Verfahren zur Erzeugung von Kühlungsöffnungen in einem Brennkammerkopf

Details

Veröffentlichungs-Nr.

EP2977133

Aktenzeichen

EP15176390

Anmeldetag

13. Juli 2015

Veröffentlichung

13. September 2017

Erteilung

13. September 2017

Rechtsraum

EP

IPC

B23B35/00B08B3/02F23R3/06

Abstract

A method of producing cooling apertures (68) in a combustion chamber head (50) comprises mechanically drilling a plurality of cooling apertures (68) through the combustion chamber head (50) from the downstream side (50B) of the combustion chamber head (50A. A tool (94) is inserted through at least one aperture (56) for a fuel injector from the downstream side (50B) of the combustion chamber head (50) and the tool (94) is rotated about its axis whilst within the aperture (56) for a fuel injector. Fluid is supplied from the drilling machine through the tool (94) and jets of fluid (F) are directed from nozzles (98) in the tool (94) with at least a radial component towards the cooling apertures (68) on the upstream side (50A) of the combustion chamber head (50) to remove burrs and/or caps (70) adjacent the cooling apertures (68). The present disclosure enables cooling apertures (68) to be drilled through a combustion chamber head (58) using conventional mechanical drilling in a viable and cost effective manner.

Anmelder

Firma

Rolls-Royce plc

Land

🇬🇧 Großbritannien

Fachgebiete