Abstract: A cylinder head for an internal combustion engine with at least one cylinder has a cooling duct system which has a coolant inlet side and a coolant outlet side, a combustion chamber section, two coolant-inlet-side gas ducts, two coolant-outlet-side gas ducts and two adjacent component openings, such as a spark plug opening and an injection nozzle opening. The cylinder head has an annular wall section provided between the component openings, on the one hand, and the gas ducts, on the other hand. The cooling duct system has a web cooling duct which runs into the annular wall section, extends between the coolant-inlet-side gas ducts and has an upper wall. The upper wall has a guiding surface which is directed obliquely downwards in the region of the annular wall section in order to deflect coolant in the direction of the combustion chamber section.

Abstract: Provided is a vehicle including: a vehicle main body including an electrical device that generates heat when the vehicle travels; a heat exchanger that performs heat exchange between outside air and a refrigerant; and cooling piping that constitutes a flow passage through which the refrigerant circulates between the electrical device and the heat exchanger, with a part of the flow passage being routed on a lower surface side of and in contact with a floor panel that constitutes a part of the vehicle main body.

Abstract: An internal combustion engine system including a cylinder block, a cylinder head attached to the cylinder block, an EGR cooler, and a coolant collector bracket is provided. The cylinder head includes a plurality of coolant passages. The coolant collector bracket is coupled to and between the cylinder head and the EGR cooler. The coolant collector bracket includes a plurality of coolant inlets directly coupled to a plurality of outlets of the plurality of coolant passages of the cylinder head. The coolant collector bracket also includes an EGR coolant outlet directly coupled to an inlet of the EGR cooler. The coolant collector bracket also includes an EGR cooler inlet directly coupled to an outlet of the EGR cooler.

Abstract: A cooling device for a vehicle is provided, which includes a first coolant channel through which a first coolant for cooling an engine flows, a second coolant channel through which a second coolant for cooling a motor drive flows, and an oil channel through which oil for lubricating inside a transmission flows. The oil channel includes a first heat exchanger configured to exchange heat between the first coolant and the oil, a second heat exchanger configured to exchange heat between the second coolant and the oil, and a valve configured to adjust a first flow rate of the oil circulating through the first heat exchanger and a second flow rate of the oil circulating through the second heat exchanger.

Abstract: A work machine with a remote diagnostic system includes a combustion engine, a pump, a coolant temperature sensor to monitor and transmit a coolant fluid temperature, a pressure sensor coupled to an inlet of the pump, and a controller. The pressure sensor is configured to monitor and transmit a coolant fluid pressure. The controller is operatively associated with the engine, the coolant fluid temperature sensor, the pressure sensor and an equipment care advisor module. The equipment care advisor module is configured to monitor the coolant fluid temperature during a start-up of the work machine, monitor the coolant fluid pressure during the start-up of the work machine, calculate an expected coolant fluid pressure based on the monitored coolant fluid temperature and the monitored coolant fluid pressure, and generate a failure code indicating a combustion gas leak when the monitored coolant fluid pressure exceeds the expected coolant fluid pressure.

Abstract: Systems, devices, and method are disclosed for differentially cooling an internal combustion engine. A cooling system includes a first cooling circuit configured to lower a temperature of a cooling fluid to a first temperature where the first cooling circuit is configured to dispense a first portion of the cooling fluid to cylinder walls and non-cylinder or non-combustion surfaces of the engine. The cooling system also includes a second cooling circuit configured to lower the temperature of a remaining or second portion of the cooling fluid to a second temperature that is lower than the first temperature where the second cooling circuit is configured to dispense the remaining portion of the cooling fluid to cylinder or combustion surfaces within one or more cylinders of the internal combustion engine.

Abstract: Described is an internal combustion engine, in particular including a dual-circuit water cooling system, including a crankcase and at least one inlet and/or outlet rail which is/are situated upstream from the crankcase and receives a coolant communicating with this crankcase, at least one coolant-conducting cylinder head, and at least one outlet and/or inlet rail downstream from the cylinder head receiving a coolant communicating with the cylinder head.

