The Spray Characteristics of Automotive Port Fuel Injection-A Critical Reviews

1995 ◽  
Author(s):  
Fu-Quan Zhao ◽  
Ming-Chia Lai ◽  
David L. Harrington
Keyword(s):  
Fuel Injection ◽  
Spray Characteristics ◽  
Port Fuel Injection ◽  
Critical Reviews

scholarly journals Comprehensive Spray Characteristics of Water in Port Fuel Injection Injector

Energies ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 396 ◽  
Author(s):  
Park ◽  
Lee ◽  
Park
Keyword(s):  
Fuel Injection ◽  
Injection Pressure ◽  
High Viscosity ◽  
Spray Angle ◽  
Spray Characteristics ◽  
Spray Tip Penetration ◽  
Port Fuel Injection ◽  
Injection Quantity ◽  
Spray Droplets ◽  
Spray Visualization

The objective of this study was to compare the injection and spray characteristics of water with n-heptane using a port fuel injection (PFI) system. In this study, the injection pressure was changed to 0.3–0.9 Mpa and the energizing duration was changed to 0.5–4 ms. To investigate spray characteristics, the injection quantities of n-heptane and water were measured. Macroscopic spray characteristics were determined through spray visualization. The Sauter mean diameter (SMD) and velocity of spray droplets were measured with a phase Doppler anemometry (PDA) experiment. Spray tip penetration, spray angle, SMD of droplets, and spray droplet velocity were compared. As the injection pressure increased, the injection quantity and the droplets velocity increased. However, the spray tip penetration, SMD of the droplet, and the spray angle decreased. The increase in energizing duration led to an increase in the injection quantity without affecting other spray characteristics. The higher density of water also increased injection quantity, resulting in a decrease in spray tip penetration and increases of SMD and velocity of spray droplets due to high viscosity and surface tension of water.

Comparison between gasoline direct injection and compressed natural gas port fuel injection under maximum load condition

Energy ◽  
2020 ◽  
Vol 197 ◽  
pp. 117173 ◽  
Author(s):  
Jeongwoo Lee ◽  
Cheolwoong Park ◽  
Jongwon Bae ◽  
Yongrae Kim ◽  
Sunyoup Lee ◽  
...  
Keyword(s):  
Natural Gas ◽  
Fuel Injection ◽  
Direct Injection ◽  
Load Condition ◽  
Maximum Load ◽  
Gasoline Direct Injection ◽  
Compressed Natural Gas ◽  
Port Fuel Injection
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