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Free piston variable-stroke linear-alternator generator

United States Patent

5,850,111
December 15, 1998
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A free-piston variable stroke linear-alternator AC power generator for a combustion engine. An alternator mechanism and oscillator system generates AC current. The oscillation system includes two oscillation devices each having a combustion cylinder and a flying turnbuckle. The flying turnbuckle moves in accordance with the oscillation device. The alternator system is a linear alternator coupled between the two oscillation devices by a slotted connecting rod.
Haaland; Carsten M. (Dadeville, AL)
Lockheed Martin Energy Research Corp. (Oak Ridge, TN)
08/ 876,435
June 16, 1997
This invention was made with Government support under contract DE-AC05-840R21400 awarded by the U.S. Department of Energy to Lockheed Martin Energy Systems, Inc. and the Government has certain rights in this invention.