Abstract: A structural frame is provided. The structural frame includes a bottom surface, first and second cylinder block sidewall engaging surfaces, the first and second cylinder block sidewall engaging surfaces positioned above the bottom surface at a height that is above a centerline of a crankshaft support included in a cylinder block when the structural frame is coupled to the cylinder block.

Abstract: A battery cooling system may include a first cooling device including a first radiator and a first water pump connected through a first coolant line and circulating a coolant in the first coolant line to cool at least one electrical component and at least one motor; a second cooling device including a second radiator and a second water pump connected through a second coolant line and circulating the coolant in the second coolant line; a battery module mounted on a battery coolant line selectively connectable to the second coolant line through a valve; and a chiller mounted on the battery coolant line and through which the coolant passes, connected to a refrigerant line of an air conditioning device through a refrigerant connection line, and making the coolant which selectively flows exchange heat with a refrigerant supplied from the air conditioning device to control a temperature of the coolant.

Abstract: A heat pump system may include first and second cooling devices, a battery module, and a chiller by heating or cooling the battery module by one chiller in which a coolant and a refrigerant exchange heat and a main heat exchanger provided in an air conditioning device is connected to each of first and second coolant lines so that the coolant circulated in each of the first and second cooling devices passes through the main heat exchanger, the refrigerant passing through the main heat exchanger exchanges heat with the coolant supplied through the first coolant line and exchanges heat with the coolant supplied through the second coolant line, and a flash tank separating refrigerants which have exchanged heat into a gaseous refrigerant and a liquid refrigerant and selectively discharging the gaseous refrigerant and the liquid refrigerant may be provided in the main heat exchanger.

Abstract: Methods and systems are provided for a heat exchanger. In one example, a method may include adjusting a flap to adjust a number of conduits configured to receive exhaust gas recirculate and exhaust gas within the heat exchanger.

Abstract: A head-side jacket through which coolant flows is formed in a cylinder head. A main circulation path and a sub circulation path through which coolant fed from a coolant pump respectively circulates are formed. The head-side jacket is separated into an exhaust-port side jacket formed around an exhaust port, and a combustion-chamber-side jacket closer to a combustion chamber than the exhaust-port-side jacket. A heat exchanger is not formed in the main circulation path including the combustion-chamber-side jacket, but is formed in the sub circulation path excluding the combustion-chamber-side jacket and including the exhaust-port-side jacket.

Abstract: The exhaust system of a diesel engine includes components such as a turbocharger and an exhaust manifold which can have very high internal temperatures (e.g., any surface having a temperature above 135° C.). In accordance with the invention the components subject to the high temperatures are coated with at least a first layer of thermally insulating material and a second layer overlying the first layer to provide surface protection. So coated, the temperature of the outer coated surfaces of these components is brought below an undesirably high level. Also, selected ones of the components may be water cooled and/or have a fitted jacket and/or be placed within an explosion proof enclosure. The input fuel line may also include a magnetic explosion proof fuel economizer to control the combustion process and reduce the internal temperature.

Abstract: The present disclosure relates to a separate cooling system of a vehicle, including an engine including a cylinder head and a cylinder block transmitting a coolant to the cylinder head, a coolant pump, a plurality of parts disposed on a plurality of coolant lines, an electronic thermostat mounted on the cylinder block so as to selectively transmit the coolant from the cylinder block to the plurality of coolant lines, a cooling coolant temperature sensor measuring a coolant temperature of the cylinder block, a controller controlling an operation of the electronic thermostat depending on a vehicle operation state output signal including the cooling coolant temperature sensor, and a mechanical thermostat disposed at an upstream of the coolant pump so as to selectively block the coolant via a radiator and a reservoir tank among the coolant transmitted from the plurality of coolant line to the coolant pump.

Abstract: 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.

Abstract: Methods and systems are provided for expediting engine cooling while reducing the overall energy consumption of the engine cooling system's components. A first circulation pump is used to pump coolant through an engine block as a function of engine output while a second radiator pump is selectively operated when a thermostat valve is open to pump coolant through a radiator and the engine block to effect the engine coolant temperature. Operation of the second pump is coordinated with the operation of a radiator cooling fan and grille shutters to improve radiator performance.

