Entries |
Document | Title | Date |
20080245322 | Valvetrain Control Arrangement - A valvetrain control arrangement for an internal combustion engine. A fluid-working machine ( | 10-09-2008 |
20080264362 | ELECTROMAGNETICALLY DRIVEN VALVE - An electromagnetically driven valve operated by electromagnetic force includes a stem, a driven valve, a swing member, and a first and second electromagnet. The first electromagnet and the second electromagnet include: a first and second core made of magnetic material, respectively; and a first and second coil, respectively, which are wound around the first core and the second core, respectively. The first coil and the second coil have the same number of turns, and are connected with each other. A magnetic path width of the second core is larger than a magnetic path width of the first core. When the swing member is located at a neutral position at which the swing member is in contact with neither the first electromagnet nor the second electromagnet, the distance between the second core and the swing member is smaller than the distance between the first core and the swing member. | 10-30-2008 |
20080276889 | Electromagnetic Actuator with Two Electromagnets Comprising Magnets Having Different Forces and Method of Controlling an Internal Combustion Engine Valve Using Same - An electromagnetic actuator including an actuating member associated with an armature and able to move between two extreme positions under the action of an elastic member and two electromagnets that attract the armature to one of the extreme positions, where the electromagnets each include a coil, a core for channeling a flux of the coil so that it forms a return path in the armature, and permanent magnets associated with the core so that the latter channels a flux of the permanent magnets so that it forms a return path in the armature, where the permanent magnets of one of the electromagnets exert a force on the armature sufficient to retain the armature in the associated extreme position against the springs, and where the permanent magnets of the other electromagnet exerts a force on the armature insufficient to retain the armature in the associated extreme position against the springs. | 11-13-2008 |
20080283004 | ELECTROMECHANICAL VALVE TIMING DURING A START - A method for starting an internal combustion engine with electrically actuated valves, the method comprising during at least a run-up in engine speed of engine starting, adjusting intake valve timing of an electrically actuated valve of a cylinder to provide a desired air amount in said cylinder, based on at least an operating condition of said engine. | 11-20-2008 |
20080308051 | Solenoid Valve Assembly for a Combustible Gas Supply Device to an Endothermic Engine - The solenoid valve assembly ( | 12-18-2008 |
20080308052 | Electromagnetically-driven valve - An electromagnetically-driven valve includes: intake valves that are arranged side by side; a disk that pivots using applied electromagnetic force to reciprocate the intake valves in a predetermined direction; and a connection member that connects the intake valves to each other. The connection member is provided with a needle bearing into which the pivot motion of the disk is input. The pivot motion of the disk causes a displacement between the needle bearing and the disk in a direction that intersects with the predetermined direction. An oil passage through which oil is supplied to the needle bearing is formed in the connection member. | 12-18-2008 |
20080314341 | Electromagnetically-driven valve - An electromagnetically-driven valve includes intake valves that are provided in a gasoline engine and that are arranged side by side; a valve plate that connects the intake valves to each other, wherein driving force that is generated by electromagnetic force is transferred to the valve plate; and a changing mechanism that is fitted to the valve plate. The changing mechanism changes the valve drive state between the two-valve drive state, in which both of the intake valves are driven, and the one-valve drive state, in which one of the intake valves is driven and the other intake valve is stopped. | 12-25-2008 |
20090000580 | Cylinder Head Of An Internal Combustion Engine Having An Electrohydraulic Valve Controller - A cylinder head of an internal combustion engine having an electrohydraulic valve controller which includes a master unit ( | 01-01-2009 |
20090013944 | DEVICE FOR CONTROLLING THE MOVEMENT OF A VALVE, IN PARTICULAR OF AN INTAKE VALVE, OF AN INTERNAL COMBUSTION ENGINE - The device is adapted to control the movement of a valve ( | 01-15-2009 |
