Shaftless RIM Powered Engines
The proposed shaftless electric engines for Drones uses the combined principles of RIM Driven Thruster and Dyson Bladeless fan. However, unlike the intake of Dyson fan, the intake of proposed engine will be different. Two different variants: one pure electric and another hybrid, are being planned.
Rim Driven Thruster
Electrically driven RIM thrusters using permanent magnets are already employed in the marine industry. Instead of a central hub or shaft for the transmission of torque, these thrusters use rim (outer ring) driven technique. They have better efficiency, lower noise and compact design compared to the conventional ones.
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Dyson Bladeless Fan
Dyson air multiplier is a fan with no visible blades. The air is forced to flow through an annular slit between an outer and inner tube. This causes an inducement that draws air behind the fan through the inner tube. At the same time, the air surrounding the outer tube also begin to flow causing entrainment. Through inducement and entrainment, the air multiplier increases air flow by several folds compared to a conventional pedestal fan.
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Very recently, Jetoptera, a Seattle-based propulsion system, drone, and aerial mobility startup announced that they are working on an innovative vertical takeoff and landing (VTOL) aircraft concept modelled on Dyson’s “bladeless fan” design. Honestly, ours will be using a different approach and any further disclosure will hamper our IP rights.
Video: Jetoptera J2000 Flying Car