Systems and methods for waste heat recovery for internal combustion engines

A waste heat recovery system comprises an exhaust system, a thermal oil circuit, and a Rankine cycle circuit. The exhaust system is configured to provide exhaust gases. The thermal oil circuit comprises a first heat exchanger and a second heat exchanger. The first heat exchanger is positioned along...

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Bibliographische Detailangaben
1. Verfasser:	Ernst, Timothy C
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES COOLING OF INTERNAL-COMBUSTION ENGINES COOLING OF MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES HEATING HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINEPLANTS HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NOT OTHERWISE PROVIDED FOR STEAM ACCUMULATORS STEAM ENGINE PLANTS STEAM ENGINES USE OF WASTE HEAT OF COMBUSTION ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A waste heat recovery system comprises an exhaust system, a thermal oil circuit, and a Rankine cycle circuit. The exhaust system is configured to provide exhaust gases. The thermal oil circuit comprises a first heat exchanger and a second heat exchanger. The first heat exchanger is positioned along the exhaust system. The first heat exchanger receives heat from exhaust gases and separately receives thermal oil such that heat from exhaust gases is transferred to thermal oil within the first heat exchanger. The second heat exchanger receives thermal oil from the first heat exchanger and provides thermal oil to the first heat exchanger. The Rankine cycle circuit circulates working fluid through the second heat exchanger separate from thermal oil such that heat from thermal oil is transferred to working fluid within the second heat exchanger. An expander utilizes heat within working fluid to produce mechanical energy.