COMMON RAIL INJECTION SYSTEM
It works on the principle that increased fuel-injection pressure produces finer droplets of fuel in the combustion chamber, which in turn results in better combustion. Instead of using individual injector pumps for each cylinder, the common rail system uses one central high-pressure pump (known as the rail). This leads to extremely fast, precise, electronically controlled injector valves.
A pre-injection introduces a small amount of fuel, followed by the main injection, and then follow-up injections if required. The pre-injection phase ensures that the combustion-chamber pressure increases evenly, which reduces engine noise. The follow-up injections burn any remain particulates and treat the exhaust gases.
a) High performance
b) Increased fuel efficiency.
c) Smooth Engine running.