Spark ignition engine, pre-chamber, and method for cooling a pre-chamber
US11359537B1 · kind B1 · utility
2Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2021 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Jun 30, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01P2003/024
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A spark ignition engine includes: a pre-chamber (PC); a main chamber (MC); and a cylinder head coupled with a water jacket. The PC includes: a spark plug; and a PC body. The spark plug is surrounded by a jacket with thermal-conductive substance. The thermal-conductive substance is solid at room temperature and liquid at working temperature of the PC. At working temperature of the PC, the liquid thermal-conductive substance conducts heat from the spark plug to the water jacket. The PC body is coated with a layer of non-thermal-conductive substance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.