Abstract: An injection valve for injecting fuel into a combustion chamber of an internal combustion engine comprises a valve seat, a valve element, at least one injection opening formed in the valve seat and leading to the combustion chamber, the at least one injection opening opened or closed by a stroke motion of the valve element, a catalytic coating provided in a region of the injection valve which faces the combustion chamber, and at least one protuberance which is elongated in a direction of the combustion chamber and projects into the combustion chamber.

Abstract: An intake manifold for an internal combustion engine comprises upper and lower shell members with outer flanges. The shell members define a manifold cavity having a plenum and a plurality of runners. The upper shell includes an upper post formed as an indentation into the plenum with a tunnel wall and a terminus wall. The lower shell includes a lower post formed as an indentation into the plenum with a tunnel wall and a terminus wall. The terminus walls are attached to provide a brace across the plenum. One of the posts includes an orifice penetrating the tunnel wall. A sealed coupler extends from the one post and is adapted to receive a secondary gas for mixing within the plenum. Thus, secondary gases can be introduced without additional structures that could impede gas flow and could increase manufacturing cost.

Abstract: A method of operating an engine includes determining an intake air temperature and an engine speed. The method includes selectively initiating one of a first operating mode, a second operating mode and a third operating mode based on at least the intake air temperature and the engine speed. The first operating mode includes increasing the engine speed progressively by an incremental speed value. The second operating mode includes deactivating at least one Exhaust Gas Recirculation (EGR) cylinder of the engine. The third operating mode includes shutting down the engine.

Abstract: A system for controlling a flow rate of air into a vehicle engine compartment may include a radiator cooling coolant, a coolant inflow tank provided to one side of the radiator and temporarily storing coolant that cools an engine, a coolant exhaust tank provided to the other side of the radiator and temporarily storing coolant circulating past a cooling fin of the radiator from the coolant inflow tank, Phase Change Material (PCM) tanks provided to an exterior side of the coolant inflow tank and coolant exhaust tank and storing a phase change material heat-exchanging with the coolant stored in the coolant inflow tank and the coolant exhaust tank and a conversion device converting a phase of the phase change material.

Abstract: An engine cooling fan control strategy includes measuring an engine coolant temperature using a sensor connected to the engine, measuring an engine oil temperature using a sensor connected to the engine, selecting a first value from a maximum engine coolant temperature threshold calibration curve stored in the control system based on the engine oil temperature, selecting a second value from a minimum engine coolant temperature threshold calibration curve stored in the control system based on the engine oil temperature, and placing the engine cooling fan in driven relationship with the engine when the engine coolant temperature exceeds the first value, and placing the engine cooling fan in non-driven relationship with the engine when the engine coolant temperature drops below the second value.

Abstract: It is configured such that plasma generated at a time of ignition should diffuse over an entire combustion chamber in a spark ignition type internal combustion engine in order to improve fuel efficiency. An ignition device for a spark ignition type internal combustion engine is provided including an ignition plug and a transmission antenna provided in the vicinity of the ignition plug and adapted to transmit an electromagnetic wave to a combustion chamber. The ignition device allows a spark discharge generated between a central electrode and a ground electrode of the ignition plug to react with an electric field created via the transmission antenna in the combustion chamber so as to generate plasma and ignite fuel air mixture. A receiving antenna is arranged on a combustion chamber-facing surface of at least one of an intake valve and an exhaust valve, and is adapted to receive the electromagnetic wave transmitted from the transmission antenna.

Abstract: An apparatus for controlling air flow to an engine room of a vehicle may include vertical support units provided as a pair, a plurality of flaps provided to be unfolded or folded in the vertical support units, a delivery unit configured to selectively fold or unfold the flaps, a rotary unit configured to selectively rotate the flaps, and a controller configured to control operations of the delivery unit and the rotary unit according to operational states of a vehicle.

Abstract: A switchover valve unit (36) for an internal combustion engine that has an adjustable compression ratio for controlling an hydraulic oil stream in hydraulic chambers (22, 23) of an eccentric adjustment device. The hydraulic chambers (22, 23) can be filled with hydraulic oil via hydraulic oil feed lines (24, 25), and ventilation of the hydraulic chambers (23, 24) via hydraulic oil discharge lines (30, 31) is permitted or not permitted depending on a switching position of the switchover valve unit (36). The switchover valve unit (36) having an actuating module (53) with a linearly displaceable pick-off element (37), a valve module (56) with ventilation valves (41, 42) in the hydraulic oil discharge lines (30, 31), and actuating rods (39, 40) that can be displaced linearly by the pick-off element (37). The ventilation valves (41, 42) are opened or closed depending on the switching position of the pick-off element (37).

Abstract: An internal combustion engine includes an engine block defining a plurality of cylinders. A cylinder head casting is mounted to the engine block. The cylinder head casting defines intake ports and exhaust ports communicating with the plurality of cylinders. The cylinder head casting defines an air passage in connection with the intake ports and includes elongated extruded cooling elements defining liquid coolant passages integrated into the cylinder head casting within the air passage for cooling intake air passing through the air passage.

