Spark ignited engine with a pre-chamber, a prechamber and an adapter insert for the engine
US11840954B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2020 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Feb 24, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A spark ignited engine is disclosed. The spark ignited engine includes a main combustion chamber and a cylinder head at least partially surrounding the main combustion chamber. A spark plug having a central axis is arranged in the cylinder head and an ignition end of the spark plug faces the main combustion engine. A pre-chamber with at least two nozzles is arranged in the main combustion chamber and connects the ignition end and the main combustion chamber via the at least two nozzles. A pre-chamber volume ratio corresponds to a ratio of a volume of the pre-chamber to a volume of the main combustion chamber at a top-dead-center and is between 1.9% and 3.1%. A nozzle factor corresponds to a ratio of a summed flowed-through area of the at least two nozzles to the volume of the pre-chamber and is between 0.085 l/cm and 1.15 l/cm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.