Linear induction motor for elevator

Details Linear induction motor for elevator Linear induction motor for elevator

1992-01-29

1992-12-29

Olszewski, Robert P.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

310 12, 104292, 104294, B66B 1104

Patent

active

051744163

ABSTRACT:
A linear induction motor for an elevator which includes a secondary, stationary element having a body formed with a plurality of iron-core mounting holes arranged longitudinally of the body at a certain interval, and iron cores disposed in the holes. The stationary, secondary element allows magnetic flux flowing therethrough to pass through the iron cores, thereby reducing the dimension of the total magnetic gap in the motor. Furthermore, the combination of the iron cores in which eddy currents flow with difficulty and the body along which eddy currents tend to flow makes it possible to reduce the ineffective eddy currents.

REFERENCES:
patent: 3820472 (1974-06-01), Schwarzler
patent: 4570753 (1986-02-01), Ohta et al.
patent: 5005672 (1991-04-01), Nakai et al.

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