Electrical power supply system
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United States of America Patent
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-
Mar 2, 2010
Grant Date -
Sep 1, 2005
app pub date -
Mar 8, 2005
filing date -
Dec 7, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A system for generating back-up electrical power. The system includes a vessel adapted to contain a volume of compressed gas and a valve to release gas from the vessel at a predetermined pressure. A scroll expander is adapted to receive and pass the released gas. A rotary member is rotated by the flow of the released gas passed by the expander. An electrical generator is drivingly connected to the rotatable member of the expander to generate a supply of electrical power. A power conditioning unit has at least one capacitor to store electrical energy to provide a back-up electrical supply for a brief period until the scroll expander and generator can produce the required supply of electrical power.
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