Abstract: Systems and a method are provided for determining a change in performance of a radiator fan. In one example, a system includes a controller configured to receive a signal output from an accelerometer positioned proximately to and/or operatively coupled with a bearing of a radiator fan, process the signal to determine a peak to peak acceleration value, and indicate a change in performance of the radiator fan when the peak to peak acceleration value is greater than a designated threshold value.

Abstract: A coolant jacket is provided for a liquid-cooled cylinder head for an internal combustion engine having a crankcase. The cylinder head has a gas exchange intake side having two gas exchange intake valves and a gas exchange exhaust side having two gas exchange exhaust valves. A fuel injection valve is provided on the intake side and an ignition device is provided on the exhaust side between the gas exchange valves. The coolant jacket extends as a first partial coolant jacket on the exhaust side, coming from the crankcase, between the gas exchange exhaust valves and then radially outside around the ignition device and the fuel injection valve and further in the direction of the intake side and the crankcase. Optimal cooling of the ignition device and the fuel injection valve is achieved which enables high specific powers and pressures leading to fuel consumption and cost advantages.

Abstract: Disclosed is a cooler arrangement for cooling a cylinder of a combustion engine. The cylinder has a cylinder head and a cylinder liner. The arrangement comprises a cooling circuit with a first flow passage which leads coolant through a lower part of the cylinder head, a second flow passage which leads coolant through an upper part of the cylinder head, and a third flow passage which leads coolant through an upper part of the cylinder liner. The cooling circuit is adapted to initially leading coolant through the first flow passage before it is led in parallel through the second flow passage and the third flow passage.

Abstract: Disclosed is a transportation container blower for mortality prevention and welfare during livestock transportation, comprising: a body connected to a transportation means and having a space in which livestock is accommodated therein and a first blowing port formed at each of lower portions of both sides thereof to be opened; a blowing path installed at an upper end of the body to be long in a longitudinal direction thereof and having a second blowing port which is in communication with an inside of the body and formed at a lower end or a side surface thereof; and a blowing means installed at the body and connected to the blowing path.

Abstract: Methods and systems for operating an engine with an electrically driven compressor are described. In one example, a model in a controller determines one or more temperatures of the electrically driven compressor to establish a power output upper threshold that is not to be exceeded by the electrically driven compressor. Various actuators may be adjusted responsive to the power output upper threshold to reduce the possibility of electrically driven compressor degradation.

Abstract: A fuel injection valve includes: a nozzle body portion; a valve body; and a valve seat. The valve body and the valve seat define a fuel space which is shielded from the fuel injection hole and is supplied with the fuel in a case where the valve body is in a state of being seated on a valve seat portion. The fuel space includes at least a space between a side surface of the valve body and a surface forming an accommodation space of the valve seat. The valve body and the valve seat are configured to cause the fuel space and the fuel injection bole to communicate with each other in a case where the valve body is in a state of being separated from the valve seat portion. A light irradiation portion is disposed at a position where the fuel space is irradiated with transmitted light.

Abstract: An RDU fluid injector includes a fluid inlet and a fluid outlet; a fluid path; an actuator unit including a pole piece, a movable armature and a coil; a valve assembly including a valve seat and a seal member connected to the armature and engageable with the valve seat; and a volume reduction member upstream of the actuator unit. The volume reduction member includes a throughbore partly defining the fluid path. The actuator unit, the valve assembly and the volume reduction member are disposed in one or more body portions of the injector, wherein each of the actuator unit, the valve assembly, the volume reduction member and the one or more body portions includes one or more components of the fluid injector. A ratio of a volume of the fluid path to a volume of the components of the fluid injector is between 0.08 and 0.30.

Abstract: The present disclosure relates to a transmission system having a transmission subsystem, a transmission housing for housing the transmission subsystem, and a rotor operably associated with the transmission subsystem. The rotor has a weight and dimension to act as a flywheel. At least one stator pole segment is housed within the transmission housing and has at least one stator winding thereon positioned in proximity to a surface of the rotor. An inverter communicates with the stator winding and electrically energizes the winding to cause rotation of the rotor.

