FLYWHEEL POWER STORAGE DEVICE

Japanese Patent JP3860005

B2

PROBLEM TO BE SOLVED: To provide a flywheel power storage device capable of safely making an emergency stop of the flywheel rotating at high speed.
SOLUTION: In the flywheel power storage device, a rotation shaft 14 of a flywheel 13 is supported by a bearing provided in a casing 11. By rotating the flywheel 13 at high speed in the casing 11, electrical energy is converted into kinetic energy to be stored. When required, the kinetic energy is reconverted into electrical energy to be taken out. The flywheel power storage device is provided with a vibration detection means 15 for detecting vibrations of the casing, a temperature detecting means 16 for detecting temperature of the bearing, and a container 19 in which a braking material 18 connected with the casing 11 through the medium of the valve body 17 is filled. When either of the vibration detecting means 15 or the temperature detection means 16 emits a signal indicating excess of the prescribed value, the valve element 17 is opened to lead the braking material 18 in the casing 11, therefore safely making an emergency stop.

Kiyoshi Kawaguchi
Hiroyuki Kondo
Hideyuki Matsumura
Takao Ichino

JP2001294384A

December 20, 2006

September 26, 2001

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Railway Technical Research Institute
Daido Metal Co., Ltd.
Shinko Electric Co., Ltd.

F16D57/00; H02J15/00; H02K7/02; (IPC1-7): F16D57/00; //H02J15/00; H02K7/02

JP61099737A
JP6191564A
JP5170088A
JP7103264A
JP5072627U
JP53031068A
JP8247183A

Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama

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