Emergency power source for vehicles - utilises energy stored in flywheel originating from oscillator derived supply and feeding motor or generator

摘要

An emergency or auxiliary power source, is particularly intended for vehicles which are raised off their running tracks, by magnetic repulsion. Energy is stored in a flywheel and can be released when the power is interrupted either momentarily or for a short period. Power picked up from a monophase overhead rail is converted by an oscillator working at 400 Hz into a three phase supply feeding a motor-compressor and auxiliary services and a reversible motor-generator. The motor-generator spins up the flywheel which acts as an energy source during supply interruptions to provide a three phase output.