Supercritical working fluid circuit with a turbo pump and a start pump in series configuration
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United States of America Patent
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Sep 12, 2017
Grant Date -
Dec 3, 2015
app pub date -
Jul 16, 2015
filing date -
Aug 20, 2012
priority date (Note) -
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Abstract
Aspects of the invention provided herein include heat engine systems, methods for generating electricity, and methods for starting a turbo pump. In some configurations, the heat engine system contains a start pump and a turbo pump disposed in series along a working fluid circuit and configured to circulate a working fluid within the working fluid circuit. The start pump may have a pump portion coupled to a motor-driven portion and the turbo pump may have a pump portion coupled to a drive turbine. In one configuration, the pump portion of the start pump is fluidly coupled to the working fluid circuit downstream of and in series with the pump portion of the turbo pump. In another configuration, the pump portion of the start pump is fluidly coupled to the working fluid circuit upstream of and in series with the pump portion of the turbo pump.
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