Patent ID: 9194285
Filing Date: 2015-11-24
Classification: B64C,B64D,F02B,Y02T,Y10S

Abstract:
1. A hybrid drive system for a helicopter, the system comprising: a first energy generating module comprising an internal combustion engine and a generator configured to be powered by the internal combustion engine to generate electrical energy; at least one electric motor for powering a main rotor of the helicopter; connecting means configured to supply the electrical energy from the generator to the at least one electric motor, a second electric motor for powering a tail rotor of the helicopter; a storage unit electrically coupled to the first energy generating module and configured for supplying at least one of the first electric motor and the second electric motor; and a tail rotor pivotally supported at a top and a bottom of the tail rotor to be rotatable around a vertical axis of the helicopter to such an extent that a lateral thrust component of the tail rotor is configured to offset a yawing moment caused by the main rotor.