F - Mech Eng,Light,Heat,Weapons – 28 – F
Patent
F - Mech Eng,Light,Heat,Weapons
28
F
257/20
F28F 1/40 (2006.01) F28F 13/12 (2006.01)
Patent
CA 1285269
TURBULATOR CONSTRUCTION FOR A HEAT EXCHANGER Abstract of the Disclosure A turbulator construction for a heat exchang- er. The turbulator is fabricated from a single sheet of flat metal which is bent in the form of a double helix. When disposed in a heat exchanger tube, the turbulator defines a pair of helical passages. The upstream end of the turbulator is flat and extends diametrically across the tube to divide the tube into a pair of inlet passages of substantially equal area. Each inlet passage communicates with one of the helical passages. In one form of the invention, the turbulator is formed from an elongated rectangular sheet of metal and in the bent condition, the peripheral edges of the helix are spaced from the tube to provide gaps there- between. In a second form of the invention, the helix is formed from an elongated sheet with the side edges formed of a series of interconnected convex edge por- tions. In the bent condition, the curved edge portions conform to the inner surface of the tube, so that there is no appreciable gap between the helix and the tube.
588991
Aos Holding Company
Riches Mckenzie & Herbert Llp
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