Jennifer Rumsey, the Vice President of Engineering for Cummins Engine Business, explains how Cummins developed its clean diesel engine technology through the Tier 4 Interim and Tier 4 Final stages to develop near zero emissions products. This included adding new components like a common rail high pressure fuel system for particulate control, exhaust gas recirculation, a variable-geometry turbocharger, a particulate filter, and the Selective Catalytic Reduction. Learn more at [ Ссылка ]