Abstract: An internal combustion engine comprising at least one cylinder and a pair of opposed, reciprocating pistons within the cylinder forming a combustion chamber therebetween. The engine has at least one fuel injector disposed at least partly within the cylinder, the fuel injector having a nozzle that is positioned within the combustion chamber and through which the fuel is expelled into the combustion chamber, wherein the nozzle is exposed directly within the combustion chamber.

Abstract: A method for operating an internal combustion engine includes a fuel supply device for at least one first and one second fuel, wherein the internal combustion engine has at least one cylinder which includes at least one intake valve and into which air, in particular fresh air, can be supplied via an intake pipe. In a first operating mode of the internal combustion engine, the first fuel is introduced only into the intake pipe, and in a second operating mode, the second fuel is exclusively introduced directly into the cylinder, and in the second operating mode an intake valve opening time period is adjusted to be shorter than in the first operating mode.

Abstract: A fuel delivery system for an internal combustion engine having a fuel pump with a high pressure outlet. A fuel rail defining an internal fuel chamber is fluidly connected to the fuel pump outlet. Additionally, at least two fuel injectors are fluidly connected to the fuel rail internal fuel chamber. At least one fluid check valve is fluidly positioned within the fuel rail in between two of the fuel injectors which reduces fuel pressure pulsations.

Abstract: A throttle body including a body having two ports extending through the body. The two ports arranged in a side-by-side relationship relative to one another. The body has a bridge positioned between the two ports, and the bridge having an inlet end and an outlet end. The bridge is configured to define a peak at the inlet end intersecting a line extending from a center of one port to a center of the other port.

Abstract: A method for producing a cylinder liner surface for a cylinder crankcase of an internal combustion engine has the following method steps: (a) preliminary honing of the inner surface of a cylinder liner consisting of a cast iron material to form depressions in the surface; (b) application of a coating material containing zinc to the honed surface; (c) final honing of the coated surface in such a way that the coating material containing zinc remains only in the depressions formed by the preliminary honing.

Abstract: A bearing block assembly in an engine is provided. The bearing block assembly includes at least one bearing block to rotatably support an oil lubricated shaft and fastening apparatus to attach the at least one bearing block to a flat mounting surface on a large engine component and a thermal barrier positioned between the shaft and the flat mounting surface configured to reduce the loss of heat to the large engine component from oil used to lubricate the shaft.

Abstract: The two-cycle engine includes a piston capable of reciprocating along a cylinder, the piston being provided with piston rings; and a lubrication port provided in the cylinder, the lubrication port being used to supply a lubricant to a sliding surface of the cylinder on which the piston rings slide. Inter-ring spaces are provided, each inter-ring space being between adjacent piston rings. In addition, the two-cycle engine includes a controller used to adjust a lubrication period of lubricating from the lubrication port during movement of the piston toward a top dead center thereof, so that a period before an uppermost inter-ring space passing by the lubrication port is excluded from the lubrication period and a period in which at least part of a lowermost inter-ring space faces the lubrication port is included in the lubrication period.

Abstract: An engine includes a cylinder block having first and second passages intersecting a block face on opposed sides of a bore bridge defining a bore bridge cooling passage. A cylinder head has third and fourth passages intersecting a head face. The first and fourth passages are opposed from one another. A gasket is placed between the block and the head. The gasket adapted to fluidly connect the first and fourth passages via the bore bridge cooling passage, and cover the second passage.

Abstract: An oil pump control valve assembly includes a control valve for controlling a flow of a fluid, and a solenoid for operating the control valve. The control valve includes a tube-like holder having a hollow internal space, configured to include an inflow port formed at one end thereof, a tube-like first valve sheet formed in the middle of the holder, a ball valve mounted in the first valve sheet, a second valve sheet coupled to a second end of the first valve sheet, and a load mounted in the second valve sheet, one end thereof being extended through the second valve sheet to come into contact with the ball valve, wherein, when the solenoid is operated, the ball valve is moved to open the inflow port.

Abstract: A motorcycle engine having cylinders arranged in parallel in a vehicle width direction, an air cleaner, a fuel tank arranged above the engine to cover the air cleaner, and a fuel injection device. The fuel injection device includes an electronic control throttle body unit electrically controlling a throttle body of the engine; an intake passage of down draft intake structure connecting the air cleaner and a combustion chamber of the engine in each of the cylinders; fuel injectors provided at the intake passage including a first fuel injector located on an intake downstream side and a second fuel injector located on an intake upstream side; and a drive motor of the electronic control throttle body unit arranged between the intake passage and the fuel tank and arranged on a same side as the first fuel injector and the second fuel injector and between the first and second fuel injectors.

Abstract: An exhaust gas cooling device, which cools exhaust gas from an internal combustion engine mounted on a vehicle through heat exchange between the exhaust gas and a coolant, includes: a plurality of tubes through which the exhaust gas flows; a tubular shell which houses the plurality of tubes and is configured to allow the coolant to flow therethrough; and a header plate disposed at an end portion in the shell to prevent the coolant from flowing out of the shell. The header plate includes support holes in which end portions of the plurality of the tubes are fitted and supported, and each of axial end faces of the plurality of tubes is located in the corresponding support hole at a position between both ends of the header plate in a thickness direction of the header plate.