Shield for a hot surface ignitor and method for fabricating a shield

Shield for a hot surface ignitor and method for fabricating a shield

An ignitor assembly includes a hot surface ignitor of a resistance material and a super alloy shield surrounding the ignitor. The shield comprises a longitudinally extending cylindrically shaped super alloy sheet having a plurality of first and second alternating transverse strips. The strips are fo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SHAFFER, PETER T. B
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
EXTINGUISHING-DEVICES
HEATING
IGNITION
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Beschreibung
Zusammenfassung:An ignitor assembly includes a hot surface ignitor of a resistance material and a super alloy shield surrounding the ignitor. The shield comprises a longitudinally extending cylindrically shaped super alloy sheet having a plurality of first and second alternating transverse strips. The strips are formed by making a plurality of transverse slits or cuts in a flat sheet of super alloy material. The first alternating strips are bowed outwardly in a first direction and the second alternating strips are bowed outwardly in an opposite direction to thereby form a cage like cylindrical structure which forms a part of the ignitor assembly. The ignitor generally includes a base portion and is inserted into the cage like structure.