Patent ID: 7833071

Claim:
An amphibious all-terrain vehicle comprising: a body assembly, said body assembly further comprising a passenger compartment housing a pair of propulsion selection levers; a mechanical compartment housing a power source, a left hydrostatic pump, a right hydrostatic pump, a left hydraulic propeller motor, a right hydraulic propeller motor, a left hydraulic manifold assembly, and a right hydraulic manifold assembly; a left undercarriage assembly; said left undercarriage assembly being conjoined to a bottom of said body assembly along a left edge of said body assembly and housing a left plurality of hydraulic wheel motors connected in series such that said left plurality of wheel motors are external to the body assembly; a right undercarriage assembly; said right undercarriage assembly being conjoined to the bottom of said body assembly along a right edge of said body assembly and housing a right plurality of hydraulic wheel motors connected in series such that said right plurality of wheel motors are external to the body assembly, said right plurality of wheel motors being identical in number to the left plurality of wheel motors; said left and right hydrostatic pumps being rotatably connected to said power source and fluidly connected to said left and right hydraulic manifold assemblies respectively; whereby a variable flow of hydraulic fluid output from said left and right hydrostatic pumps is selectively directed through the left and right pluralities of wheel motors only, through the left and right pluralities of wheel motors and the left and right hydraulic propeller motors, through the left and right hydraulic propeller motors only, or through neither the left and right pluralities of wheel motors nor the left and right hydraulic propeller motors using the propulsion selection levers.