Abstract: A cooling system may include a cylinder block; an exhaust gas recirculation (EGR) cooler that receives some of a coolant of the cylinder block and transmits the received coolant back to the cylinder block; a cylinder head that receives a coolant from the cylinder block; a thermal management module that selectively transmits the coolant received from the cylinder head to a plurality of coolant lines; a water pump that transmits the coolants transmitted from the plurality of coolant lines to the cylinder block; and a controller that is connected to the thermal management module and configured to control operation of the thermal management module.

Abstract: The present disclosure provides an engine cooling system having a coolant temperature sensor, including a radiator disposed to release heat of coolant circulated in an engine; a coolant control valve unit controlling the coolant circulated in the radiator through opening rate of a valve having a coolant passage corresponding to the radiator; a second coolant temperature sensor sensing a coolant temperature at a coolant outlet side of the engine; a third coolant temperature sensor sensing the coolant temperature at the coolant outlet side of the radiator; and a control unit sensing second and third coolant temperatures through the second and third coolant temperature sensors, calculating a first coolant temperature at a coolant inlet side of the engine by calculating the second and third coolant temperatures, and calculating valve opening rate of the coolant control vale by using the first, second, and the third coolant temperature.

Abstract: A cooling system may include a cylinder block; an exhaust gas recirculation (EGR) cooler that receives some of a coolant of the cylinder block and transmits the received coolant back to the cylinder block; a cylinder head that receives a coolant from the cylinder block; a thermal management module that selectively transmits the coolant received from the cylinder head to a plurality of coolant lines; a water pump that transmits the coolants transmitted from the plurality of coolant lines to the cylinder block; and a controller that is connected to the thermal management module and configured to control operation of the thermal management module.

Abstract: The present disclosure provides a method and system, for controlling a coolant circulating in an engine, including: selecting a reference inlet temperature for a coolant flowing through a coolant inlet of an engine; controlling an open rate of the coolant control valve unit based on the reference inlet temperature; sensing an actual inlet temperature of the coolant flowing through the coolant inlet of the engine; sensing an actual outlet temperature of a coolant flowing through a coolant outlet of the engine; calculating a difference value between the actual inlet temperature and the actual outlet temperature; and varying the reference inlet temperature according to the difference value.

Abstract: The present disclosure provides a split cooling apparatus for an internal combustion engine, the apparatus including: a base inserted into a water jacket of a cylinder block, the base surrounding an outside of a cylinder along a shape of the cylinder; an insertion groove formed on the base by being depressed into an inner surface of the base; and a sealing member inserted into the insertion groove, wherein when a temperature of cooling water supplied into the water jacket reaches a preset temperature or higher, the sealing member expands so as to close a flow passage between the base and the cylinder, thereby increasing flow resistance of the cooling water and thus reducing a heat transfer rate of the cylinder.

Abstract: The present disclosure provides an engine cooling system having a coolant temperature sensor to sense the temperature of coolant discharged from an engine; a radiator radiating heat while part of the coolant discharged from the engine is passed through the radiator; a coolant control valve unit to control coolant passing through the radiator and coolant supplied from the engine; and a control unit configured to control the temperature of coolant by controlling the coolant control valve unit according to the coolant temperature sensed by the coolant temperature sensor, wherein the control unit calculates a coolant temperature at an entrance of the engine using the sensed coolant temperature and a heat rejection rate of the engine based on the operation condition, calculates a temperature of coolant discharged from the radiator, and controls the opening degree of the coolant control valve unit using the coolant temperatures.

Abstract: A split cooling system of an internal combustion engine may include a water pump configured to circulate cooling water; a cylinder head and a cylinder block configured to be supplied with the cooling water from the water pump; an integrated flow control valve configured to include an inlet provided to be supplied with the cooling water of the cylinder head and a plurality of valves that are configured to be opened or closed to distribute the cooling water introduced through the inlet to an oil heat exchanger, a heater core, and a radiator; and a split cooler configured to be mounted at the cylinder block to provide a split cooling channel in the cylinder block and the cylinder header.

Abstract: A cooling system of an engine may include a cylinder liner formed in a hollow cylindrical shape and pressed against an inside of a cylinder of the engine, a block coolant jacket positioned in an outer side of the cylinder liner in a radial direction to cool a cylinder block, the cylinder block provided with the cylinder liner and the block coolant jacket therein, and a cylinder head engaged on the cylinder block, including an exhaust port and an intake port fluidically-communicated with a combustion chamber and respectively formed at an exhaust side and an intake side, and provided with a head coolant jacket inside, in which the block coolant jacket includes an upper coolant jacket and a lower coolant jacket and a division wall is disposed between the upper coolant jacket and the lower coolant jacket to block fluid flow therebetween.

Abstract: A split cooling system of an internal combustion engine may include a water pump configured to circulate cooling water; a cylinder head and a cylinder block configured to be supplied with the cooling water from the water pump; an integrated flow control valve configured to include an inlet provided to be supplied with the cooling water of the cylinder head and a plurality of valves that are configured to be opened or closed to distribute the cooling water introduced through the inlet to an oil heat exchanger, a heater core, and a radiator; and a split cooler configured to be mounted at the cylinder block to provide a split cooling channel in the cylinder block and the cylinder header.

