Nissan NEO D4

1
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HONDA CVCC Engine(1973)
3
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4
What is the Direct Injection ?
Wall Flow
Carburetor
Injector(Port Injection)

High Pressure Pump
spray
H.P. P/R
Injector
(Direct Injection)
spray

5
Mass Production DI Gasoline Engines
Swirl Control Valve
Swirl Control Valve
Toyota D4 (1996)
Mitsubishi GDI (1996)
Nissan NEO Di (1997)
6
Mitsubishi GDI
7
Mitsubishi GDI
8
What is stratified charge mixture combustion ?
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9
Coaxial LIF System for Mixture Visualization
Single Cylinder Transparent Engine
Band-Pass Filter
(280400nm)
Chromatic Mirror
UV Lens
I.I. CAMERA
Beam Forming Lens
Rotary
Encoder
Kr-F Excimer Laser
Mirror
10
Fuel Behavior in Combustion chamber
With Swirl Control Valve A
Without Swirl Control Valve
-50
Visualization Area
-45
Spark Plug
Fuel Injector
-40
Cylinder Head
-35
Cylinder
Piston at TDC
Block
-30
-25
Ne1400 rpm
-20
Injection End Timing 50 deg.BTDC
-15
-10
-5
deg.ATDC
11
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