Abstract: Systems are provided for a heat exchanger having a housing and core elements arranged therein in a stack. A flow path for a first fluid runs through the core elements from a housing inlet opening to a housing outlet opening. The core elements are all oriented in the same direction relative to the housing inlet opening and the housing outlet opening.

Abstract: A vehicle cooling system includes a first cooling circuit having a first operating temperature range when the vehicle is in an operational state, a second cooling circuit having a second operating temperature range, and a degas bottle. The degas bottle has a first chamber operably coupled to the first cooling circuit and a second chamber operably coupled to the second cooling circuit. The degas bottle includes a first chamber operably coupled to the first cooling circuit, a second chamber operably coupled to the second cooling circuit, and a third chamber configured as a common filling chamber for the first and second chambers. The first chamber is operably coupled to the third chamber via a first filling gate, and the second chamber is operably coupled to the third chamber via a second filling gate. The first and second filling gates are configured for simultaneous opening during a fill operation in which cooling fluid is provided into the third chamber to fill the first and second chambers.

Abstract: Methods and systems are provided for an expansion reservoir for an engine cooling system. In one example, a cooling system may include a first cooling circuit and a second cooling circuit, the second cooling circuit configured to operate at a different temperature than the first cooling circuit, wherein the expansion reservoir is configured to receive coolant from and return coolant to the first and second cooling circuits. The expansion reservoir may further comprise one or more valves arranged so as to control the flow of coolant from the second cooling circuit to the expansion reservoir and/or from the expansion reservoir to the second cooling circuit depending on the temperature of the coolant.

Abstract: Methods and systems are provided for an expansion reservoir for an engine cooling system. In one example, a cooling system may include a first cooling circuit and a second cooling circuit, the second cooling circuit configured to operate at a different temperature than the first cooling circuit, wherein the expansion reservoir is configured to receive coolant from and return coolant to the first and second cooling circuits. The expansion reservoir may further comprise one or more valves arranged so as to control the flow of coolant from the second cooling circuit to the expansion reservoir and/or from the expansion reservoir to the second cooling circuit depending on the temperature of the coolant.