This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A New Method to Analyze Fuel Behavior in a Spark Ignition Engine
Annotation ability available
Sector:
Language:
English
Abstract
In SI engines with port injection system, fuel behavior both in the intake port and in the cylinder has significant influence on the transient A/F characteristics and HC emissions [1]. Therefore, to improve the engine performance, it is very important to understand fuel behavior in the intake port and in the cylinder [2, 3].
This paper describes the following three unique methods to analyze fuel behavior in port injected SI engines and some test results.
- (1)Observation of fuel behavior in the intake port, using a transparent intake air tube and a strobe synchronized TV-photographic system.
- (2)Observation of fuel behavior in the cylinder, using a glass cylinder and fluorescent fuel.
- (3)Measurement of fuel wall wetting in the intake port and in the cylinder, using the engine with electronically controlled hydraulically driven in-take/exhaust valves.
With these three methods, it becomes possible to understand qualitatively and quantitatively the fuel behavior such as spray formation in the intake port, port wall wetting and cylinder wall wetting in firing operation.
Recommended Content
Authors
Citation
Saito, K., Sekiguchi, K., Imatake, N., Takeda, K. et al., "A New Method to Analyze Fuel Behavior in a Spark Ignition Engine," SAE Technical Paper 950044, 1995, https://doi.org/10.4271/950044.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
- Quadwe Ather A. “How Injector, Engine, and Fuel Variables Impact Smoke and Hydrocarbon Emissions With Port Fuel Injection” SAE Paper 890623 1989
- Ohyama Yoshishige Nogi Toshiharu Fujieda Mamoru “Study on Variable Injection Pattern Control System in a Spark Ignition Engine” SAE Paper 910080 1991
- Morishima Ryuji Asai Katsutoshi “Mixture Strength at Cranking Cycles of Gasoline Engine Starting” SAE Paper 920235 1992
- Saitou Kimitaka lgashira Toshihiko Nakada Masahiko “Analysis of oil Consumption by Observing Oil Behavior Around Piston Ring Using a glass Cylinder Engine” SAE Paper 892107 1989
- Nagaishi Hatsuo Miwa Hiromichi Kawamura Yoshihisa saitoh Masaaki “An Analysis of Wall Flow and Behavior of Fuel in Induction Systems of Gasoline Engines” SAE Paper 890837 1989
- Almkvist Goran Eriksson Soren “An analysis of Air to Fuel Ratio Response in a Multi Point Fuel Injected Engine Under Transient Conditions” SAE Paper 932753 1993
- Sugimoto Tomojiro Takeda Keiso Yoshizaki Hiroshi “Toyota Air-Mix Type Two-Hole Injector for 4-Valve Engines” SAE Paper 912351 1991
- Takeda Keiso Yaegashi Takehisa Saito Kimitaka Sekiguti Kiyonori Imatake Nobuo “Mixture Preparation and HC Emissions of a 4-Valve Engine with Port Injection During Cold Starting and Warm-Up” SAE Paper 950074 1995
- Nishiyama Ryoji Ohkubo Satoru Washino Shoichi “An Analysis of Controlled Factors Improving Transient A/F Control Characteristics” SAE Paper 890761 1989
- Bourke Mary Comben Evers Lawrence W. “Fuel Film Dynamics in the Intake Port of a Fuel Injected Engine” SAE Paper 940446 1994
- Tabaczynski Rodney J. Heywood John B. Keck James c. “Time-Resolved Measurements of Hydrocarbon Mass Flowrate in the Exhaust of a Spark-ignition Engine” SAE 720112 1972
- Namazian M. Hansen S. Lyford-Pike E. Sanchez-Barsse J. Heywood J. rife J. “Schlieren Visualization of the Flow and Density Fields in the Cylinder of a Spark-ignition Engine” SAE 800044 1988
- Kaplan Jordan A. Heywood John B. “Modeling the Spark Ignition Engine Warm-Up Process to Predict Component Temperatures and Hydrocarbon Emissions” SAE 910302 1991
- Hires S. D. Overington M. T. “Transient Mixture Strength Excursion- An Investigation of Their Causes and the Development of a Constant Mixture Strength Fueling Strategy” SAE 810495 1981
- Servati Hamid B. Herman Edward W. “Spray/Wall Interactions Simulation” SAE 890566 1989
- Yang Jialin Kaiser Edward W. Siegl Walter O. Anderson Richard W. “Effect of Port-Injection Timing and Fuel Droplet Size on Total and Speciated Exhaust Hydrocarbon Emissions” SAE 930711 1993
- Cheng Wai K. Hamrin Douglas Heywood John B. Hochgreb Simone Min Kyoungdoug Norris Michael “An Overview of Hydrocarbon Emissions Mechanisms in Spark-Ignition Engine” SAE 932708 1993