Abstract: Examples of techniques combining flow requests to control coolant fluid in a cooling system for an internal combustion engine are provided. In one example implementation, a method includes receiving, by a processing device, a block flow request from an engine block. The method further includes receiving, by the processing device, a head flow request from an engine head. The method further includes calculating, by the processing device, an engine flow based at least in part on the block flow request and the head flow request. The method further includes calculating, by the processing device, a flow split request based at least in part on the block flow request and the engine flow. The method further includes operating, by the processing device, a block rotary valve based at least in part on the block flow.

Abstract: A cooling system (10) for a vehicle has a high temperature cooling circuit (11) for cooling a drive assembly (13) and an exhaust gas turbocharger (14) and has a low temperature cooling circuit (12) for cooling a charge air cooler (19). The high temperature cooling circuit (11) and the low temperature cooling circuit (12) are coupled via a coupling line (25), into which a nonreturn valve (26) is connected. The nonreturn valve (26) is opened or closed depending on the pressure ratio between the high temperature cooling circuit (11) and the low temperature cooling circuit (12). The high temperature cooling circuit (11) and the low temperature cooling circuit (12) can be vented via a common cooling water compensation tank (21) only in defined operating states when the nonreturn valve (26) of the coupling line (25) is open.

Abstract: A cooling structure includes a block-side water jacket formed in a cylinder block, a head-side water jacket formed in a cylinder head, an introducing portion which introduces a cooling liquid from an end of the cylinder block to the block-side water jacket, a discharging portion which discharges a cooling liquid from the other end of the cylinder block to the head-side water jacket, and a spacer member accommodated in the block-side water jacket, and including a peripheral wall which forms an exhaust-side passage and an intake-side passage between a cylinder bore wall and the peripheral wall. The spacer member includes a distribution adjustment mechanism which distributes a cooling liquid introduced to the block-side water jacket between the exhaust-side passage and the intake-side passage.

Abstract: An exhaust-heat recovery apparatus includes: a circulation passage, through which a heat carrier circulates, that has a heat recovery unit evaporating the heat carrier and a condenser condensing the evaporated heat carrier; a heat carrier controller that supplies the heat carrier in a liquid phase to the circulation passage; and a determination unit, in which the heat carrier controller supplies or recovers the heat carrier when a changing rate of an internal pressure in the circulation passage or a changing rate of a temperature of the heat carrier in the circulation passage is within a predetermined range, determines a type of abnormality based on the changing rate of the internal pressure in the circulation passage or the changing rate of the temperature of the heat carrier in the circulation passage after the supplying or the recovering of the heat carrier.

Abstract: The invention relates to an air conditioning device comprising a refrigerant circuit and a coolant circuit. The refrigerant circuit comprises at least a compressor, an internal heat exchanger, an external heat exchanger and an evaporator The coolant circuit comprises at least a first heat exchanger associated with a first component, a second heat exchanger associated with a second component and a radiator. A fluid/fluid heat exchanger is installed in the refrigerant circuit and in the coolant circuit, with the coolant circuit comprising a first loop and a second loop which are interconnected by an interconnection device. The first loop comprises the fluid/fluid heat exchanger, the first heat exchanger associated with the first component and a means for heating the coolant with the means interposed between the interconnection device and the fluid/fluid heat exchanger, the second loop comprising the second heat exchanger associated with the second component and the radiator.

Abstract: The invention relates to a liquid-cooled internal combustion engine (1), comprising: at least one cylinder block (2), which is connected to at least one cylinder head (3); at least one first cooling jacket (4) in the cylinder block (2) and at least one second cooling jacket (5) in the cylinder head (3), wherein the first and the second cooling jackets (4, 5) are arranged in a coolant circuit and are connected to each other with regard to flow; and at least one control element arranged in the coolant circuit.

Abstract: An auxiliary cooling system which is provided separately from an engine cooling passage in a vehicle provided with a turbo engine. The auxiliary cooling system includes a first line which connects a radiator and an intercooler to each other and on which an electric water pump is installed. A second line connects the intercooler and an intake manifold. A third line connects the intake manifold and the radiator, and a bypass valve selectively directly transfers cooling water, heated while passing through a turbine housing provided on a path of the third line, to the radiator or transfers the cooling water to the radiator via an engine block or a heater. Cooling water discharged from the intake manifold passes through an ETC (electronic throttle control) unit and thus reduces a temperature of intake air passing through the ETC unit.

