Abstract: A sensor for detecting oxygen concentration in exhaust gas or an air-fuel ratio provided with a solid electrolyte body, an exhaust gas side electrode being disposed on one side of the solid electrolyte body and being in contact with the exhaust gas, an atmosphere side electrode being disposed on the other side of the solid electrolyte body and being in contact with the atmosphere, and an electric circuit applying a reference voltage between these electrodes is arranged in an engine exhaust passage. The sensor for detecting the oxygen concentration in the exhaust gas or the air-fuel ratio has a characteristic in which an output current continues to increase without having a limiting current region when the voltage applied between the electrodes is increased while the air-fuel ratio is constant. The air-fuel ratio is controlled based on the output current of the sensor for detecting the oxygen concentration in the exhaust gas or the air-fuel ratio.

Abstract: The invention relates to a gas metering valve (1) for a dual fuel engine (17), which has a displaceable closing body (6) which, in a position of resting against a valve seat (5), closes the gas metering valve (1) and, in a position of being lifted off from the valve seat (5), opens the gas metering valve (1). The gas metering valve (1) is actuatable in a gas operating mode, in which the gas metering valve (1) meters combustion gas via a gas channel (13) into an intake manifold (15) of the dual fuel engine (17), and in a liquid fuel operating mode, in which the gas metering valve (1) remains sealingly closed against the pressure prevalent in the intake manifold (15).

Abstract: An engine automatic-stop/restart system includes a starting apparatus drive start setting unit that sets in an output comparison register a starting apparatus drive starting time instant obtained by adding a calculated starting apparatus drive start waiting time to a present time instant read from a free-running counter and that starts drive of a starting apparatus when the set starting apparatus drive starting time instant and the value of the free-running counter coincide with each other.

Abstract: A vehicle cooling system includes an internal combustion engine, a transmission having a cooler, a coolant pump, a first coolant loop, a second coolant loop, and a flow regulator. The first coolant loop fluidly connects the coolant pump to the engine and returns to the coolant pump. The second coolant loop fluidly connects the coolant pump to the transmission cooler and returns to the coolant pump, bypassing the engine. The flow regulator is configured to selectively restrict coolant flow through the second coolant loop.

Abstract: A device for injecting fuel into the combustion chamber of an internal combustion engine comprising at least one injector. The injector includes an injector body, a high-pressure accumulator integrated into the injector body, an injection nozzle, a high-pressure bore, and a feed bore. The injection nozzle defines a nozzle chamber and has a nozzle needle configured to be guided in an axially movable manner and that is surrounded by the nozzle chamber. The high-pressure bore is connected to the high-pressure accumulator and the nozzle chamber. The feed bore is configured to feed high-pressure fuel to the high-pressure accumulator. Additionally, the feed bore has a lance connection positioned laterally on the injector body, is formed as a bore separate from the high-pressure bore, and connects the lance connection directly to the high-pressure accumulator.

Abstract: The present disclosure provides an open-faced piston with a circumferential groove into which a piston ring assembly is arranged. Openings at the bottom of the circumferential groove and between a front land of the open-faced piston and the piston face are provided. The openings are arranged to allow for a combustion reaction to propagate through the volume defined between the bottom of the piston ring assembly and the piston face such that at least a portion of an air and fuel mixture located in that volume is reacted.

Abstract: A method for regulation of a concentration/fraction of one or several substances comprised in an exhaust system in a motor vehicle through control of its driveline: The driveline includes a combustion engine which may be connected to a gearbox via a clutch device, wherein the gearbox has several discrete gears, and an exhaust system for removal of an exhaust stream from the combustion engine; the method includes obtaining one or several first parameters P1 related to at least one first concentration/fraction C1/X1 of one or several substances comprised in the exhaust system; and controlling the gearbox, and thus an operating point in the combustion engine, based on the parameters P1 for regulation of a concentration/fraction CEx/XEx of one or several substances in the said exhaust system. Further, a computer program, a computer program product, a system and a motor vehicle comprising such a system are disclosed.

Abstract: An engine control system of a vehicle includes a cylinder control module a first air per cylinder (APC) module, an adjustment module, and a fuel control module. The cylinder control module determines a target fraction of activated cylinders of an engine. The first APC module determines a first APC value based on an intake manifold pressure and an air temperature. The adjustment module determines an APC adjustment value based on the target fraction of activated cylinders. The first APC module also determines a second APC value based on the first APC value and the APC adjustment value. The fuel control module controls fuel injection based on the second APC value and a target air/fuel mixture.

Abstract: A stator-cover unit (1) for a camshaft adjuster designed for use in an internal combustion engine, having a toothed ring (2) for receiving a torque, there being integrally connected to said toothed ring a stator (3) in the form of a housing, having a locking cover (4) which is separate from the stator (3), wherein the locking cover (4) is connected rotationally conjointly to the stator (3), wherein the stator (3) and the locking cover (4), at least during assembly, are held rotationally conjointly secured in said position by means of a projection (9) on one of the two components, which projection engages with a form fit into a recess (11) on the other of the two components. A camshaft adjuster having a rotor and having a correspondingly designed stator-cover unit (1), wherein a piston can be introduced, movably in an axial direction, into an opening of the locking cover (4).

Abstract: An internal combustion engine may include at least one engine block having a plurality of cylinders and at least one flange component. At least one attachment part may be secured to the at least one flange component. An alignment device may be constructed and arranged to align the at least one attachment part relative to the at least one flange component when the at least one attachment part is attached to the at least one flange component. The alignment device may include at least a first alignment unit, a second alignment unit, and a third alignment unit, which may be spaced apart from one another. At least one of the first alignment unit, the second alignment unit, and the third alignment unit may be constructed and arranged to align the at least one attachment part to a cylinder head in relation to a first aligning direction perpendicular to an attaching direction, when the at least one attachment part is attached to the cylinder head.

