Methods and systems are provided for an intake system. In one example, a housing comprises a compressor, a cooler, and an air intake arranged therein. The cooler comprises a cylindrical shape and surrounds the compressor.

Various systems are provided for a charge-air cooler system. In one example, a system includes a turbocharger system having at least one compressor and one turbine and configured to provide charge air to an engine. The system also includes a charge-air cooler system having at least one charge-air cooler arranged below the at least one compressor, a turbocharger bracket arranged directly below the charge-air cooler system and shaped to mount the charge-air cooler and the turbocharger system to the engine, and a stator adapter physically coupling an alternator to the engine. The stator adapter includes an accessibility window arranged below the charge-air cooler system. The at least one charge-air cooler is closer to the accessibility window than the turbocharger system.

A charge air cooler, e.g., as used with a supercharger having meshing rotors in sealing contact with a housing, the housing having an inlet port to admit air into the meshing rotors and the housing having an outlet port to expel air from the meshing rotors, the charge air cooler having an inlet-side core for transmitting the flow of pressurized air, and an outlet-side core receiving the flow of pressurized air transmitted from the inlet-side core and further transmitting the flow of pressurized air, each core having coolant conduits and fins joined to the coolant conduits for contact with the flow of pressurized air, the fins being arranged with a predetermined density, wherein the inlet-side core fin density is lower than the outlet-side core fin density, whereby the inlet-side core presents less resistance to the flow of pressurized air than the outlet-side core and the outlet-side core presents greater surface area for heat conductance from the flow of pressurized air than the inlet-side core. Charge air coolers with this configuration provide improved pressure and temperature characteristics in a supercharger's flow of pressurized air to an engine.

Methods and systems for an engine intake system. In one example, a system comprises a first charge air cooler arranged upstream of a second charge air cooler. The first charge air cooler is configured to provide thermal transfer between a compressed charge air and a fresh intake air.

A heat exchanger for providing charged air to a vehicle is described. The heat exchanger includes a plurality of heat exchange elements, and at least one passage. The plurality of heat exchange elements is stacked together in between a pair of side plates, and ends of the plurality of heat exchange elements are received in a pair of headers to configure a fluid circuit. The at least one passage is formed in a first heat exchange element amongst the plurality of heat exchange elements, along with the plurality of heat exchange elements and the first heat exchange element is formed above at least few heat exchange elements of the plurality of heat exchange elements.

Methods and systems are provided for a tempering circuit. A system comprises where the tempering circuit is fluidly coupled to each of an engine cooling circuit, an EGR cooler, and an EGR valve. The tempering circuit comprising a plurality of control valves for selectively adjusting tempering medium flow to various portions of the tempering circuit.

An intake manifold drain assembly of an engine comprises a drain tube connected to a bottom of a manifold chamber; an oil separator connected to an engine block; and a controlled check valve connecting the drain tube to the oil separator and configured to allow liquid and gas in the manifold chamber to flow into the oil separator and control a gas flow passing the controlled check valve below a threshold flowrate.

An internal combustion engine, especially a diesel internal combustion engine, having at least one intercooler, at least one control unit, at least a first and a second cooling circuit, whereby the cooler of the first cooling circuit is flow-connected to a cooling circuit of the internal combustion engine, while the cooler of the second cooling circuit of the internal combustion engine is flow-connected to the intercooler.

An engine system with exhaust gas recirculation includes a combustion engine, a flow mixer, and a turbocharger. An exhaust flow path and a charge air flow path each extend to an inlet of the flow mixer, and a mixed gas flow path extends between the outlet of the flow mixer and an intake manifold of the engine. A charge air heat exchanger is arranged along the charge air flow path to cool the charge air, and a mixed gas heat exchanger is arranged along the mixed gas flow path to cool mixed charge air and recirculated exhaust gas. The exhaust gas recirculation flow path does not extend through any heat exchangers.

A system according to the present disclosure includes a coolant flow request module and a pump control module. The coolant flow request module is configured to determine a coolant flow request based on at least one of (i) an outlet temperature of a compressor disposed upstream of a heat exchanger of a charge air cooler, and (ii) an efficiency of a radiator of the charge air cooler. The pump control module is configured to control an output of a pump based on the coolant flow request. The pump circulates coolant through the radiator of the charge air cooler and through the heat exchanger of the charge air cooler when the pump is activated. The heat exchanger is disposed upstream of an intake manifold of an engine.