Mixture Preparation in a SI Engine with Port Fuel Injection During Starting and Warm-Up

1992 ◽  
Author(s):  
J. W. Fox ◽  
K. D. Min ◽  
W. K. Cheng ◽  
John B. Heywood
Keyword(s):  
Fuel Injection ◽  
Si Engine ◽  
Warm Up ◽  
Port Fuel Injection ◽  
Mixture Preparation

Mixture Preparation and HC Emissions of a 4-Valve Engine with Port Fuel Injection During Cold Starting and Warm-up

1995 ◽  
Author(s):  
Keiso Takeda ◽  
Takehisa Yaegashi ◽  
Kiyonori Sekiquchi ◽  
Kimitaka Saito ◽  
Nobuo Imatake
Keyword(s):  
Fuel Injection ◽  
Warm Up ◽  
Cold Starting ◽  
Port Fuel Injection ◽  
Mixture Preparation ◽  
Hc Emissions ◽  
Valve Engine

scholarly journals Performance and Emission Characteristics of Homogeneous Charge Compression Ignition Engine with Different Bio Diesel Fuels

2018 ◽  
Vol 7 (4.24) ◽  
pp. 157 ◽  
Author(s):  
P Moulali ◽  
T H Prasad ◽  
B D Prasad
Keyword(s):  
Homogeneous Charge Compression Ignition ◽  
Fuel Injection ◽  
Emission Characteristics ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Hcci Engine ◽  
Diesel Fuels ◽  
Port Fuel Injection ◽  
Mixture Preparation ◽  
Algae Oil

In this paper the emission characteristics and performance of various bio diesel fuels (Tyre pyrolysis oil (TPO), Micro algae oil and Pig animal fat oil) were experimented. A single cylinder, water cooled diesel engine was modified in to homogeneous charge compression ignition engine (HCCI) with adopted port fuel injection (PFI) technique. The effects of air fuel ratio, intake temperature, injection pressure and EGR rate exhaust emissions were explained in a broad manner. The analysis of the exhaust emissions are integrated to oxides of Nitrogen (NOx), Carbon Monoxide (CO), unburned hydro carbons (UHC), smoke and soot. The performance analysis was also included on specific fuel consumption and break thermal efficiency. The basic requirements for HCCI engine is the homogeneous mixture preparation of air and fuel. This mixture formation was done by adopting port fuel injection technique and external devices were also used for bio diesel vaporization and mixture preparation. The combustion processes were measured with different EGR system.  The experimental results of different bio diesel fuels with HCCI engine mode were recorded and evaluated. A small increase in CO and HC emissions were observed with increasing bio diesel content due to slow evaporation rate of bio diesel. A significant reduction in NOx emission was also observed with respect to difference in bio diesel blends. Micro algae oil was found more stable compared with other bio diesel fuels due to the property of fuel vaporization and low heat releasing.

scholarly journals Effects of CNG Injection Pressure on Performance, Emission and Combustion Characteristics of Multi-cylinder SI Engine

2019 ◽  
Vol 8 (3) ◽  
pp. 2383-2387
Keyword(s):  
Compression Ratio ◽  
Fuel Injection ◽  
Injection Pressure ◽  
Injection System ◽  
Combustion Analysis ◽  
Si Engine ◽  
Performance And Emission ◽  
Port Fuel Injection ◽  
Spark Timing ◽  
Fuel Injection Pressure

This Paper shows the effect of port fuel injection pressure of CNG in 3-cylinder SI Engine at Wide Open Throttle position using sequential port fuel injection system. All trials are performed on 4-stroke, 796 cc MPFI S.I engine at injection pressure of 2.0, 2.2, 2.4, 2.6, 2.8 bar for constant speed of 2500, 3000, 3500, 4000 & 4500 rpm. During the trial compression ratio is kept constant at 9.2 with Maximum Brake Torque (MBT) spark timing of 15oBTDC. Optimum torque is obtained for CNG at injection pressure of 2.6 bar and 3000 rpm. Gasoline trials are performed at same compression ratio for comparison with CNG at same injection pressure. Performance and emission characteristics with combustion analysis are performed at optimum injection pressure of 2.6 bar.

Optical Investigations of Soot Formation Mechanisms and Possible Countermeasures on a Turbocharged Port Fuel Injection SI Engine

2016 ◽  
Vol 9 (4) ◽  
pp. 2010-2021 ◽  
Author(s):  
Claudius Schueck ◽  
Thomas Koch ◽  
Wolfgang Samenfink ◽  
Erik Schuenemann ◽  
Stephan Tafel ◽  
...  
Keyword(s):  
Fuel Injection ◽  
Soot Formation ◽  
Formation Mechanisms ◽  
Si Engine ◽  
Port Fuel Injection
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