Temporal and Cyclic Fluctuation of Fuel Vapor Concentration in a Spark Ignition Engine

1991 ◽  
Author(s):  
Fu-Quan Zhao ◽  
Toshikazu Kadota ◽  
Tooru Takemoto
Keyword(s):  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Vapor Concentration ◽  
Fuel Vapor ◽  
Cyclic Fluctuation

Numerical Analysis of Fuel Vapor Concentration Fields in a Spark Ignition Engine

1991 ◽  
Author(s):  
Mitsuhiro Tsue ◽  
Yoshiya Yamashita ◽  
Hiroshi Yamasaki ◽  
Toshikazu Kadota
Keyword(s):  
Numerical Analysis ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Vapor Concentration ◽  
Fuel Vapor

Post-Combustion In-Cylinder Vaporization During Cranking and Startup in a Port-Fuel–Injected Spark Ignition Engine

2005 ◽  
Vol 128 (2) ◽  
pp. 397-402 ◽  
Author(s):  
Jim S. Cowart
Keyword(s):  
Combustion Chamber ◽  
Liquid Fuel ◽  
Combustion Process ◽  
Spark Ignition ◽  
Liquid Films ◽  
Spark Ignition Engine ◽  
Fuel Vapor ◽  
Intake Port ◽  
Warm Up ◽  
Flame Ionization

During port-fuel–injected (PFI) spark-ignition (SI) engine startup and warm-up fuel accounting continues to be a challenge. Excess fuel must be injected for a near stoichiometric combustion charge. The “extra” fuel that does not contribute to the combustion process may stay in the intake port or as liquid films on the combustion chamber walls. Some of this combustion chamber wall liquid fuel is transported to the engine’s oil sump and some of this liquid fuel escapes combustion and evolves during the expansion and exhaust strokes. Experiments were performed to investigate and quantify this emerging in-cylinder fuel vapor post-combustion cycle by cycle during engine startup. It is believed that this fuel vapor is evaporating from cylinder surfaces and emerging from cylinder crevices. A fast in-cylinder diagnostic, the fast flame ionization detector, was used to measure this behavior. Substantial post-combustion fuel vapor was measured during engine startup. The amount of post-combustion fuel vapor that develops relative to the in-cylinder precombustion fuel charge is on the order of one for cold starting (0 °C) and decreases to ∼13 for hot starting engine cycles. Fuel accounting suggests that the intake port puddle forms quickly, over the first few engine cranking cycles. Analysis suggests that sufficient charge temperature and crevice oxygen exists to at least partially oxidize the majority of this post-combustion fuel vapor such that engine out hydrocarbons are not excessive.

Fuel Vapor-Spray-Air Mixture Operation of a Spark-Ignition Engine

1973 ◽  
Vol 8 (1-2) ◽  
pp. 85-94 ◽  
Author(s):  
YUKIO MIZUTANI ◽  
SATOSHI MATSUSHITA
Keyword(s):  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Fuel Vapor

EFFECT OF AIR-FUEL RATIO ON SYNGAS COMBUSTION IN AN OPTICALLY ACCESSIBLE SPARK IGNITION ENGINE

2017 ◽  
Author(s):  
santiago daniel martinez boggio ◽  
Pedro Lacava ◽  
Maycon Silva ◽  
SIMONA MEROLA ◽  
Adrian Irimescu ◽  
...  
Keyword(s):  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Fuel Ratio ◽  
Syngas Combustion

EXPERIMENTAL ANALYSIS OF THE INFLUENCE OF LUBRICATING OIL AND FUEL ON THE VIBRATION LEVEL OF CRANKSHAFT AXIS SPARK IGNITION ENGINE

2019 ◽  
Author(s):  
Claudio Santana ◽  
Jose Eduardo Mautone Barros ◽  
Juan Carlos Horta Gutiérrez ◽  
Helder Alves de Almeida Junior ◽  
jorgimara braga
Keyword(s):  
Experimental Analysis ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Lubricating Oil ◽  
Vibration Level

EMISSIONS INVESTIGATION OF SYNTHETIC BIOGAS IN A SPARK IGNITION ENGINE

2019 ◽  
Author(s):  
Lucas Ribeiro da Costa ◽  
Pedro Lima de Aguiar ◽  
José Welbson Carneiro de Araújo ◽  
William Barcellos ◽  
Francisco Nivaldo Aguiar Freire ◽  
...  
Keyword(s):  
Spark Ignition ◽  
Spark Ignition Engine
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