Axial piston machine
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United States of America Patent
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Aug 2, 2011
Grant Date -
N/A
app pub date -
Sep 21, 2006
filing date -
Sep 21, 2006
priority date (Note) -
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Abstract
A pressure pump in a primary liquid flow is combined with a pressure exchanger for energy recovery from a secondary liquid flow. A motor-driven rotor portion, including two (primary and secondary) rotatable drum-type cylinder assemblies, is disposed between end blocks configured with input/output ports and cavities forming sliding synchronous reversing valves. Interconnected piston assemblies, including at least one primary piston and one secondary piston, are reciprocated axially by a central angled swash-plate in a progressive sequential manner by rotation of the rotor portion. The combination machine can be optimized for beneficial deployment in a reverse osmosis seawater desalination system to provide unusual simplicity, high efficiency energy recovery from the brine discharge flow and low overall operating cost.
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