Electric motor with an air duct

Details Electric motor with an air duct Electric motor with an air duct

2008-05-13

2008-05-13

Mullins, Burton (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S06000A, C310S063000

Reexamination Certificate

active

07372180

ABSTRACT:
An electric motor includes a stator (3) secured in the motor housing (2), a rotatable rotor (4), a fan impeller (5) arranged on the rotor (4), and an annular air duct (6) arranged between the fan impeller (5) and the rotor (4) and having a shroud (7) spaced from the impeller (5) by a slot having an axial width (X), a dimensionally stable, with respect to the shroud (7), housing stop (8), an axially, resiliently displaceable fixing element (9) forming a stator stop (10) facing in a same direction as the housing stop (8), and a locking element.

REFERENCES:
patent: 4766337 (1988-08-01), Parkinson et al.
patent: 5081384 (1992-01-01), Rausch
patent: 5311089 (1994-05-01), Stroetgen et al.
patent: 5343101 (1994-08-01), Matani
patent: 6894409 (2005-05-01), Bostwick et al.
patent: 7157818 (2007-01-01), Jones
patent: 4415915 (1995-06-01), None
patent: 1309074 (2003-05-01), None
patent: 0149284 (1921-03-01), None

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