SGMW- EGR VOLVE

Principle:

The Exhaust Gas Recirculation (E.G.R.) System used in most vehicles since 1972-
1973 is designed to reduce the emission of oxides of nitrogen (NOx). Later E.G.R.
systems also control driveability, octane rating and fuel economy.

The reduction of NOx is accomplished by lowering engine combustion temperature by
recirculating metered amounts of burned exhaust gases back through the intake
manifold where they are mixed with fresh air-fuel mixture.

Faster response and more control than conventional vacuum systems.

Principle:
The electrically actuated EGR system eliminates the need for an additional solenoid and vacuum lines
necessary for vacuum operated systems. The EGR device with position sensor provides feedback to the
engine computer so that precise flow control is possible in order to achieve desirable operating conditions
and have quick response in the dynamic mode.