Abstract: An apparatus for cooling a vehicle engine includes: a combustion chamber in which a piston reciprocates; water jackets in which a coolant flows to cool the combustion chamber; and a cylinder block forming a framework of an engine. In particular, the cylinder block includes: a cylinder block body in which the combustion chamber is formed, and an exhaust gas recirculation (EGR) cooler mounted in the cylinder block body such that the EGR cooler is heat-exchanged with a coolant discharged from the combustion chamber. The cylinder block body is provided with an EGR cooler insertion part, to which a coolant of the combustion chamber is supplied and the EGR cooler is inserted, and the EGR cooler is provided with a gas tube in which an exhaust gas flows. The exhaust gas of the gas tube is cooled by a coolant supplied to the EGR cooler insertion part.

Abstract: The invention relates to an internal combustion engine, in particular a large diesel engine, having at least a first and a second cooling circuit (31, 32), having at least one individual cylinder (1) with a cylinder housing (2) which accommodates a cylinder liner (3), and having at least one individual cylinder head (4), wherein the cylinder liner (3) is surrounded by at least one cooling jacket (5, 6) which is flow-connected to at least one cooling chamber (14) in the individual cylinder head (4), the cylinder liner (3) is surrounded by a first and a second cooling jacket (5, 6), wherein the first cooling jacket (5) is separated in flow terms from the second cooling jacket (6) within the cylinder housing (2).

Abstract: A cooling system for an internal combustion engine in a vehicle comprises a variable-speed coolant pump for providing a coolant flow to a plurality of heat-transfer nodes coupled in a coolant loop with the pump. Each node generates a flow rate request based on an operating state of the node. The coolant loop is configurable to a plurality of restriction states. A pump controller receives the flow rate requests, maps each respective flow request to a pump flow rate that would produce the respective pump flow rate request, selects a largest mapped pump flow rate, identifies a restriction state in which the coolant loop is configured, selects a pump speed in response to the selected flow rate and the identified restriction state, and commands operation of the pump to produce the selected pump speed.

Abstract: A cooling system and method of using a cooling system for an engine equipped with an exhaust gas recirculation (EGR) system. A pump provides pressure for circulating liquid through the cooling system. The cooling system has two loops: an engine cooling loop and an EGR cooling loop. The engine cooling loop cools the engine in a conventional manner. The EGR cooling loop goes first to an EGR cooler and next to an oil cooler. The heat exchange at the EGR cooler results in warmed coolant being delivered to the oil cooler, where it warms engine oil. Warm-up time for engine oil is thereby decreased.

Abstract: An automated vehicle (AV) can include a data processing system housed in a cooling rack, and a thermal reduction system to provide cooling for the data processing system. The thermal reduction system can include a fluid pump to pump cooling fluid through the cooling rack, a cabin radiator to receive the cooling fluid and pump cabin air from the interior cabin of the AV to cool the cooling fluid, and a main radiator to receive the cooling fluid and pump outside air to further cool the cooling fluid. Additionally, the thermal reduction system can include a secondary cooling unit that includes a condenser, evaporator, and compressor pump to further cool the cooling fluid.

Abstract: There is provided a saddle-ridden type vehicle. An oil cooler cools engine oil to be supplied to an engine. A supercharger compresses combustion air to be supplied to the engine. A water pump pumps cooling water to the engine and the supercharger. A cooling piping flows the cooling water delivered from the water pump. A first inlet piping supplies the cooling water to the oil cooler. A second inlet piping is disposed in parallel with the first inlet piping and supplies the cooling water to the supercharger. A first outlet piping extends upward from the oil cooler and returns the cooling water to the water pump. A second outlet piping extends upward from the supercharger and returns the cooling water to the water pump. The first outlet piping and the second outlet piping converge above the oil cooler and the supercharger.