Abstract: Technology is provided for a fuel injector mounting system for mounting an injector to an engine cylinder liner. The system includes an injector adapter having an adapter body including a first end portion threaded for engagement with a cylinder liner and an injector port formed in the adapter body opposite the first end portion. The injector port includes a plurality of concentric bores configured to receive the proximal end portion of an injector. A flange extends transversely from the adapter body and a collar engages a portion of the injector and connects to the flange to retain the injector in the adapter. A transverse passageway extends through a sidewall of the adapter body and intersects the injector port and an annular fitting is disposed on the injector adapter for fluid communication with the transverse passageway. An injector support bracket attaches a distal end portion of the injector to the engine.

Abstract: A cooling device for an internal combustion engine includes a pump portion, a circulation water passage, a thermostat configured to switch between a state where the coolant is circulated to a heat exchange water passage on which a radiator is disposed and a state where the coolant is not circulated to the heat exchange water passage, and a control unit configured to control the pump portion. The control unit is configured to control a three-way valve such that a first pump and a second pump are connected in parallel when the thermostat switches to the state where the coolant is circulated to the heat exchange water passage and controls the three-way valve such that the first pump and the second pump are connected in series when the thermostat switches to the state where the coolant is not circulated to the heat exchange water passage.

Abstract: A vehicle with a turbocharged engine, including an engine body, an intake passage, an exhaust passage, a turbocharger, and a radiator. The radiator is provided with a cooling unit for cooling an engine coolant, and an upper tank into which the coolant is introduced after cooling the engine body. The turbocharger is provided with a turbine provided to the exhaust passage, a compressor provided to the intake passage, a coupling shaft coupling the turbine to the compressor, and bearings supporting the coupling shaft. The turbine is provided with an impeller for being rotated by introduced exhaust gas, and a turbine casing. The turbocharger is oil-cooled, and cooled by a lubricant. The turbine casing is formed from a sheet metal. The coupling shaft extends horizontally, and a height of an axial center of the shaft is above a height of an upper end of the upper tank of the radiator.

Abstract: A cylinder head in an internal combustion engine includes a cylinder head main body in which a plurality of combustion chambers is arranged and a pipe member that extends along a direction in which the combustion chambers are arranged, through which a refrigerant flows, and which is embedded in the cylinder head main body. The pipe member is provided with a curved portion that is curved and the curved portion is provided with a throttle region in which a sectional area is partially reduced.

Abstract: Systems and methods are disclosed for determining a temperature of a coolant in a cooling system for an engine and diagnosing a thermostat in the engine responsive to the determined temperature. The system and method includes interpreting engine heat data indicative of a first amount of heat introduced into the internal combustion engine; interpreting exhaust gas recirculation (EGR) heat data indicative of a second amount of heat introduced into the internal combustion engine via the amount of exhaust gas provided to the intake manifold; interpreting heat loss data indicative of an amount of heat loss experienced by the coolant; determining a temperature of the coolant based on the first amount of heat, the second amount of heat, and the amount of heat loss; comparing the determined temperature of the coolant to a sensed temperature of the coolant; and determining a status of the thermostat responsive to the comparison.

Abstract: A work vehicle includes a hood, an engine, a radiator, an air cleaner, and a condenser. The hood covers an engine compartment located on a front portion of a traveling body. The engine is a drive source. The radiator supplies a coolant to the engine. The air cleaner takes in outside air and supplies the air to the engine. The condenser cools a refrigerant. In front of the radiator, the air cleaner and the condenser are disposed one above the other. The condenser is withdrawable in the left and right direction.

