gas recirculation

In addition, a new exhaust gas recirculation system improved emissions control.

Most modern engines now need exhaust gas recirculation to meet emissions standards.

Emissions are claimed to be well below 10 parts per million even without exhaust gas recirculation.

Emissions regulation included the fitting of an exhaust gas recirculation system.

Redesign of a brick oven with exhaust gas recirculation control pollutants.

Since its introduction in 1989, this gas recirculation method has been used more and more by all major aluminum producers.

The system will also allow some exhaust gas recirculation in certain periods to further reduce exhaust pollutants.

Problem is the burners don't really exist and the exhaust gas recirculation for temperature moderation needs to be perfected.

The Tipo has a three-way catalytic converter and exhaust gas recirculation valve.

The use of exhaust gas recirculation and catalytic converters in motor vehicle engines have significantly reduced emissions.

In one study, complex engine controls and increased exhaust gas recirculation allowed a compression ratio of 19.5 with fuels ranging from neat ethanol to E50.

Two boilers have no control equipment but have flue gas recirculation to limit nitrogen oxide emission.

In spark ignition engines, both alcohols can run at a much higher exhaust gas recirculation rates and with higher compression ratios.

It also lacked an emissions control component called Exhaust gas recirculation that is required by law in North America and Europe.

Direct monitoring of hydrogen is possible using an on-line quantitative measurement technology based on a closed-loop gas recirculation method though a porous ceramic probe.

This is necessary for emission controls such as exhaust gas recirculation and catalytic converters that reduce smog and other atmospheric pollutants.

The engine must be run with a lowSAP oil because of the nature of the particulate filter and exhaust gas recirculation valve.

The engine also features cooled exhaust gas recirculation (cold area specification models only) to reduce pumping losses and reduce NO emissions.

Operating conditions are defined by these engine parameters: lambda, engine load, internal exhaust gas recirculation, engine speed, and spark advance.

The changes included the addition of an exhaust gas recirculation (EGR) system, and a variable geometry turbocharger system to improve torque.

Exhaust gas recirculation (EGR)

Increasingly stringent emission standards added EGR (exhaust gas recirculation) valves to engines, and accordingly horsepower figures continued to drop.

They have reduced their emissions by more than 50% by purchasing new motorcoaches outfitted with exhaust gas recirculation (EGR) engines.

It has an electronic injection pump, electronically-controlled, vacuum-actuated exhaust gas recirculation, and a special catalyst to control oxides of nitrogen (NOx).

An owner's handbook supplement for US Federal models indicates that the emissions control system used a catalytic converter, exhaust gas recirculation, and secondary air injection.