Abstract: The present disclosure provides a split cooling apparatus for an internal combustion engine, the apparatus including: a base inserted into a water jacket of a cylinder block, the base surrounding an outside of a cylinder along a shape of the cylinder; an insertion groove formed on the base by being depressed into an inner surface of the base; and a sealing member inserted into the insertion groove, wherein when a temperature of cooling water supplied into the water jacket reaches a preset temperature or higher, the sealing member expands so as to close a flow passage between the base and the cylinder, thereby increasing flow resistance of the cooling water and thus reducing a heat transfer rate of the cylinder.

Abstract: The present disclosure provides an engine cooling system having a coolant temperature sensor to sense the temperature of coolant discharged from an engine; a radiator radiating heat while part of the coolant discharged from the engine is passed through the radiator; a coolant control valve unit to control coolant passing through the radiator and coolant supplied from the engine; and a control unit configured to control the temperature of coolant by controlling the coolant control valve unit according to the coolant temperature sensed by the coolant temperature sensor, wherein the control unit calculates a coolant temperature at an entrance of the engine using the sensed coolant temperature and a heat rejection rate of the engine based on the operation condition, calculates a temperature of coolant discharged from the radiator, and controls the opening degree of the coolant control valve unit using the coolant temperatures.

Abstract: The present disclosure provides an engine cooling system having a coolant temperature sensor, including a radiator disposed to release heat of coolant circulated in an engine; a coolant control valve unit controlling the coolant circulated in the radiator through opening rate of a valve having a coolant passage corresponding to the radiator; a second coolant temperature sensor sensing a coolant temperature at a coolant outlet side of the engine; a third coolant temperature sensor sensing the coolant temperature at the coolant outlet side of the radiator; and a control unit sensing second and third coolant temperatures through the second and third coolant temperature sensors, calculating a first coolant temperature at a coolant inlet side of the engine by calculating the second and third coolant temperatures, and calculating valve opening rate of the coolant control vale by using the first, second, and the third coolant temperature.

Abstract: The present disclosure provides a method and system, for controlling a coolant circulating in an engine, including: selecting a reference inlet temperature for a coolant flowing through a coolant inlet of an engine; controlling an open rate of the coolant control valve unit based on the reference inlet temperature; sensing an actual inlet temperature of the coolant flowing through the coolant inlet of the engine; sensing an actual outlet temperature of a coolant flowing through a coolant outlet of the engine; calculating a difference value between the actual inlet temperature and the actual outlet temperature; and varying the reference inlet temperature according to the difference value.

Abstract: A cooling system of an engine may include a cylinder liner formed in a hollow cylindrical shape and pressed against an inside of a cylinder of the engine, a block coolant jacket positioned in an outer side of the cylinder liner in a radial direction to cool a cylinder block, the cylinder block provided with the cylinder liner and the block coolant jacket therein, and a cylinder head engaged on the cylinder block, including an exhaust port and an intake port fluidically-communicated with a combustion chamber and respectively formed at an exhaust side and an intake side, and provided with a head coolant jacket inside, in which the block coolant jacket includes an upper coolant jacket and a lower coolant jacket and a division wall is disposed between the upper coolant jacket and the lower coolant jacket to block fluid flow therebetween.

Abstract: An apparatus circulates a coolant in a turbocharger, which includes a first coolant line for supplying the coolant to the turbocharger from a water pump and configured to form a first flow resistance member to increase flow resistance to the coolant flowing through the first coolant line.

Abstract: A thermostat is fitted with a heat sensing portion caused to expand and move by heat transmitted from a coolant, and controlling a flow rate of the coolant flowing into a radiator or an engine by operation of the heat sensing portion. The thermostat includes a flow-changing wall mounted at a lower portion of the thermostat such that the flow-changing wall changes a flow direction of the coolant, towards a vicinity of the heat sensing portion. The flow-changing wall comprises a coupling poriton fixedly coupled to a lower portion of the heat sensing portion, and a skirt extending towards a lower portion of the coupling portion such that the skirt changes the flow direction of the coolant, towards the coupling portion.

Abstract: An apparatus for controlling a coolant flow of a vehicle includes a control valve connected to a plurality of cooling lines through which a coolant flows and controlling the coolant flow between the respective coolant lines. A controller is configured to control the control valve to flow the coolant between the plurality of cooling lines when a power is applied to the vehicle.

Abstract: An apparatus circulates a coolant in a turbocharger, which includes a first coolant line for supplying the coolant to the turbocharger from a water pump and configured to form a first flow resistance member to increase flow resistance to the coolant flowing through the first coolant line.

Abstract: A drain apparatus may include a storage chamber that has a through-hole through which a coolant, which leaks through a mechanical seal sealing an impeller shaft of a water pump in a vehicle, flows inside, and stores the coolant flowing inside via the through-hole, and a discharge tube that may be disposed vertically through a bottom of the storage chamber, with an upper end thereof extending to the inside of the storage chamber such that a height thereof may be positioned between a top and the bottom of the storage chamber.

Abstract: An exhaust heat recirculation apparatus is capable of improving fuel mileage by heating lubricant using exhaust heat. The exhaust gas recirculation apparatus has a heat exchanger that is mounted at an exhaust line of an engine for heating coolant using the exhaust gas. The exhaust gas recirculation apparatus may include a main line allowing exhaust gas exhausted from each cylinder of the engine to communicate to a exhaust gas inlet, a bypass line communicated to a downstream side of the main line, a bypass valve mounted inside the bypass line, and a heat exchanger selectively communicated to the bypass line by way of the bypass valve.