SEAL STRUCTURE IN POWER STORAGE APPARATUS

Japanese Patent JP2015080369

A

PROBLEM TO BE SOLVED: To prevent deterioration in cooling efficiency by securely blocking gas at a place where the rotation shaft of a fly wheel is journaled.SOLUTION: A power storage apparatus 1 is provided in which a fly wheel 5 under a cryogenic temperature and high vacuum is rotated to store electric power as kinetic energy. The power storage apparatus 1 includes a gas encapsulation mechanism 20 that journals a lower rotation shaft 4 and is provided between a vacuum vessel 8 for accommodating the fly wheel 5 and the lower rotation shaft 4. The gas encapsulation mechanism 20 includes: a rotary magnetic body 21 that rotates together with the fly wheel 5; a stationary member 22 that is fixed to the vacuum vessel 8 and has a gap 23 between the stationary member 22 and the rotary magnetic body 21; magnetic fluid 24 accommodated in the gap 23 between the rotary magnetic body 21 and the stationary member 22; and the rotary magnetic body 21 and a magnetic material 25 that keep the magnetic fluid 24 in the gap 23.

JPH11201146	ENERGY STORAGE DEVICE
JPS58218842	PUMPING GENERATING PLANT
JP7312968	ENERGY SYSTEM AND OPERATION METHOD THEREOF AND VIRTUAL POWER PLANT SYSTEM

ARAI YUKI
NAGASHIMA MASARU
YOSHIZAWA KEISUKE
OGATA MASABUMI
MIYAZAKI YOSHIKI
KUBO TETSUO
SHIBATA TOMOFUMI

JP2013217326A

April 23, 2015

October 18, 2013

Click for automatic bibliography generation  

RAILWAY TECHNICAL RES INST
EMAAJII KK

H02J15/00; F16C17/02; F16C32/04; F16J15/43

JP2008086095A	2008-04-10
JPS58131474A	1983-08-05
JPS5899558U	1983-07-06
JPH0227017U	1990-02-22
JPH10213146A	1998-08-11
JP2010249118A	2010-11-04
JP2012196099A	2012-10-11
JPH0431368U	1992-03-13
JPH06233479A	1994-08-19

Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Suzuki Mitsuyoshi
Yasuhiko Murayama

Previous Patent: STATOR OF ROTARY ELECTRIC MACHINE AND ROTARY ELECTRIC MACHINE WITH THE STATOR

Next Patent: POWER CONVERSION DEVICE