20090071422 | Electronic valve system - An internal combustion engine comprises a number of cylinders. The cylinders have electronically activated intake valves. Ignition coils for the cylinders are responsive to respective ignition signals such that charge accumulates in a coil for a cylinder when the ignition signal for the cylinder has a first state and then the charge causes ignition for the cylinder when the ignition signal for the cylinder changes to a second state. In response to detecting an intake valve fault in respect of a cylinder, the ignition signal for the cylinder is held in the first state for a number of cycles of the internal combustion engine, and is then switched to a second state to safely discharge the primary coil without combustion in the cylinder. | 03-19-2009 |
20090078221 | ADJUSTING BALLISTIC VALVE TIMING - A method to adjust timing of an electrically actuated valve, said electrically actuated valve operating in a cylinder of an internal combustion engine, the method comprising during a cycle of said cylinder, opening said electrically actuated valve at a first valve opening position without activating a valve opening coil, and closing the valve at a first closing position; and during a second subsequent cycle of said cylinder, opening said electrically actuated valve at a second opening position that is varied based on the crankshaft angle at which said first closing occurs, where the second opening position is increased as said the crankshaft angle at which the first closing occurs increases. | 03-26-2009 |
20090090318 | METHOD FOR CONTROLLING AIR-FUEL RATIO FOR AN ALTERNATING VALVE ENGINE - A method for controlling the air-fuel ratio of an internal combustion engine operating with alternating intake valves is presented. According to the method, engine air-fuel ratio can be adjusted by changing valve timings or fuel during a cylinder cycle. | 04-09-2009 |
20090101090 | CONTROLLER OF VARIABLE VALVE ACTUATOR - The present invention provides a variable valve mechanism control device that is capable of reducing the power consumption and rating of an electric motor by allowing camshaft rotary inertia torque to reduce spring reaction force during a valve lift. Camshaft rotary inertia force is increased to a value not smaller than a predetermined value before the start of a valve lift. During the time interval between the instant at which the valve lift starts and the instant at which the maximum lift is provided, the spring reaction force of a valve spring is used as deceleration torque for the camshaft rotary inertia force. During the time interval between the instant at which the maximum lift is provided and the instant at which the valve lift terminates, the spring reaction force is used as acceleration torque for the camshaft rotary inertia force. The camshaft rotary inertia force cancels the spring reaction force so that motor torque generated during a valve lift is composed of counter-friction torque only. | 04-23-2009 |
20090120388 | Electro-hydraulic hybrid camshaft phaser - A hybrid camshaft phaser comprising a conventional vane-type hydraulically-actuated phaser to which is coupled an electric motor and gear transmission. The transmission output shaft is coupled to the phaser rotor, optionally via an intermediate clutch mechanism. Under engine operating conditions in which the response of a hydraulic phaser is poor, the electric motor operates to augment the hydraulic actuation. Such conditions include at least low ambient temperatures at which oil viscosities are high, and high ambient temperatures and/or low engine speeds at which oil pressures are low. Preferably, at engine speeds above about 1500 rpm, the electric motor is de-energized. | 05-14-2009 |
20090133648 | Variable valve actuator with a pneumatic booster - Actuators, and corresponding methods and systems for controlling such actuators, provide independent valve control with a large initial or opening force. In an exemplary embodiment, an actuator includes a driver further including a housing defining a longitudinal axis and first and second directions, an actuation mechanism capable of generating actuation force at least in the first direction, and a rod with one end operably connected with at least one part of the actuation mechanism and with the other end available for an operable connection with a load such as an engine valve; at least one return spring operably connected with the rod through a spring retainer assembly and biasing the rod in the second direction; and a pneumatic booster further including a pneumatic cylinder, a pneumatic piston operably connected with the rod through the spring retainer assembly and biasing the rod in the first direction, a charge mechanism providing a controlled fluid communication between the pneumatic cylinder and a high-pressure gas source, and a bleed mechanism providing a controlled fluid communication between the pneumatic cylinder to a low-pressure gas sink. | 05-28-2009 |
