Patent ID: 6884039
Filing Date: 2005-04-26
Classification: F04B,F04D,H01J,H02K,Y02E,Y10T

Abstract:
1. A flywheel energy storage system, comprising: a sealed housing; a flywheel assembly disposed within the sealed housing; a gas storage chamber disposed within the sealed housing; a sealed container external to the sealed housing and fluidly coupled to the gas storage chamber; a first pump disposed within the sealed housing and operatively coupled to the gas storage chamber for pumping gases that evolve from the flywheel assembly into the gas storage chamber, the evolved gases including water vapor and active gases; a plurality of pumps for simultaneously pumping substantially all of the gases pumped into the gas storage chamber, wherein said plurality of pumps includes at least one pump for pumping mainly the water vapor and at least one pump for pumping mainly the active gases; wherein said at least one pump for pumping mainly the water vapor is disposed in the gas storage chamber; and wherein said at least one pump for pumping mainly the active gases is disposed in the external container.