Fan having an internal rotor motor including a rapid fixing...

Details Fan having an internal rotor motor including a rapid fixing... Fan having an internal rotor motor including a rapid fixing...

2005-05-17

2005-05-17

Nguyen, Hoang (Department: 3748)

Rotary kinetic fluid motors or pumps

With separating means or guard for solid matter in working...

C415S121100, C416S20400A

Reexamination Certificate

active

06893212

ABSTRACT:
A fan having an internal rotor motor with a rapid fixing device for a fan wheel, for both centrifugal and axial fans, including a casing (12) containing an electric motor with an internal rotor (13) connected to at least one fan wheel (14, 14′) and being enclosed by a protection grid (15) wherein a first coupling element (17, 17′), attached to one end of a motor shaft (16) of the electric motor (13) and a second coupling element (23, 23′) in one portion of at least one fan wheel (14, 14′), wherein the first and second coupling elements (17, 17′, 23, 23′) are complementary to each other and have a polygonal type section, and are fixed by means of reciprocal blocking means (26, 27, 29).

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patent: 6530748 (2003-03-01), Light et al.
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EPO Search Report.

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