Operation Section
1
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53
(3) G2 Type
• To ensure high pressure, the G2 type has improved pressure strength, sealing performance and pressure wear re-
sistance. It also has improved high-speed operability, enabling higher-precision injection control and multi-injection.
< NOTE >
Multi-injection means that for the purpose of reducing exhaust gas emissions and noise, the main injection is accom-
plished with one to five injections of fuel without changing the injection quantity.
Q000865E
Connector
Solenoid Valve
Command Piston
Nozzle Spring
Pressure Pin
Nozzle Needle
Seat
Leak Passage
From Rail
To Fuel Tank
Example : Pattern with Five Injections
Time
Pre-Injection
Pilot Injection
After-Injection
Main Injection
Post-Injection
Injection Quantity
Q000866E
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