1
Troy O McBride, Michael Neil Scott, Jeffrey Modderno, Benjamin R Bollinger: High-efficiency energy-conversion based on fluid expansion and compression. SustainX, Bingham McCutchen, August 14, 2012: US08240140 (16 worldwide citation)

In various embodiments, motor-pump efficiency is increased by limiting the fluid pressure communicated to the motor-pump to a range smaller than that communicated by other components of an energy storage and/or recovery system.


2
Troy O McBride, Michael Neil Scott, Jeffrey Modderno, Benjamin R Bollinger: High-efficiency energy-conversion based on fluid expansion and compression. January 12, 2012: US20120006013-A1

In various embodiments, motor-pump efficiency is increased by limiting the fluid pressure communicated to the motor-pump to a range smaller than that communicated by other components of an energy storage and/or recovery system.