Igniter for ignition of gas by electrical discharge has gas spray jet in holder, cylindrical cap with flame aperture and jacket piece on jet holder round free end of jet

摘要

The igniter includes a gas spray jet, an insulating jet holder and a cylindrical cap with a flame aperture (91). The cap is round the jet holder and has a jacket piece (82) round the front end of the jet close to its outer limit, thereby enabling the diffusion of the gas expelled from the spray jet to be controlled.