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CYR PIVOT-FIELD GENERATOR

Hackaday.io — Digikey Green Powered Challenge

Submitted: March 19, 2026

Author: Alan Cyr / Wolf13 · CYR Technologies · Chicago, IL

FINAL ARCHITECTURE — No further mechanism changes anticipated

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PROJECT OVERVIEW

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A cog-bypass mechanism for rotating permanent magnet generators that recovers

3-8% of output currently wasted overcoming magnetic alignment (cogging) torque.

Two variants documented: Individual Pivot Holder and Ring Axial Travel.

Core principle: extract at the phi offset (38.17° before stator pole dead

center) where peak EMF occurs naturally — not at dead center where cog force

peaks. The field does all the work. The cam is only the trigger. The groove

is the seatbelt.

This generator upgrade completes the CYR three-device zero-fuel grid:

  Device 1: CYR Tidal Pulse Tower (181.2 kW base → ~186-196 kW)

  Device 2: CYR Hourglass Gravity (178 kW base → ~183-185 kW)

  Device 3: CYR Pivot-Field Generator (the coupling that improves both)

FINAL GEOMETRY — ALL FIXED MAGNETS INSIDE

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All fixed positioning magnets are located INSIDE the rotating wheel —

between the hub and the active magnets. NO magnets on the outer housing

wall. The wheel assembly is entirely self-contained.

  + PUSH MAGNET (inside wheel, at phi offset angular position):

    North pole faces inner face of active magnet.

    N→N repulsion PUSHES active magnet OUTWARD toward stator.

    Result: minimum gap · maximum coupling · peak EMF captured.

  − PULL MAGNET (inside wheel, at dead center angular position):

    South pole faces inner face of active magnet.

    S←N attraction PULLS active magnet INWARD away from stator.

    Result: gap increases · F∝1/gap² · 75-90% cog eliminated.

The housing is only the stator. The entire mechanism is within the wheel.

VARIANT A — INDIVIDUAL PIVOT HOLDER

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Each active magnet pivots on a pin fixed to the rotating wheel.

Pin = hinge only. Carries no load in normal operation.

CAM-LATCH MECHANISM (Addendum 17):

  The cam does NOT drive the magnet. The cam trips a latch only.

  Latch has two stable positions: OUT lock (extended) and IN lock (retracted).

  Cam contact force = latch spring only (0.5-2N vs 100-400N magnet force).

  200-800× less cam wear than direct cam drive.

  SNAP-ACTION EMF: Latch holds magnet stationary (dΦ/dt = 0) until latch

  releases, then field snaps holder to new position instantly.

  Fast snap = maximum dΦ/dt = maximum EMF pulse.

  Estimated: +15-40% peak EMF. THE LATCH IS THE EMF AMPLIFIER.

SAFETY GROOVE:

  Cut inside wheel. Pin sits loosely — never touched normally.

  Catches pin ONLY on failure. Groove wear = inspect fixed magnets.

  Seatbelt · not steering wheel.

COG REDUCTION: F = k/gap² · gap doubled → 75% cog eliminated.

VARIANT B — RING AXIAL TRAVEL (BLDC OUTRUNNER)

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The BLDC outrunner topology (drone motors, PC fans, RC motors, e-bike hubs)

uses an outer rotating ring with magnets. This variant adds controlled axial

travel of the entire ring along the shaft.

SINUSOIDAL SHAFT GROOVE:

  A phi ratio sinusoidal groove is cut into the shaft surface.

  Period: 360°/P per pole pair (8 pole pairs = 8 waves per revolution).

  Ring pin rides in groove. As ring rotates, pin follows groove:

  Groove peak (phi offset): ring shifts INWARD → max axial overlap → peak EMF

  Groove trough (dead center): ring shifts OUTWARD → reduced overlap → cog reduced

  The groove wave is phi ratio asymmetric (not pure sine):

  Faster rise · peak at 38.17° before dead center · phi ratio fall.

  NOTE:...