Methods and systems are provided for a coolant system. In one example, a method may include diagnosing a condition of a pump of the coolant system based on a temperature change of coolant. The diagnostic may determine if the pump is stuck on or off.

An agricultural harvester includes an IC engine, a grain tank, and a fluid cooling system for at least one component onboard the agricultural harvester. The fluid cooling system has a cooling package positioned between the IC engine and the grain tank. The cooling package includes a housing, and a plurality of cooling units arranged in a side-to-side manner within the housing, transverse to a fore-aft direction of the harvester.

A cooling circuit for a vehicle includes a single cooler, a refrigeration machine, a first heat-generating device, a second heat-generating device, a coolant pump arrangement configured to pump a coolant, a valve arrangement, and an electronic control module. The first heat-generating device requires the coolant at a first coolant temperature level. The second het-generating device requires the coolant at a second coolant temperature level. The valve arrangement is configured to supply the coolant from the first and second heat-generating devices to the refrigeration machine and/or to the single cooler. The electronic control module is designed to control a temperature of the coolant at coolant inlets of the first and second heat-generating devices by varying flow rates of the coolant through the refrigeration machine and/or the single cooler.

An apparatus for handling fluid within an at least partially electrically driven vehicle, with a valve device including a valve housing. The valve housing includes at least three two radially arranged port openings and at least one axially arranged port opening for the inflow and/or outflow of fluid, and a valve body which is arranged inside the valve housing and is configured to be rotatable about an axial axis of rotation R. The valve body includes a first connecting channel of arcuate shape for connecting two radially arranged port openings and a second connecting channel of arcuate shape for connecting a radially arranged port opening with an axially arranged port opening. The at least two radially arranged port openings define a base plane B, which is configured orthogonally to the axial axis of rotation R, and the first arcuate connecting channel defines a first connecting channel plane V.

A coolant circuit for a drive device. It includes a first coolant sub-circuit and a second coolant sub-circuit, in each of which a device to be temperature-controlled is arranged and which are fluidically connected to one another via at least one connecting valve, wherein at least one coolant pump is provided in each of the two coolant sub-circuits, which is designed in at least one of the coolant sub-circuits as a fluid pump having variable delivery direction. The disclosure furthermore relates to a method for operating a coolant circuit for a drive device.

An engine assembly is provided with a split-cycle internal combustion engine having a compression section and an expansion section and with a cooling circuit for circulating a heat-exchange fluid; said fluid has a boiling temperature such that at least a fraction of the fluid changes phase from liquid to vapour flowing through the expansion section of the engine, when the latter operates in steady conditions; the circuit comprises a turbine arranged downstream of the engine so as to receive vapour and produce mechanical energy from the expansion of the vapour.

A coolant supply module includes a reservoir tank configured to store a coolant, a main body connected to the reservoir tank so that the coolant stored in the reservoir tank flows, at least one pump mounting portion formed in the main body so that at least one water pump is mounted, a valve mounting portion formed in the main body between the at least one pump mounting portion so that a valve device is mounted, and a controller mounted in the main body and electrically connected to the at least one water pump, wherein the main body includes a branch portion allowing a portion of a coolant introduced into one of the at least one pump mounting portion to flow into another pump mounting portion.

A fluidic command device of a thermal management assembly having a first and a second pump group is provided. The fluidic command device has four inlet and outlet ports, and an auxiliary duct connecting the pump groups, and is configurable in a first configuration, in which working fluid flows into the first inlet port and out of the first outlet port, flowing into the first pump group, the auxiliary duct and the second pump group, a second configuration, in which working fluid flows into the second inlet port and out of the second outlet port, flowing in the first and second pump groups, and a third configuration, in which working fluid flows into the third inlet port and out from the third outlet port, flowing into the first pump group, and into the fourth inlet port and out of the fourth outlet port, flowing into the second pump group.

A thermal management assembly includes a first pump group and a second pump group connected by an auxiliary duct, a first inlet and a second inlet respectively connected to the first and second pump groups, a first outlet, a second outlet and a third outlet, and a fluidic command device fluidically connected to the first and the second pump groups and to the auxiliary duct. The fluidic command device is configurable in a first configuration in which flow of working fluid is regulated through the first and second outlets, preventing flow through the third outlet and the auxiliary duct, a second configuration in which flow of working fluid is regulated through the third outlet, preventing flow through the auxiliary duct, and a third configuration in which flow of working fluid is regulated through the auxiliary duct and flow of working fluid exiting through the second outlet is also regulated.

A thermal management assembly includes a fluidic command device connected to a first and second pump group and having four inlet and outlet ports and an auxiliary duct connecting the pump groups. The fluidic command device is configurable in a first configuration, in which working fluid flows into the first inlet port and out of the first outlet port, flowing into the first pump group, the auxiliary duct and the second pump group, a second configuration, in which working fluid flows into the second inlet port and out of the second outlet port, flowing in the pump groups, preventing flow in the auxiliary duct, and a third configuration, in which working fluid flows into the third inlet port and out of the third outlet port, flowing into the first pump group, and into the fourth inlet port and out of the fourth outlet port, flowing into the second pump group.