Simultaneous Measurement of Engine-Out and Tail Pipe Mass Emissions 790705

A unique and simple method to obtain simultaneous mass measurements of engine-out and tail pipe emissions was developed as part of the methylcyclopentadienyl manganese tricarbonyl (MMT) Field Test Program conducted by the Coordinating Research Council (1, 2, 3).* The method and associated equipment is called the “Mini CVS.” The data obtained from the Mini CVS provide a means of computing catalytic converter efficiencies without additional analytical instruments. This paper describes the system concept, associated equipment, and test data obtained to demonstrate the accuracy and repeatability of the Mini CVS system.


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