Abstract: An intake manifold for an engine is arranged between a cylinder head port mounted on a cylinder head and a surge tank. The intake manifold includes: a first runner including a first end provided with a first inlet portion connected to the surge tank, and a second end that is branched at a position spaced apart from the first inlet portion by a predetermined distance and is respectively connected to first and fourth runners formed in the cylinder head port; and a second runner including a second end provided with a second inlet portion connected to the surge tank at a position adjacent to the first inlet portion, and a second end that is branched at a position spaced apart from the second inlet portion by a predetermined distance and is respectively connected to second and third runners formed in the cylinder head port.

Abstract: An intake manifold for an engine is arranged between a cylinder head port mounted on a cylinder head and a surge tank. The intake manifold includes: a first runner including a first end provided with a first inlet portion connected to the surge tank, and a second end that is branched at a position spaced apart from the first inlet portion by a predetermined distance and is respectively connected to first and fourth runners formed in the cylinder head port; and a second runner including a second end provided with a second inlet portion connected to the surge tank at a position adjacent to the first inlet portion, and a second end that is branched at a position spaced apart from the second inlet portion by a predetermined distance and is respectively connected to second and third runners formed in the cylinder head port.

Abstract: A structure is mounted in a water jacket for a cylinder block of an engine. The structure includes a body forming a housing mounting portion including a panel formed in an arc shape so as to have inner and outer curved surfaces to be surrounded by a block bore. A pad-housing is formed in a plate shape to have curved surfaces with a curvature equal to the inner and outer curved surfaces of the housing mounting portion. The pad-housing is inserted into a housing mounting hole and is formed in a shape to correspond with the housing mounting hole. A pad is formed in a shape to correspond with a pad mounting hole which is bored through the pad-housing through. The pad has a curved surface and is inserted into the pad mounting hole to achieve water tightness.

Abstract: An engine cooling system includes: an engine system including an engine having a plurality of combustion chambers that generate a driving force by combustion of fuel; a power electronics (PE) device that assists engine torque of the engine system in accordance with a driving state of the vehicle; a main radiator connected to the engine system by an engine coolant line and discharging heat generated in the engine system by engine coolant flowing in the engine coolant line, a sub-radiator connected to the PE device through a PE coolant line and discharging heat generated in the PE device by PE coolant flowing in the PE coolant line; a 2-way valve connecting the engine coolant line and the PE coolant line to each other; and a controller for controlling opening and closing of the 2-way valve according to a temperature of the engine coolant and a vehicle driving condition.

Abstract: A structure is mounted in a water jacket for a cylinder block of an engine so as to surround a block bore. The structure includes a body forming a pad mounting portion being a panel formed in an arc shape to have inner and outer curved surfaces that are surrounded by the block bore. A mounting hole is extended through the inner and outer curved surfaces of the pad mounting portion. A pad is formed in a shape to correspond with the mounting hole. The pad has a curved surface and is inserted into the mounting hole in a water tight manner.

Abstract: An intake system of a vehicle includes: an intake manifold having a plurality of runners for supplying intake gas to a multiple-cylinder engine; a surge tank cover coupled to the intake manifold to define a surge tank communicating with the plurality of runners via the intake manifold; an intake air inlet formed on the intake manifold as a passage through which intake air flows into the surge tank; an intake outlet formed on the intake manifold as a passage through which intake air sequentially passing through the intake air inlet, the surge tank, and the plurality of runners, and is discharged to the engine as the intake gas; a gas inlet which is a passage formed on the intake manifold and selectively receiving recirculation exhaust gas; and a gas chamber formed on the intake manifold so that the recirculation exhaust gas flows in through the gas inlet.

