what is the fuction of EGR valve

Answer Posted / kkumar

EGR means Exhaust Gas Recirculation. The main function of
EGR is to control NOx emission from the engine.
At elevated temperature (during long run & full condition)
if due to some reasons engine gets heated up beyond certain
level... it produces NOx emission. In order to avoid this
pollution , we have to control the temperature rise inside
the cylinder. This can be achieved by mixing some amount of
exhaust gas with intake air. By doing this the temperature
inside the combustion chamber is reduced. And NOx is controlled.

Is This Answer Correct ?    10 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What are the modes of heat transfer?

611


what do you mean by volvo ?

1828


What is the impulse reaction turbine?

645


Explain the advantages of diesel engines?

705


What do you measure in the banana and mountain diagram?

1422






why constant pressure is consider for thermal diffusivity??

1589


What are the causes of emergency stop in a steam engine?

1542


which fit is this 177-S6?

1606


hall ticket copy

2225


What is bauschinger effect ?

660


why desuperheater tubes are bend in shape

2186


Hi friends, I'm final year mechanical engineering student.Next week i have a campus interview from mando india ltd company.I've prepared aps and reasoning questions well.any one of you guide me to prepare technical questions.kindly give some idea about overall question pattern.

1793


thermal engineering

7929


What are bevel gears and what are its types?

636


what is diameter of a suction pipe?

1568