|| List of recent Internal Combustion Engine-related patents
A hybrid vehicle according to one embodiment of the present invention has: an internal combustion engine including an in-cylinder fuel injection valve and a crank ventilation system; a motor; a power transmission mechanism connecting a drive shaft of the vehicle and the engine to allow torque transmission therebetween and connecting the drive shaft and the motor to allow torque transmission therebetween; and a control device. The control device controls output torques of the engine and the motor so as to exert an equal torque to a user requiring torque on the drive shaft.
|Power generation control apparatus for hybrid vehicle|
In a power generation control apparatus applied to a hybrid vehicle including a compound motor in which a wound rotor is connected to an internal combustion engine and a magnet rotor is connected to a transmission, when regenerative power generation is underway and the internal combustion engine is operative, a first motor/generator constituted by the wound rotor and the magnet rotor and the internal combustion engine are controlled such that torque output from the internal combustion engine is increased by torque applied to the internal combustion engine from the first motor/generator, and a power generation amount of a second motor/generator constituted by the magnet rotor and a stator is increased such that torque transmitted to an output shaft from the internal combustion engine is not applied to a drive wheel.. .
|Method for operating a vehicle|
A method for operating a vehicle system is provided. The method includes activating a starter-generator rotationally coupled to a crankshaft output in an internal combustion engine while combustion operation in the internal combustion engine is inhibited, operating the starter-generator to drive the crankshaft in a predetermined speed range while combustion operation in the internal combustion engine is inhibited, and activating combustion operation in a cylinder of the internal combustion engine in response to a combustion activation trigger..
|Exhaust purification device for internal combustion engine|
A decrease in determination accuracy on filter trouble due to a decrease in detection accuracy of a pm sensor is restricted. A filter, a selective reduction type nox catalyst provided on a downstream of the filter, the pm sensor detecting an amount of pm on a downstream of the selective reduction type nox catalyst, and a removal section conducting a process for removing a reducing agent attached to the pm sensor in a case where at least one of conditions is satisfied that a temperature of the selective reduction type nox catalyst is equal to or lower than a threshold, that a temperature of the exhaust is equal to or lower than a threshold, that a flow rate of the exhaust is equal to or higher than a threshold, and that an adsorption amount of the reducing agent in the selective reduction type nox catalyst is equal to or larger than a threshold are included..
|Spark plug for internal combustion engine and method of manufacturing the same|
In a spark plug, a center electrode includes a base member and a discharge chip that has a higher melting point than the base member. The base member and the discharge chip are joined to each other by both a weld and a diffusion layer.
|Spark plug for internal combustion engine|
A spark plug for an internal combustion engine includes a center electrode, a tubular insulator, a tubular metal shell, a ground electrode and an overvoltage preventer. The insulator has the center electrode inserted and held therein.
|System and method for control of fuel injector spray|
The disclosure provides an improved fuel injector and method of operating the fuel injector to provide at least two different types of fuel spray to a combustion chamber of an internal combustion engine. The two types of spray are formed by providing a first fuel pressure to the fuel injector during a first portion of an injection event at a first pressure and providing a second fuel pressure to the fuel injection during a second portion of the injection event, and maintaining a substantially constant fuel flow rate throughout the injection event..
|Method and system for providing fuel to internal combustion engines|
The present invention relates to a system and method for providing fuel to internal combustion engines including fuel activation prior to injection. The method carried out by the system comprises dissolving a mixture of gasses providing improved fuel dispersing after fuel injection into a combustion chamber.
|Control system for internal combustion engine and inert gas concentration detecting device for compressed natural gas|
In a control system that includes a pressure accumulating portion that supplies cng to a fuel injection valve and a regulator that adjusts a pressure in the pressure accumulating portion to a set pressure and of which a valve element opens when cng is supplied to the pressure accumulating portion and closes when supply of cng to the pressure accumulating portion is shut off, a control parameter relating to a combustion state in an internal combustion engine is controlled on the basis of a length of a period during which an opening degree of the valve element reduces from a first predetermined opening degree to a second predetermined opening degree when the pressure in the pressure accumulating portion is adjusted to the set pressure by the regulator.. .
|Fuel injection valve and device for injecting fuel|
The fuel injection valve (1) for the intermittent injection of fuel into the combustion chamber of an internal combustion engine has a valve housing (12) that defines a longitudinal axis (14) and is provided with a high-pressure chamber (16). The connecting part (20) of the valve housing (12) has two identically formed high-pressure connections (22, 24) for high-pressure fuel lines.
|Internal combustion engine having a starter device|
An internal combustion engine has a supply channel for supplying combustion air. A throttle element is arranged in the supply channel.
|Internal combustion engine having a starter device|
An internal combustion engine has a supply channel supplying combustion air. A throttle element is arranged in the supply channel and the position of the throttle element is adjustable by an operator-controlled element.
|Internal combustion engine control device|
In an internal combustion engine control device, a predetermined margin torque is set such that it is possible to maintain a predetermined engine idling speed by adjusting ignition timing with respect to load fluctuations during idling operation. The margin torque is set to decrease, as a load, acting on the internal combustion engine during idling operation, increases.