Abstract: An engine cooling apparatus includes a mechanical water pump having a suction hole and N discharge holes (N is an integer not less than two), N water jackets that are arranged in an engine and correspond to the N discharge holes, N joint passages, each of which joins one of the N discharge holes to the associated water jacket, a return passage that returns coolant to the suction hole after the coolant has passed through the N water jackets and has merged in a merging portion, a coolant stopping mechanism that blocks return flow of coolant through the return passage, and N communication passages each of which allows the corresponding one of the N joint passages to communicate with the suction hole while bypassing the N water jackets and the coolant stopping mechanism.

Abstract: A heat management system is provided for an automotive system having a plurality of heat manageable components. The heat management system includes a plurality of heat transferring path having a plurality of heat pipes, and a heat exchanger for each of the heat manageable component of the automotive system. The heat pipes are configured to transfer heat from at least one of the heat exchanger to another heat exchanger.

Abstract: A powertrain includes an engine, an exhaust system including an exhaust passageway in fluid communication with the engine, an exhaust gas heat exchanger, a transmission having a transmission cooling system, a transmission heat exchanger, a heater core, a pump, and an engine coolant circuit. The engine coolant circuit provides fluid communication between the engine, the exhaust gas heat exchanger, the transmission heat exchanger, the heater core, and the pump. The exhaust gas heat exchanger is operatively connected to the exhaust system and configured to transfer heat between the engine coolant circuit and the exhaust system. The transmission heat exchanger is operatively connected to the transmission cooling system and configured to transfer heat between the engine coolant circuit and the transmission cooling system.

Abstract: An engine assembly and method of distributing coolant in an engine assembly. A cylinder block includes one or more pairs of cylinder block openings disposed therein. Each pair of cylinder block openings include two cylinder block openings, each configured to house a piston. A cylinder head in fluid communication with the one or more pairs of cylinder block openings. A coolant manifold includes coolant flow passages, each in fluid communication with a coolant flow inlet disposed in the cylinder block between the two cylinder block openings in each pair of cylinder block openings. Fluid from each coolant flow inlet diverges into two coolant flow passages, each extending about a peripheral portion of a respective cylinder block opening. Each coolant flow passage extends from the peripheral portion of the respective cylinder block opening into one or more outlets from the engine block and into the cylinder head.

Abstract: Provided is a thermostat monitor (36) comprising a thermostat open failure detecting part (38) for detecting an open failure of a thermostat when a condition is such that a radiator heat radiation amount (14) radiated from a radiator on a radiator-side cooling water channel is larger than a heater core heat radiation amount (12) radiated from a heater core on a heater core-side cooling water channel, and that a difference between the radiator heat radiation amount and the heater core heat radiation amount is equal to or more than a predetermined value A. Based on a temperature of engine cooling water detected by a temperature sensor positioned in the vicinity of an outlet of an in-engine cooling water channel, it is possible to detect the open failure of the thermostat relatively easily with certainty.

Abstract: A number of variations may include a product including a rotor comprising a shaft having a rotation axis, a bearing at least partially surrounding the shaft allowing for rotation of the shaft within the bearing about the rotation axis, and a bearing housing comprising at least one fluid outlet passage constructed and arranged to flow fluid upward from the bearing to a top side of the bearing housing.

Abstract: A system and method of detecting the presence of fuel vapor gases within a fuel supply module tank. The system includes a lift pump for filling the fuel supply module reservoir with liquid fuel from the main fuel tank. The fuel supply module reservoir may include a certain amount of fuel vapor and air, which is detected by a pressure sensor. If a resting pressure is detected, a control module runs the lift pump to pump liquid fuel into the fuel supply module reservoir and purges the vapor and air from the reservoir.

Abstract: An engine temperature control system is provided for heating and/or cooling engine fluids to resist deviation of the temperature of these fluids from a temperature range wherein optimal fluid performance is achieved. Some examples of the temperature control system provide for preheating fluids such as coolant, lubricant, or diesel exhaust fluid prior to starting the engine. Other examples of the temperature control system provide for improved cooling of lubricants utilized for high heat generating components such as turbochargers, continuing cooling of these fluids after the engine is stopped.

