This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Intake Port Fuel Transport and Emissions: The Influence of Injector Type and Fuel Composition
Annotation ability available
Sector:
Language:
English
Abstract
Experimental studies have been carried out on a spark ignition engine with port fuel injection to examine the influence of injector type and to contrast this with the effects of fuel composition. Intake port fuel transport characteristics and engine-out emissions for fully-warm and warm-up engine operating conditions have been examined as indicators of performance. The investigation has encompassed four types of injector and five gasoline blends. Fuel transport has been characterised using the τ and X parameters. The influence of injector type on these is of similar significance as that of changes in gasoline composition between summer and winter grades. The latter will limit the in-service accuracy of open-loop mixture control during transients. Injector type has a small effect on engine-out emissions under fully-warm operating conditions but has a significant influence on emissions during the early stages of warm-up. HC versus CO plots from warm-up data provide good discrimination of the effects of injector type, which again have similar levels of significance as the effects of changes in fuel composition.
Recommended Content
Authors
Citation
Shayler, P., Davies, M., Colechin, M., and Scarisbrick, A., "Intake Port Fuel Transport and Emissions: The Influence of Injector Type and Fuel Composition," SAE Technical Paper 961996, 1996, https://doi.org/10.4271/961996.Also In
References
- Martins J J G Finlay I C “Fuel Preparation in Port Injected Engines” SAE Paper No 920518
- Iwata M Furuhashi M Ujihashi M “Two Hole Injector Improves Transient Performance and Exhaust Emissions of 4-valve Engines” SAE Paper No 870125
- Harada K Shimizu R Kurita K Muramatsu M Ohashi M Makimura T “Development of Air-Assisted Injector System” SAE Paper No 920294
- Shayler P J Marshall W D P Turner J Ford K “Exhaust emissions: the influence of fuel injection system details” 1990
- Alkidas A C “The Effects of Fuel Preparation on Hydrocarbon Emissions of a S.I. Engine Operating Under Steady-State Conditions” SAE Paper No 941959
- Saikalis G Byers R Nogi T “Study on Air Assist Fuel Injector Atomization and Effects on Exhaust Emission Reduction” SAE Paper No 930323
- Oda K Hosono K Isoda T Aihara H Kojima K Shibata G “Effect of Gasoline Composition on Engine Performance” SAE Paper No 930375
- Chen G Vincent M T Gutermuth T R “The Behaviour of Multiphase Fuel-Flow in The Intake Port.” SAE Paper No 940445
- Curtis E W Aquino C F Trumpy D K Davis G C “A New Port and Cylinder Wall Wetting Model to Predict Transient Air/Fuel Excursions in a Port Fuel Injected Engine” SAE Paper No 961186
- Quader A A Sloane T M Sinkevitch R M Olson K L “Why Gasoline 90% Distillation Temperature Affects Emissions with Port Fuel Injection and Premixed Charge” SAE Paper No 912430
- Shayler P J Colechin M J F Scarisbrick A “Heat Transfer Measurements in the Intake Port of a Spark Ignition Engine” SAE Paper No. 960273
- Hires S D Overington M T “Transient Mixture Strength Excursions - An Investigation of their Causes and the Development of a Constant Mixture Strength Fuelling Strategy” SAE Paper No. 810495
- Aquino C F “Transient A/F Control Characteristics of the 5 litre Central Fuel Injection Engine” SAE Paper No. 810494
- Monden H Kataoka R “Practical Measuring Method of Deposited Fuel and Evaporated Fuel in the Induction System” SAE Paper No 905042
- Shayler P J Teo Y C Scarisbrick A “Fuel Transport Characteristics of Spark Ignition Engines for Transient Fuel Compensation” SAE Paper No. 950067
- Shayler P. J. Colechin M J F Scarisbrick A “Intra-Cycle Resolution of Heat Transfer to Fuel in the Intake Port of an S.I. Engine” SAE Paper No 961995