Patent ID: 8752392
Filing Date: 2014-06-17
Classification: F02C,F05D,Y02T

Abstract:
1. A device for starting a turbine engine fitted to a helicopter, the turbine engine having a compressor and a turbine, wherein the turbine engine becomes started when the compressor is driven to have a sufficient speed and the turbine generates an opposing torque which varies as a function of the speed of the compressor against the compressor being driven, the device comprising: a starter; and an electricity network including at least one source of electrical energy including at least one battery and/or an electrical energy generator member configured to power the starter with electrical energy in order for the starter to drive the compressor of the turbine engine during starting of the turbine engine; the source of electrical energy further including capacitors configured to provide the starter with an electrical energy boost in the form of a pulse to boost the electrical energy powering the starter from the battery and/or the generator member during the starting of the turbine engine; wherein a plurality of the capacitors are grouped together in at least one module; wherein, after the compressor has been initially driven by the starter with electrical energy from the battery and/or the generator member such that the speed of the compressor is increased toward the sufficient speed to a value corresponding to the opposing torque reaching a torque threshold, a controller for the starter is configured so the capacitors provide the starter with the electrical energy boost while the opposing torque is greater than the torque threshold such that the capacitors and the battery and/or the generator member and provide the starter with electrical energy while the opposing torque is greater than the torque threshold and the battery and/or the generator member provide the starter with electrical energy while the opposing torque is less than the torque threshold.