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Document Type and Number:
Japanese Patent JPH0516898
Kind Code:

PURPOSE: To make a liquid produce its torque in all direction by controlling a magnetic field in a tank and an electric current flowing into a fluid in an inner part of the tank, respectively.

CONSTITUTION: Three magnetic field generating coils 1, 2, 3 generate a magnetic field in a direction optimum to generate torque in a spherical insulating tank 5, and a lot of electrodes 4 are set up on this tank 5. In addition, a controller 6 controls an intensity of magnetic field and its direction as well as an impressed voltage to eachy electrode 4 and polarity according to the torque direction to be generated and the magnitude of torque. A liquid in the tank 5 receives force based on a Fleming's left-hand rule from the magnetic field impressed by these magnetic field generating coils 1, 1, 3 and the voltage to be impressed in a direction being directed by the electrode 4. Owing to this resultant of force, the liquid gets turning effort in the tank, and thereby it functions as a wheel actuator, and it rotates in a desired direction and speed.

Ichikawa, Kenji
Application Number:
Publication Date:
January 26, 1993
Filing Date:
July 10, 1991
Export Citation:
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International Classes:
B64G1/28; H02K44/04; (IPC1-7): B64G1/28; H02K44/04
Attorney, Agent or Firm:
内原 晋

Next Patent: JPH0516899