Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1990-12-27
1993-01-26
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310125, H02K 1716
Patent
active
051824833
ABSTRACT:
A squirrel-cage rotor includes a rotor core composed of steel sheets. Each steel sheet has in the outer circumference a number of slot-forming punched portions along the outer circumference thereof, each punched portion including a main portion and an additional portion inclined toward one of two sides along the outer circumference of the rotor relative to the position of the main portion, such that each punched portion has an unsymmetrical shape. The units include those formed by laminating the steel sheets having the respective additional portions inclined in the direrction of one side, and those formed by laminating the steel sheets having the respective additional portions inclined toward the other side. Slots are formed so as to be parallel with the rotor axis. The center line 1 of each main portion is deviated from a distal end of each additional portion by a distance d satisfying the following expression (A) in the direction of the outer periphery of the rotor: ##EQU1## where D=rotor diameter
REFERENCES:
patent: 3027474 (1962-03-01), Rosenberry, Jr.
patent: 3778652 (1973-12-01), Endress
patent: 4268772 (1981-05-01), Workman
AIEE, vol. 77, pp. 43-53, "Stray-Load Losses and Stray Torques in Induction Machines," Adnan M. Odok, Apr. 1958, Conference Proceedings, Dayton, OH.
Hibino Sadayoshi
Mochizuki Motoyasu
Sato Tadayuki
Kabushiki Kaisha Toshiba
Rebsch D. L.
Shaw, Jr. Philip M.
Stephan Steven L.
LandOfFree
Squirrel-cage rotor with shaped-conductor harmonic reduction does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Squirrel-cage rotor with shaped-conductor harmonic reduction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Squirrel-cage rotor with shaped-conductor harmonic reduction will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1414449