Electric marine propulsion systems with drive trains, and associated systems and methods

Abstract

The present technology is directed generally to electric marine propulsion systems with drive trains, and associated systems and methods. In representative embodiments, the disclosed technology includes pre-assembled transmission cartridges, gear reduction planetary gears, and/or component support arrangements that can increase the life of the system and/or reduce manufacturing costs.

1 . An electric marine propulsion system, comprising
 an outboard motor lower unit having an aperture;   a stator fixedly positioned within the aperture and having a rotor opening;   a rotor cartridge removably attached to the outboard motor lower unit, the rotor cartridge including:
 a rotor carried by a drive shaft and positioned within the rotor opening of the stator; 
 an output shaft; and 
 a transmission coupled between the drive shaft and the output shaft, the transmission including:
 a transmission housing; 
 a sun gear carried by the drive shaft; 
 a ring gear carried by the output shaft; 
 a planetary gear carrier fixedly attached to the transmission housing; 
 a carrier bearing positioned between the planetary gear carrier and the output shaft to position the planetary gear carrier and the output shaft concentrically; and 
 a plurality of planetary gears carried by the planetary gear carrier on corresponding planetary gear shafts; 
 wherein individual planetary gear shafts are supported relative to the transmission housing on opposing sides of the corresponding planetary gears. 
 
   
     
     
         2 - 36 . (canceled)