Abstract
The GCI‑30 is a manufacturable, cost‑realistic jet‑ignition spark plug featuring a 0.25 cc vortex pre‑chamber, six adjustable louvers (20°–35°), and a steel Spider‑Web electrode plated with 25–50 µm silver.
It is designed as a drop‑in retrofit for 9.8–10.5:1 compression engines and provides stable lean‑burn ignition, improved flame‑kernel formation, and thermal survivability up to 850 °C for 5,000 cycles.
This disclosure includes complete fabrication instructions, geometry, materials, CFD requirements, test procedures, and expected performance targets so any engineering team can build and validate a prototype.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Caldwell, Michael Victor Mr., "GCI‑30 — Shop‑Realistic Vortex Jet‑Ignition Spark Plug", Technical Disclosure Commons, ()
https://www.tdcommons.org/dpubs_series/10014