Patent ID: 8689742

Claim:
An integrated coolant flow control and heat exchange device ( 10 ) for a vehicle including an internal combustion engine, a transmission, a unit heater, a radiator, an engine control module, and a pump for delivering an engine coolant to the engine, the device comprising: a heat exchange part ( 30 ) which includes an outlet ( 31 ) that discharges a coolant from the heat exchange part ( 30 ) toward the pump, a first inlet ( 32 ) that is connected to receive a coolant coming directly from the radiator, a second inlet ( 33 ) that is connected to receive a coolant coming from the unit heater, and a heat exchanger ( 40 ) provided inside the heat exchange part ( 30 ), the heat exchanger ( 40 ) including an inlet ( 41 ) that is connected to receive from a source of supply a vehicle fluid and an outlet ( 42 ) that discharges the vehicle fluid from the heat exchanger ( 40 ) toward the supply source by which the heat exchanger ( 40 ) is in fluid communication with the supply source; and a valve body part ( 20 ) which includes an inlet ( 21 ) that is connected to receive from a coolant coming from the engine, a first outlet ( 22 ) that discharges a coolant from the valve body part toward the radiator, and a second outlet ( 23 ) that discharges a coolant from the valve body part toward the unit heater, wherein the valve body part ( 20 ) further includes a third outlet ( 24 ), the heat exchange part ( 30 ) further includes a third inlet ( 34 ), and the third outlet ( 24 ) of the valve body part ( 20 ) is connected to the third inlet ( 34 ) of the heat exchange part ( 30 ) thereby making the valve body part ( 20 ) and the heat exchange part ( 30 ) in fluid communication with each other which functions as the engine bypass so that none, some or all of the coolant inside the valve body part ( 20 ) are delivered to the heat exchange part ( 30 ) to warm up and cool down the vehicle fluid inside the heat exchanger ( 40 ) by heat exchange therebetween, wherein the heat exchanger part ( 30 ) includes therein a first heat exchanger and a second heat exchanger for receiving, accommodating and discharging a first and second vehicle fluid, respectively whereby the first and second vehicle fluid in the first and second heat exchanger are warmed or cooled by heat exchange with the coolant in the heat exchange part ( 30 ).