Man Nutzfahrzeuge Oesterreich Ag

Man Steyr Ag

Man Truck & Bus Osterreich Ag

Peter Kislinger

Gottfried Raab

Heidrun Klinger

Heinz Povolny

A method and a system for cooling an internal combustion engine having charge air feed, which has a first and a second cooling loop, of which the first cooling loop is operated at a higher temperature level than the second cooling loop, and in which the charge air feed has at least one intercooling unit which is thermally coupled to the second cooling loop, having a controllable coolant throughput. The system includes at least one shutdown element in the second cooling loop for throttling the coolant throughput in the second cooling loop to 0 (zero). Coolant throughput may be shut down during the operation of the internal combustion engine as a function of an operating parameter of a vehicle component.

Cooling system of an internal combustion engine having charge air feed

An internal combustion engine with a 2-stage charge loading includes a connection conduit with a supercharger intercooler provided between the compressors of the low pressure stage and high pressure stage. The supercharger intercooler is configured via a cooling unit in the charge air guiding connection conduit between the compressor of the ATL-low pressure stage and the compressor of the ATL-high pressure stage having a cooling medium flowing therethrough as well as by a specially configured section of the connection conduit. The connection conduit in this section forms with its wall the outer wall of the supercharger intercooler and delimits an air through-put volume sufficient to effect, via a cooling medium flowing through the cooling unit, an acceptable cooling of charge air flowing through the cooling unit that is built into the connection conduit.

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Linz, Austria

Peter Kislinger