Method of making a combustion apparatus for high-temperature env

Details Method of making a combustion apparatus for high-temperature env Method of making a combustion apparatus for high-temperature env

1994-06-09

1995-08-01

Cuda, Irene

Metal working

Method of mechanical manufacture

Fluid pattern dispersing device making, e.g., ink jet

29458, B23P 1500

Patent

active

054370990

ABSTRACT:
A method of making a novel structure for the first stage of a multiple-stage combustion, in which a metal strip is coated with a catalyst on only one side. The strip is also corrugated with a herringbone pattern. The strip is then folded back and forth upon itself to form a reactor of a desired cross-section. The reactor has rows of channels that are formed between the layers of the metal. The single coated side of the metal defines the walls of the channels in every other row. The fuel-air mixture that flows through the coated channels is combusted. The fuel-air mixture that flows through the uncoated channels is not combusted, and cools the catalyzed surfaces. The herringbone corrugations prevent the layers of metal from nesting together, and also define zigzag paths for flow of combustion gas. The one or more stages subsequent to the ignition stage can employ a catalyst capable of operating at the very high temperatures present in gas turbines. The subsequent stages can also be non-catalytic. Thus, the first stage provides catalytic ignition, and the subsequent stages complete the combustion.

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