Provided is a control device for an internal combustion engine that includes: a water-cooled cooler (intercooler) arranged at at least one of a portion of an intake air passage located on the upstream side of an intake port and an EGR passage; and a water pump configured to supply a cooling water with the cooler. The control device is configured: to execute a water supply operation that supplies the cooling water with the cooler by actuating the water pump when its execution condition which includes a requirement that a cooler temperature is higher than a cooling water temperature is met during stop of the internal combustion engine; and not to execute the water supply operation when the cooler temperature is lower than or equal to the cooling water temperature during stop of the internal combustion engine.

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.

A cooling device is employed in a vehicle including an internal combustion engine provided with a forced-induction device and an intercooler. The cooling device includes a circulation circuit configured to circulate coolant supplied to the intercooler, an electric pump configured to operate to circulate the coolant in the circulation circuit, and processing circuitry configured to control a discharge amount of the coolant of the pump. The processing circuitry is configured to execute a control amount deriving process of deriving a control amount of the pump based on a requested flow rate and a coolant temperature, and an operation process of causing the pump to operate based on the control amount when the requested flow rate is larger than 0.

An intercooler is a two-stage water-cooled intercooler having a first core and a second core. A condenser for an air conditioner includes a water-cooled condenser and an air-cooled condenser. A drive system electrical component such as an inverter, the second core, and the water-cooled condenser are cooled by a second cooling water circuit including a sub-radiator. Cooling is carried out by the second cooling water circuit including the sub-radiator. The sub-radiator and the air-cooled condenser are located in front of a main radiator.

In a cooling apparatus including a high-temperature-side radiator in a high-temperature-side cooling circuit supplying a high-temperature coolant to a cylinder head, a low-temperature-side radiator in a low-temperature-side cooling circuit supplying a low-temperature coolant to an intercooler, and an electronic control unit, the high-temperature-side cooling circuit includes a first coolant passage where the high-temperature coolant flows around an exhaust port, a second coolant passage where the high-temperature coolant flows through the cylinder head without flowing around the exhaust port, and a flow rate adjustment valve adjusting a flow rate of the high-temperature coolant flowing through the first coolant passage. The electronic control unit executes a response improvement process for controlling the flow rate adjustment valve to reduce the flow rate of the high-temperature coolant flowing through the first coolant passage, and for controlling the low-temperature-side pump to increase a flow rate of the low-temperature coolant circulating through the low-temperature-side cooling circuit.

Provided is a technique for improving the cooling efficiency of a vehicle heat exchange system configured to cool a cooling liquid discharged from each of a plurality of heat sources. The vehicle heat exchange system comprises a high-temperature side radiator unit and a low-temperature side radiator unit, the high-temperature side radiator including: a first high-temperature side radiator that faces a first fan and is connected to a high-temperature side discharge pipe; a second high-temperature side radiator that faces a second fan and is connected to a high-temperature side supply pipe; and a high-temperature side connection pipe for supplying the cooling liquid from the first high-temperature side radiator to the second high-temperature side radiator, and the low-temperature side radiator unit including: a first low-temperature side radiator that is arranged to face the second high-temperature side radiator on the upstream side of the cooling air flow, and is connected to a low-temperature side discharge pipe; a second low-temperature side radiator that is arranged to face the first high-temperature side radiator on the upstream side of the cooling air flow, and is connected to a low-temperature side supply pipe; and a low-temperature side connection pipe for supplying the cooling liquid from the first low-temperature side radiator to the second low-temperature side radiator.

An apparatus for cooling a high heat-generating vehicle component includes an air compressor assembly operable in a heat-generating mode, in which the air compressor assembly has a relatively low capability to absorb heat energy from a coolant that has passed through a high heat-generating vehicle component. The coolant may be passed through a heat exchanger submerged in an oil reservoir of the air compressor assembly to facilitate the heat exchange. The air compressor assembly can also be operated in a non-heat-generating mode, in which the air compressor assembly has a relatively higher capability to absorb heat energy from the coolant that has passed through the high heat-generating vehicle component.

In a cooling apparatus including a high-temperature-side radiator in a high-temperature-side cooling circuit supplying a high-temperature coolant to a cylinder head, a low-temperature-side radiator in a low-temperature-side cooling circuit supplying a low-temperature coolant to an intercooler, and an electronic control unit, the high-temperature-side cooling circuit includes a first coolant passage where the high-temperature coolant flows around an exhaust port, a second coolant passage where the high-temperature coolant flows through the cylinder head without flowing around the exhaust port, and a flow rate adjustment valve adjusting a flow rate of the high-temperature coolant flowing through the first coolant passage. The electronic control unit executes a response improvement process for controlling the flow rate adjustment valve to reduce the flow rate of the high-temperature coolant flowing through the first coolant passage, and for controlling the low-temperature-side pump to increase a flow rate of the low-temperature coolant circulating through the low-temperature-side cooling circuit.

Refrigeration cycle intercooler with dual coil evaporator is a component in a refrigeration cycle that is installed in a vehicle with an internal combustion engine or motor. The refrigeration cycle operates by continuously cycling a refrigerant through a closed loop where refrigerant passes through an inner coil evaporator and an outer coil evaporator where the refrigerant changes from liquid to gas, thereby providing a cooling effect. During operation, fresh air or outside air continuously passes by the inner coil evaporator and the outer coil evaporator and then continues into the internal combustion engine or motor air intake. The inner coil evaporator and the outer coil evaporator function to cool and dry the intake air for the internal combustion engine or motor. The inner coil evaporator and an outer coil evaporator are specially designed to provide substantially more cooling and drying than any other intercooler design.

A common cooling system and method for multiple generators are disclosed. In certain embodiments, a system comprises a power generation unit comprising a plurality of generators, wherein the power generation unit provides power to well stimulation equipment, and a common cooling unit positioned remote from the power generation unit, wherein cooling fluid from the common cooling unit is provided to each generator of the plurality of generators in the power generation unit.