|| List of recent Internal Combustion Engine-related patents
| Method for automatically switching off and starting an internal combustion engine of a motor vehicle with an automatic transmission, during or after an overrun phase|
An internal combustion engine in a motor vehicle is automatically shut off and started by way of a start-stop device, wherein an automatic shut-off process is initiated during a coasting operation phase of the internal combustion engine, and an automatic start process is initiated when at least one activation command occurs. For shutting off the internal combustion engine in the coasting operation phase, a gas exchange in cylinders of the internal combustion engine is at least almost completely suppressed and, at the same time, a torque converter lock-up clutch disposed between the internal combustion engine and the transmission for power transmission purposes is actuated such that the torque converter lock-up clutch remains or is at least almost completely engaged..
| Vehicle with engine start-stop device and method of operating same|
A vehicle having an internal combustion engine can be switched off automatic and can be started automatically by way of an engine start/stop device. The vehicle includes at least one electric energy store and at least one electric consumer.
| Apparatus for detecting imbalance abnormality in air-fuel ratio between cylinders in multi-cylinder internal combustion engine|
An apparatus for detecting imbalance abnormality in an air-fuel ratio between cylinders in a multi-cylinder internal combustion engine is disclosed. The apparatus includes an imbalance determining unit programmed to determine imbalance in an air-fuel ratio of a first cylinder belonging to a cylinder group based upon a difference value between an index value correlative with a crank angular speed detected in the first cylinder and an index value correlative with a crank angular speed detected in a second cylinder belonging to another cylinder group, and further a correction unit programmed to correct the difference value for the first cylinder based upon the index value detected in at least one of other cylinders belonging to the same cylinder group as that of the first cylinder..
| Control device and control method for vehicle|
A vehicle includes: an exhaust gas recirculation system in an internal combustion engine for recirculating part of exhaust gas to an intake passage of the internal combustion engine via a recirculation valve; and a cooling device for cooling recirculated gas, recirculated by the exhaust gas recirculation system, with refrigerant. An engine ecu informs a failure of the cooling device with a display unit when a cooling efficiency for cooling the recirculated gas, determined on the basis of a state value of the recirculated gas, becomes lower than a first determination value.
| Hybrid vehicle|
A hybrid vehicle according to one of embodiments of the present invention generates a driving torque using an internal combustion engine, an motor generator, and the like when a shift position is a driving position, the driving torque being determined based on a selected driving mode (e.g., a power mode to give priority to the power, and a normal mode to give priority to fuel consumption) and an accelerator operation amount. On the other hand, when the shift position is a neutral position, the vehicle maintains a rotational speed of the engine at a constant speed (including zero when the engine is stopped) regardless of the accelerator operation amount.
| Control device for vehicle drive device|
A control device that controls a vehicle drive device in which a rotary electric machine is provided in a power transfer path that connects between an internal combustion engine and wheels. Engagement of a second engagement device is started when a change in shift range from a stop range to a running range is detected when output torque of the rotary electric machine is zero with the internal combustion engine rotating and with both the first engagement device and the second engagement device disengaged.
| Method and arrangement in a hybrid vehicle|
In a method and an arrangement for powering up a dc distribution system in a hybrid vehicle power train, the power train includes an electric storage system, an internal combustion engine, an electric motor/generator, a clutch device to connect the electric motor/generator to the internal combustion engine, a power electronics unit with a voltage regulator connected to the electric motor/generator, and an electronic control unit for controlling the power train. The electric storage system and the electric motor/generator are connectable to one or more electrical loads for driving the vehicle.
| Exhaust purification system of internal combustion engine|
An exhaust purification system of an internal combustion engine provided with an exhaust purification catalyst which reacts nox and hydrocarbons. The exhaust purification catalyst includes an upstream side catalyst and a downstream side catalyst.
