Waste heat recovery system for recapturing energy after engine aftertreatment systems

Patent · 17 June 2014

OSTI ID:1134314

Ernst, Timothy C.; Nelson, Christopher R.

The disclosure provides a waste heat recovery (WHR) system including a Rankine cycle (RC) subsystem for converting heat of exhaust gas from an internal combustion engine, and an internal combustion engine including the same. The WHR system includes an exhaust gas heat exchanger that is fluidly coupled downstream of an exhaust aftertreatment system and is adapted to transfer heat from the exhaust gas to a working fluid of the RC subsystem. An energy conversion device is fluidly coupled to the exhaust gas heat exchanger and is adapted to receive the vaporized working fluid and convert the energy of the transferred heat. The WHR system includes a control module adapted to control at least one parameter of the RC subsystem based on a detected aftertreatment event of a predetermined thermal management strategy of the aftertreatment system.

• Research Organization: Cummins Intellectual Properties, Inc., Minneapolis, MN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FC26-05NT42419
• Assignee: Cummins Intellectual Properties, Inc. (Minneapolis, MN)
• Patent Number(s): 8,752,378
• Application Number: 13/206,386
• OSTI ID: 1134314
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION