Exhaust gas cooler

For exhaust gas recirculation in internal combustion engines operating, for example, with low sulphur marine diesel oil, an exhaust gas cooler (260) with a cooling unit (272) may be applied that uses a liquid injection system (270) to maintain clean and/or clean a cooling surface of the cooling unit...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Rickert, Carsten, Dreves, Jan, Sturm, Michael, Schlemmer-Kelling, Udo, Krauss, Dietmar
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE ORHEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION APPARATUS COMBUSTION ENGINES COMBUSTION PROCESSES DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION ENGINE PLANTS IN GENERAL FLUES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACTWITHOUT CHEMICAL INTERACTION HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES STEAM ENGINES SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	For exhaust gas recirculation in internal combustion engines operating, for example, with low sulphur marine diesel oil, an exhaust gas cooler (260) with a cooling unit (272) may be applied that uses a liquid injection system (270) to maintain clean and/or clean a cooling surface of the cooling unit (272). The liquid injection system (270) may provide liquid into an exhaust gas passage (268) upstream of and or along a condensation starting region the cooling surface, thereby reducing the formation of films and deposits from particulate matter and condensing liquid of an evaporated liquid within the exhaust gas such as sulphuric acid and/or water, as those deposits could otherwise at least partially block the exhaust gas cooler (260).