Abstract: A cup is in a bottomed tubular shape to receive an injector along an injector axis. A bracket is extended from a sidewall of the cup. The bracket includes at least one arm and a body. The at least one arm connects the body with the cup. The body forms a screw opening configured to receive a screw along a screw axis. The body has a pivot end on an opposite side of the screw axis from the injector axis.

Abstract: The invention relates to various ways in which to integrate control valves into the structure of a heat exchanger. The present disclosure relates to a heat exchanger assembly that includes a heat exchanger and a valve integration unit. The heat exchanger includes a plurality of alternating first and second fluid passages in heat exchange relation, and at least one inlet manifold and one outlet manifold interconnected by one of the plurality of first or second fluid passages. The valve integration unit is fixedly attached to heat exchanger and includes a fluid passage in fluid communication with at least one of the inlet and outlet manifolds. A valve mechanism is mounted within the valve integration unit in fluid communication with the fluid passage, the valve mechanism controlling the flow of a heat exchange fluid through said fluid passage.

Abstract: A fuel pump coolant assembly includes a fuel pump cap having a flanged bottom surface and a fuel pump support structure. A fuel cooling ring disposed between the fuel pump cap and the fuel pump support structure, wherein a sealed coolant cavity is formed by a portion of an external surface of the fuel pump support structure and an internal surface of the fuel cooling ring.

Abstract: A fuel supply device for a liquefied petroleum direct injection (LPDI) engine in which liquefied petroleum gas (LPG) is directly injected into a combustion chamber and a start control method of an LPDI engine having the fuel supply device, wherein the high pressure fuel pump receives and compresses fuel to a pressure higher than a pressure at which fuel has been supplied, wherein the high pressure fuel rail buffers and supplies fuel to a direct injector that injects fuel directly into a combustion chamber, wherein the return line is connected to the supply line through the high pressure fuel pump to form a low pressure line, allowing a surplus portion of fuel supplied to the high pressure fuel pump from the fuel tank to return to the fuel tank, and wherein a first valve is disposed on the return line to control the flow rate of returning fuel.

Abstract: An auxiliary heating system comprising interconnected piping which forms a closed fluid flow circuit for permitting a passage of coolant therein, and having formed chamber openings along a length thereof to receive at least one heating element which projects into the closed fluid flow circuit to be in direct contact with, and heat, the coolant. A pump is provided for circulating the coolant, along with a flow switch for monitoring flow of the coolant through the closed fluid flow circuit, wherein if the flow has ceased through the closed fluid flow circuit, the flow switch instructs the system to deactivate the heating elements.

Abstract: A cooling structure (1) for a cylinder head (2) of an internal combustion engine includes a lower first cooling jacket (12) adjacent to a fire deck (13) and an upper second cooling jacket (14) adjacent to an intermediate deck (15), the first and second cooling jackets (12, 14) being flow connected by at least one transfer opening (27, 31) of the intermediate deck (15), the first cooling jacket (3) including at least one center cooling chamber (17) and an outer cooling chamber arrangement with at least one first outer cooling chamber (16), the outer cooling chamber (16) and the center cooling chamber (17) being flow connected by at least one exhaust side first radial passage (19) extending in a region of the exhaust valve bridge (8) and by at least one second radial passage (20, 21), the first radial passage (19) and the second radial passage (20, 21) being streamed hydraulically in parallel.

Abstract: A fan system including a volute, a wind wheel, a motor, and a motor controller. The motor controller includes a control box including a plurality of fins for dissipating heat of the motor controller, and controls the operation of the motor to drive the wind wheel. The wind wheel is adapted to suck ambient air to form an air flow which passes through the plurality of fins.

