F - Mech Eng,Light,Heat,Weapons – 28 – F
Patent
F - Mech Eng,Light,Heat,Weapons
28
F
257/19
F28F 7/00 (2006.01) F28D 11/04 (2006.01) F28F 19/00 (2006.01)
Patent
CA 1075227
ABSTRACT OF THE DISCLOSURE A stationary cylinder is jacketed to provide a first passage for a first heat exchange medium and forms a chamber for throughflow of a product to be heated or cooled. The cylinder contains a coaxial rotor comprising a shaft having a cylindrical outer surface and forming a second passage for a second heat exchange medium, whereby said sta- tionary cylinder and said shaft surface are heated or cooled by said media. Each of a plurality of tubes has its oppo- site ends secured to the shaft and has an intermediate por- tion extending outside the shaft in spaced relation to its cylindrical outer surface. The second heat exchange medium is fed through one end portion of the shaft to adjacent ends of said second passage and said tubes and is discharged from the opposite ends thereof through the other end portion of the shaft. Scraper means protrude from the rotor between adjacent tubes and are operable to sweep the inner surface of the jacketed cylinder.
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