20090151666 | VARIABLE VALVE TIMING APPARATUS - A variable valve lift apparatus is mounted above a valve stem of a valve for opening and closing the valve. The apparatus includes an upper and a lower housing; an upper electromagnet in the upper housing; a lower electromagnet in the lower housing; at least one permanent magnet that penetrates the electromagnets; an upper plate between the permanent magnet and the upper housing; and a lower plate between the permanent magnet and the lower housing, which opens and closes the valve. The apparatus may also include an upper coil spring assembly mounted in the upper housing, and a lower coil spring assembly mounted in the lower housing, each coil spring assembly including at least two coil springs. The apparatus may also include an upper damper at the top of the upper housing, and a lower damper at the bottom of the lower housing. Oil may be provided in the housings. | 06-18-2009 |
20090151667 | METHOD FOR DETERMINING THE INSTANT WHEN THE MOVABLE ELEMENT OF A SOLENOID VALVE REACHES ITS END POSITION FOLLOWING ENERGIZATION OF THE SOLENOID, BY MEANS OF AN ANALYSIS OF THE SWITCHING FREQUENCE OF THE SOLENOID DRIVING CURRENT - The movable element of a solenoid valve is displaced by means of application to the solenoid of alternating phases at constant voltage and at zero voltage, so as to give rise to an alternation of phases of charging and discharging of the solenoid (switching), corresponding to increases and decreases of current around a substantially constant current value. The alternating phases at constant voltage and at zero voltage are controlled so that the phase at constant voltage is maintained for a pre-set time and the phase at zero voltage is terminated when the decreasing current reaches a pre-set value. Alternatively, it is possible to envisage that the phase at constant voltage will be terminated when the increasing current reaches a pre-set value and the phase at zero voltage is maintained for a pre-set time, or else again that both the phase at constant voltage and the phase at zero voltage will be terminated when the increasing current or decreasing current reaches a pre-set value. In any case, the duration of each cycle of charging and discharging of the solenoid is constantly monitored. It is thus possible to identify the instant at which the movable element of the solenoid valve reaches its end-of-travel position as the instant that separates two successive cycles of charging and discharging of the solenoid having durations that differ from one another by a value higher than a pre-set threshold value. | 06-18-2009 |
20090151668 | DEVICE FOR COUPLING VALVE ACTIVATING LEVERS OF AN INTERNAL COMBUSTION ENGINE - Device for coupling two valve activating levers of an internal combustion engine with at least one carrier body ( | 06-18-2009 |
20090165738 | Spark-ignited gas engine - Conventional spark-ignited gas engines with a mechanically controlled fuel feed valve have several disadvantages in terms of operation, expensive control, irregular combustion or unstable and unreliable operation, which in turn can lead to operational and mechanical problems. In order to eliminate these disadvantages it is suggested, according to the invention, that a controlled valve is installed in the fuel line upstream of the fuel feed valve so that in the fuel line between fuel feed valve and controlled valve a defined intermediate volume is created and gaseous fuel is fed via the controlled valve into the intermediate volume. | 07-02-2009 |
20090183700 | VALVE TRAIN OF AN INTERNAL COMBUSTION ENGINE - A valve train of an internal combustion engine with at least one camshaft ( | 07-23-2009 |
20090205592 | Fluid Control Valve and Valve Timing Control Apparatus - To provide a fluid control valve capable of providing appropriate responsiveness of the valve member or capable of compensating for fluid shortage in the case of low fluid pressure, by positively controlling the oscillation condition of the valve member according to such conditions as the temperature or pressure of the fluid. | 08-20-2009 |
20090205593 | Flow adjusting valve for combustion gas - A flow adjusting valve for combustion gas being provided with an air chamber between its air intake port and its air output port, the air chamber has an inlet connecting with the air intake port, and the air chamber is provided with a valve plug to block between the air intake port and the inlet, the valve plug is always kept at a position to close the inlet of the air chamber; when the electromagnetic device is electrically turned on, it generates a magnetic repulsion force against the permanent magnet to push the valve plug to open the inlet; when a transient pressure of combustion gas is larger than the magnetic repulsion force, the valve plug will close immediately, this can prevent the situation of gas leaking induced by overly large pressure of the gas supplied. | 08-20-2009 |