Abstract: A fuel module apparatus is for a marine engine. The fuel module apparatus includes a housing having a fuel cavity and a fuel pump in the housing. The fuel pump is configured to pump fuel through the fuel cavity from an inlet on the housing to an outlet on the housing. A cooling fluid sprayer sprays cooling fluid onto an outer surface of the housing to thereby cool the housing and the fuel in the fuel cavity.

Abstract: An insert for a cylinder head of an internal combustion engine that has a bore for receiving a fuel injector to deliver fuel through an injector nozzle into a combustion chamber. The insert comprises a generally tubular body having a longitudinally oriented passageway therethrough and receivable within the bore in the cylinder head. The generally tubular body has an inner end and an outer end, with the inner end in proximity to the combustion chamber when said insert is received within the bore. The passageway is tapered such that its diameter increases from the inner end toward the outer end. The longitudinal passageway is dimensioned to sealingly receive the nozzle of the fuel injector when the fuel injector is received within the bore. The insert limits blow-by between the insert and the nozzle of the fuel injector during operation of the internal combustion engine.

Abstract: A coolant circuit is provided for an internal combustion engine having a compression machine for intake air. The coolant circuit includes a high-temperature circuit and a low temperature circuit. The high-temperature circuit is provided in order to cool the internal combustion engine by way of a coolant radiator and a first coolant pump arranged in the high-temperature circuit. The low-temperature circuit is provided with a second coolant pump in order to cool the intake air compressed by the compression machine by way of an intercooler and in order to cool a coolant of a coolant circuit in a condenser. The high-temperature circuit and the low-temperature circuit are cooling circuits which are separated from each other. The thermal base load of the low-temperature circuit is reduced by this design, whereby the pressure level in the coolant circuit can be reduced resulting positively in a reduction of the energy consumption.

Abstract: A cooling jacket is formed at least in part within the cylinder head mounted on an engine block defining one or more piston cylinders and one or more intake and exhaust ports in communication with each piston cylinder. The cooling jacket includes a first passageway, a second passageway and a turbulence chamber. The first passageway extends from a first flow passage and intersects the turbulence chamber at a first angular position, and the second passageway extends from a second flow passage and intersects the turbulence chamber at a second angular position different from the first angular position. A swirling action is imparted to fluid media passing through the turbulence chamber.

Abstract: A fuel injector assembly for an engine system includes a fuel pressurization mechanism, a fuel injector, and a flow-directing sleeve positioned about the fuel injector and including sealing surfaces for sealing with a cylinder head and with an injector body. Slots are formed at least in part in the sealing surfaces to direct fuel from the cylinder head into an incoming cooling passage extending to the fuel pressurization mechanism, and from an outgoing cooling fuel passage into the cylinder head.

Abstract: The campfire starter includes a first compartment that is connected to a flexible conduit that extends there from. The flexible conduit includes an igniter nozzle on a distal end, which dispenses a flame there from, and which is adapted to ignite a campfire. The first compartment is adapted to be handled, and from which the flexible conduit extends in order to position the igniter nozzle immediately adjacent the campfire. The flexible conduit is of an undefined length, and is made of a flexible material that enables curves and bends to be formed and adjusted as needed.

Abstract: A cooling system may include an intercooler configured to heat-exchange a coolant and air, a radiator configured to cool a coolant heated in an engine through heat-exchange with air, a low temperature radiator configured to cool the coolant of the intercooler, a thermostat selectively fluid-connected to the radiator or the intercooler to supply the coolant from the radiator or the intercooler to the engine, a first control valve configured to selectively supply the coolant which has passed through the intercooler to the radiator, a second control valve configured to selectively supply the coolant which has passed through the engine to the intercooler or the first control valve, and a controller configured to control operations of the thermostat, the first control valve, and the second control valve according to a temperature of the coolant of the engine and a temperature of intake air.

