A crawled vehicle comprising: an internal combustion engine; an engine compartment wherein the internal combustion engine is housed; an air inlet opening to catch air from the outside of the crawled vehicle; a first channel, for cold air, connected and fed by the air inlet opening with air coming from outside the crawled vehicle; a second channel to be fed with hot air coming from the internal combustion engine; a third channel for air, coupled to the internal combustion engine to feed the internal combustion engine with air; an air filter arranged along the third channel and upstream of the internal combustion engine; a connection element connected to the first channel, to the second channel and third channel; and an air adjusting device to adjust the air temperature in the third channel and comprising a shutter coupled to the first channel and/or to the second channel and/or to the connection element; and a control device controlling a position of the shutter to adjust the temperature of the air entering the third channel.

Disclosed is a transport refrigeration unit (TRU) having: an engine configured to power a refrigeration system of the TRU, the engine including an air intake, the engine within an engine compartment of the TRU; an air management valve (AMV) fluidly coupled to the air intake; a first duct fluidly coupled to the AMV and including a first inlet within the engine compartment; and a second duct fluidly coupled to the AMV and including a second inlet that is exterior to the engine compartment and is configured to receive atmospheric air; wherein: the AMV is configured to modulate air into the engine from the first duct and the second duct, when a temperature of air within the AMV is above the first threshold and the temperature of air within the second duct is below the first threshold, to lower the temperature of air entering the engine to below the first threshold.

A fluid control system for an engine may include an air pathway to carry air to the engine, a fuel pathway to carry a fuel to the engine, and at least one temperature control device to control temperatures of the air and the fuel. The temperature control device maintains the air and the fuel at a temperature based on a target air-fuel ratio and a target volume of the air and the fuel.

A fluid control system for an engine may include an air pathway to carry air to the engine, a fuel pathway to carry a fuel to the engine, and at least one temperature control device to control temperatures of the air and the fuel. The temperature control device maintains the air and the fuel at a temperature based on a target air-fuel ratio and a target volume of the air and the fuel.

A fluid control system for an engine may include an air pathway to carry air to the engine, a fuel pathway to carry a fuel to the engine, and at least one temperature control device to control temperatures of the air and the fuel. The temperature control device maintains the air and the fuel at a temperature based on a target air-fuel ratio and a target volume of the air and the fuel.

A fluid control system for an engine may include an air pathway to carry air to the engine, a fuel pathway to carry a fuel to the engine, and at least one temperature control device to control temperatures of the air and the fuel. The temperature control device maintains the air and the fuel at a temperature based on a target air-fuel ratio and a target volume of the air and the fuel.

Disclosed is a transport refrigeration unit (TRU) having: an engine configured to power a refrigeration system of the TRU, the engine including an air intake, the engine within an engine compartment of the TRU; an air management valve (AMV) fluidly coupled to the air intake; a first duct fluidly coupled to the AMV and including a first inlet within the engine compartment; and a second duct fluidly coupled to the AMV and including a second inlet that is exterior to the engine compartment and is configured to receive atmospheric air; wherein: the AMV is configured to modulate air into the engine from the first duct and the second duct, when a temperature of air within the AMV is above the first threshold and the temperature of air within the second duct is below the first threshold, to lower the temperature of air entering the engine to below the first threshold.

A crawled vehicle comprising: an internal combustion engine; an engine compartment wherein the internal combustion engine is housed; an air inlet opening to catch air from the outside of the crawled vehicle; a first channel, for cold air, connected and fed by the air inlet opening with air coming from outside the crawled vehicle; a second channel to be fed with hot air coming from the internal combustion engine; a third channel for air, coupled to the internal combustion engine to feed the internal combustion engine with air; an air filter arranged along the third channel and upstream of the internal combustion engine; a connection element connected to the first channel, to the second channel and third channel; and an air adjusting device to adjust the air temperature in the third channel and comprising a shutter coupled to the first channel and/or to the second channel and/or to the connection element; and a control device controlling a position of the shutter to adjust the temperature of the air entering the third channel.

A charge air cooler (CAC) includes a first header including a first interior portion, a second header spaced from the first header. The second header includes a second interior portion. At least one conduit extends between the first header and the second header. The at least one conduit includes a first end fluidically connected to the first interior portion, a second end fluidically connected to the second interior portion, and an intermediate portion extending therebetween. A heating system is arranged in a heat exchange relationship with the at least one conduit. The heating system is selectively operable to increase a temperature of fluids passing through the at least one conduit into one of the first and second headers.

A charge air cooler (CAC) includes a first header including a first interior portion, a second header spaced from the first header. The second header includes a second interior portion. At least one conduit extends between the first header and the second header. The at least one conduit includes a first end fluidically connected to the first interior portion, a second end fluidically connected to the second interior portion, and an intermediate portion extending therebetween. A heating system is arranged in a heat exchange relationship with the at least one conduit. The heating system is selectively operable to increase a temperature of fluids passing through the at least one conduit into one of the first and second headers.