Low-noise vapor exhaust hood

Details Low-noise vapor exhaust hood Low-noise vapor exhaust hood

1995-12-04

1998-02-24

Price, Carl D.

Stoves and furnaces

Stove hoods

126299R, 454906, F24C 1520

Patent

active

057202745

ABSTRACT:
The invention relates to a vapor exhaust hood with a housing which features at least one intake opening equipped at a minimum with one filter, and features at least one outlet opening, and the inside surfaces of which are in part lined with a sound-deadening material, with a fan arranged in the housing. Arranged in the housing, at least opposite each inlet opening of the fan, is sound-absorbing material which from the opposite inlet opening is spaced at least the radius of the fan wheel. The sound-absorbing material has a surface which in size corresponds at least to a circular surface whose radius matches that of the fan wheel. Further measures for noise reduction consist in the arrangement of a vane in the area of the outlet opening, in the application of sound-deadening and/or sound-damping material as well as in the elastic mounting of fan and/or fan motor. The invention thus creates a vapor exhaust hood in which, for one, the number of noise generators is reduced and, for another, inevitable noise is damped and deadened.

REFERENCES:
patent: 2056517 (1936-10-01), Guthrie
patent: 2086112 (1937-07-01), Atkins
patent: 2415621 (1947-02-01), Arnhym
patent: 3156233 (1964-11-01), O'Connell
patent: 3688867 (1972-09-01), Antonetti et al.
patent: 3789954 (1974-02-01), Raleigh
patent: 4174020 (1979-11-01), Challis
patent: 5042458 (1991-08-01), Spencer et al.

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