Faradyne Systems' PowerCoil integrates electromagnetic generation directly into the cylinder — eliminating the alternator and starter motor while increasing efficiency across every cycle.
For over a century, reciprocating piston engines have relied on separate, bolt-on alternators and starter motors — components that add mechanical complexity, parasitic losses, failure points, and weight with no structural integration into the engine's core working cycle.
Belt-driven alternators siphon 5-10% of crankshaft output at all times, reducing net power and fuel efficiency even when electrical demand is low.
Separate starter motors, solenoids, and ring gears add mass, introduce wear surfaces, and create independent failure modes outside the engine's core design.
Hybrid and range-extended architectures are constrained by the physical limits of externally coupled generators — a fundamental inefficiency that cannot be solved by incremental improvements.
PowerCoil is an electromagnetic linear generator that works in concert with — not in addition to — the engine's reciprocating motion.
A ferromagnetic assembly is attached to the existing piston. No changes are made to the piston geometry, crankshaft, or engine block.
A precision stator assembly is fitted around the cylinder exterior — a direct retrofit that works with standard engine architectures.
Piston reciprocation induces current directly in the stator coils, producing substantial electrical power. The alternator and starter motor are eliminated entirely — no belts, no ring gears, no additional moving parts.
PowerCoil addresses inefficiencies that are endemic to the current architecture — not edge cases solvable by tuning existing components.
Removes the belt-driven alternator and its parasitic mechanical load, recovering power that is currently consumed regardless of electrical demand.
The conventional starter motor, solenoid, and ring gear are removed entirely — not replaced with another unit. Fewer moving parts means fewer failure modes.
Designed to install into existing engine families without modifying the block, piston, or crankshaft — a critical advantage for fleet operators and OEM partnerships.
Eliminating the alternator and starter motor removes accessory drive hardware entirely, significantly reducing powertrain weight, part count, and wear items.
The linear output profile is directly compatible with battery charging architectures, making PowerCoil a strong candidate for hybrid and extended-range EV drivetrains.
The core PowerCoil mechanism is covered by a provisional patent, establishing a protected IP foundation for licensing, OEM co-development, and commercialization.
Any platform using a reciprocating piston engine as a primary or auxiliary power source is a candidate for PowerCoil integration — from heavy transport to stationary generation.
Long-haul diesel fleets represent one of the largest addressable markets. Alternator elimination and reduced parasitic losses translate directly to fuel savings at scale.
Range-extender architectures benefit from the direct linear generation profile of PowerCoil, with simpler integration than traditional rotary alternator-to-inverter chains.
Marine diesels and industrial off-highway equipment operate in environments where component reduction and reliability are critical — both directly addressed by PowerCoil.
Generator sets for data centers, hospitals, and critical infrastructure benefit from PowerCoil's ability to produce massive electrical output without the alternator or starter — reducing maintenance burden and points of failure.
Faradyne Systems was founded by an engineer who identified a fundamental inefficiency in how reciprocating engines generate and deliver electrical power — and spent years developing a mechanism to solve it from first principles.
The PowerCoil concept emerged from a conviction that integrating power generation directly into the working stroke of the engine — rather than bolting onto it — was the structurally correct approach. That conviction led to a novel arrangement of ferromagnetic mover and stator now covered by a provisional patent application.
Faradyne Systems is now seeking engineering partners, licensing relationships, and investment to carry PowerCoil from prototype validation through commercial application.
Whether you're an OEM engineer, investor, fleet operator, or licensing professional, Faradyne Systems welcomes substantive conversations about PowerCoil commercialization. Reach us directly at info@faradynesystems.com.