Heat exchange – Structural installation
Patent
1979-06-25
1981-07-28
Davis, Albert W.
Heat exchange
Structural installation
165129, 165DIG2, 165DIG5, 237 55, F24H 902, F24B 700
Patent
active
042805554
ABSTRACT:
The specification discloses a heat exchanger adapted to be coupled between the exhaust outlet of a room heating unit and a chimney for extracting heat from the exhaust gases flowing therethrough and returning the same to the room. The heat exchanger includes a plurality of vertically spaced rows of horizontally extending exhaust conveying tubes. End caps couple adjacent ends of the tubes to form an upwardly progressing serpentine path for the exhaust gases. A shroud structure separately houses individual vertically spaced clusters of the tubes so that air flows by convection generally horizontally past the tubes. Heat exchange efficiency is improved since a fan is not utilized and since the higher tubes do not come into contact with air already heated by the lower tubes.
REFERENCES:
patent: 1537016 (1925-05-01), Kroyer
patent: 1965102 (1934-07-01), Jerome
patent: 2374185 (1945-04-01), Kleen
patent: 2468909 (1949-05-01), Yeager et al.
patent: 2962218 (1960-11-01), Dibert
patent: 3813039 (1974-05-01), Wells
patent: 3944136 (1976-03-01), Huie
patent: 4044950 (1977-08-01), Engeling et al.
patent: 4103735 (1978-08-01), Warner
Davis Albert W.
Focarino Margaret A.
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