H - Electricity – 02 – K
Patent
H - Electricity
02
K
310/36, 310/70
H02K 1/06 (2006.01) F04D 25/06 (2006.01) H02K 1/16 (2006.01) H02K 1/26 (2006.01) H02K 5/24 (2006.01) H02K 21/12 (2006.01) H02K 29/08 (2006.01)
Patent
CA 1275679
MOTOR DRIVEN AIR MOVING APPARATUS FOR HIGH SPEED, CONSTANT DUTY OPERATION Abstract of the Disclosure A motor driven air moving apparatus adapted to high speed, constant duty operation has a DC permanent magnet motor with a stator and rotor, one having a wound core with an even number of identically sized, evenly spaced teeth and the other having an even number of identically sized, permanent magnet poles. One of the rotor and stator has a skew at an angle from the axial, the maximum achievable skew being less than one tooth pitch due to short axial core width. A groove is provided along the midline of each of the teeth of the core which is parallel to and shallower than the tooth separating slots and contains no winding. The groove is effective to divide the tooth magnetically in half and thus decrease the effective tooth pitch, whereby, simultaneously, the magnetically induced pulsating angular velocity of the rotor and resultant audible noise are reduced and the system efficiency of the motor and air moving apparatus combination at high speeds in constant duty operation is increased.
547872
Gowling Lafleur Henderson Llp
Itt Automotive Electrical Systems Inc.
LandOfFree
Motor driven air moving apparatus for high speed, constant... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Motor driven air moving apparatus for high speed, constant..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor driven air moving apparatus for high speed, constant... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1237548