Mahle International Gmbh

Behr Gmbh Co. Kg

Annegret Srnik

Richard Bruemmer

Stefan Rogg

A cooling circuit including a combustion engine, a coolant cooler, a first thermostat, a first pump, a condenser, a second thermostat and a second pump, wherein a cooling agent can flow through the cooling circuit, wherein the combustion engine, first pump, coolant cooler and first thermostat are arranged in a first circuit, and the condenser, second thermostat and second pump are arranged in a second circuit, and wherein the first circuit and second circuit are in fluid communication with one another at at least one point.

Cooling circuit

The invention relates to a circuit arrangement (K) comprising a low-temperature circuit (NK) for cooling charge air () that is fed to a motor () in a motor vehicle equipped with a turbocharger. According to the invention, the charge air () is compressed in two stages in a first low-pressure turbocharger () and a second high-pressure turbocharger (). To cool the charge air () a first cooler () is provided downstream of the low-pressure turbocharger () and upstream of the high-pressure turbocharger () and a second cooler () is provided downstream of the high-pressure turbocharger () and upstream of the motor (). The invention also relates to a method for operating a circuit arrangement (K) of this type.

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Esslingen, Germany

Annegret Srnik