Abstract: An apparatus for controlling an engine includes an engine including a plurality of combustion chambers for generating driving torque by burning a fuel, a high-capacity turbocharger including a turbine rotated by the exhaust gas exhausted from the combustion chambers and a compressor rotated together with the turbine for compressing exhaust gas exhausted from the combustion chamber, an electric supercharger including a motor and an electric compressor operated by the motor, a throttle valve for adjusting an intake air amount supplied to the combustion chamber, a driving information detector for detecting driving information including a required torque and an engine speed, and a controller for determining a driving region of the engine from the driving information detected by the driving information detector, and controlling engine torque by adjusting an opening of the throttle valve and an output of the motor according to the driving region of the engine.

Abstract: A diaphragm valve for a vehicle includes: a diaphragm chamber having an upper chamber and a lower chamber divided by a diaphragm and communicating with a valve inlet and a valve outlet. The upper chamber has a nipple in which a fluid flows or from which a fluid is discharged, and the lower chamber has a chamber opening port at a lower end thereof. A valve rod is coupled to the diaphragm and extends toward the valve outlet. A valve head is provided at a position corresponding to an end of the valve rod and has a wider cross sectional area than the valve rod. The valve head closes the valve outlet when the valve is closed, and closes the chamber opening port when the valve is open.

Abstract: The present disclosure provides an apparatus for improving engine air flow including: a combination recess which is formed at an intake port of a cylinder head and is extended toward a combustion chamber along an air flow path at a position combined with an intake manifold; a fixing body which is fit-inserted to and combined to the combination recess; and a plate an end of which is combined to the fixing body on the flow path of the intake port and which guides the air flow flowing into the intake port.

Abstract: A valve device for a vehicle may include a pneumatic valve having first and second chambers in which respective pressures thereof are regulated, and a pressure regulation valve coupled to the pneumatic valve, the pressure regulation valve communicating with the first chamber, including a positive pressure side opening and a negative pressure side opening, and selectively opening and closing the positive pressure side opening and the negative pressure side opening to regulate the pressure in the first chamber.

Abstract: An EGR cooling system for a vehicle may include an EGR cooler having an inlet at a first side and an outlet at a second side thereof, in which a gas channel may be disposed between the inlet and the outlet for heat exchange with coolant in coolant channels, and the outlet may be connected to a water pump, in an engine having a separable cooling system that includes the coolant channels individually formed in each of an engine head and an engine block of the engine, to control the supply of coolant.

Abstract: The present disclosure provides a fuel injection unit for an internal combustion engine. The fuel injection unit includes: a separator that is disposed in an intake port to supplie air into a combustion chamber formed in an engine head, and that divides a channel for air into an upper channel and a lower channel; a blade disposed ahead of the separator and opening or closing the upper channel or the lower channel by rotating; and a first injector disposed over the intake port. In particular, when the first injector injects fuel, the blade does not interfere with the fuel.

Abstract: An air intake structure for a vehicle engine includes: a variable flap rotatably provided in an intake air passage so as to control a cross-sectional area of intake air flow; a port plate provided to a downstream of the variable flap, and generating displacement in cooperation with the variable flap; a driving unit supplying a driving force for generating displacement of both the variable flap and the port plate; and a controller determining a rotation angle of the variable flap in accordance with an operating range of an engine, and controlling the rotation angle of the variable flap by driving the driving unit.

Abstract: A connector for coupling an exhaust manifold with a turbocharger housing may include a manifold coupling part coupled with the exhaust manifold, a housing coupling part integrally coupled with an end of the manifold coupling part and coupled with the turbocharger housing, and a plurality of exhaust gas paths penetrating through the manifold coupling part and the housing coupling part.

Abstract: An apparatus for supporting a waste gate module includes a support bracket connecting the waste gate module and a turbocharger housing, and a coupling protrusion formed on a face of the support bracket and that faces the waste gate module, where the coupling protrusion has an end coupled to the waste gate module.

Abstract: An engine system includes an engine including a plurality of cylinders generating driving torque by combustion of fuel, a cylinder deactivation apparatus (CDA) disposed at one or more of the plurality of cylinders for selectively deactivating the one or more of the plurality of cylinders, a first exhaust manifold connected to cylinders at which the CDA apparatus is disposed, a second exhaust manifold connected to cylinders at which the CDA apparatus is not disposed, a turbocharger including a turbine rotated by exhaust gas exhausted from the first exhaust manifold, and further including a compressor rotated together with the turbine for compressing air supplied to the cylinders, and an electric supercharger including a motor and an electric compressor operated by the motor for supplying compressed air to the cylinders.

