F - Mech Eng,Light,Heat,Weapons – 28 – D
Patent
F - Mech Eng,Light,Heat,Weapons
28
D
F28D 7/00 (2006.01) F27B 5/04 (2006.01) F27B 5/16 (2006.01) F27D 9/00 (2006.01) F27B 5/06 (2006.01) F27B 5/14 (2006.01)
Patent
CA 2043935
ABSTRACT OF THE INVENTION An internal heat exchange tube for cooling work within an industrial furnace is positioned to extend within the furnace and is closed at its axial end which is inside the furnace. Within the tube is an open ended, thin wall inner tube formed in the shape of a helical coil. Water intro- duced into the inner tube distributes thermally induced, circumferential stress gradients about both tubes to prevent tube bending while achieving fast cooling of the outer tube.
Hoetzl Max
Lingle Thomas M.
Gowling Lafleur Henderson Llp
Surface Combustion Inc.
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