| Variable turbine/compressor geometry|
A variable turbine/compressor geometry for an exhaust gas turbocharger of an internal combustion engine includes a blade bearing ring having guide blades rotatably mounted therein and a cover disc which is arranged on the face end of the guide blades. At least one gas guide channel may run through at least one guide blade.
| Universal power tool battery pack coupled to a portable internal combustion engine|
A portable internal combustion engine and a charging device that generates ac power are supported on a manually movable frame. A coupling mechanism which can include a starter circuit and starting device, or a charging circuit and charging device, or both device couples a battery receptacle terminal block to the internal combustion engine.
| Wear protection layer for piston rings|
The present invention relates to a wear-resistant layer, which is preferably used on piston rings for internal combustion engines. The wear-resistant layer comprises: 15-25% by weight iron (fe), 10-25% by weight tungsten carbide (wc), 30-40% by weight chromium (cr), 10-25% by weight nickel (ni), 10-25% by weight molybdenum (mo), 1-10% by weight carbon (c), 0.1-2% by weight silicon (si), wherein cr is present in elemental form and/or as a carbide in the form of cr2c3.
| Fuel filter of an internal combustion engine, and filter element of a fuel filter|
Disclosed is a fuel filter (10) for fuel, in particular diesel fuel, of an internal combustion engine, in particular of a motor vehicle, and to a filter element of such a fuel filter. A housing (12) has at least one fuel inlet (26) for the fuel to be cleaned, at least one fuel outlet (18) for cleaned fuel, and at least one water outlet (30) for water which has been separated from the fuel.
| Fuel filter of an internal combustion engine and filter element of a fuel filter|
A fuel filter has a housing with fuel inlet for fuel to be purified, fuel outlet for purified fuel, and water outlet for water separated from the fuel. A filter element is arranged in the housing and separates seal-tightly fuel inlet from fuel outlet.
| Inter-cylinder air-fuel ratio variation abnormality detection apparatus for multicylinder internal combustion engine|
A first parameter correlated with a degree of fluctuation of output from an air-fuel ratio sensor is calculated, and whether or not the calculated first parameter has a value between a predetermined primary determination upper-limit value α1h and a primary determination lower-limit value is determined. Such forced active control as reduces an air-fuel ratio shift in one of the cylinders which is subjected to a most significant air-fuel ratio shift is performed when the calculated first parameter is determined to have a value between the predetermined primary determination upper-limit value and the primary determination lower-limit value.
| Supercharged internal combustion engine|
A supercharged internal combustion engine may include an exhaust gas turbocharger which is integrated into an exhaust section on the turbine side and into an intake section on the compressor side. An exhaust gas recirculation line may connect the exhaust section and the intake section.
| Method and device for controlling an injection valve|
An activation signal for activating a solenoid valve, in particular, a fuel injector of an internal combustion engine, has a pickup phase and a holding phase. The pickup phase has a comparatively high current and a maximally permissible duration, and the holding phase has a comparatively low current and a minimally permissible duration (mhd).
| Common rail fuel injection system|
A common rail fuel injection system includes injectors having a fuel intake port and being provided for respective cylinders of a multi-cylinder diesel internal combustion engine, a common rail accumulating pressurized fuel, a high-pressure supply pump supplying high-pressure fuel, a fuel supply pipe causing the common rail and the high-pressure supply pump to communicate with each other. The fuel injection pipes communicating with pressure supply ports provided in the common rail and causing the injectors and the pressure supply ports to communicating with each other.
| Fuel system with leakage detection means|
A method is provided for detecting a leakage in a fuel supply system of an internal combustion engine. The fuel supply system includes a fuel line system with fuel line sections and a pressure monitoring system with monitoring segments, a set of valves, and a pressure sensor.
| Spark ignition type internal combustion engine|
A base in-cylinder volume is corrected by a learned value to calculate a corrected in-cylinder volume. A difference of a crank angle which gives the corrected in-cylinder volume and the base crank angle is calculated as a “crank angle correction value”, and a base ignition timing is corrected by the crank angle correction value and feedback correction value.
