Pilot flame gas burners and burner cap for these improved burners

摘要

In a pilot flame gas burner, particularly for a domestic appliance, comprising principal orifices for main flames distributed peripherally and peripheral gas conduit means beneath the principal orifices to generate at least one pilot flame extending peripherally to heat the foot of the main flames, the invention provides the following improvement. Said peripheral gas conduit means are arranged to generate a pilot flame collar extending continuously over the periphery of the burner without projecting appreciably from the peripheral surface of the burner and so that in zones disposed beneath the principal orifices, and each associated with at least one principal orifice, the pilot flame is more active and is adapted to heat the corresponding feet of the main flames.