20090217892 | GAS EXCHANGE VALVE ACTUATOR FOR A VALVE-CONTROLLED INTERNAL COMBUSTION ENGINE - A gas exchange valve actuator for a valve-controlled internal combustion engine is equipped with a rotor, which is to be coupled to a valve member, and a stator, wherein the rotor has at least two stacks, which are arranged at a predetermined distance from one another, of superposed permanently magnetic bars, and the stator is formed, at least partially, from a soft-magnetic material and has at least two pairs of teeth with mutually opposed teeth, of which each pair of teeth receives one of the two stacks between them in each case, while forming an air gap, and wherein the stator has at least two magnetically conductive inner regions which are located between the two stacks and arranged at a predetermined distance from one another in the direction of movement of the rotor and which are at least partially surrounded, in each case, by an essentially hollow-cylindrical coil arrangement, the central longitudinal axis of which is oriented approximately transversely to the direction of movement of said rotor. | 09-03-2009 |
20090241872 | Temperature Sensing Coordination with Engine Valve Timing Using Electric Valve Actuator - A method of operation for an engine including an electrically actuated engine valve in a cylinder head, with at least an actuator coupled to the valve, the method including applying a potential to generate a current indicative of temperature in the actuator at least partially during a substantially non-moving condition of the actuator and adjusting a timing of the application of the potential based on valve location in the cylinder head. | 10-01-2009 |
20090250021 | FLUID CONTROL SYSTEMS EMPLOYING COMPLIANT ELECTROACTIVE MATERIALS - The present invention includes fluid control systems employing compliant electroactive materials. | 10-08-2009 |
20090255493 | Variable Valve Operating Device, Control Method of Variable Valve Operating Device, and Vehicle Equipped with Variable Valve Operating Device - In a hybrid vehicle, on a start of an engine, when an engine water temperature is low and there is a need of advancing open and close timings of an intake valve from their most delayed positions, electric power is supplied to a VVT motor either via a first route or via a second route. Even when the state of charge of a low voltage battery is very low and insufficient, the required electric power is supplied from a DC-DC converter to the VVT motor without passing through the low voltage battery. On the start of the engine, such start control ensures an adequate change of the open and close timings of the intake valve set in the stop state of the engine. | 10-15-2009 |
20090266318 | SLIDING MODE CONTROL APPARATUS AND ADJUSTING METHOD - A sliding mode control apparatus. When displacing a controlled object to which an urging force is applied by an elastic member from one displacement end to the other displacement end, the control apparatus sets a switching hyperplane and controls the controlled object by using a sliding mode control in such a manner that a state quantity of the controlled object is converged on the switching hyperplane. In the sliding mode control, the control apparatus switches an operation mode for controlling the controlled object when the controlled object passes an operation switching point. The control apparatus detects disturbance in the sliding mode control and a change with time of the elastic member, and changes the operation switching point in accordance with both of the detected disturbance and the detected change with time. | 10-29-2009 |
20090266319 | SYSTEM AND METHOD FOR PROVIDING HYDRAULIC VALVE LASH COMPENSATION FOR ELECTRICALLY ACTUATED INTERNAL COMBUSTION ENGINE POPPET VALVES - A system and method for assembling an electrical valve actuator to a cylinder head is described. The system and method provide for lower assembly cost, improved concentricity between valve actuator armatures and valve stems, as well enabling lower inertia valve actuators. | 10-29-2009 |
20090288619 | ELECTROMAGNETIC VALVE ACTUATOR AND VALVE GUIDE HAVING REDUCED TEMPERATURE SENSITIVITY - An internal combustion engine includes an electromagnetic valve actuator having an armature between upper and lower electromagnets with a stem extending through one electromagnet and guided by a bushing with increased clearance about at least a portion of the inner circumference in at least a middle portion of the bushing to reduce oil shear length and associated viscous friction in the actuator. A two-piece intake/exhaust valve guide includes a lower half with a stepped outer diameter cooperating with a counter-bored hole in the cylinder head to provide a positive stop. The upper and lower halves of the valve guide have increased clearance relative to the valve stem around at least a portion of the inner circumference to reduce oil shear length and associated viscous friction. Reducing viscous friction of the actuator and associated valve guide improves system robustness by decreasing the system sensitivity to temperature. | 11-26-2009 |
