Engine-driven generator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5376877
SERIAL NO

07897380

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An engine-driven generator includes an internal combustion engine, a permanent magnet alternator and an AC to AC converter. The output frequency and voltage of the permanent magnet alternator are largely dependent on engine speed and the alternator load. The AC to AC converter converts the speed-dependent alternating current developed by the alternator to another alternating current whose frequency and voltage are largely independent of engine speed. Voltage regulation is provided by varying the engine speed in accordance with the load current. Frequency regulation is provided by frequency dividing the alternator output by an integer divisor that varies in accordance with engine speed. Additional voltage regulation is provided by deleting selected cycles of the alternator output current as needed to maintain the RMS output voltage within predetermined limits.

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Patent Owner(s)

Patent OwnerAddress
GENERAC POWER SYSTEMS INCS45W29290 HWY 59 WAUKESHA WI 53189

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kastner, Mark Greenfield, WI 13 333
Kern, Robert Waukesha, WI 49 688
McLean, Graham Lymm, GB2 8 340
Ruehlow, Gerald Oconomowoc, WI 6 207
Wedel, Frank Lake Mills, WI 5 188
Wheeley, Michael Reading, GB 1 38

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