Abstract: A cooling control system for an internal combustion engine, which is capable of circulating engine coolant while suppressing power consumption by an engine coolant pump as much as possible. The cooling control system is provided for cooling intake gases increased in temperature by being pressurized by a supercharger. The engine coolant pump of the electrically-driven type delivers engine coolant to thereby cause the same to circulate. An ECU controls, when a difference between the temperature of the engine coolant and a first target temperature is not larger than a first predetermined value, the amount of the engine coolant to be delivered to a predetermined minimum flow rate, and controls, when the difference is larger than the first predetermined value, the amount of the engine coolant to be delivered such that it becomes larger as the difference is larger.

Abstract: A cooling apparatus comprises a first cooling conduit branching off from a downstream side connection conduit to cool the cylinder head, a second cooling conduit branching off from the downstream side connection conduit, is provided in parallel with the first cooling conduit, an intermediate cooling conduit being connected to the first and second cooling conduits, is provided with an EGR cooler, a third cooling conduit running from a connection point of the intermediate cooling conduit and the first cooling conduit to an upstream side connection conduit, a fourth cooling conduit running from a connection point of the intermediate cooling conduit and the second cooling conduit to the upstream side connection conduit, and a changeover valve for adjusting the flow resistance of the second cooling conduit. And the direction of coolant flow in the intermediate cooling conduit is changed over by operating the changeover valve.

Abstract: A cogeneration system for generating electricity and process steam. The system includes an internal combustion engine having a shaft and a cooling system comprising a cooling fluid adapted to circulate through the engine and to cool the engine under conditions of nucleate boiling in which at least 10 percent of the coolant exits the engine in a vapor phase. It includes a vapor separator adapted to separate the coolant that exits the engine into a vapor phase coolant and a liquid phase coolant. The engine shaft drives an electric generator to provide electric power. A hot vapor line directs hot vapor exiting the vapor separator to a hot vapor process load. A coolant circulation pump is provided to force the cooling fluid through the engine, and a hot water line is provided to return hot water exiting the vapor separator to the coolant circulation pump.

Abstract: A supplemental thrust system for an airplane comprising a submerged inlet duct, a diffuser section in communication with the inlet duct, and a duct outlet in communication with the diffuser section, an outlet nozzle in communication with the duct outlet, a turbocharger unit comprising one or more turbocharges in communication with each other to provide compressed air to the engine and the cabin, a heat exchanger unit comprising a plurality of heat exchangers in the diffuser section to provide cooling liquid to cool pressurized air in the cabin, engine intake air and the engine jacket, where each turbocharger is coupled to the intake manifold of an engine to increase the power of the engine by introducing compressed air into the manifold.

Abstract: An internal combustion engine can include a piston moving in a cylinder and a junk head disposed opposite the piston head in the cylinder. The junk head can optionally be moveable between a higher compression ratio position closer to a top dead center of the piston and a lower compression ratio position further from the top dead center position of the piston. At least one intake port can deliver a fluid comprising inlet air to a combustion chamber within the cylinder. Combustion gases can be directed out of the combustion volume through at least one exhaust port. One or both of the intake port and the exhaust port can be opened and closed by operation of a sleeve valve that at least partially encircles the piston. Related articles, systems, and methods are described.

Abstract: A cylinder block (3) includes an inlet portion (36), a narrow portion (42), and an inclined portion (43). A cylinder head includes a head-side discharge portion. The inlet portion is formed on the first cylinder side of a cylinder array, and introduces coolant to a block-side water jacket (33). The narrow portion is formed in the vicinity of the inlet portion, and restricts the coolant introduced through the inlet portion from flowing to an intake-side channel (35) of the block-side water jacket. The inclined portion is formed in the vicinity of the inlet portion, and guides the coolant introduced through the inlet portion toward the head. The head-side discharge portion is formed on the fourth cylinder side of the cylinder array, and discharges the coolant from a head-side water jacket. A communication path for communicating between the water jackets is formed on the head side of the inclined portion.

Abstract: The present invention relates to an integrated cooling system for a vehicle. The system includes an engine cooling loop having a first fluid configured for circulation through an engine of the vehicle and a power electronics cooling loop having a second fluid configured for circulation through at least one power electronics component of the vehicle. The engine cooling loop is fluidly isolated from, and in thermal communication with, the power electronics cooling loop.

