Combustion – Burner having electrical heater or igniter – Spark electrode in front of or adjacent fuel discharger
Patent
1999-09-13
2000-04-11
Dority, Carroll
Combustion
Burner having electrical heater or igniter
Spark electrode in front of or adjacent fuel discharger
431265, 313139, F23Q 300
Patent
active
06048196&
ABSTRACT:
A self-grounding igniter for an industrial burner that is more durable and less fragile, by virtue of the insulating jacket being relatively short and limited to the tip end of the igniter. The burner has a final inlet, an air inlet, a housing and a burner nozzle inside the housing. The igniter comprises a metal rod having a discharge electrode at one end and a mount and connector at the other end. The connector is adapted to be electrically coupled to a power source. An insulating jacket circumscribes a top end segment of the metal rod in proximity to the discharge electrode. A ground electrode metal sleeve is mounted to the outside of the insulating jacket in fixed proximity to the discharge electrode, thereby forming a spark gap having a fixed distance. This configuration provides an exposed metal surface on the rod between the insulating jacket and the mount. The exposed metal surface has a length substantially corresponding to the distance between the housing and the burner nozzle. The insulating jacket is also of two piece construction with two telescopically interfitting shells.
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Collier David
Stroup Scott
Dority Carroll
Eclipse Combustion, Inc.
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