Miniature axial fan

Details Miniature axial fan Miniature axial fan

1991-02-21

1993-11-23

Bertsch, Richard A.

Pumps

Motor driven

Motor within rotary pumping member

41742314, F04D 2500

Patent

active

RE0344567

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: 2397170 (1946-03-01), Jenkins
patent: 2427032 (1947-09-01), Troller et al.
patent: 2926838 (1960-03-01), Van Rijn
patent: 3362627 (1968-01-01), Papet
patent: 3819294 (1974-06-01), Honnold et al.
patent: 4063852 (1977-12-01), O'Connor
patent: 4120609 (1978-10-01), Chou et al.
patent: 4337405 (1982-06-01), Hishida
patent: 4373861 (1983-02-01), Papst et al.
patent: 4482302 (1984-11-01), Grignon
patent: 4554473 (1985-11-01), Muller
patent: 4639193 (1987-01-01), Reichert et al.

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