Abstract: A method of operating the thermal management system in a vehicle is provided, where the thermal management system includes a heat exchanger (e.g., a radiator) and a heat source (e.g., battery pack, drive train, power electronics, etc.). After characterizing the thermal management system, whenever the system controller issues a cooling demand an appropriate set of operating settings is determined that minimizes the amount of power consumed by the system's actuators (e.g., blower fan, coolant pump) while still meeting the cooling demand. As a result, the heat source is cooled to the degree required with a minimum expenditure of power, thereby minimizing the impact on driving range and vehicle performance.

Abstract: Disclosed are an apparatus for adjusting temperature of oil for a vehicle, and a method for controlling the apparatus. The apparatus includes an EGR valve installed on a fluid channel branching off from an exhaust pipe, a complex heat exchanger structured to transfer exhaust gas having passed through the EGR valve to an engine intake pipe via an EGR cooling path in which the exhaust gas having passed through the EGR valve performs heat exchange with coolant, an oil heating path in which the exhaust gas having passed through the EGR valve performs heat exchange with oil, and a bypass path in which the exhaust gas having passed through the EGR valve does not perform heat exchange, an NOx sensor installed in the exhaust pipe, and a controller that controls the complex heat exchanger in response to a signal from the NOx sensor.

Abstract: A cooling system (1) for a fuel cell system (11), in particular for a vehicle, which comprises a fuel cell cooling circuit (10) for cooling the fuel cell system (11), and a battery cooling circuit (20) for cooling a battery (21), with an exchange of thermal energy between the fuel cell cooling circuit (10) and the battery cooling circuit (20).

Abstract: A coolant circulation system for an engine efficiently cools the engine to prevent the capacity of an electronic water pump from being excessively increased. The system includes: a water pump; a cylinder block; a cylinder head; an intake block water jacket formed on one side of the cylinder block; an exhaust block water jacket formed on another side of the cylinder block; an intake side chamber provided on one surface of the cylinder block in a length direction of the engine about which a plurality of cylinders are arranged in parallel; an exhaust side chamber provided on the other surface of the cylinder block; and a head water jacket formed in the cylinder head to allow the intake block water jacket and the exhaust block water jacket to communicate with each other and the intake side chamber and the exhaust side chamber to communicate with each other.

Abstract: An intake system for an engine includes an intake manifold having a surge tank room and branch passages, and a water-cooling type cooler having a first cooling unit and second cooling units. The surge tank room is disposed on a downstream side of a supercharger in a flow direction of intake air. Supercharged intake air flowing into the surge tank room is distributed among intake ports respectively through the branch passages. The first cooling unit is inserted in the surge tank room, and cools supercharged intake air which has flowed into the intake manifold through heat exchange between supercharged intake air and coolant flowing in the first cooling unit. The second cooling units are inserted respectively in the intake ports, and cool internal EGR gas, which has been recirculated into their corresponding intake ports, through heat exchange between internal EGR gas and coolant flowing in the second cooling units.

Abstract: The present disclosure relates to a multiple zone vehicle radiator, including: a housing; a first zone included in the housing; a second zone included in the housing; a baffle between the first and second zone, located in an outlet manifold of the housing; and a zone modifier configured to regulate coolant distribution between the first zone and second zone according to predetermined conditions.

Abstract: A cylinder head having a thread for an ignition device, in particular a spark plug, and a cooling circuit having at least one cooling cavity, wherein the cylinder head can be cooled in operation by conveying cooling medium through the cooling circuit, wherein provided in the cooling circuit is a further cooling cavity having an inside wall and an inlet opening disposed substantially in opposite relationship to the inside wall, and a cooling medium flow entering through the inlet opening can be so deflected by the inside wall that the cooling medium flow passes at least partially around the thread.

Abstract: A cooling circuit, in particular of a motor is provided that includes a drive unit with a cooling circuit, through which coolant heated in the drive unit flows, a first heat exchanger which emits heat from the coolant to the environment and a device for energy recovery with a second heat exchanger, which is switched into the cooling circuit. A line section of the cooling circuit is connectable in parallel to the second heat exchanger that includes a hydraulic element, which guides a defined coolant flow to the second heat exchanger.

