How many types of common rail injection systems are there?

How many types of common rail injection systems are there? Correct Answer 2

There are basically two types of common rail injection systems which are by using single pump and using controlled pressure system. In case of single pump, it supplies high pressure fuel to header. In the controlled pressure system, it has a pump which maintains a set head pressure.

Related Questions

Which of the following types of injection is used in the Common rail fuel injection system?
Common rail injection system uses injection pressures of the order ___________
Statement (I): Air-blast injection in diesel engines could reduce engine efficiency. Statement (II): Air-blast injection in diesel engine is not instantaneous but happens when the piston moves outward with the injection valve remaining open for whatever reason.