Patent ID: 11932367
Assignee: EVOA, LLC
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 6:
7. An axial flux propulsion system for an outboard electric boat comprising:
a traction system for generating torque, the traction system including at least a first axial flux electric traction motor/generator positioned adjacent to a second axial flux electric traction motor/generator, the first axial flux electric traction motor/generator and the second axial flux electric traction motor/generator being positioned on the transmission shaft and configured to operate in unison or independently of each other, as directed by the control system;
a transmission system for transmitting torque, the transmission system including at least a transmission shaft, a drive shaft/leg shaft, and a propeller;
an electrical power distribution system for storing and distributing electrical power, the electrical power distribution system including at least one battery;
a fluid management system, the fluid management system including:
a leg cooling/motor cooling subsystem including at least one leg inlet port, at least one fluid flow path, at least one intake circuit pump, at least one motor cooling heat exchanger, at least one motor cooling circulating pump, at least one motor cooling reservoir, and at least one leg outlet port, and
a battery cooling subsystem including at least one boat inlet port, at least one intake circuit pump, at least one battery cooling heat exchanger, at least one battery cooling circulating pump, at least one battery cooling reservoir, and at least one boat outlet port; and

a control system including at least a communication system and a throttle that together direct the operation of boat subsystems,
wherein the first axial flux electric traction motor/generator is positioned on the transmission shaft that is connected to the drive shaft/leg shaft, which drive shaft/leg is connected to the propeller,
wherein the control system directs the electrical power distribution system to increase, decrease, or suspend electrical power (including at least current, voltage, frequency, or phase) to the traction system, in response to signals from the throttle and communication system, and
wherein the boat subsystems include at least the mounting system, the traction system, the transmission system, the electrical power distribution system, and the control system.