Abstract: A condensate discharge device of an intercooler for a vehicle is provided to remove condensate collected inside an intercooler. The device includes an ejector hose that is disposed between an inlet tank and an outlet tank to form a flow path for an air flow between the inlet tank and the outlet tank. An ejector housing is disposed on one side of the outlet tank. The condensate collected in the outlet tank is introduced into the ejector housing. An ejector nozzle is disposed in the ejector housing and injects the air introduced from the ejector hose into an inner space of the outlet tank. When injecting the air, to inject the condensate, which is introduced from the outlet tank into the ejector housing, injecting the inner space of the outlet tank with the air.

Abstract: A heating, ventilation and air conditioning (HVAC) system of a vehicle includes: an indoor air conditioning circuit which produces to supply cooling air to a vehicle interior by heat-exchanging inflow air through an indoor air inlet or an outdoor air inlet with an evaporator, and which produces to supply warm air to the vehicle interior or to discharge to the outside of the vehicle interior by heat-exchanging inflow air with a heat exchanger. The heat exchanger is connected with an engine cooling circuit so that engine coolant is used as a heat source of the heat exchanger, thereby improving the cooling performance of the ERG cooler.

Abstract: An EGR (exhaust gas recirculation) cooler includes a cylinder block having a mounting space and having a coolant inlet in which a coolant can flow into the mounting space and a coolant outlet in which the coolant can be exhausted. A cover plate covers the mounting space and forms an exhaust inlet though which the exhaust gas can flow in and an exhaust outlet through which the exhaust gas can be exhausted. Tubes are mounted in the mounting space and through which the exhaust gas can flow. An inlet tank is mounted in the mounting space and is configured to distribute the exhaust gas flowing through the exhaust inlet of the cover plate to the tubes. An outlet tank is mounted in the mounting space and is configured to guide the exhaust gas exhausted from the tubes to the exhaust outlet of the cover plate.

Abstract: An intercooler cooling apparatus is provided. The apparatus cools an intercooler installed between a compressor of a turbocharger and an engine to adjust an oil temperature. The apparatus includes a water tank that surrounds a part of an outer side of the intercooler, in which cooling water discharged from the engine flows into a first side to exchange heat with the intercooler and the cooling water is discharged through a second side. An ATF warmer and an air conditioner refrigerant line are also installed in the water tank, in which oil of a transmission is circulated.

Abstract: An EGR cooler includes a tube assembly formed by stacking a plurality of tubes in which exhaust gas flows and a cover plate having a mounting portion formed concavely to mount the tube assembly thereon. A baffle is mounted at the tube assembly and adjusts flow of coolant inflow from a cylinder block. An inlet cover is installed on a first side of an outer surface of the cover plate to supply the exhaust gas to each tube and an outlet cover is installed on a second side of outer surface of the cover plate to exhaust the exhaust gas from each tube. At least one coolant passage in which the coolant flows is formed between the plurality of tubes.

Abstract: An exhaust gas recirculation (EGR) cooler includes: a cylinder block having a mounting space and having a cooling water inlet through which cooling water is introduced; at least one core assembly disposed in the mounting space and including an upper core and a lower core, wherein the upper core and the lower core are coupled to each other to have a flow path through which the exhaust gas flows; and a cover plate blocking the mounting space and having a cover inlet through which the exhaust gas flows in; a cover outlet through which the exhaust gas flows out; and a cooling water outlet through which the cooling water is discharged.

Abstract: An intake manifold may include a manifold inlet connected with an intake line into which fresh air flows and a recirculation line into which exhaust gas recirculation (EGR) gas flows; a manifold pressure sensor for measuring pressure of fluid flowing through the manifold inlet; and a sensor housing fluidly communicating with the manifold inlet and including a mounting space in which the manifold pressure sensor is mounted.

Abstract: A structure is mounted in a water jacket for a cylinder block of an engine so as to surround a block bore. The structure includes a body forming a pad mounting portion being a panel formed in an arc shape to have inner and outer curved surfaces that are surrounded by the block bore. A mounting hole is extended through the inner and outer curved surfaces of the pad mounting portion. A pad is formed in a shape to correspond with the mounting hole. The pad has a curved surface and is inserted into the mounting hole in a water tight manner.

