SEMICONDUCTOR IGNITER PLUG FOR AN AIRCRAFT TURBOMACHINE, COMPRISING SCOOPS FOR DISCHARGING POSSIBLE FUEL RESIDUES

摘要

The invention relates to an igniter plug (30) for an aircraft turbomachine, comprising an external electrode (34), an internal electrode (36), as well as a semiconducting body (38) arranged between the external electrode and the internal electrode and set back from these electrodes so as to define an electrical arc forming cavity (40), the bottom of which is formed by an axial end surface (42) of the semiconducting body. According to the invention, the end of the external electrode (34) is equipped with at least one scoop (44) for discharging possible fuel residues present in the cavity (40).

主权项

1. An igniter plug (30) for an aircraft turbomachine, including a nose (30a) comprising an external electrode (34), an internal electrode (36), as well as a semiconducting body (38) arranged between the external electrode and the internal electrode and set back from a free end of the external electrode and a free end of the internal electrode, so as to define an electric arc forming cavity (40) the bottom of which is formed by an axial end surface (42) of the semiconducting body,
characterised in that the end of the external electrode (34) is equipped with at least one scoop (44) for discharging possible fuel residues present in said cavity (40), said discharging scoop (44) being made by a notch opening at least onto an axial end surface (34a) of the external electrode (34), said notch extending between a first end (46) leading into said cavity (40), and a second end (48) opposite the first one.