|Control device for internal combustion engine|
A control device of an internal combustion engine performs an air-fuel ratio feedback control to set an air-fuel ratio to a target air-fuel ratio, and determines abnormality of a fuel system based on a feedback correction amount by the air-fuel ratio feedback control. The control device of an internal combustion engine includes: a double tank type oil pan including: an inner tank and an outer tank for storing oil; and a mechanism which switches between connection and disconnection of the inner tank and the outer tank; and a controller configured to control the mechanism to connect the inner tank and the outer tank in a case where the feedback correction amount is equal to or larger than a first predetermined value.
|Internal combustion engine with paired, parallel, offset pistons|
An internal combustion engine; wherein at least two cylinders continuously communicate via the cylinder head; and wherein the connecting rod in one cylinder is offset from the connecting rod in the second cylinder by an angle between 1 and 90 degrees as measured from the crankshaft.. .
|Rotary internal combustion engine with pilot subchamber and ignition element|
A rotary engine an insert in one of the walls of the outer body having a pilot subchamber defined therein communicating with the internal cavity of the engine. An ignition element extends in an element cavity defined through the insert adjacent the subchamber.
|Connecting rod for internal combustion engine|
A connecting rod for internal combustion engines and the like has a rod, an upper connecting rod part, and a lower connecting rod part the rod is composed of at least two parts including a left part, as considered in direction of rotation of a crankshaft clockwise, having a straight shape and connected directly to the upper connecting rod part and to the lower connecting rod part, and a right preferably bent part connected directly to the lower connecting rod part and to the upper connecting rod part by an intermediate part.. .
|Valve guide insert with frictional pre-broach retention feature|
A valve guide insert for lining and relining a valve guide bore in an internal combustion engine includes a one-piece, thin-walled, cylindrically-shaped metallic tube made from reformable bearing material having first and second ends and an intermediate portion. An inwardly tapered portion is disposed at the first end, wherein an end diameter of the inwardly tapered portion is less than an outer diameter of a valve guide bore, and wherein the outer diameter of the intermediate section is greater than an inner diameter of a valve guide bore.
|Method for producing a built hollow valve|
A method for producing a hollow valve of an internal combustion engine may include providing a hollow valve stem, a valve cone, and a valve bottom; pushing the valve cone over the valve stem via a press fit, wherein the valve cone includes an outer surface transitioning to the valve stem to define a testing surface; and welding the valve cone to the valve stem via at least one of a laser beam and an electron beam, wherein the welding occurs such that no melting of the outer surface in the region of the testing surface of the valve cone occurs.. .
|Gas exchange valve of an internal combustion engine|
A gas exchange valve of an internal combustion engine may include a hollow valve stem and a valve disc. The valve disc may include a valve bottom and a hollow valve cone which is connected to an outer edge of said valve bottom.
|Hybrid vehicles with radial engines|
A radial cam engine with an optimized cam configuration can provide improve performance over crankshaft internal combustion engines. The cam configuration can include a flat-top or flat bottom piston motion, multiple lobe cam configurations, matching piston force with torque/force ratio in combustion phase, asymmetry piston motions for improved power transfer during combustion phase, and/or offset piston and cam configurations.
|Control device for internal combustion engine|
An ecu 50 acquires a wall surface temperature of a combustion chamber 14 or an engine water temperature or the like that correlates therewith as a wall temperature parameter. The ecu 50 is equipped with data for a pre-ignition suppression temperature region that is a region in which the pre-ignition occurrence frequency is smallest among temperature regions of the wall temperature parameter.
|Powertrain mechanism for vehicles with internal combustion engine|
A powertrain mechanism comprising a carrier plate connected to the crankshaft, a drive plate connected to the gearbox shaft and at least one spring positioned between at least one first spring housing provided on the carrier plate and at least one spring housing provided on the drive plate, in order to transfer the torque, obtained from the crankshaft, to the gearbox shaft in vehicles having internal combustion engine.. .
|Thermal type air flow meter having a reinforcing structure provided on the base member between the board fixing part and the secondary passage constituting part|
A thermal type air flow meter that is capable of suppressing deformation of a base member at the time of molding is disclosed, to thereby secure dimension accuracy and reduce an influence of a dimension change on measuring accuracy. The meter includes a housing member placed in an intake passage of an internal combustion engine, and a base member fixed to the housing member and includes a secondary air passage into which part of air passing through the intake passage flows.
