Igniting and sensing flame on a fuel gas burner

Details Igniting and sensing flame on a fuel gas burner Igniting and sensing flame on a fuel gas burner

F - Mech Eng,Light,Heat,Weapons

23

Q

F23Q 3/00 (2006.01) F23D 14/46 (2006.01) F23N 5/12 (2006.01)

Patent

CA 2222366

A system and method for igniting gaseous fuel-air mixture flowing from flame generating ports in a burner tube having a plate welded to the side of the tube and extending from the tube in close proximity to one of the flame ports. The plate has a cut-out or aperture which forms a plenum which reduces the flow velocity and the plate is electrically grounded. A spark electrode has one end disposed in the aperture and upon application of a high voltage potential to the electrode a spark is discharged to the aperture and the mixture in the plenum is ignited and a portion of the resultant flame retained in the plenum aperture for current rectification sensing of flame presence.

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