Patent ID: 8986001
Filing Date: 2015-03-24
Classification: F23D,F23L,F28F,Y02E

Abstract:
1. A heat recuperator comprising: a tubular body, the tubular body including a plurality of fins extending radially outward from the tubular body, the plurality of fins being disposed in a plurality of segments arranged longitudinally along the tubular body, the plurality of fins in each segment being disposed about a circumference of the tubular body, adjacent segments of fins being circumferentially offset with one another, the tubular body including a plurality of depressions extending radially inward from the tubular body between adjacent ring segments, at least one of the plurality of depressions being disposed between adjacent segments of fins, wherein the at least one of the plurality of depressions extends at least partially around a circumference of the tubular body along a ring segment, the ring segment extending over a circumferential chord of the tubular body that spans over two or more fins on an adjacent ring segment.