| 摘要 |
Power converting modulators used with internal combustion engines in driving loads. Such modulator includes an overdrive and/or underdrive mechanism based on a planetary gear assembly. The planetary gear assembly is modulated such that the overdrive or underdrive ratio varies continuously and smoothly with respect to speed of the engine, and approaches 1/1 at high engine speeds. Where the load is an alternator, the alternator is overdriven at relatively low engine speed, and provides generally constant rated power output of the alternator at all engine speeds. Where the load is a mechanical drive train, the load is modulated and thereby underdriven during engine acceleration, resulting in relatively faster engine speed acceleration, followed by demodulating the load, thereby smoothly applying full potential load to the engine while maintaining the higher engine speed.
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