Engine apparatus with heat recovery system and relative heat recovery method
First Claim
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1. A turbocompound engine apparatus comprising:
- an internal combustion engine;
a first recuperation turbine (2, 2′
) positioned on the exhaust line (1) of the exhaust gases from said engine, the first recuperation turbine mechanically connected to said engine for providing mechanical power to said engine;
a heat recovery system comprising a closed circuit (6) comprising a working fluid, a heat exchanger (8) in thermal communication with the exhaust line downstream of said first recuperation turbine suitable to allow the transfer of heat from the exhaust gases to said working fluid, a secondary turbine (9) operated by said working fluid;
wherein said first recuperation turbine is downstream of a turbine of a turbocharger of the turbocompound engine;
wherein said secondary turbine is mechanically connected to said engine for providing mechanical power to said engine.
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Abstract
A turbocompound engine has an internal combustion engine with a first recuperation turbine positioned on an exhaust line of the engine. The first turbine provides mechanical power to the engine. Heat from an exhaust line of the first turbine is transferred to a heat recovery system. A second turbine is operated by the heat within the heat recovery system and provides mechanical power to the engine.
50 Citations
6 Claims
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1. A turbocompound engine apparatus comprising:
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an internal combustion engine; a first recuperation turbine (2, 2′
) positioned on the exhaust line (1) of the exhaust gases from said engine, the first recuperation turbine mechanically connected to said engine for providing mechanical power to said engine;a heat recovery system comprising a closed circuit (6) comprising a working fluid, a heat exchanger (8) in thermal communication with the exhaust line downstream of said first recuperation turbine suitable to allow the transfer of heat from the exhaust gases to said working fluid, a secondary turbine (9) operated by said working fluid; wherein said first recuperation turbine is downstream of a turbine of a turbocharger of the turbocompound engine; wherein said secondary turbine is mechanically connected to said engine for providing mechanical power to said engine. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification
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Current AssigneeFPT Motorenforschung AG (Iveco Group NV)
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Original AssigneeIveco Motorenforschung AG
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InventorsGstrein, Wolfgang, Ellensohn, Rudolf
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Primary Examiner(s)Trieu; Thai Ba
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Application NumberUS11/975,237Publication NumberTime in Patent Office1,328 DaysField of Search60618-619, 605/97US Class Current60/618CPC Class CodesF01N 5/02 the devices using heatF02B 41/10 in exhaust turbines use of ...Y02T 10/12 Improving ICE efficiencies
