Fuel Rail Pressure Relief
2006-01-0626
04/03/2006
- Event
- Content
- A major source of engine-off evaporative hydrocarbon emissions is fuel injector leakage. Methods and devices to relieve fuel rail pressure after key-off, and thus reduce leakage are introduced. Impact on fuel manifold re-pressurization is considered.The basic principles governing this behavior: fuel thermal expansion, fuel vapor pressure, and dissolved gasses in liquid are elaborated. Fuel pressure relief data is shown.
- Pages
- 13
- Citation
- Pursifull, R., "Fuel Rail Pressure Relief," SAE Technical Paper 2006-01-0626, 2006, https://doi.org/10.4271/2006-01-0626.