H ELECTRICITY
H02 GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K DYNAMO-ELECTRIC MACHINES
H02K41/00 Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
H02K41/02 Linear motors; Sectional motors
H02K41/035 DC motors; Unipolar motors
H02K41/0352 Unipolar motors
H02K41/0354 Lorentz force motors, e.g. voice coil motors
H02K41/0356 moving along a straight path