Tubular centrifugal fan

Details Tubular centrifugal fan Tubular centrifugal fan

1982-08-23

1988-10-04

Hershkovitz, Abraham

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Access opening through portion of casing or cover

415217, 415219R, 415DIG3, 417360, F04D 2960

Patent

active

047752947

ABSTRACT:
A centrifugal fan having a tubular housing in which an inlet funnel and fan assembly are contained. The fan assembly includes a fan wheel with the fan wheel inlet and inlet funnel overlapping during normal fan operation. A motor is connected to drive the fan wheel and a door is provided for access to the inside of the housing, the fan wheel assembly and motor being supported by the door for movement therewith. Within the present invention, the door further supports the inlet funnel in overlapping relation with the fan wheel inlet for movement with the door, fan wheel assembly and motor without alteration of the overlapping relation.

REFERENCES:
patent: 2695747 (1954-11-01), Miller
patent: 2932441 (1960-04-01), Harp
patent: 3871795 (1975-03-01), Habdo et al.
patent: 4092088 (1978-05-01), Nemesi
patent: 4253796 (1981-03-01), Phillipps et al.

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