A passive cooling system includes a fan configured to generate an air flow path for a radiator, the air flow path extending from the fan to the radiator and a cooling pipe extended between a turbocharger and an intake manifold, the cooling path positioned in the air flow path between the fan and the radiator.

To provide such a cooling fan control device, a cooling device, and a cooling fan control method that can cool a heat exchanger appropriately according to an air density. A cooling fan control device controls a rotation speed of a cooling fan being driven by power supplied from an alternator and cooling the heat exchanger. The cooling fan control device comprises a density detection means detecting the air density. The cooling fan control device comprises a controller, where the smaller the air density detected by the density detection means is, the greater an upper limit of target rotation speed of the cooling fan is set, as long as power consumption of the cooling fan does not exceed a power capacity of a power supply source.

An air cooler for a natural gas engine. The air cooler includes a cooler body having an air inlet, an air outlet, a natural gas inlet, and a natural gas outlet, wherein the air inlet is configured to receive air and the air outlet is configured to discharge the air, and wherein the natural gas inlet is configured to receive natural gas and the natural gas outlet is configured to discharge the natural gas; and a plurality of cooling tubes disposed within the cooler body between the air inlet and the air outlet and in fluid communication with the natural gas inlet and the natural gas outlet, wherein the plurality of cooling tubes are configured to draw heat away from the air using the natural gas when the air flows through the cooler body from the air inlet to the air outlet and passes over the plurality of cooling tubes.

To provide such a cooling fan control device, a cooling device, and a cooling fan control method that can cool a heat exchanger appropriately according to an air density. A cooling fan control device controls a rotation speed of a cooling fan being driven by power supplied from an alternator and cooling the heat exchanger. The cooling fan control device comprises a density detection means detecting the air density. The cooling fan control device comprises a controller, where the smaller the air density detected by the density detection means is, the greater an upper limit of target rotation speed of the cooling fan is set, as long as power consumption of the cooling fan does not exceed a power capacity of a power supply source.

A work vehicle includes an engine and a belt-type continuously variable transmission device provided on a lateral side of the engine and configured to (i) receive power from the engine and (ii) output the power to a traveling device while varying the power in terms of speed. The belt-type continuously variable transmission device has (i) an intake port which is present in the transmission device case and through which cooling air is sucked from outside the transmission device case into the transmission device case as a result of rotation of the rotary fan and (ii) a first exhaust port which is present in the transmission device case and through which the cooling air is discharged from inside the transmission device case as a result of the rotation of the rotary fan. The first exhaust port is present on a side of the exhaust pipe on which side the engine is present, and faces the engine.

A thermal management system and method for a vehicle includes a cooling system having a variable cooling capacity and which is connectable to a heat-producing system of the vehicle. A control system is configured to increase the cooling capacity of the cooling system to a first predetermined level in response to the at least one input indicating an increase in the future heat load of the heat-producing system when a temperature of the cooling system is at least a predetermined temperature and the cooling system is operating below the first predetermined level. The control system is also configured to inhibit increasing the cooling capacity of the cooling system to the first predetermined level in response to the at least one input indicating an increase in the future heat load of the heat-producing system when the temperature of the cooling system is less than the predetermined temperature.

A passive cooling system includes a fan configured to generate an air flow path for a radiator, the air flow path extending from the fan to the radiator and a cooling pipe extended between a turbocharger and an intake manifold, the cooling path positioned in the air flow path between the fan and the radiator.

A machine system includes a compressor, and a cooler having an inlet tank to receive compressed air from the compressor, and a header assembly attached to the inlet tank and including a plurality of cooling tubes supported in the header and each having an external heat exchange surface exposed to a flow of cooling air. The cooler further includes a plurality of graphite pack seals each extending peripherally around one of the cooling tubes, and a clamping assembly clamping the pack seals against the header to squeeze the pack seals into sealing contact with the cooling tubes and the header.

A charge air cooler shroud is provided. That charge air cooler shroud includes a main body having an access opening and a removable access panel carried on the main body and covering the access opening. A method is also disclosed for mounting a cooling module to a frame of a motor vehicle.

The disclosure provides a novel cooling system for an internal combustion engine, which comprises a cooling fan, a first water radiator, an intercooler and a second water radiator, wherein the intercooler is positioned between the first water radiator and the second water radiator; the first water radiator is positioned at one end, close to an air inlet pipe, of an air inlet side of the intercooler, and the second water radiator is positioned at one end, close to an air outlet pipe, of an air outlet side of the intercooler; and the first water radiator, the intercooler and the second water radiator jointly form a heat exchange unit, and the cooling fan is provided on an outer side of the heat exchange unit. According to the disclosure, the heat exchange is more sufficient, the efficiency is higher, the water resistance is smaller, the cold air demand is less.