Internal combustion engine system with heat recovery

An internal combustion engine system with heat recovery comprising

• an internal combustion engine with a waste heat passage;
• an electric motor;
• a heat recovery assembly comprising a working fluid circulation circuit with a working fluid, a first heat source which is adapted to be heated by the waste heat passage and adapted to heat the working fluid and an expander engine, which is operated by the heated working fluid;
• a splitting device, which is connected to the electric motor and is adapted to be connected to a drivetrain of a vehicle and which splitting device is further connected to the expander engine, so that the expander engine is enabled to drive the drivetrain and/or the electric motor;
• and
• at least a second heat source for providing heat to the heat recovery assembly, wherein at least one selected from a group of the heat recovery assembly and the second heat source is adapted to be operable independently from operation of the internal combustion engine and adapted to be operable when the internal combustion engine is shut off, wherein the waste heat passage is an exhaust gas system comprising an exhaust gas aftertreatment system for guiding at least part of an exhaust gas from the internal combustion engine to an environment, and wherein the second heat source is a heater for heating the exhaust gas in the exhaust gas system, wherein the second heat source is a heater for the exhaust gas aftertreatment system arranged in the exhaust gas system of the internal combustion engine.

An internal combustion engine system with heat recovery comprising

• an internal combustion engine with a waste heat passage;
• an electric motor;
• a heat recovery assembly comprising a working fluid circulation circuit with a working fluid, a first heat source which is adapted to be heated by the waste heat passage and adapted to heat the working fluid, and an expander engine, which is operated by the heated working fluid;
• a splitting device, which is connected to the electric motor and is adapted to be connected to a drivetrain of a vehicle and which splitting device is further connected to the expander engine, so that the expander engine is enabled to drive the drivetrain and/or the electric motor;
• and
• at least a second heat source for providing heat to the heat recovery assembly, wherein at least one selected from a group of the heat recovery assembly and the second heat source is adapted to be operable independently from operation of the internal combustion engine and adapted to be operable when the internal combustion engine is shut off, wherein the waste heat passage is an exhaust gas system comprising an exhaust gas aftertreatment system for guiding at least part of an exhaust gas from the internal combustion engine to an environment, and wherein the second heat source is a heater for heating the exhaust gas in the exhaust gas system, wherein the second heat source is a burner for burning fuel comprising a fuel inlet and an air inlet, and an exhaust gas outlet which is connected to the exhaust gas system of the internal combustion engine for providing hot exhaust gases to the exhaust gas system.