Combustion – Process of combustion or burner operation – Flame shaping – or distributing components in combustion zone
Patent
1977-08-30
1979-07-10
McCall, James T.
Combustion
Process of combustion or burner operation
Flame shaping, or distributing components in combustion zone
431183, 431185, F23M 300
Patent
active
041606400
ABSTRACT:
The method of fuel burning in combustion chambers resides in predivision of the primary and secondary air into discrete coaxial annular streams, swirling of the coaxial annular streams of primary air tangentially about the longitudinal axis of the combustion chamber, the adjacent annular streams being swirled in opposite directions, admission of the swirled coaxial streams of primary air and a portion of the coaxial annular streams of secondary air simultaneously with fuel into the burning zone to form a recirculation flow of the fuel-air mixture, and delivery of the remaining portion of the coaxial annular streams of secondary air into the mixing zone of the combustion chamber. The annular combustion chamber carrying this method into effect comprises two concentric annular flame tubes for restriction of the burning zone, with an annular stabilizer disposed therebetween and having holes for fuel supply provided in the outer wall thereof. The stabilizer with the flame tubes define two concentric annular ducts with primary air supply members disposed therein and comprising a vane swirler and a slotted swirler with tangentially disposed slots, arranged in series in a downstream direction. The secondary air supply members are placed between the primary air supply members and the concentric annular flame tubes.
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Ivakhnenko Viktor V.
Kuznetsov Andrei L.
Lamm Jury A.
Maev Vladimir A.
Prokushenkov Nikolai N.
Adams Bruce L.
Burns Robert E.
Lobato Emmanuel J.
McCall James T.
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