The cooling water control apparatus of the disclosure includes: a cooling water circuit; a heat accumulator which is arranged in the cooling water circuit and stores high-temperature cooling water flowing out from an internal combustion engine; an on-off valve for opening/closing the cooling water circuit; a heater passage which is connected in parallel to the cooling water circuit; and a flow rate control valve which controls a flow rate of the cooling water inside the heater passage. The cooling water inside the heat accumulator is supplied to the internal combustion engine by closing the flow rate control valve and opening the on-off valve in order to promote warm-up at the start of the internal combustion engine, and thereafter, the on-off valve is closed, and an opening degree of the flow rate control valve is controlled to make the temperature of the internal combustion engine reach a specified target temperature.

A heat accumulation and dissipation device (1) for an internal combustion engine (2) includes, in a cooling circuit (3) for circulating cooling water used to cool the internal combustion engine (2), a heat accumulator (7) for accumulating the cooling water, and an exhaust heat recovery device (9) for recovering the heat of exhaust gas through the cooling water, wherein when the internal combustion engine (2) is started, heat is dissipated by sending the cooling water of the heat accumulator (7) to the internal combustion engine (2). The cooling circuit (3) includes a heat accumulation and dissipation circuit (8) configured to perform heat accumulation and dissipation while circulating the cooling water between the internal combustion engine (2) and the heat accumulator (7), and the heat accumulator (9) is arranged upstream of the heat accumulator (7) of the heat accumulation and dissipation circuit (8).

In one embodiment, there is provided a heat exchanger for equipment, having: at least one phase change material; and at least one heat exchange interface for heat exchange between the phase change material and a fluid flowing within, into and/or from a replaceable fluid container for the equipment, the replaceable fluid container having at least one fluid port adapted to couple to a fluid circulation system of the equipment when the replaceable container is coupled to a dock.

A thermal management system of a vehicle includes: a cooling circuit in which cooling water circulates; a heat accumulator storing the cooling water; a flow control valve adjusting a flow rate of the cooling water flowing to the heat accumulator; a radiator; a thermostatic valve adjusting the flow rate of the cooling water flowing to the radiator; a grille shutter adjusting amount of outside air introduced from a front grille into an engine room; a cooling water temperature sensor; a heat radiation control unit supplying the cooling water to the cooling circuit to warm up an engine when the engine is cold; and a heat storage control unit, by controlling opening degrees of the flow control valve and the grille shutter according to a cooling water temperature, supplying from the cooling circuit to the heat accumulator the cooling water whose temperature is raised by heat of the engine.

Methods and systems are provided for adjusting a flow of coolant through a coolant system including a rear axle heat exchanger. In one example, a method may include flowing coolant through the coolant system while an engine is not operating. In another example, a method may include increasing a flow of coolant to the rear axle heat exchanger while the engine is not operating when a rear axle oil temperature exceeds a threshold temperature.

Methods and systems are provided for a cooling arrangement. In one example, the coolant arrangement comprises a heat store configured to store and release heat in response to a temperature of coolant flowing therethrough. The cooling arrangement further comprises an intake air heat exchanger for heating intake air prior to mixing with exhaust gas to decrease condensate formation, in one example.

An engine and cabin thermal management system for use with a vehicle having an engine, a cabin heating system configured to thermally heat a cabin of the vehicle, a coolant system operably coupled to the engine and to the cabin heating system to thermally manage a temperature of the engine and a temperature of the cabin. The coolant system having one or more coolant thermal storage units fluidly coupled with a radiator and heater core of the coolant system forming a coolant loop. The system further having a control system configured to monitor and maintain at least a predetermined coolant temperature at the cabin heating system even during a coolant temperature decrease at the engine stops.

A temperature control system for an engine. The system includes a thermal storage expansion tank defining a thermally insulated interior volume for storing engine coolant. The system further includes a pump that pumps engine coolant that has exited the thermal storage expansion tank back into the thermally insulated interior volume of the thermal storage expansion tank and forces air out of the thermal storage expansion tank to store coolant in the thermally insulated interior volume when the engine is off.

A latent heat storage system includes at least one latent heat storage device which contains a storage medium with latent heat, at least one extraction circuit by means of which, in accordance with the intended purpose, heat can be extracted from the storage medium, and at least one regeneration circuit by means of which, in accordance with the intended purpose, heat can be supplied into the storage medium. The at least one latent heat storage device includes at least one extraction heat exchanger which is in contact with the storage medium and can be connected to the extraction circuit, and at least one regeneration arrangement within the storage medium, which can be connected to the regeneration circuit. A coupling device is provided, by which the at least one extraction heat exchanger can be at least temporarily coupled to the at least one regeneration arrangement for common heat extraction from the storage medium or for common heat supply into the storage medium. A corresponding operating method is also provided.

The heat storage apparatus of the present disclosure includes a casing, a heat storage material that is located in the casing, a stirrer that is located in the casing, that is in contact with the heat storage material, and that rotates to stir the heat storage material, and a projection that is in contact with the heat storage material, that projects from the stirrer, and that rotates with rotation of the stirrer. The projection is continuously in contact with an inner face of the casing while the stirrer rotates.