A camshaft position pulse-generating wheel having a plurality of teeth on its circumference at irregular angular distances and one tooth edge in each case, at least at 0°, 90°, 120°, 180°, 240° and 270° of its circumference, and a device for ascertaining a camshaft position. In this position, the camshaft position pulse-generating wheel is connected, in a torsionally fixed manner, to a camshaft of a four-stroke internal combustion engine having at least one cylinder and a camshaft position sensor to detect a position of a tooth edge of the camshaft position pulse-generating wheel.
|Method and device for desulphurizing an exhaust-gas recirculation flow|
A method for desulphurizing an exhaust-gas recirculation flow of an internal combustion engine supplied to the internal combustion engine on the fresh-air side includes branching a partial exhaust-gas flow from the exhaust-gas flow of the internal combustion engine. At least one reactant is supplied to the partial exhaust-gas flow that splits to form ammonia, and the thus laden partial exhaust-gas flow is supplied partially, as an exhaust-gas recirculation flow, to the fresh-air side and partially, as an aftertreatment partial flow, to an exhaust-gas aftertreatment system.
|Exhaust system of an internal combustion engine|
An exhaust system (1) of an internal combustion engine includes an oxidation catalytic converter (2), a particle filter (3), an injector (4) for injecting a reducing agent, a static mixer-evaporator (5), an scr catalytic converter (6) and a housing (8). The oxidation catalytic converter is upstream of the particle filter and upstream of the scr catalytic converter.
|Voltage control system for heating a selective catalyst reduction device|
An exhaust gas treatment system for an internal combustion engine is provided. The exhaust gas treatment system includes an electrically heated catalyst (“ehc”) device in fluid communication with an exhaust gas conduit, a generator, a selective catalytic reduction (“scr”) device, and a control module.
|Method for producing a built hollow valve of an internal combustion engine|
A method for producing a hollow valve of an internal combustion engine may include providing a valve stem and a valve disc having a valve bottom and a valve cone; placing the valve bottom centrally in a mounting of an assembly device; holding the valve stem via a holding device; concentrically placing the valve stem onto the valve bottom and rotating the valve stem together with the valve bottom; welding the valve stem to the valve bottom; pushing the valve cone over the valve stem until the valve stem contacts the valve bottom; welding the valve cone together with the valve bottom; and welding the valve cone together with the valve stem.. .
|Internal combustion engine operating on different reactivity fuels|
A premixed charge of air and a low reactivity fuel is created in a combustion chamber space by the time at which a piston comes substantially to top dead center at which time a high reactivity fuel is directly injected into a central zone of the combustion chamber space which is bounded partially by a central bowl cavity in the piston head which is itself surrounded by an upright intermediate wall. The high reactivity fuel combusts by conventional diesel combustion and creates a flame front which propagates into an outer zone of the combustion chamber space which is bounded partially by the upright intermediate wall and an outer bowl cavity in the piston head to initiate combustion of the premixed air-fuel charge in the outer zone of the combustion chamber space..
|System and method of operating an internal combustion engine|
A method of operating an internal combustion engine is provided. The method includes combusting a mixture of fresh air and fuel within multiple cylinders.
|Method for cylinder equalization of a lambda-controlled internal combustion engine, in particular of a motor vehicle|
In a method for cylinder equalization of a lambda-controlled internal combustion engine of a motor vehicle, cylinders to be tested are trimmed with respect to the mixture composition of metered fuel, and the cylinder equalization is carried out on the basis of an uneven running or uneven running change of the internal combustion engine caused by the trimming. In addition, the uneven running or uneven running change is detected in a reference state of the internal combustion engine.
|Method and device for dynamic monitoring of gas sensors|
In a method for monitoring the dynamics of gas sensors of an internal combustion engine, which gas sensors exhibit a low-pass behavior as a function of geometry, measurement principle, aging, or contamination, a dynamics diagnosis is carried out, upon a change in the gas state variable to be measured, on the basis of a comparison between a modeled and a measured signal. The parameters of the low-pass behavior are determined in direction-dependent fashion by minimizing direction-dependent error signals created by high-pass filtering and logical combination with direction-dependent saturation characteristic curves, the direction-dependent error signals being calculated by comparing the modeled and the measured signal for a rising and a falling signal component..
|Engine operation start control device of hybrid vehicle|
The invention relates to an engine operation start control device of a hybrid vehicle comprising a power output device having an internal combustion engine and an electric motor. In this hybrid vehicle, an intermittent control for intermittently operating the engine can be performed and when the operation of the engine is started during the intermittent control being performed, a cranking of the engine is performed until the engine speed reaches a target engine speed.
|Exhaust gas purification apparatus for internal combustion engine|
It is intended to maintain the purification ability as a whole. For this purpose, an exhaust gas purification apparatus comprises a three-way catalyst; an nh3-producing catalyst; and a selective catalytic reduction nox catalyst; the catalysts being provided in this order at an exhaust gas passage; and the exhaust gas purification apparatus further comprising a control device which carries out rich spike for lowering an air-fuel ratio of an exhaust gas from a lean air-fuel ratio to a predetermined rich air-fuel ratio; wherein the control device lengthens an interval of the rich spike if a temperature of the three-way catalyst is lower than a threshold value as a lower limit value of a temperature of activation as compared with if the temperature of the three-way catalyst is not less than the threshold value..
|Anti-rotation clip for a twist lock fuel injection|
A fuel injector for an internal combustion engine having an elongated body with a fuel inlet end and a fuel discharge end. The injector body includes an outwardly extending plate attached at a position between its ends and this plate includes at least one radially outwardly extending tab so that the cross-sectional shape of the plate is noncircular.