Abstract: The invention relates to various ways in which to integrate control valves into the structure of a heat exchanger. Accordingly, there is provided a heat exchanger assembly comprising a heat exchanger and a valve integration unit. The heat exchanger includes a plurality of alternating first and second fluid passages in heat exchange relation, and at least one inlet manifold and one outlet manifold interconnected by one of the plurality of first or second fluid passages, the valve integration unit being fixedly attached to heat exchanger and comprising a fluid passage in fluid communication with at least one of the inlet and outlet manifolds. A valve mechanism is mounted within the valve integration unit in fluid communication with the fluid passage, the valve mechanism controlling the flow of a heat exchange fluid through said fluid passage.

Abstract: Methods and systems are provided for cleaning a water-cooled charge-air cooler. In one example, a method may include condensing water present in the supplied charge-air and exhaust gas which may exist in gaseous and droplet form, and purging the condensate along with the exhaust gas. A system for carrying out the above mentioned method is also provided.

Abstract: A power electronics arrangement has a power semiconductor module, with a contact spring, with a load connecting element and with a mounting device which is embodied as part of an electrically operated vehicle. The power semiconductor module has a load connection element which preferably projects outwards from the interior of the power semiconductor module, and preferably has there a first external contact face for external connection, and the load-connecting element has a second contact face. An electrically conductive pressure contact connection is embodied between the first contact face and the second contact face by a contact spring, wherein the pressure on the contact spring which is necessary for this is implemented by connecting the power semiconductor module in a frictionally locking fashion to the mounting device.

Abstract: Control of alternator/starters for providing electrical power to a vehicle and rotating an engine is disclosed. In one example, the alternator/starter provides a differential action whereby torque on an input side of the alternator may be maintained while speed of an output side of the alternator may be varied. The alternator/starter includes two armature windings and two field windings.

Abstract: A rotating electric machine system includes: a rotating electric machine including a stator and a rotor arranged with a gap to the stator; a casing configured to hold the stator; an electric power conversion apparatus held by the casing, and configured to drive the rotating electric machine; and a first cooling flow path arranged in a portion of the casing between the stator and the electric power conversion apparatus, via which cooling medium is caused to flow so as to cool the stator and the electric power conversion apparatus. And; the electric power conversion apparatus comprises a power module configured to include a power semiconductor element therein; the power module comprises a heat radiation fin; and the heat radiation fin is arranged to protrude toward a cooling medium side via an opening formed between the power module and the first cooling flow path.

Abstract: A method is disclosed for optimizing fuel economy during an engine warm up phase of operation of an internal combustion engine. An exhaust manifold may have a coolant jacket through which a coolant may flow. A temperature of the coolant in the exhaust manifold may be determined to detect when it is at a predetermined maximum threshold, which represents a temperature threshold just below a temperature at which the coolant will begin to boil. When this threshold is reached, then a determination may be made as to a minimum rate of flow of the coolant through the exhaust manifold which maintains the coolant at about the predetermined maximum threshold, and the coolant may be flowed through the exhaust manifold at the determined minimum rate of flow.

Abstract: A thermostatic bypass valve functions to regulate fluid temperature and also to act as a pressure relief valve using a single valve bore. The poppet valve includes a cylinder with a chamber that is thermally immersed in a source passageway such that the valve state is determined by the temperature of the fluid flowing through the source passageway as opposed to the fluid flowing through a return passageway. When the fluid in the source passageway is hot, a poppet is forced against the return passageway side of a valve seat. The poppet may either be rigidly attached to the cylinder or may slide with respect to the cylinder and be forced against the valve seat by a spring. A piston may either be rigidly attached to the housing or may be forced toward the valve seat by a spring.

