That's traditional "external" egr. Many newer engines have an "internal" egr implementation, which just changes valve timing so that some amount of the combustion products are never evacuated from the cylinder in the first place. With cam phasing becoming commonplace, internal egr can be implemented without adding any additional parts, and is thus cheaper. So the "recirculation" part of egr is becoming more and more of a misnomer.
Personally I like internal egr because external egr systems have a tendency to clog in either the passageways or the solenoid controlled valve. EGR valve sticking is a common cause of cars stalling when slowing to a stop after cruising at medium-high speed. And even without the stalling egr is a common cause for check engine lights and smog test failures.
Personally I like internal egr because external egr systems have a tendency to clog in either the passageways or the solenoid controlled valve. EGR valve sticking is a common cause of cars stalling when slowing to a stop after cruising at medium-high speed. And even without the stalling egr is a common cause for check engine lights and smog test failures.