Cummins Emission Solutions Inc.

James Houghtell

Srivardhan Chandrapati

Shu Zhang

Deepu Chandy

Mugdha Naik

Yongquan Chai

Xin Jin

A reductant delivery system is provided for delivery of reductant to an engine exhaust aftertreatment system that is heated during cold temperature conditions. A heat exchange fluid flows through a heat exchange circuit that provides a flow path from the heat source to the doser, from the doser to the reductant storage tank, and from the reductant storage tank to the heat source. A control valve controls the flow of the heat exchange fluid in the heat exchange circuit so that at least one heat exchange cycle includes a circulation period that increases the temperature of the reductant in the doser and storage tank and a termination period where circulation is stopped until reductant temperature in the doser reaches a lower limit.

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Columbus, IN, United States of America

James Houghtell