Miniature axial fan

Details Miniature axial fan Miniature axial fan

1989-02-21

1991-02-12

Casaregola, Louis J.

Pumps

Motor driven

Motor within rotary pumping member

41742314, F04D 2508, F04D 2944

Patent

active

049920294

ABSTRACT:
The invention relates to a miniature axial fan particularly of an axially compact construction, having a central motor driving a rotor disk with a housing surrounding the rotor disk in which an interior housing wall on the inflow side is cylindrical and extends past the axial center of the housing and then this cylinder wall expands outwardly to the outlet side of the housing to produce an enlargement of the flow cross-section. The housing has webs extending inwardly from the outlet side of the housing that carry the central driving motor with the rotor disk. A number of blades are mounted on the rotor disk which numbers differs from the number of webs.

REFERENCES:
patent: 2926838 (1960-03-01), Van Rijn
patent: 3362627 (1968-01-01), Papst
patent: 4063852 (1977-12-01), O'Connor
patent: 4120609 (1978-10-01), Chou et al.
patent: 4373861 (1983-02-01), Papst et al.
patent: 4639193 (1987-01-01), Reichert et al.

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