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Engelhard announces an EGR patent

12 March 2002

In a news release issued yesterday, Engelhard Corporation announced it was granted a US patent titled “Low Pressure EGR System for Diesel Engines”. The patent covers an exhaust gas recirculation system targeting retrofit, heavy-duty diesel engine applications, as well as OEM markets. The system also incorporates particulate filters and, thus, is capable of simultaneous reduction of NOx and PM emissions.

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Key elements of the Engelhard’s EGR system are:

Source: Engelhard