A micro motor using electroconjugate fluids (ECFs) - (Proposition of stator electrode type (SE-type) micro ECF motors)

Some dielectric fluids such as dibutyl decanedioate generate jet flow betwe en a pair of electrodes. One of authors discovered electroconjugate fluid ( ECF hereafter), which is considered to be a kind of functional fluid. In th is study, a micro motor that utilizes ECF is proposed. In the proposed moto r, are pairs of electrodes located inside a cylindrical tube (stator) fille d with ECF. In the stator, rotational flow is induced by ECF jets. By extra cting the rotational flow power with a rotor, micro motors are easily reali zed. In this paper, the fabrication of micro ECF motors having all I.D. of phi3 mm, phi4 mm or phi8 mm is described. Basic characteristics such as rot ational velocity, load characteristics, output power and efficiency are exp erimentally examined. Also, mathematical models of the ECF motors are propo sed and verified with experimental data. Finally, miniaturization character istics are examined using the fabricated ECF motors.