Abstract: An oil/coolant module for a combustion engine, includes an oil filter, an oil/water heat exchanger, a water pump, and a coolant treatment system comprising a water filter and containing treatment additives for a coolant circuit.

Abstract: In a cooling circuit for an internal combustion engine of a motor vehicle including a pump device arranged upstream of the internal combustion engine, a cooler having an inlet side connected to a coolant outlet of the internal combustion engine and an outlet connected via a coolant line to the inlet side of the pump device, a cooler bypass line extending from the outlet side of the internal combustion engine to the inlet side of the pump device while bypassing the cooler and a switching valve arranged in the coolant line between the cooler and the pump device, a switching valve bypass duct is provided bypassing the switching valve and including a valve device which is open when the engine is shut down for reliable ventilation of the second coolant line during filling of the cooling circuit.

Abstract: In a cooling circuit for an internal combustion engine of a motor vehicle including a pump device arranged upstream of the internal combustion engine, a cooler having an inlet side connected to a coolant outlet of the internal combustion engine and an outlet connected via a coolant line to the inlet side of the pump device, a cooler bypass line extending from the outlet side of the internal combustion engine to the inlet side of the pump device while bypassing the cooler and a switching valve arranged in the coolant line between the cooler and the pump device, a switching valve bypass duct is provided bypassing the switching valve and including a valve device which is open when the engine is shut down for reliable ventilation of the second coolant line during filling of the cooling circuit.

Abstract: The invention relates to an oil/coolant module for a combustion engine, with an oil filter, an oil/water heat exchanger and a coolant pump called a water pump, whereby a coolant treatment system is provided that has a so-called water filter and which contains treatment additives that automatically enter the coolant circuit during assembly and/or during service of the coolant treatment system.

Abstract: In a cooling system for a motor vehicle engine having indirect charge air cooling, including a general cooling circuit for cooling a power-generating unit which comprises a coolant pump and a main coolant cooler, and an additional cooling circuit which branches off at an output point from the general cooling circuit and returns to the latter at an in-coupling point between the main coolant cooler and the coolant pump and contains an additional coolant cooler, means are provided for sensing the coolant temperature in an area where the coolant of the general cooling circuit and of the additional cooling circuit are mixed and also means for controlling the coolant flow as a function of the sensed coolant temperature.

Abstract: In a cooling system for a motor vehicle engine having indirect charge air cooling, including a general cooling circuit for cooling a power-generating unit which comprises a coolant pump and a main coolant cooler, and an additional cooling circuit which branches off at an output point from the general cooling circuit and returns to the latter at an in-coupling point between the main coolant cooler and the coolant pump and contains an additional coolant cooler, means are provided for sensing the coolant temperature in an area where the coolant of the general cooling circuit and of the additional cooling circuit are mixed and also means for controlling the coolant flow as a function of the sensed coolant temperature.