Automotive

A Burst of Magnetic Energy Could Revolutionize Combustion Engine Design

05 July 2018

Flywheels are used in many combustion engines to overcome friction in energy expenditure. As these components are heavy and can reduce acceleration due to the extra inertia, a solution engineered by RK Transportation is to add permanent magnets to the rotor assembly, enabling bursts of perfectly timed energy to the engine by attracting and repelling the magnets from stationary coils.

The inclusion of a lightweight magnetic plate has the potential to add extra torque and reduce inertia as well as fuel consumption.

The design introduces a burst of energy to the engine before it has to compress the air/fuel mixture. This energy is brought in at a time when the piston(s) are either at top dead center or bottom dead center when piston ring-to-cylinder wall friction subsides. A plate embedded with permanent magnets becomes a rotor assembly similar to a brushless DC motor. The magnets line up with coils that when powered up can either repel or attract the magnets.

This burst of energy can be modified by the number of coils that are energized, giving the engine great acceleration at first, and then aiding it at cruising speed. At initial acceleration, all of the coils would be energized to give maximum torque then groups of coils would drop out as the rpm’s increase. These extra coils may be used to charge capacitors to aid this device. Eventually, the forward gears in the transmission assembly could be eliminated, saving more energy.

Energy bursts would be applied with the piston at the top and bottom dead centers of its stroke, so as to hit it at the points of minimal friction. Source: RK TransportationEnergy bursts would be applied with the piston at the top and bottom dead centers of its stroke, so as to hit it at the points of minimal friction. Source: RK Transportation

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Discussion – 3 comments

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Re: A Burst of Magnetic Energy Could Revolutionize Combustion Engine Design
#1
2018-Jul-05 10:52 AM

Sounds like a "timed" stepper-motor embedded as flywheel. Didn't Henry Ford already use that on his first cars?

Re: A Burst of Magnetic Energy Could Revolutionize Combustion Engine Design
#2
2018-Jul-05 12:59 PM

Sounds like they're using a magneto and reversing the current at intervals....

Re: A Burst of Magnetic Energy Could Revolutionize Combustion Engine Design
#3
2018-Jul-06 3:24 AM

I can see that by reducing the mass the inertia of the system could be reduced and that could lead to higher acceleration but I fail to see where the energy saving would come from. The coils will require energy to overcome the system resistance which is normally done by the energy stored in the inertia of the flywheel.

By changing the mass of the flywheel it probably would not make any change in the energy consumption of the system as the resisting load of the compression in the cylinders remain the same. The friction will not change much if any as the mass saved on the flywheel does not contribute much to the friction load of the system.

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