Importance

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Abstract

A pressure energy storage device for the storage of kinetic energy of rotation in the form of potential energy of a compressed fluid and for converting the potential energy of the compressed fluid into kinetic energy of rotation. The pressure energy storage device includes a storage reservoir, a compressor driven by a rotating source to deliver pressurized fluid to the storage reservoir, and a primary fluid motor selectively operable to generate rotary motion by drawing off a portion of the pressurized fluid. The pressure energy storage device may be provided with an electric motor to drive the compressor, a generator driven by the primary fluid motor, a secondary fluid motor to drive the compressor by the exhaust fluid from the primary fluid motor, and an auxiliary pressurized fluid outlet, permitting the compressor to be driven by a rotating power source or an electrical power source and permitting the potential energy of the pressurized fluid to be used directly or to be converted to rotary motion or electrical current, as needed.

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First Claim