GUIDAGE ROTULANT D'UNE BOUGIE D'ALLUMAGE DANS UNE CHAMBRE DE COMBUSTION D'UNE TURBOMACHINE

摘要

The chamber has a spark plug (11) provided in an external casing and extended in guiding units composed of a chimney (15) and tubular guides (20, 24), where the guiding units are assembled in an opening (13) of a revolution wall of the chamber. The tubular guides are crossed axially by the spark plug, and are assembled with an axial clearance (j2) and a transversal clearance on the chimney that is fixed on the revolution wall of the chamber. The tubular guides are placed in the chamber by utilizing the opening. The spark plug is equipped in one of the two tubular guides.