Abstract: An EGR (exhaust gas recirculation) cooler includes a cylinder block having a mounting space and having a coolant inlet in which a coolant can flow into the mounting space and a coolant outlet in which the coolant can be exhausted. A cover plate covers the mounting space and forms an exhaust inlet though which the exhaust gas can flow in and an exhaust outlet through which the exhaust gas can be exhausted. Tubes are mounted in the mounting space and through which the exhaust gas can flow. An inlet tank is mounted in the mounting space and is configured to distribute the exhaust gas flowing through the exhaust inlet of the cover plate to the tubes. An outlet tank is mounted in the mounting space and is configured to guide the exhaust gas exhausted from the tubes to the exhaust outlet of the cover plate.

Abstract: A structure is mounted in a water jacket for a cylinder block of an engine. The structure includes a body forming a housing mounting portion including a panel formed in an arc shape so as to have inner and outer curved surfaces to be surrounded by a block bore. A pad-housing is formed in a plate shape to have curved surfaces with a curvature equal to the inner and outer curved surfaces of the housing mounting portion. The pad-housing is inserted into a housing mounting hole and is formed in a shape to correspond with the housing mounting hole. A pad is formed in a shape to correspond with a pad mounting hole which is bored through the pad-housing through. The pad has a curved surface and is inserted into the pad mounting hole to achieve water tightness.

Abstract: An intake system of a vehicle includes: an intake manifold having a plurality of runners for supplying intake gas to a multiple-cylinder engine; a surge tank cover coupled to the intake manifold to define a surge tank communicating with the plurality of runners via the intake manifold; an intake air inlet formed on the intake manifold as a passage through which intake air flows into the surge tank; an intake outlet formed on the intake manifold as a passage through which intake air sequentially passing through the intake air inlet, the surge tank, and the plurality of runners, and is discharged to the engine as the intake gas; a gas inlet which is a passage formed on the intake manifold and selectively receiving recirculation exhaust gas; and a gas chamber formed on the intake manifold so that the recirculation exhaust gas flows in through the gas inlet.

Abstract: An air guide structure of a vehicle is provided in which a duct for introducing outdoor air into an air cooling device of an engine includes an upper duct that is positioned in a radiator grille and a lower duct that is positioned in a bumper grille. The air guide structure includes a variable screen that is positioned between the upper duct and the lower duct and is formed to have a shape or a position that is changed according to a difference in flow rate between upper flow and lower flow introduced through the upper duct and the lower duct, respectively. The variable screen is disposed on a duct wall surface between the upper duct and the lower duct.

Abstract: An engine cooling system includes: an engine system including an engine having a plurality of combustion chambers that generate a driving force by combustion of fuel; a power electronics (PE) device that assists engine torque of the engine system in accordance with a driving state of the vehicle; a main radiator connected to the engine system by an engine coolant line and discharging heat generated in the engine system by engine coolant flowing in the engine coolant line, a sub-radiator connected to the PE device through a PE coolant line and discharging heat generated in the PE device by PE coolant flowing in the PE coolant line; a 2-way valve connecting the engine coolant line and the PE coolant line to each other; and a controller for controlling opening and closing of the 2-way valve according to a temperature of the engine coolant and a vehicle driving condition.

Abstract: A heating, ventilation and air conditioning (HVAC) system of a vehicle includes: an indoor air conditioning circuit which produces to supply cooling air to a vehicle interior by heat-exchanging inflow air through an indoor air inlet or an outdoor air inlet with an evaporator, and which produces to supply warm air to the vehicle interior or to discharge to the outside of the vehicle interior by heat-exchanging inflow air with a heat exchanger. The heat exchanger is connected with an engine cooling circuit so that engine coolant is used as a heat source of the heat exchanger, thereby improving the cooling performance of the ERG cooler.