Abstract: A controller for an internal combustion engine that has a port injection valve and is capable of running on a gasoline/alcohol mixed fuel comprises: load detecting means that detects a load during operation of the internal combustion engine; alcohol concentration detecting means that detects an alcohol concentration of the mixed fuel; and synchronous fuel injection increasing means that increases a fuel injection amount in a synchronous injection period in response to the load when the load detected by the load detecting means is higher than a predetermined load value and the alcohol concentration detected by the alcohol concentration detecting means is higher than a predetermined concentration value, the synchronous injection period being a period in which a period in which an intake valve is opened and a period in which the mixed fuel is injected from the port injection valve overlap with each other.

Abstract: A method of controlling the operation of an air charging system is disclosed. A plurality of output parameters of the air charging system are monitored. An error between each one of the monitored output parameters and a target value thereof is calculated. Each one of the calculated errors is applied to a linear controller that yields a virtual input which is used to calculate a plurality of input parameters for the air charging system. Each one of the input parameters is used to determine the position of a corresponding actuator of the air charging system and operate of the actuators according to the determined position thereof. The inputs parameters are calculated with a non-linear mathematical model of the air charging system configured such that each one of the virtual inputs is in a linear relation with only one of the output parameters.

Abstract: The present disclosure relates to an engine control device for hybrid construction machinery, and more particularly, and an object of the present disclosure is to, in a hybrid excavator, in which a swing apparatus is electrically driven by being separated from a hydraulic power train system in the related art, satisfy a minimum rotational speed of an engine auxiliary motor which is necessary to satisfy a target charging amount required for an energy storage device, and improve fuel efficiency by removing unnecessary energy loss at low loads by controlling a rotational speed of an engine to be lower than a rotational speed of an engine determined based on a dial input and a mode input in the related art, in a case where a target power generation amount of the engine auxiliary motor is small in a low-load work situation.

Abstract: A controller of an engine performing a premixed combustion operation and a diffusion combustion operation that are switchable in accordance with the traveling state of a vehicle, includes a detector detecting the gear position of the transmission mounted in the vehicle, and a changer changing the traveling conditions for performing the premixed combustion operation on the basis of the gear position detected by the detector.

Abstract: Provided is an ignition plug (15) that has an antenna (54) for emitting high-frequency EM waves to combustion chamber (20) of an internal combustion engine (10), wherein the propagation velocity of the flame is augmented using the high-frequency EM waves emitted from the antenna (54). The ignition plug (15) has an ignition plug body (30) and an antenna (54). The antenna (54) is located on the front-tip side surface of the cylindrical second conductive member (33) within the ignition plug body (30), which accommodates a rod-shaped first conductive member (31) and cylindrical insulation (32) surrounding the first conductive member (31).

Abstract: A vehicle control apparatus includes: a first target driving force calculation unit that calculates a first target driving force based on an accelerator pedal opening; a target speed ratio calculation unit that calculates a target speed ratio of a continuously variable transmission based on the first target driving force; a target torque calculation unit that calculates a target torque of a driving source based on the first target driving force; an air density detection unit that detects air density; and a first correction unit that corrects only the target torque, out of the target speed ratio and the target torque, in accordance with the air density.

Abstract: A structure of a combustion chamber is provided. The structure includes a cavity formed in a central part of a crown surface of a piston and a wall surface constituting the cavity. The wall surface has a central ridge portion bulging farther toward a bottom surface of a cylinder head toward a center of the cavity, a periphery concave portion formed radially outward of the central ridge portion to concave radially outward, and a lip portion formed between the periphery concave portion and an opening edge of the cavity to convex radially inward. An outer circumferential part of the crown surface has a first portion and a second portion located radially outward of the first portion. A stepped portion is formed between the first and second portions. A stepped portion volume ratio of a stepped portion volume to a top dead center volume is set to 0.1 or smaller.

Abstract: The engine shut-off valve system includes a housing, a gate member, a rotating lever, a locking piston assembly, and a closing piston assembly. The system is installed in fluid connection with a flow line so that air flow passes through a passageway in the housing with the gate member in the locked configuration. The air flow through the passageway stops with the gate member in the closed configuration. The gate member has an asymmetry so that the forces of the spring of the closing piston assembly and the spring of the locking piston assembly are cooperative to actuate between the closed configuration and the locked configuration, while wearing on the gate member differently so as to extend the working life of the valve system. The closing piston assembly and the locking piston assembly are separately accessible for maintenance.

Abstract: An internal combustion engine may include an engine block, a cylinder within the engine block, and a piston within the cylinder. The piston may have an outer peripheral wall, and a groove in the outer peripheral wall of the piston may have a first edge and a second edge spaced from the first edge. The piston may have a piston ring in the groove, and the piston ring may have a shape that meanders within the groove, such that the shape of the piston ring differs from a shape of the groove and such that the piston ring does not substantially fill the groove. The piston ring may be constructed of a material that when subjected to heat causes a shape of the meanderings to change, thereby enabling the piston ring to expand in an axial direction of the piston, between the edges of the groove.

Abstract: A fuel injection system for a reciprocating engine, comprising injectors for injecting pressurized fuel into the cylinders of the engine, a high pressure pump for pressurizing fuel to be injected, a supply pipe for feeding fuel from the high pressure pump toward the injectors and feed pipes for feeding fuel from the supply pipe to the injectors. The first ends of the feed pipes are connected to the injectors and the second ends to the supply pipe. Each fuel injector is provided with a pressure accumulator.