The Oil Ring  requires manual pumpin to start the cycle to then be regulated by increasing the resistance to the dynamos stator...and max speed limiter contains a max pressure pressure safety valve and vents the oil if run away effect occurs due to electronics failure... a speed limiter within the drive shaft assembly  . .The design then intended to heat side walks...also makes a great bicycle bike rack....if half way burried..

Oil Ring Generator

Geoengineering - Climate Change Mitigation

Design Desk Inc.