Patent ID: 7096932

Claim:
A multi-fluid heat exchanger having separate flow paths for at least two fluid streams to be heated or cooled by a third fluid stream, comprising: first and second, elongated, spaced, parallel tubular headers having opposed ends; spaced elongated tube slots in each of said headers with the tube slots in one header facing and aligned with the tube slots in the other header; a plurality of flattened tubes extending between said headers and having ends received in aligned ones of said tube slots; one of said tube slots in each header being unoccupied, said one of said tube slots in each header being aligned with each other and located at a predetermined location between the ends of said headers and between two groups of said flattened tubes, a pair of baffles in each header, one on one side of said one tube slot and between said one tube slot and the adjacent tube slot on said one side and the other on the opposite side of said one tube slot and between said one tube slot and the adjacent tube slot on said opposite side; and fins extending between and in heat transfer relation with at least the adjacent tubes in each of said two groups.