Abstract: A turbocharger structure for a vehicle includes a turbine turned by exhaust gas, a first scroll communicating with an exhaust port of an engine block so as to allow the exhaust gas to flow therein, the first scroll surrounding the turbine by extending along a circumferential direction of the turbine and being provided with an opening at an end thereof for discharging exhaust gas to the turbine, and a second scroll communicating with an exhaust port of the engine block so as to allow exhaust gas to flow therein, the second scroll surrounding the turbine, along with the first scroll by extending along the circumferential direction of the turbine, and being provided with an opening at an end thereof for discharging exhaust gas to the turbine, wherein the ends of the first scroll and the second scroll having the respective openings are disposed at different locations on a circumference of the turbine.

Abstract: An apparatus for discharging exhaust gas of a vehicle may include an exhaust port forming a first confluence part at which at least two runners among runners of an exhaust manifold connected with a cylinder are joined, and a second confluence part at which the remaining runners are joined, and a connector member having an inlet port through which exhaust gas discharged through the exhaust port is introduced, and having a partition which is formed toward the exhaust port in the inlet port so as to partition the first confluence part and the second confluence part.

Abstract: The present disclosure provides an engine structure for a vehicle. The engine structure includes: an intake port, a port plate provided in the single flow path of the intake port, and an injector. The port plate is longitudinally parallel to the flow path of the intake port so as to divide the flow path of the intake port into upper and lower flow paths, and the port plate includes an extension portion formed on part of a downstream end of the port plate such that the extension portion of the downstream end of the port plate extends longer than other portion of the downstream end of the port plate. In particular, the injector is provided in the intake port, and sprays fuel beyond the extension portion so as to inhibit the fuel from adhering to the port plate.

Abstract: A cylinder head integrated with an exhaust manifold and an exhaust gas recirculation (EGR) cooler may include an exhaust manifold including a plurality of connection parts connected to a plurality of exhaust ports, respectively, and an extension part connected to a plurality of connection parts, a water jacket provided at a location adjacent to the exhaust manifold, and an EGR cooler communicating with the water jacket and configured to surround an outside of the extension part of the exhaust manifold.

Abstract: A diaphragm valve for a vehicle includes: a diaphragm chamber having an upper chamber and a lower chamber divided by a diaphragm and communicating with a valve inlet and a valve outlet. The upper chamber has a nipple in which a fluid flows or from which a fluid is discharged, and the lower chamber has a chamber opening port at a lower end thereof. A valve rod is coupled to the diaphragm and extends toward the valve outlet. A valve head is provided at a position corresponding to an end W of the valve rod and has a wider cross sectional area than the valve rod. The valve head closes the valve outlet when the valve is closed, and closes the chamber opening port when the valve is open.

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: A valve device of a turbocharger includes: a valve seat disposed on an entrance of a fluid passage divided into at least two branches, and an opening/closing valve coupled to a rotary shaft rotatably disposed adjacent to the valve seat. The valve seat has a contact surface which is flat and a dividing section which extends across the entrance and divides the entrance into two entrance sections. The opening/closing valve closes the entrance of the fluid passage disposed in the valve seat. The bottom surface of the opening/closing valve is in surface contact with the contact surface of the valve seat. The central portion of the opening/closing valve corresponding to the dividing section is spaced apart from the dividing section at a predetermined distance.

Abstract: The present disclosure provides an apparatus for improving engine air flow including: a combination recess which is formed at an intake port of a cylinder head and is extended toward a combustion chamber along an air flow path at a position combined with an intake manifold; a fixing body which is fit-inserted to and combined to the combination recess; and a plate an end of which is combined to the fixing body on the flow path of the intake port and which guides the air flow flowing into the intake port.

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: An engine system may include a main intake line, a supplementary intake line branched from the main intake line and joined to the main intake line, an intake bypass valve mounted to the main intake line, a main exhaust line mounted to an exhaust manifold, a supplementary exhaust line branched from the exhaust manifold and joined to the main exhaust line, an exhaust bypass valve mounted to the main exhaust line and selectively opening the main exhaust line, a turbocharger disposed adjacent to the supplementary exhaust line and operated by exhaust gas passing through the supplementary exhaust line, and a control unit for controlling the intake bypass valve and the exhaust bypass valve depending on an operation condition, wherein the exhaust gas is re-circulated from an upstream side of the exhaust bypass valve to the main intake line passing through an EGR (Exhaust Gas Recirculation) cooler and an EGR valve.