Device for rotary-driving a centrifuge arm and method for power-

Details Device for rotary-driving a centrifuge arm and method for power- Device for rotary-driving a centrifuge arm and method for power-

1989-04-05

1990-04-24

Ro, Bentsu

Electricity: motive power systems

With flywheel or massive rotary member

318150, H02K 702

Patent

active

049203037

ABSTRACT:
The power supply unit (20) includes an average voltage multiphase supply network (21) with power less than the theoretical power required to feed the high-power electric motor (5) for rotary-driving a centrifuge arm (1), a multiphase step-down transformer (21), a first static device (23) for controlling a multiphase rotating machine, said control device (23) having one multiphase input connected to the secondary of the multiphase transformer (22) and one multiphase output connected to a node (29) with electric linkages, one multiphase rotating machine (27) electrically connected to said node (29), a high-capacity inertia flywheel (28) mechanically coupled to said multiphase rotating machine (27) and output terminals (30) connected to said node (29). The high-power electric motor (5) is connected to the output terminals (30) by means of a second static device (7) for controlling an electric motor.

REFERENCES:
patent: 4292531 (1981-09-01), Williamson
patent: 4321478 (1982-03-01), Plunkett et al.
patent: 4338525 (1982-07-01), Kilgore
patent: 4629947 (1986-12-01), Hammerslag et al.
patent: 4642535 (1987-02-01), Hucker
patent: 4657117 (1987-04-01), Lauer
patent: 4837485 (1989-06-01), Meroth et al.
Missiles and Rockets, vol. 15, No. 9, Aug. 31, 1964, p. 33, Ziff--Daus Publishing Co., New York, U.S., "Ames Centrifuge To Be `Most Sophisticated`".

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