Electrical fan

Details Electrical fan Electrical fan

2006-04-26

2009-02-24

Le, Dang D (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S156380, C310S063000, C416S003000, C417S423700

Reexamination Certificate

active

07495362

ABSTRACT:
A electrical fan includes a frame (10) having a central tube (11), a bearing (30) received in the central tube, a stator (50) mounted around the central tube, and a rotor (70) being rotatably supported by a bearing in the stator. The frame defines an air inlet (19) and an air outlet (17) at two different sides thereof. The stator and the rotor expand radially along a direction from the air inlet to the air outlet. Fan blades (75) extend radially from the rotor. A hub (71) of the rotor has a streamline shaped outer surface. A stator core (511) of the stator is made by powder sintering technology.

REFERENCES:
patent: 3447469 (1969-06-01), Laing
patent: 4730989 (1988-03-01), Laing
patent: 5808395 (1998-09-01), Anders et al.
patent: 6132186 (2000-10-01), Cooper et al.
patent: 6672839 (2004-01-01), Schloetzer
patent: 6713907 (2004-03-01), Matsumoto
patent: 6713925 (2004-03-01), Laing et al.
patent: 6952068 (2005-10-01), Gieras et al.
patent: 2005/0067917 (2005-03-01), Kastinger

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