Hydrogen fueled spark ignition engine
US6779337B2 · kind B2 · utility
12Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Sep 20, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S123/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydrogen fueled reciprocating spark ignition engine includes a fuel system for providing gaseous hydrogen to the cylinders of the engine and a lean NOx trap coupled to the engine for treating the engine's exhaust. An EGR system provides recirculated exhaust gas to the engine, and a controller operates the fuel system and EGR system during periodic purging of the lean NOx trap such that the engine is operated fuel rich, with the mass of EGR approximating 40%-80% of the mass of air and fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.