US2014134551A1PendingUtilityA1

Combustion Instability Suppression System Using Heat Insulating Flameholding Material

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Assignee: MASSACHUSETTS INST TECHNOLOGYPriority: Apr 12, 2012Filed: Apr 8, 2013Published: May 15, 2014
Est. expiryApr 12, 2032(~5.8 yrs left)· nominal 20-yr term from priority
Inventors:Ahmed F. GhoniemSantosh Janardhan ShanbhogueSeunghyuck Hong
F23R 3/286F23R 2900/00014F23M 20/005F23M 99/005
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Claims

Abstract

Combustor. The combustor includes a duct through which an air/fuel mixture flows, including a flame-anchoring region. An insulating material is located proximate the flame-anchoring anchoring region whereby combustion instability is decreased.

Claims

exact text as granted — not AI-modified
1 . Combustor comprising:
 a duct through which an air/fuel mixture flows including a flame-anchoring region; and   an insulating material located proximate the flame-anchoring region whereby combustion instability is suppressed.   
     
     
         2 . The combustor of  claim 1  wherein the duct includes a converging region followed by a step expansion region serving as the flame-anchoring region. 
     
     
         3 . The combustor of  claim 1  wherein the insulating material is a ceramic block. 
     
     
         4 . The combustor of  claim 2  wherein the duct further includes a constant area region between the converging region and the step expansion region.

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