A study on fuel spray of spark-ignited direct injection engine using laser image technology

1999 ◽  
Vol 13 (3) ◽  
pp. 286-293 ◽  
Author(s):  
Nae Hyun Lee ◽  
Jong Ho Park ◽  
Kyu Hoon Choi
Keyword(s):  
Direct Injection ◽  
Fuel Spray ◽  
Direct Injection Engine

Fuel Spray Simulation with Valve Motion of Injector for Gasoline Direct Injection Engine

2017 ◽  
Vol 2017 (0) ◽  
pp. G0500201
Author(s):  
Kazuki YOSHIMURA ◽  
Tomoyuki HOSAKA ◽  
Yoshihito YASUKAWA ◽  
Eiji ISHII ◽  
Kiyotaka OGURA
Keyword(s):  
Direct Injection ◽  
Gasoline Direct Injection ◽  
Fuel Spray ◽  
Direct Injection Engine ◽  
Gasoline Direct Injection Engine ◽  
Valve Motion

The Research of Lean Combustion Characteristic of Compound Injection System of Direct Injection Engine

2014 ◽  
Vol 532 ◽  
pp. 362-366 ◽  
Author(s):  
Jiang Feng Mou ◽  
Rui Qing Chen ◽  
Yi Wei Lu
Keyword(s):  
Gasoline Engine ◽  
Direct Injection ◽  
Injection System ◽  
Intake Manifold ◽  
Combustion Characteristic ◽  
Injection Timing ◽  
Mixed Gas ◽  
Lean Burn ◽  
Direct Injection Engine ◽  
Lean Combustion

This paper studies the lean burn limit characteristic of the compound injection system of the direct-injection gasoline engine. The low pressure nozzle on the intake manifold can achieve quality homogeneous lean mixture, and the direct injection in the cylinder can realized the dense mixture gas near the spark plug. By adjusting the two injection timing and injection quantity, and a strong intake tumble flow with special shaped combustion chamber, it can produces the reverse tumble to form different hierarchical levels of mixed gas in the cylinder. Experimental results show: the compound combustion system to the original direct-injection engine lean burn limit raise 1.8-2.5 AFR unit.

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