20090301416 | VARIABLE VALVE TIMING CONTROL APPARATUS OF INTERNAL COMBUSTION ENGINE - A variable valve timing control apparatus of an internal combustion engine has a drive rotary member, a driven rotary member, and an electric motor which rotates with the drive rotary member and changes a rotational phase of the driven rotary member relative to the drive rotary member through a current application to a coil. The electric motor is covered with a cover member with a clearance interposed therebetween, and a bearing member is installed between an outer periphery of the electric motor and an inner periphery of the cover member for rotatably supporting the electric motor. The bearing member defines a space portion between an end surface, in a rotation shaft direction, of the electric motor and an opposing inner end surface of the cover member, and the space portion is supplied with lubricating oil by a lubricating oil supplying mechanism. | 12-10-2009 |
20100018481 | VALVE CONTROL SYSTEM WITH MALFUNCTION DETECTION - The invention relates to a valve control system for an engine including at least one cylinder ( | 01-28-2010 |
20100059003 | ENGINE ELECTROMAGNETIC VALVE OPERATING DEVICE - In an engine electromagnetic valve operating device ( | 03-11-2010 |
20100059004 | OTTO-CYCLE INTERNAL COMBUSTION ENGINE - An Otto cycle internal combustion engine ( | 03-11-2010 |
20100071642 | Exhaust valve device - An exhaust valve device includes an exhaust valve formed by a valve body, a valve stem and a valve element, which opens and closes an exhaust passage provided in the valve body, mounted on the valve stem that is inserted into and supported rotatably by the valve body; and an actuator that drives the exhaust valve to open and close. The actuator includes an electric actuator, and an opening detection sensor to detect an opening of the exhaust valve. Further, the electric actuator and the opening detection sensor are disposed coaxially, a connecting shaft that connects the two is disposed parallel to and offset from the valve stem of the exhaust valve, and the connecting shaft and valve stem are connected by a link mechanism. | 03-25-2010 |
20100077973 | VARIABLE TRAVEL VALVE APPARATUS FOR AN INTERNAL COMBUSTION ENGINE - An apparatus includes a valve and an actuator. The valve has a portion movably disposed within a valve pocket defined by a cylinder head of an engine. The valve is configured to move relative to the cylinder head a distance between a closed position and an opened position. The portion of the valve defines a flow opening that is in fluid communication with a cylinder of an engine when the valve is in the opened position. The actuator is configured to selectively vary the distance between the closed position and the opened position. | 04-01-2010 |
20100089347 | DUAL VARIABLE VALVE SOLENOID MODULE - A solenoid valve module includes a first solenoid valve having a first solenoid portion and a first valve body and a second solenoid valve having a second solenoid portion and a second valve body. The first valve body and the second valve body are integrally formed by a solenoid housing. The solenoid valve module is secured to a surface of an engine to provide hydraulic control for an engine component. | 04-15-2010 |
20100108002 | MULTI-CAM ELECTRIC VALVE MECHANISM FOR ENGINE - A multi-cam electric valve mechanism for engine is disclosed, which comprises: a motor fixed on a cylinder; a motor shaft wherein one side of it connected to the motor and rotated accordingly and the other side of it symmetrically provided with a plurality of rotors whose shafts are perpendicular to the motor shaft; a ring-shaped cam with a plurality of wave-shaped grooves on the circumference thereof corresponding to the rotors and for setting same; a rotation-stopping lever connected to the cylinder and cam respectively to let the cam linearly move along with it; and a valve lever wherein one side of it connected to the cam and the other side of it connected to a valve. | 05-06-2010 |
20100180840 | METHOD FOR CONTROLLING AIR-FUEL RATIO FOR AN ALTERNATING VALVE ENGINE - A method for controlling the air-fuel ratio of an internal combustion engine operating with alternating intake valves is presented. According to the method, engine air-fuel ratio can be adjusted by changing valve timings or fuel during a cylinder cycle. | 07-22-2010 |
