Systems and methods for improving drivetrain efficiency for compressed gas energy storage
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United States of America Patent
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Aug 7, 2012
Grant Date -
Oct 20, 2011
app pub date -
May 17, 2011
filing date -
Mar 12, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In various embodiments, systems for providing a constant electrical output from a compressed gas energy storage and recovery system include a hydraulic-pneumatic energy storage and recovery system configured to provide a varying pressure profile at least at one outlet, a hydraulic motor-pump in fluid communication with the outlet, and a control system for enabling the constant electrical output by controlling at least one of pressure, piston position, power, flow rate, torque, RPM, current, voltage, frequency, or displacement per revolution.
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