Rankine Power System For Use With Exhaust Gas Aftertreatment System

A power system for converting waste heat from exhaust gases of an internal combustion engine to electrical energy, the power system comprising:

• an aftertreatment assembly comprising an exhaust conduit operable to receive exhaust gases from the internal combustion engine;
• an evaporator assembly positioned adjacent the aftertreatment assembly, the evaporator assembly comprising a first portion of a working fluid loop, the first portion of the working fluid loop in thermal communication with the exhaust conduit that extends from the aftertreatment assembly into the evaporator assembly;
• and
• a power pack positioned adjacent the aftertreatment assembly, the power pack comprising a tank, a condenser, a pump and an expander fluidly connected by a second portion of the working fluid loop, the second portion fluidly connected to the first portion of the working fluid loop, the power pack defining a cavity through which the exhaust conduit extends from the engine to the aftertreatment assembly.

A power system for converting waste heat from exhaust gases of an internal combustion engine to electrical energy, the power system comprising:

• an aftertreatment assembly comprising an exhaust conduit operable to receive exhaust gases from the internal combustion engine, the aftertreatment assembly extending in a longitudinal direction away from the engine;
• an evaporator assembly positioned adjacent the aftertreatment assembly, the evaporator assembly comprising a first portion of a working fluid loop, the first portion of the working fluid loop in thermal communication with the exhaust conduit that extends from the aftertreatment assembly into the evaporator assembly;
• and
• a power pack positioned adjacent the aftertreatment assembly, the power pack comprising a tank, a condenser, a pump and an expander fluidly connected by a second portion of the working fluid loop, the second portion fluidly connected to the first portion of the working fluid loop, at least a portion of the power pack overlapping a longitudinal side of the aftertreatment assembly.