20100294220 | INTERNAL COMBUSTION ENGINE WITH TWO INTAKE VALVES PER CYLINDER WHICH ARE AC TUATED HYDRAULICALLY AND HAVE DIFFERENTIATED RETURN SPRINGS - An internal combustion engine comprises at least two intake valves per cylinder, each of them provided with respective spring return means which push the valve towards a closed position. The intake valves of each cylinder are controlled by a single cam of an engine camshaft, through a single tappet actuated by said cam and through a hydraulic system. The hydraulic system comprises a master cylinder having a piston positively connected to said tappet and two hydraulic actuators respectively associated to the two intake valves and which are both hydraulically connected to a common pressure chamber of said master cylinder. The return spring means associated to the intake valves of one and the same engine cylinder have predetermined loadS and/or rigidities which are different from each other, in such a way that said intake valves have different lift profiles, so as to cause a swirl motion of the air fed into the engine cylinder, which allows to improve the air-fuel mixing. | 11-25-2010 |
20100294221 | SET CONTAINING AN ELECTROMAGNET AND AN ELECTROMAGNETIC PALETTE, AND VALVE ACTUATOR COMPRISING SUCH A SET - The invention relates to a set containing an electromagnet ( | 11-25-2010 |
20110088643 | Valve train device - In a valve drive train device, in particular for a valve drive of an internal combustion engine, with a switching unit comprising an actuator with a solenoid unit and with a control unit for monitoring switching operations of the switching unit provided for switching an axially displaceable cam element by means of a switch gate, the control unit for monitoring the switching unit is taking into account at least one characteristic value of a voltage integral over a voltage which is induced in a coil of the switching unit during the switching operation and is adjusting the value with respect to a characteristic limit value stored in the control unit. | 04-21-2011 |
20110277711 | METHOD AND SYSTEM FOR INTERNAL COMBUSTION ENGINE - It is provided an improved internal combustion engine unit. The engine unit has a piston moving in a cylinder enclosing cylinder volume, an intake valve controlling closing and opening of an intake aperture connecting the cylinder volume to an intake manifold, and an exhaust valve controlling closing and opening of an exhaust aperture connecting the cylinder volume to an exhaust manifold. The improved engine unit includes a separating aperture between the cylinder and a separation chamber, and a separating valve adapted for controlling closing and opening the separating aperture. The separation chamber is connectable to the intake manifold and to the exhaust manifold, respectively, by the intake and exhaust apertures. Opening both the separating valve and the exhaust valve enables gas flow from the cylinder volume to the exhaust manifold through the open separating aperture, the separation chamber and the open exhaust aperture. Opening both the separating valve and the intake valve enables gas flow from the intake manifold to the cylinder volume through the open intake aperture, the separation chamber and the separating aperture. The intake valve and the exhaust valve are driven by solenoids controlled in turn by an engine computer. The separating valve is driven by a camshaft driven in turn by the engine. | 11-17-2011 |
20120031357 | Feed Forward Control for Electric Variable Valve Operation - Periodic torque disturbances that affect cylinder valve operation are anticipated, and an appropriate reaction torque is provided by an electric motor to counteract the periodic torque disturbances to position a cylinder valve at a desired position. | 02-09-2012 |
20120227690 | Electronic Engine Control Unit And Method Of Operation - An electrical engine comprising an engine valve, where the engine valve opens and closes upon activation; a piston connected to the engine valve, where the engine valve opens and closes a set of intake and exhaust ports within the piston; a solenoid attached to the engine valve, where the solenoid receives a first signal; an electronic engine control unit housed within the electrical engine, where the electronic engine control unit sends the first signal to the solenoid; a first signal wire between the electronic engine control unit and the solenoid, where the first signal wire permits passage of the first signal; an engine sensor connected to the piston, where the engine sensor gages how the piston operates; and a second signal wire between the electronic engine control unit and the engine sensor, wherein the second signal wire sends a second signal from the sensor to the electronic engine control unit. | 09-13-2012 |
