Patent ID: 7687928
Filing Date: 2010-03-30
Classification: F01D,F02C,F02N,F05D,H02K,Y02T

Abstract:
1. An aircraft starting and generating system, comprising: a first starter/main machine assembly that includes a first exciter and a first main machine; a second starter/main machine assembly that includes a second exciter and a second main machine; a permanent magnet generator (PMG) that is connected to the first and second starter/main machine assemblies; a gear train provided between the first main machine and the PMG and between the second main machine and the PMG, the gear train providing a speed increasing function; a first inverter/converter/controller (ICC) that is connected to the first starter/main machine assembly and to the PMG; and a second ICC that is connected to the second starter/main machine assembly and to the PMG, wherein the first and second ICCs generate AC power to respectively drive the first and second starter/main machine assemblies in a start mode of the starting and generating system for starting a prime mover of the aircraft, and wherein the first and second ICCs convert AC power, respectively obtained from the PMG after the prime mover has been started, to DC power in a generate mode of the starting and generating system.