Abstract: A method to control a cooling circuit, with the cooling circuit comprising at least three evaporators, which are fluid connected to the cooling circuit in a parallel connection in individual paths, with each of the paths containing one shut-off valve, through which the flow of the refrigerant, which is circulating through the specific path, can be metered or cut off, where the shut-off valves can be activated or deactivated individually, with the individual evaporators being operative when the shut-off valve located within the specific path of the individual evaporator permits fluid flow, where a maximum of two of the at least three evaporators are operative simultaneously.

Abstract: A method to control a cooling circuit, with the cooling circuit comprising at least three evaporators, which are fluid connected to the cooling circuit in a parallel connection in individual paths, with each of the paths containing one shut-off valve, through which the flow of the refrigerant, which is circulating through the specific path, can be metered or cut off, where the shut-off valves can be activated or deactivated individually, with the individual evaporators being operative when the shut-off valve located within the specific path of the individual evaporator permits fluid flow, where a maximum of two of the at least three evaporators are operative simultaneously.

Abstract: A vehicle header tank of the type in which most or all of the header tank is metal and brazed concurrently with the rest of the core includes a simplified oil cooler structure integrated with the tank and brazed concurrently with the rest of the core. A section of tubing similar to the radiator coolant flow tubes passes into and out of the header tank through a pair of slots with a geometry similar to that in the regular slotted tank header plate that accommodates the coolant flow tubes. Consequently, the oil cooler tube can be installed in leak proof fashion inside the header tank concurrently with the main core braze operation.

Abstract: A fan shroud has side walls that wrap around the side edges of a down flow type radiator, providing both the mounting means for a condenser and side seals to direct air flow from the condenser through the radiator. The lack of direct connection between the radiator and condenser compensates for the lack of overlap between the condenser and radiator tanks, which is the usual means of interconnection. The minimization of contact between the shroud and radiator, which is secured only to the back of the radiator tanks with threaded fasteners, allows the same shroud and condenser to be packaged more easily with differing radiator designs.