20120266832 | ENGINE ELECTRONIC VALVE ACTUATION - A head assembly for an internal combustion engine includes an electromagnetic valve actuation system. The head has an intake or exhaust passage defined therein. A valve is disposed in the passage and is operable to selectively open and close the passage. The head has a cooling passage defined therein for passage of a cooling fluid. An electromagnetic actuator has a piston in mechanical communication with the valve and a coil in fluid communication with the cooling passage. The electromagnetic actuator is operable to move the valve between a closed and an open position. | 10-25-2012 |
20120318217 | VALVE DEVICE FOR INTERNAL COMBUSTION ENGINES - A valve device for an internal combustion engine includes a drive unit. A drive housing in which the drive unit is arranged. A valve unit is configured to be moved by the drive unit. The valve unit comprises a valve rod and a valve closure member. A flow housing comprises a fluid inlet channel and a fluid outlet channel. A connection cross section of the fluid inlet channel and the fluid outlet channel is configured to be controlled by the valve closure member. A pressure detection chamber is fluidically connected with the fluid inlet channel. A pressure sensor is arranged in the pressure detection chamber and is integrated in the drive housing. The pressure sensor comprises a pressure detection surface arranged in a plane. A normal of the pressure detection surface is arranged so as to be perpendicular to a direction of a fluid flow into the pressure detection chamber. | 12-20-2012 |
20130008397 | CONTROL VALVE FOR USE IN VALVE TIMING CONTROL APPARATUS - A directional control valve is configured to switch among a first position at which a discharge passage communicates with a phase-advance passage and a phase-retard passage and a lock passage communicates with a drain passage, a second position at which the discharge passage communicates with the phase-advance passage and the lock passage and the phase-retard passage communicates with the drain passage, a third position at which the discharge passage communicates with the phase-retard passage and the lock passage and the phase-advance passage communicates with the drain passage, and a fourth position at which the discharge passage communicates with the lock passage and fluid-communication between the discharge passage and each of the phase-advance passage and the phase-retard passage is blocked. The directional control valve is further switchable to a sixth position at which the phase-advance passage, the phase-retard passage, and the lock passage all communicate with the discharge passage. | 01-10-2013 |
20130014715 | INTAKE/EXHAUST VALVE CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINEAANM Imai; YasuhitoAACI Toyota-shiAACO JPAAGP Imai; Yasuhito Toyota-shi JPAANM Okamura; RyujiAACI Toyota-shiAACO JPAAGP Okamura; Ryuji Toyota-shi JP - An intake/exhaust valve control device for an internal combustion engine including a cylinder having an intake valve and an exhaust valve includes: solenoids for driving at least one of the intake valve and the exhaust valve; a battery for supplying an electric current to the solenoids, a battery state predicting unit for predicting the voltage state of the battery; and an energization start timing setting unit for setting the current carrying start timing of the battery with respect to the solenoids based on the result of the prediction by the battery state predicting unit. According to the intake/exhaust valve control device, since it is possible to obtain the amount of energization necessary for driving the solenoids at an appropriate timing, it is possible to secure the responsiveness of the solenoids. | 01-17-2013 |
20130055973 | MULTI-CYLINDER INTERNAL COMBUSTION ENGINE WITH VARIABLE ACTUATION OF THE ENGINE VALVES - In a multi-cylinder internal combustion engine, valves of the engine, in particular the exhaust valves ( | 03-07-2013 |
20130068180 | Camshaft with Camshaft Adjuster - A camshaft for actuating the gas exchange valves of an internal combustion engine. The camshaft includes a camshaft tube, a hydraulic camshaft adjuster, a valve for controlling the hydraulic fluid supplied to the camshaft adjuster and an actuation device, arranged in the interior of the camshaft tube, for actuating the valve. The actuation device is secured against displacement in the axial direction. The camshaft is light-weight and functional elements in addition to the actuation device and optionally the valve can be integrated into the interior of the camshaft. It should furthermore be possible to arrange an oil or vacuum pump at the end of the camshaft opposite the camshaft adjuster, the pump being drivable by the camshaft. The actuation device is designed as an electromagnetic, piezoelectric or electrical actuator and is connected to the camshaft tube such that they rotate together. | 03-21-2013 |
