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    • 4. 发明公开
    • AN INTERNAL COMBUSTION ENGINE SYSTEM
    • EP4293208A1
    • 2023-12-20
    • EP22178670.0
    • 2022-06-13
    • VOLVO TRUCK CORPORATION
    • ANDERSSON, LennartRAHM, Fredrik
    • F01N5/00F02G5/02F01N3/029F01N3/20F01N3/021F01N3/08F01N3/00F01N3/02F01K23/02F02M25/022F01N3/031
    • The disclosure relates to an internal combustion engine, ICE, system (2) for a vehicle (1) comprising: an ICE (3) operable on a main fuel component containing hydrogen gas or hydrogen liquid, said ICE having at least one combustion chamber (7) for combusting said main fuel component; an exhaust gas aftertreatment system, EATS, (31) arranged in an exhaust gas circuit (34) downstream the ICE, said EATS having at least one NOx reduction device (32) and/or a particulate filter (33), said EATS further comprising an exhaust gas water recovery, EWR, system (10, 11, 12) arranged at least partly downstream the NOx reduction device in the exhaust gas circuit, said EWR system having at least a primary exhaust cooler (10) for cooling exhaust gases and a water separator (12) for separating water from the exhaust gases; a waste heat recovery, WHR, system (25, 26, 27) for providing a rankine cycle, said WHR system being arranged and configured to transport a working fluid, WF, (17) through the primary exhaust cooler (10) of the EWR system, thereby allowing cooling of the primary exhaust cooler; a low temperature coolant circuit (19) in fluid communication an exhaust condenser (11) of the EWR system; and a water management system (13) arranged in fluid communication with the water separator (12) of the EWR system, said water management system being arranged and configured to collect water from the EWR system and transport water in a liquid fluid circuit (18) to the at least one combustion chamber, thereby providing for a recycling of water from the exhaust gases to the ICE.