Brayton cycle engine with high displacement rate and low vibration
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United States of America Patent
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Jun 9, 2020
Grant Date -
Jun 11, 2015
app pub date -
Jul 26, 2012
filing date -
Jul 26, 2012
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Abstract
To provide refrigeration below 200 K, a Brayton cycle engine contains a light reciprocating piston. The refrigerator includes a compressor, a gas-balanced reciprocating engine having a cold rotary valve, a counterflow heat exchanger, a gas storage volume with valves that can adjust system pressures, a variable speed engine and a control system that controls gas pressure, engine speed, and the speed of the piston. The engine is connected to a load such as a cryopanel, for pumping water vapor, through insulated transfer lines.
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