Patent ID: 8808042
Filing Date: 2014-08-19
Classification: B60F

Abstract:
1. An amphibious vehicle drive system comprising: a vehicle hull having a pair of track drive assemblies and at least one water jet drive; at least one internal combustion engine mounted in said hull and having an output shaft therefrom; a marine transmission coupling said internal combustion engine output shaft to said water jet drive; an automatic transmission; a transfer case coupling said output shaft to said automatic transmission; a differential coupling said automatic transmission to a pair of track drive shafts, each track drive shaft being operatively coupled to one of said pair of track drive assemblies; a pair of clutches, each clutch located in one of said pair of track drive shafts for selectively clutching one or the other track drive shafts and coupled track assembly; and a planetary gear mounted in each track drive shaft for selectively changing the torque in each track drive shaft and track assembly; whereby said amphibious vehicle drive system is powered by said at least one internal combustion engine selectively driving said at least one water jet drive and the automatic transmission driving the pair of track assemblies.