H - Electricity – 02 – K
Patent
H - Electricity
02
K
335/1
H02K 41/00 (2006.01) B60L 13/00 (2006.01) B61B 13/08 (2006.01) H02K 41/025 (2006.01)
Patent
CA 2004194
ABSTRACT The linear motor supporting apparatuses are mounted to the front and rear portion of each bogie of a vehicle to maintain the small distance between an on-board coil and a ground stator, the on-board coil and the ground stator together constituting the linear-induction motor. The linear motor supporting apparatus incorporates a servo device which regulates the vertical position of the on-board coil according to the contour of the ground stator to keep the on-board-coil-to-ground-stator distance to a small predetermined value. The servo device consists of a valve body, a valve box, and a servo device body. The valve body is secured to a sensor member, which runs on and is kept in contact with the ground stator. The valve box is secured to the on-board coil. The servo device body is mounted through a spring to the bogie. The ground stator has some laying errors and there are variations in its height. When the sensor member during operation is lifted up due to height variations in the ground stator, the valve body moves up causing, through hydraulic pressure, the valve box to follow its upward motion. This in turn causes the on- board coil, which is integral with the valve box, to move up thus keeping the distance between the on-board coil and the ground stator constant.
Kobayashi Noboru
Uozumi Yukio
Kawasaki Jukogyo Kabushiki Kaisha
Robic
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