Arrangement with internal combustion engine and heat exchanger

An arrangement for a motor vehicle, comprising:

• an internal combustion engine in which, in operation, an exhaust gas is present,
• an exhaust system for discharging the exhaust gas, through which an exhaust gas path of the exhaust gas leads,
• a heat exchanger for cooling the exhaust gas, the heat exchanger including a channel system,
• the channel system including at least one exhaust gas channel, through which the exhaust gas path leads, and at least one coolant channel, through which a coolant path of a coolant leads, fluidically separate from the exhaust gas path and arranged in a heat-transferring manner with the exhaust gas path, such that, in operation, the exhaust gas exchanges heat with the coolant,
• a cooling gas outlet, opening into the exhaust gas path upstream of the channel system, for introducing a cooling gas into the exhaust gas path upstream of the channel system, and
• wherein the exhaust gas path upstream of the heat exchanger leads through a Venturi nozzle, and wherein the cooling gas outlet opens into the Venturi nozzle.

An arrangement for a motor vehicle, comprising:

• a heat exchanger for cooling an exhaust gas and including a channel system, wherein the channel system has at least one exhaust gas channel, through which an exhaust gas path leads, and at least one coolant channel, through which a coolant path of a coolant leads, fluidically separate from the exhaust gas path and arranged in a heat-transferring manner with the exhaust gas path, such that, in operation, the exhaust gas exchanges heat with the coolant,
• a cooling gas outlet, opening into the exhaust gas path upstream of the channel system, structured and arranged to introduce a cooling gas into the exhaust gas path upstream of the channel system;
• a fresh air channel fluidically connected to the cooling gas outlet such that fresh air flows via the fresh air channel through the cooling gas outlet into the exhaust gas path;
• and
• an exhaust gas return channel that connects an exhaust gas removal inlet arranged downstream of the channel system in the exhaust gas path fluidically with the cooling gas outlet, such that exhaust gas originating from the exhaust gas removal inlet in operation flows through the cooling gas outlet upstream of the channel system into the exhaust gas path.