering cavities to be shot blasted. The shot-blasting pipe extends from a rotor where the shot is directly deposited. A column affixes pressures pipes to the rotor and shot-blasting pipe to apply compressed air to the shot and eject the shot out of the rotor and through the shot-blasting pipe.