| Crankshaft for variable displacement internal combustion engine|
A crankshaft includes a plurality of crankpins. The crankpins are defined on the crankshaft and are longitudinally spaced apart from each other along a rotational axis.
| Internal combustion engine|
The present invention aims at effectively emitting an electromagnetic wave to a combustion chamber from an emission antenna in an internal combustion engine that promotes combustion of an air fuel mixture utilizing the electromagnetic wave. The present invention is directed to an internal combustion engine including: an internal combustion engine main body formed with a combustion chamber; and an electromagnetic wave emission device that emits an electromagnetic wave to the combustion chamber from an emission antenna.
| Adjustable camshaft drive|
A camshaft drive includes a drive shaft having at least one cam for actuating a valve of an internal combustion engine. A shaft-in-shaft system is disposed parallel to the drive shaft and has an inner shaft and an outer shaft each having at least one cam for actuating a valve.
| Lost-motion variable valve actuation system with cam phaser|
Devices and related methods are disclosed that generally involve variable actuation of engine valves. In one embodiment, a valve train for a split-cycle internal combustion engine or an air hybrid split-cycle engine is provided that includes a cam phaser, a dwell cam, an adjustable mechanical element for performing a variable valve actuation function, and/or a valve seating control device.
| Internal combustion engine|
An internal combustion engine includes a lift amount adjusting apparatus, a valve opening-closing timing control apparatus, a first assist portion, a second assist portion, and an engine control portion. The engine control portion performs a lift amount adjustment control controlling the lift amount adjusting portion to reduce a push force that the valve applies on the camshaft when the camshaft rotates in a case where the engine control portion receives start information of the internal combustion engine, controls the phase changing portion thereafter to change the relative rotational phase toward the advanced angle direction or toward the retarded angle direction on a basis of a predetermined condition, controls the lift amount adjusting portion thereafter to make the lift amount reach a predetermined amount corresponding to the predetermined condition, and drives a starter motor of the internal combustion engine thereafter..
| Valve timing control apparatus for internal combustion engine|
A valve timing control apparatus includes: a first lock mechanism being arranged to lock the vane rotor to a first position between the most retard angle position and the most advance angle position with respect to the housing, and to release the lock; and a second lock mechanism being arranged to lock the vane rotor with respect to the housing, to a second position which is between the most retard angle position and the most advance angle position, and is on the retard angle side of the first position, and to release the lock.. .
| Internal combustion engine|
An internal combustion engine includes a variable valve timing control apparatus including a driving-side rotating member rotating about a rotary axis by rotational force transmitted from a crankshaft, a driven-side rotating member including at least one fluid pressure chambers partitioned and formed with at least one advanced angle chambers and at least one retarded angle chambers and integrally rotating with a camshaft for opening and closing a valve, and a lock mechanism configured with a lock member provided at one of the driving-side rotating member and the driven-side rotary member to be engageable and disengageable with a recessed portion formed at the other of the driving-side rotating member and the driven-side rotary member, and an engine control unit for stopping the internal combustion engine to position a portion where the lock mechanism is formed below a virtual line passing through the rotary axis when the internal combustion engine is stopped.. .
| Piston for internal combustion engine|
A piston for an internal combustion engine, including a crown portion that defines a combustion chamber, a ring-shaped cooling channel formed in the crown portion, through which a cooling oil flows, and a plurality of concave portions formed on at least one side of the cooling channel, in an axial direction of the piston, each of the plurality of concave portions having a curved surface.. .
| Piston for internal combustion engine|
A piston for an internal combustion engine comprises a crown, a skirt section extending from the crown, and an oil ring groove. The piston further comprises a drain hole and a cooling channel.
| Cooling structure of internal combustion engine|
A cooling structure of an internal combustion engine includes a cylinder block, a cylinder head and a gasket. In a cross-section defined through an inter-bore region and perpendicular to the cylinder bank center line, a first end and a second end which face a cylinder bank center line are disposed nearer to the cylinder bank center line than a third end and a fourth end which face the cylinder bank center line, respectively.
