established · computed
Excess oxygen from ambient air dilutent can raise NOx; countered with exhaust gas dilutent
Introducing ambient air as a dilutent can create excess oxygen (itself acting as a non-combustible dilutent), which may produce undesirable NOx; this is mitigated by substituting more exhaust gas rather than air, since a lower hydrogen burn rate reduces combustion temperature and NOx formation.
Source: US Patents — A Hydrogen Gas Fuel And Management System For An Internal Combustion Engine Utilizing Hydrogen Gas Fuel #5,293,857
Basis
- Confidence
- 0.90
- Recorded
- Published
- 19 Aug 2026
- Component
- gas-management
- Source Ref
- US Patents — A Hydrogen Gas Fuel And Management System For An Internal Combustion Engine Utilizing Hydrogen Gas Fuel #5,293,857
- Notebook Id
- 174
- Source Page Id
- 53
NOx exhaust-gas dilutent