Abstract: A powertrain cooling system includes a coolant pump and coolant flow passages. A first three-position valve is operatively connected with an outlet of the coolant pump and has a first, a second, and a third position to at least partially establish different coolant flow modes through the coolant flow passages. Coolant flow from the coolant pump is blocked from both the cylinder head and the engine block in a first coolant flow mode when the three-position valve is in the first position. Coolant flow from the coolant pump is provided to the cylinder head and is blocked from the engine block in a second coolant flow mode when the three-position valve is in the second position. Coolant flows from the coolant pump to the engine block and from the engine block to the cylinder head in a third coolant flow mode when the three-position valve is in the third position.

Abstract: An engine system may include a thermostat casing connected to a first, second, third, and fourth flow channels, a valve guide in which a main valve that opens and closes the first flow channel is formed at one side, a closing valve that opens and closes the second flow channel is formed at the other side, and a bypass valve is formed adjacent to the closing valve, an elastic member that elastically supports the valve guide to enable the main valve to block the first flow channel and the closing valve to block the second flow channel, a driver that moves the valve guide so that the main valve opens the first flow channel and the closing valve opens the second flow channel according to a temperature of a coolant, and a control unit that controls the temperature and a flow of the coolant by controlling the driver.

Abstract: An integrated heat management system may include an engine system circulation line around an engine and a transmission circulation line around an automatic transmission. The engine system circulation line and the transmission circulation line may be integrated by a control valve having a plurality of input and output ports. The integrated heat management system controls opening and closing of the control valve in accordance with engine cooling water temperature and automatic transmission fluid (ATF) temperature, which may be changed after engine start-up, and implements a variety of modes for varying an engine cooling water flow. Therefore, the integrated heat manage system shortens an engine warm-up time, prevents a bad effect in a low-temperature state due to a fast temperature increase of the ATF, and satisfies performance required by a vehicle of which the fuel-efficiency may be improved and the efficiency may be increased in a high oil price environment.

Abstract: A hybrid cooling system for an engine is provided. The system comprises a block oil cooling circuit, a head coolant cooling circuit, the head and block circuits having a common heat exchanger. The system also includes a flow device in the head cooling circuit for preventing coolant flow in the head cooling circuit at least during a first phase of a warm-up phase of the internal combustion engine, a delivery device in the block cooling circuit which delivers engine oil constantly under pressure through the block cooling circuit to bearing points in a cylinder block and to bearing points in a cylinder head, and a control element arranged in a control line to reduce the delivery capacity of the delivery device through the block cooling circuit at least during the first phase of the warm-up phase. In this way, heat transfer in the common heat exchanger may be substantially prevented.

Abstract: A cooling system of a vehicle may include a high and low temperature radiators that cool a high and low temperature coolants respectively circulating an engine and passing a water cooled intercooler and a low exhaust gas recirculation cooler of a turbo charger, a cooling fan that blows air to the high temperature radiator and the low temperature radiator, a high temperature coolant pump that pumps the high temperature coolant, a low temperature coolant pump that pumps the low temperature coolant, and a control portion that controls the high temperature coolant pump, the low temperature coolant pump, and the cooling fan according to driving conditions of the vehicle and environmental conditions. A controlling method may include detecting driving conditions of the vehicle and environmental conditions, setting an operating target for the cooling system and/or a lubrication system, and determining operating conditions for the cooling system and/or the lubrication system.

Abstract: A coolant circulation system for an engine efficiently cools the engine to prevent the capacity of an electronic water pump from being excessively increased. The system includes: a water pump; a cylinder block; a cylinder head; an intake block water jacket formed on one side of the cylinder block; an exhaust block water jacket formed on another side of the cylinder block; an intake side chamber provided on one surface of the cylinder block in a length direction of the engine about which a plurality of cylinders are arranged in parallel; an exhaust side chamber provided on the other surface of the cylinder block; and a head water jacket formed in the cylinder head to allow the intake block water jacket and the exhaust block water jacket to communicate with each other and the intake side chamber and the exhaust side chamber to communicate with each other.