Blower muffling apparatus

Details Blower muffling apparatus Blower muffling apparatus

1996-02-05

1997-09-30

Thorpe, Timothy

Pumps

With muffler acting on pump fluid

4174235, 415119, 181202, F04B 3900

Patent

active

056720521

ABSTRACT:
A blower muffling apparatus includes a blower chamber for housing a blower therein, an exhaust chamber positioned adjacent the blower body side of a blower disposed in the blower chamber, communicating in one of upper and lower portions with the blower chamber, and having an exhaust port in the other portion, a muffling passage chamber disposed adjacent the blower chamber in the axial direction of the blower, and having one end communicating with the other portion of the exhaust chamber and the other end communicating with a discharge port of the blower through a flexible exhaust duct, and a duct accommodating chamber for accommodating the flexible exhaust duct therein, each of the chambers being surrounded by a sound-absorbing material. Exhaust gas of the blower is discharged from the flexible exhaust duct through the muffling passage chamber and the exhaust chamber to thereby absorb exhaust noise of the blower.

REFERENCES:
patent: 1610774 (1926-12-01), Hanson
patent: 3736074 (1973-05-01), Kilbane et al.
patent: 3989415 (1976-11-01), Van-Hee et al.
patent: 4264282 (1981-04-01), Crago
patent: 5407330 (1995-04-01), Rimington et al.

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