Patent ID: 8739745

Claim:
A split coolant circuit in an internal combustion engine comprising: a pump; a cylinder head water jacket including an inlet in fluidic communication with an outlet of the pump; an engine block water jacket including an inlet in fluidic communication with an outlet of the cylinder head water jacket; a first heat exchanger; a second heat exchanger including an outlet in fluidic communication with an inlet of the pump and an inlet in fluidic communication with the outlet of the cylinder head water jacket; and a flow control element and thermostat coupled to the outlet of the cylinder head water jacket, the flow control element including a first outlet port in fluidic communication with an inlet of the engine block water jacket, a second outlet port in fluidic communication an inlet of the first heat exchanger, a third outlet port in fluidic communication with an inlet of the second heat exchanger, and a fourth outlet port from the thermostat in fluidic communication with the first heat exchanger.