Cooling of combustion chamber walls using a film of air
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United States of America Patent
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-
May 18, 1982
Grant Date -
N/A
app pub date -
Feb 29, 1980
filing date -
Mar 1, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for cooling the wall of a combustion chamber, in which air is taken from the space outside the chamber by means of an annular protuberance which extends beyond the outside of the chamber and forms an annular pocket, which is provided with outside air by means of holes and communicates with the interior of the chamber by means of an annular slot between the downstream internal wall of the chamber and a small annular tongue which is an extension of the upstream wall. The air intake holes for the pocket are arranged in the wall of the protuberance which is more or less perpendicular to the wall of the chamber which faces the air flow and have a sufficiently small diameter to make it possible to arrange them in at least three concentric rows, which are offset from one row to the next.
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