Furnace heat exchanger

Details Furnace heat exchanger Furnace heat exchanger

2006-08-29

2006-08-29

Leo, Leonard R. (Department: 3753)

Heat exchange

Conduit within, or conforming to, panel or wall structure

Opposed plates or shells

C165S146000, C126S11000R, C126S11600A

Reexamination Certificate

active

07096933

ABSTRACT:
A furnace heat exchanger with multiple parallel flow passages wherein the last flow passage extends downwardly from its plane as it approaches the outlet so as to result in a lower overall height of the heat exchanger. Preferably both the upper wall and the lower wall of the last passage extend downwardly such that the cross-sectional area of the last flow passage is not reduced and is preferably increased as it approaches the outlet. The bottom wall extension is preferably curvilinear and has substantially the same curvature as a return bend at the inlet of the penultimate flow passage.

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