Center Direct Injection System (E-Cdis - wsm V3307-DI-T-E2B Workshop Manual

V3307-DI-T-E2B, WSM

[6] CENTER DIRECT INJECTION SYSTEM (E-CDIS)

The 07 series DI engine adopts the Center Direct
Injection System (E-CDIS), in which the injection nozzle
(3) is positioned upright at the center of the cylinder.
This system serves to inject fuel directly at the center
of the cylinder. By so doing, injected fuel and suction air
can be mixed more uniformly, leading to more stable,
higher combustion performance. In other words, cleaner
emission, higher power output, lower fuel consumption,
lower operating noise and higher start-up performance
have been achieved.
(1) Exhaust Valves
(2) Piston
The 07 series DI engine has two intake valves and
two exhaust valves per each cylinder.
The rocker arm (1) contacts a valve bridge arm (2)
instead of the valves stem tip.
The valve bridge arm (2) then contacts both intake
valves or both exhaust valves and causes two valves to
open simultaneously.
(1) Rocker Arm
M-6
ENGINE
(3) Injection Nozzle
(4) Intake Valves
W11094950
(2) Valve Bridge Arm
W1014724
KiSC issued 01, 2009 A