| 摘要 |
Heat exchanger apparatus in which heat is transferred between two moving fluids, one of said fluids being the heating fluid and the other of said fluids being the fluid to be heated, which comprises a first flow path for said heating fluid, a second flow path for said fluid to be heated, a rotatable cylinder separating said first flow path from said second flow path, and fan or pump means operatively associated with said first and said second flow paths to promote movement of said heating fluid relative to one surface of said rotatable cylinder and to promote movement of said fluid to be heated relative to the other surface of said rotatable cylinder.
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