Electric motor

Details Electric motor Electric motor

1997-07-02

1999-07-20

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 63, 310 61, 310 60A, 298893, 298894, H02K 1716, H02K 900, H02K 132

Patent

active

059259604

ABSTRACT:
An electric motor comprises a stator having a plurality of conductive windings radially spaced about a central axis. The motor includes a rotor located radially inward of the stator and rotationally fixed with respect to a shaft disposed along the central axis. The rotor defines an area in which, upon rotation of the rotor, a low pressure vacuum is created drawing air radially outward, with respect to the rotor, from the area. The rotor also includes an annular plate disposed at a transverse end of the rotor coaxial with the shaft. The annular plate defines at least one hole extending axially through the annular plate and in pneumatic communication with the area. The hole is configured so air is drawn by the low pressure vacuum through the hole to the area.

REFERENCES:
patent: 3832583 (1974-08-01), Chang
patent: 4797602 (1989-01-01), West
patent: 5144175 (1992-09-01), Craggs
patent: 5655361 (1997-08-01), Kishi
patent: 5789833 (1998-08-01), Kinishita et al.

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