Flywheel system with parallel pumping arrangement
US6884039B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2002 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Dec 30, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2119
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A flywheel energy storage system, including a plurality of pumps arranged in parallel for simultaneously drawing-off and absorbing substantially all of the gases that evolve from a flywheel assembly during high-speed operation, is disclosed. The plurality of pumps includes at least one pump for pumping mainly water vapor; and, at least one pump for pumping mainly active gases. The at least one pump for pumping mainly water vapor plurality of pumps is disposed in a gas storage chamber that is separate from the main housing of the flywheel system. The at least one pump for pumping mainly active gases is disposed in a container external to the main housing and fluidly coupled to the gas storage chamber. A drag pump assists the plurality of pumps in the gas storage chamber by pumping the evolved gases from the main housing to the gas storage chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.