Abstract: A combined pump-injector valve system utilizing a monolithic body to provide the barrel of the pump and as the stator of the valve, thus eliminating any need for connections between a pump and a valve, and therefore the potential for high-pressure leaks or pressure reductions. The combined pump-injector valve permits injection of nanoliter-sized samples into a chromatographic column, which is sealed during loading of the sample and filling of the pump, such that complete analyses can be completed with microliters of mobile phase with nanoliters of a sample. The pump-injector valve system further includes a pressure sensor external the barrel of the pump and may include an interim position intermediate loading and injection where the contents of the barrel may be pressurized to a desired pressure.

Abstract: A fuel system for an internal combustion engine includes an electric fuel pump; a conduit which defines a flow path through which fuel flows from the electric fuel pump to the internal combustion engine; a fuel pump control module with electronics which drive the electric fuel pump, the fuel pump control module being disposed within a compartment defined by a wall; and a heat sink in thermal contact with the fuel pump control module and extending out of the compartment through an aperture of the wall and into the flow path such that the heat sink is sealed to the wall, thereby preventing fluid communication through the aperture.

Abstract: The controller for an actuator that is driven by a brushless motor estimates the temperature of the magnet in the brushless motor on the basis of an electric current value and a rotation speed thereof which are obtained by supplying power to rotate the brushless motor in a reverse direction, and limits current flowing through the brushless motor during forward rotation so as to prevent the magnet temperature from rising beyond an allowable maximum temperature. Limiting the current flowing through the brushless motor on the basis of the estimated magnet temperature makes it possible to drive the brushless motor while preventing the magnet temperature from rising beyond the allowable maximum temperature without providing the brushless motor with any temperature sensor for detecting the magnet temperature therein.

Abstract: An air flow guide/diverter is disclosed for mounting to a cylinder head of an internal combustion engine. The air diverter directs cooling air to multiple locations on the cylinder head. The air diverter includes a main diverter shield having a proximal end extending from a cooling source to a distal end extending to the rear of the internal combustion engine. The air diverter includes a first arcuate member attached to the main diverter shield between the proximal end and the distal end of the main diverter shield, and a second arcuate member connected to the main diverter shield near the distal end of the main diverter shield. The air flow guide creates multiple channels of air to provide more efficient cooling with little added cost.

Abstract: An engine assembly includes a cylinder block having at least one cylinder. The engine assembly includes at least one cylinder head coupled to the cylinder block, and at least one intake port coupled to the cylinder head, at least one exhaust port coupled to the cylinder head, and at least one fuel injector coupled to the cylinder head. The engine assembly includes a head cooling extension protruding from the cylinder head. The head cooling extension includes at least one extension wall and defines an extension cooling passageway at least partially enclosed by the at least one extension wall. The extension cooling passageway is at least partly disposed between the exhaust port and the fuel injector in order to create a thermal barrier between the fuel injector and the exhaust port when the coolant flows through the extension cooling passageway.

Abstract: A vehicle engine cooling system may include a high temperature radiator in which a high temperature coolant for cooling an engine by using ambient air flows, a low temperature radiator in which a low temperature coolant for cooling a water-cooled condenser by using ambient air flows, an integrated cooler configured to cool a low pressure EGR gas and air which has passed through a turbocharger, a high temperature radiator circulation line provided to allow the high temperature coolant to circulate the high temperature radiator, the engine, and the integrated cooler, a low temperature radiator circulation line provided to allow the low temperature coolant to circulate the low temperature radiator, the condenser, and the integrated cooler, and a plurality of control valves provided on the high temperature radiator circulation line and the low temperature radiator circulation line.

Abstract: An integrated exhaust gas recirculation (EGR) valve housing includes: a temperature control passage configured to include a first cooling channel which connects a water jacket formed in an engine to a radiator and a second cooling channel which is branched from the first cooling channel and extends to an EGR cooler cooling re-circulated exhaust gas; and an auxiliary cooling passage configured to guide cooling water introduced into the second cooling channel to the EGR valve housing, whereby it is possible to easily dispose the EGR valve housing in the engine compartment by integrating the parts through which the cooling water is discharged from the engine with the cooling water channel connected to the EGR valve housing.