High efficiency pneumatically driven electric power generator
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United States of America Patent
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Sep 30, 2003
Grant Date -
Apr 25, 2002
app pub date -
Jul 21, 1999
filing date -
Jul 21, 1999
priority date (Note) -
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Abstract
A pneumatically driven electric power generator includes a cylinder having one end connected to an air supply passage for receiving pressurized air and a piston having an associated magnetic moment. A portion of the piston is free to move into and out of the open end of the cylinder. An O-ring prevents airflow between the piston and the cylinder when a portion of the piston is located within the cylinder. A spring forces the piston from a position outside of the cylinder to a position inside the cylinder, so that the piston oscillates, moving into and out of the cylinder, driven by air supplied through the air supply passage. One or more electric coils are placed to enclose changing magnetic flux caused by the magnetic moment associated with the oscillating piston whereby an emf is generated in the coil(s) so that an external circuit connected to the coil(s) to complete a circuit through the coil(s) may receive electric power from the coil(s).
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