Furnace inducer outlet elbow

Details Furnace inducer outlet elbow Furnace inducer outlet elbow

1988-09-12

1990-02-13

Jones, Larry

Stoves and furnaces

Hot-air furnaces

Compressed air

126 99R, 126104A, 285236, 138109, F24H 300

Patent

active

048997269

ABSTRACT:
The elbow between the discharge end of the draft inducer and a horizontal vent pipe is provided with a well structure on the lower side of its discharge end such that condensate forming in the vent pipe is prevented from passing through the elbow into the draft inducer housing. The well structure, in addition to restraining the flow of the condensate, provides for the draining off thereof, and presents a minimal restriction to the flow of flue gases flowing to the elbow. Provision is also made for maintaining a tight seal between a rectangularly shaped inlet lip of the elbow and a rectangularly shaped discharge end of the inducer housing by making the inlet lip of varying thicknesses, with the lip being thinnest at its corners and thickest at its side midpoints.

REFERENCES:
patent: 2171023 (1939-08-01), Buxton
patent: 2824575 (1958-02-01), Rosen
patent: 4059293 (1977-11-01), Sipler
patent: 4380348 (1983-04-01), Swartz
patent: 4583770 (1986-04-01), Kreku et al.
patent: 4603680 (1986-08-01), Dempsey et al.
patent: 4653466 (1987-03-01), DeHaan et al.
patent: 4763695 (1988-08-01), Dooley

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