Furnace

Details Furnace Furnace

1977-10-27

1979-12-18

Sprague, Kenneth W.

Liquid heaters and vaporizers

Flue

Vertical

F22B 712

Patent

active

041788800

ABSTRACT:
A furnace comprising a fire tube and a final combustion chamber located axially downstream thereof is provided with a restricted passage between the fire tube and the final combustion chamber. The passage is located in a partition wall defining the inward end of the fire tube, and a number of grooves, being open towards the fire tube and directed tangentially with respect to an imaginary circle, inscribed within said passage, are formed in the sloping surface of said wall.

REFERENCES:
patent: 2383924 (1945-08-01), Way et al.
patent: 2554092 (1951-05-01), DePoray
patent: 2568781 (1951-09-01), Watts
patent: 3638622 (1972-02-01), Ostbo

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