Flywheel battery system with active counter-rotating...

Details Flywheel battery system with active counter-rotating... Flywheel battery system with active counter-rotating...

H - Electricity

02

K

H02K 7/02 (2006.01) F16F 15/30 (2006.01) H02K 7/08 (2006.01) H02K 7/09 (2006.01) H02K 7/11 (2006.01) H02K 16/00 (2006.01) H02K 16/02 (2006.01) H02K 51/00 (2006.01)

Patent

CA 2320440

Flywheel battery systems having improved energy density are provided. Such systems preferably have an inner rotor (118) mounted coaxially and substantially cylindrically within an outer containment (120) so as to manage the net gyroscopic force generated by the flywheel system. The outer rotor (120) has a greater relative inertia as compared to said inner rotor (118) and therefore can be rotated at a relatively lower rotational velocity to balance the gyroscopic forces generated by the rotation of the inner rotor. The relative rotational velocities of the inner and outer rotor are maintained by a combined mechanical and magnetic drive/suspension system (130).

L'invention concerne un système de batterie par volant offrant une densité d'énergie améliorée. De préférence, ce type de système est équipé d'un rotor interne (118) monté coaxial et sensiblement cylindrique dans un rotor (120), de manière à maîtriser la force gyroscopique nette engendrée par le système de volant. Le rotor externe (120) a une inertie relative supérieure à celle du rotor interne (118), moyennant quoi ce rotor externe peut être mis en rotation à une vitesse de rotation relativement inférieure, de manière à équilibrer les forces gyroscopiques engendrées par la rotation du rotor interne. Les vitesses de rotation relatives des rotors interne et externe sont maintenues par un système combiné d'entraînement/de suspension mécanique et magnétique (130).

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