US2013333381A1PendingUtilityA1

Internal-combustion engine associated witha rankine cycle closed loop and with a circuit for water injection into the engine intake system

43
Assignee: IFP Energies NouvellesPriority: Jun 18, 2012Filed: Jun 11, 2013Published: Dec 19, 2013
Est. expiryJun 18, 2032(~5.9 yrs left)· nominal 20-yr term from priority
Inventors:Guillaume Bourhis
Y02T10/12F01N 5/02F01K 23/10F01K 23/065F01N 2240/02F02M 25/022F02B 47/02F01K 21/02F02M 25/028F02G 5/02F01N 2240/22
43
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Claims

Abstract

The present invention is an internal-combustion engine, for a motor vehicle, comprising at least one cylinder ( 16 ) with a combustion chamber ( 18 ), an air intake ( 20 ) and a burnt gas exhaust ( 22 ). The engine comprises a heat exchanger ( 28 ) having a Rankine cycle closed loop ( 12 ) and a circuit ( 14 ) for injecting water into the engine intake system.

Claims

exact text as granted — not AI-modified
1 - 30 . (canceled) 
     
     
         31 . An internal-combustion engine, comprising at least one cylinder with a combustion chamber, an engine air intake and a burnt gas exhaust, including a heat exchanger shared by a Rankine cycle closed loop and a circuit for injecting water into the engine air intake. 
     
     
         32 . An internal-combustion engine as claimed in  claim 31 , wherein the shared heat exchanger is disposed on the burnt gas exhaust to absorb heat from burnt gas exhaust. 
     
     
         33 . An internal-combustion engine as claimed in  claim 31 , wherein the burnt gas exhaust comprises an exhaust manifold and an exhaust line. 
     
     
         34 . An internal-combustion engine as claimed in  claim 32 , wherein the burnt gas exhaust comprises an exhaust manifold and an exhaust line. 
     
     
         35 . An internal-combustion engine as claimed in  claim 31 , wherein the shared heat exchanger is a dual-mode exchanger with an evaporator for vaporizing the working fluid of the Rankine cycle loop and a condenser for converting water vapor in the burnt exhaust gas into water for water injection by the water injection circuit into the engine air intake. 
     
     
         36 . An internal-combustion engine as claimed in  claim 32 , wherein the shared heat exchanger is a dual-mode exchanger with an evaporator for vaporizing the working fluid of the Rankine cycle loop and a condenser for converting water vapor in the burnt exhaust gas into water for water injection by the water injection circuit into the engine air intake. 
     
     
         37 . An internal-combustion engine as claimed in  claim 33 , wherein the shared heat exchanger is a dual-mode exchanger with an evaporator for vaporizing the working fluid of the Rankine cycle loop and a condenser for converting water vapor in the burnt exhaust gas into water for water injection by the water injection circuit into the engine air intake. 
     
     
         38 . An internal-combustion engine as claimed in  claim 34 , wherein the shared heat exchanger is a dual-mode exchanger with an evaporator for vaporizing the working fluid of the Rankine cycle loop and a condenser for converting water vapor in the burnt exhaust gas into water for water injection by the water injection circuit into the engine air intake. 
     
     
         39 . An internal-combustion engine as claimed in  claim 31 , wherein the shared heat exchanger comprises an inlet and an outlet for the working fluid of the Rankine cycle loop and an inlet and an outlet for the burnt exhaust gas. 
     
     
         40 . An internal-combustion engine as claimed in  claim 32 , wherein the shared heat exchanger comprises an inlet and an outlet for the working fluid of the Rankine cycle loop and an inlet and an outlet for the burnt exhaust gas. 
     
     
         41 . An internal-combustion engine as claimed in  claim 33 , wherein the shared heat exchanger comprises an inlet and an outlet for the working fluid of the Rankine cycle loop and an inlet and an outlet for the burnt exhaust gas. 
     
     
         42 . An internal-combustion engine as claimed in  claim 34 , wherein the shared heat exchanger comprises an inlet and an outlet for the working fluid of the Rankine cycle loop and an inlet and an outlet for the burnt exhaust gas. 
     
     
         43 . An internal-combustion engine as claimed in  claim 35 , wherein the shared heat exchanger comprises an inlet and an outlet for the working fluid of the Rankine cycle loop and an inlet and an outlet for the burnt exhaust gas. 
     
     
         44 . An internal-combustion engine as claimed in  claim 36 , wherein the shared heat exchanger comprises an inlet and an outlet for the working fluid of the Rankine cycle loop and an inlet and an outlet for the burnt exhaust gas. 
     
     
         45 . An internal-combustion engine as claimed in  claim 37 , wherein the shared heat exchanger comprises an inlet and an outlet for the working fluid of the Rankine cycle loop and an inlet and an outlet for the burnt exhaust gas. 
     
     
         46 . An internal-combustion engine as claimed in  claim 38 , wherein the shared heat exchanger comprises an inlet and an outlet for the working fluid of the Rankine cycle loop and an inlet and an outlet for the burnt exhaust gas. 
     
     
         47 . An internal-combustion engine as claimed in  claim 39 , wherein the inlet for the working fluid of the shared heat exchanger is connected to a compressor and circulation pump of the Rankine cycle loop 
     
     
         48 . An internal-combustion engine as claimed in  claim 40 , wherein the inlet for the working fluid of the shared heat exchanger is connected to a compressor and circulation pump of the Rankine cycle loop 
     
     
         49 . An internal-combustion engine as claimed in  claim 41 , wherein the inlet for the working fluid of the shared heat exchanger is connected to a compressor and circulation pump of the Rankine cycle loop 
     
     
         50 . An internal-combustion engine as claimed in  claim 42 , wherein the inlet for the working fluid of the shared heat exchanger is connected to a compressor and circulation pump of the Rankine cycle loop 
     
     
         51 . An internal-combustion engine as claimed in  claim 43 , wherein the inlet for the working fluid of the shared heat exchanger is connected to a compressor and circulation pump of the Rankine cycle loop 
     
     
         52 . An internal-combustion engine as claimed in  claim 44 , wherein the inlet for the working fluid of the shared heat exchanger is connected to a compressor and circulation pump of the Rankine cycle loop 
     
     
         53 . An internal-combustion engine as claimed in  claim 45 , wherein the inlet for the working fluid of the shared heat exchanger is connected to a compressor and circulation pump of the Rankine cycle loop 
     
     
         54 . An internal-combustion engine as claimed in  claim 46 , wherein the inlet for the working fluid of the shared heat exchanger is connected to a compressor and circulation pump of the Rankine cycle loop/ 
     
     
         55 . An internal-combustion engine, comprising at least one cylinder with a combustion chamber, an engine air intake and a burnt gas exhaust, including a heat exchanger shared by a Rankine cycle closed loop and a circuit for injecting water into the engine air intake; and wherein
 the internal-combustion engine is part of a motor vehicle.

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