This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Mixture Preparation and HC Emissions of a 4-Valve Engine with Port Fuel Injection During Cold Starting and Warm-up
Annotation ability available
Sector:
Language:
English
Abstract
In order to reduce tail-pipe hydrocarbon emissions from SI gasoline engines, rapid catalyst warm-up and improvement of catalyst conversion efficiency are important. There are many reports which have been published by manufacturers and research institutes on this issue. For further reduction of tail-pipe hydrocarbon emissions, it is necessary to reduce engine-out hydrocarbon emissions and to improve after treatment, during the time the catalyst is not activated.
This paper quantitatively analyzed the fuel amount of intake port and cylinder wall-wetting, burned fuel and engine-out hydrocarbon emissions, cycle by cycle in firing condition, utilizing a specially designed analytical engine.
The effect of mixture preparation and fuel properties for engine-out hydrocarbon emissions, during the cold engine start and warm-up period, were quantitatively clarified.
Recommended Content
Authors
Citation
Takeda, K., Yaegashi, T., Sekiquchi, K., Saito, K. et al., "Mixture Preparation and HC Emissions of a 4-Valve Engine with Port Fuel Injection During Cold Starting and Warm-up," SAE Technical Paper 950074, 1995, https://doi.org/10.4271/950074.Also In
Progress in Fuel Systems to Meet New Fuel Economy and Emissions Standards
Number: SP-1084; Published: 1995-02-01
Number: SP-1084; Published: 1995-02-01
References
- Kaplan Jordan A. Heywood John B. “Modeling the Spark Ignition Engine Warm-Up Process to Predict Component Temperatures and Hydrocarbon Emissions” SAE Paper 910302
- Morishima R. Asai K. “Mixture Strength at Cranking Cycles of Gasoline Engine Starting” SAE Paper 920235
- Fox J. W. Min K. D. Cheng W. K. Heywood J. B. “Mixture Preparation in a SI Engine with Port Fuel Injection During Starting and Warm-Up” SAE Paper 922170
- Quader A. A. “How Injector, Engine, and Fuel Variable Impact Smoke and Hydrocarbon Emissions with Port Fuel Injection” SAE Paper 890623
- Kashiwaya M. Kosuge T. Nakagawa K. Okamoto Y. “The Effect of Atomization of Fuel Injectors on Engine Performance” SAE Paper 900261
- Ohyama Y. Nogi T. Fujieda M. “Study on Variable Injection Pattern Control System in a Spark Ignition Engine” SAE Paper 910080
- Sugimoto T. Takeda K. Yoshizaki H. “Toyota Air-Mix Type Two-Hole Injector for 4-Valve Engines” SAE Paper 912351
- Harada K. Shimizu R. Kurita K. Muramatsu M. “Development of Air-Assisted Injector System” SAE Paper 920294
- Saito K. Sekiguchi K. Imatake N. Takeda K. Yaegashi T. “A New Method to Analyze Fuel Behavior in a Spark Ignition Engine” SAE Paper 950044