| Combustion system|
A combustion system includes a reformer reforming a fuel on a catalyst to increase a combustion energy generated by the fuel per unit quantity of the fuel. The system includes an injection unit injecting a reformed fuel and a non-reformed fuel in such a manner that the reformed fuel is annularly distributed along an inner circumferential wall of a cylinder and the non-reformed fuel is distributed inside of the annularly distributed reformed fuel.
| Drive train for a motor vehicle|
A drive train for a motor vehicle comprises an internal combustion engine which has a crankshaft and is designed to provide drive power for the motor vehicle. A clutch arrangement has an input member and at least one output member, the input member being connected to the crankshaft.
| Vehicle transmission system and vehicle drive system comprising the same|
A transmission system for a hybrid vehicle is disclosed. The system includes a primary input shaft for receiving drive from a primary vehicle drive motor, such as an internal combustion engine.
| Valve timing control system for internal combustion engine and lock release mechanism of valve timing control apparatus for internal combustion engine|
A valve timing control system includes: a check valve which is provided between an oil pump driven by the engine, and the lock release passage; an electromagnetic valve which is disposed between the check valve and the lock release passage; an accumulator disposed between the check valve and the electromagnetic valve; and a passage which is disposed between the check valve and the electromagnetic valve, in which the flow of the oil is stored, and which is arranged to release the restriction of the lock mechanism by a pressure of the accumulator by energizing the valve driving solenoid of the electromagnetic valve.. .
| Air-fuel ratio control device for internal combustion engine|
An air-fuel ratio control apparatus for an internal combustion engine according to an embodiment of the invention (the present control apparatus) sets a target air-fuel ratio to a target rich air-fuel ratio when it is determined on the basis of the output value voxs of a downstream air-fuel ratio sensor 67 that the oxygen adsorption amount of a catalyst 43 tends to be excessive, and sets the target air-fuel ratio to a target lean air-fuel ratio when it is determined on the basis of the output value voxs that the oxygen adsorption amount of the catalyst 43 tends to be insufficient. Further, the present control apparatus determines whether or not an operation state in which a large amount of nitrogen oxide flows into the catalyst 43 is reached on the basis of “whether a predetermined condition is fulfilled”, and makes the target rich air-fuel ratio obtained when the predetermined condition is fulfilled less than the target rich air-fuel ratio obtained when the predetermined condition is not fulfilled.
| Method of controlling an exhaust gas temperature of an internal combustion engine|
A method of controlling an exhaust gas temperature at a particulate filter inlet is disclosed. The particulate filter is located in an exhaust system of an internal combustion engine.
| Hybrid electric turf mower with power shed and power boost|
A turf mower has one or more electrically powered cutting units and a traction drive system that is operatively powered by an internal combustion engine. A motor generator is also powered by the engine and is operatively connected to the engine and the traction drive system.
| Method of manufacturing a valve for an internal combustion engine|
A method of manufacturing a valve for an internal combustion engine, comprises: (i) a primary step of forging a bulging portion at one end of a rod material to form a generally disk-shape valve head of the valve having a tapered periphery; (ii) an thickness adjustment step of machining an excessively thick portion of the valve head; and (iii) a secondary step of forging a peripheral region of the valve head to create radial slip deformations therein to form a valve face of the valve head. In the step of thickness adjustment, only the front end of the disk-shape valve head is machined without harming dense grain flow lines induced in the tapered face (16a) in the primary forging while advantageously saving the valve material and reducing thickness adjustment time.
| Retrofitting performance camshafts to an internal combustion engines with hemispherical combustion chambers|
A method for installing a camshaft retrofitting kit into an internal combustion engine with a plurality of hemispherical combustion chambers in order to provide increased power. A variable camshaft timing (vct) assembly and a plurality of displacement-on-demand (dod) control solenoids are replaced with a vct plug and a plurality of dod plugs respectively.