초록 ▼

A helicopter transmission system is disclosed in which drive from three engines is transmitted to two output channels each of which is divided by dividing means to drive two output pinions meshed with a common combining gear rotationally fixed to a sustaining rotor drive shaft. Balancing means are p

A helicopter transmission system is disclosed in which drive from three engines is transmitted to two output channels each of which is divided by dividing means to drive two output pinions meshed with a common combining gear rotationally fixed to a sustaining rotor drive shaft. Balancing means are provided to balance the torque transmitted by the respective pairs of output pinions and, in the described embodiment, the balancing means comprise a plurality of meshing spur gears arranged with one of the spur gears drivingly connected to one of the engines and a further two of the spur gears are drivingly connected respectively to the two output channels. Conveniently, a further one of the spur gears provides a power take off to an anti torque rotor drive shaft.

대표청구항 ▼

A helicopter transmission system for operatively connecting three engines to a main sustaining rotor, and including two output channels connected respectively to two of the engines, dividing means dividing each output channel so as to drive two output pinions meshed with a common combining gear rota

A helicopter transmission system for operatively connecting three engines to a main sustaining rotor, and including two output channels connected respectively to two of the engines, dividing means dividing each output channel so as to drive two output pinions meshed with a common combining gear rotationally fixed to a sustaining rotor drive shaft, and a combining gear train providing an input for the third engine and serving to distribute power from all three engines to both output channels and to balance torque transmitted by the two output channels.