20130068181 | APPARATUS AND METHOD FOR CONTROLLING VARIABLE VALVE MECHANISM - An control apparatus for a variable valve mechanism, is capable of executing fail safe control in a case in which locking occurs in either one of a cam shaft of a double shaft structure. The control apparatus for a variable valve mechanism has a cam shaft of a double shaft structure including an outer cam shaft and an inner cam shaft, such that it is possible to adjust the phase of a sub cam of inner cam shaft with respect to an main cam of outer cam shaft, and by means these cams, at least one of an intake valve and an exhaust valve of an internal combustion engine is operated. When an abnormality is detected in one of the cam shafts, the control apparatus controls the phase of the cam of the other cam shaft, in accordance with the determined current phase of the cam. | 03-21-2013 |
20130074790 | ELECTROHYDRAULIC VALVE ACTUATOR WITH RECIPROCATING CAM - An electrohydraulic valve actuator with cylinder and reciprocating cam includes: a valve-actuating hydraulic cylinder ( | 03-28-2013 |
20130098318 | ACTUATOR DEVICE FOR ADJUSTING A SLIDING CAM SYSTEM - Actuator device of a sliding cam system, having at least one sliding cam ( | 04-25-2013 |
20130112160 | FOUR-STROKE CYCLE ENGINE - There are output pistons | 05-09-2013 |
20130133596 | INTERNAL-COMBUSTION ENGINE HAVING A SYSTEM FOR VARIABLE ACTUATION OF THE INTAKE VALVES, PROVIDED WITH THREE-WAY SOLENOID VALVES - An internal-combustion engine with two intake valves for each cylinder is provided with a system for variable actuation of the intake valves, comprising a single solenoid valve for each cylinder that controls communication of the pressurized-fluid chamber of the system with an exhaust channel. The solenoid valve is a three-way, three-position solenoid valve, comprising an inlet permanently communicating with the pressurized-fluid chamber and with the hydraulic actuator of an intake valve, and two outlets communicating, respectively, with the actuator of the other intake valve and with said exhaust channel. The solenoid valve has a first position, in which the inlet communicates with both of the outlets, a second position, in which the inlet communicates only with the aforesaid outlet connected to the actuator of an intake valve and does not communicate, instead, with the outlet connected to the exhaust channel, and a third position, in which the inlet does not communicate with any of the two outlets. | 05-30-2013 |
20130146002 | ELECTRO-HYDRAULIC VARIABLE VALVE LIFT SYSTEM - An electro-hydro valve lift system may include a drive cam, a pump piston, a first and a second EHV apparatus, a first oil control valve, a first oil control hydraulic line fluid-communicating the main chamber with the first oil control valve, a second oil control hydraulic line fluid-communicating the first oil control valve with the first EHV apparatus, a third oil control hydraulic line fluid-communicating the main chamber with the second EHV apparatus, a fourth oil control hydraulic line selectively fluid-communicated with the second oil control hydraulic line according to the first oil control valve, an accumulator fluid-communicated with the fourth oil control hydraulic line, and a second oil control valve disposed on the fourth oil control hydraulic line, wherein the fourth oil control hydraulic line is fluid-communicated with the third oil control hydraulic line according to the second oil control valve. | 06-13-2013 |
20130146003 | APPARATUS AND METHOD FOR CONTROLLING ACTUATOR THAT CONTROLS OPENING AND CLOSING OF INTAKE VALVE - Disclosed is an apparatus for controlling an actuator that controls opening and closing of an intake valve. The apparatus includes an input shaft connected to a motor and an output shaft rotatable in conjunction with the input shaft, a magnet unit including a first magnet and a second magnet provided on concentric circles, wherein the first magnet is provided such that different poles are alternately arranged at an angle of 90° and the second magnet is provided such that different poles are alternately arranged at a predetermined angle, and a control unit wherein a first hall sensor is disposed in a rotational section of the first magnet to sense a change in polarity of the first magnet, and a second hall sensor and a third hall sensor are disposed in a rotational section of the second magnet to sense a change in polarity of the second magnet. | 06-13-2013 |
20130247850 | CONTROL UNIT FOR VARIABLE VALVE TIMING MECHANISM AND CONTROL METHOD FOR VARIABLE VALVE TIMING MECHANISM - A control unit for a variable valve timing mechanism for changing a cam phase by an electric actuator determines an influence on the operation of the variable valve timing mechanism based on the engine operating conditions. Then, based on the determination result, the control unit reduces the operation amount of the electric actuator in a predetermined range of the rotation angle of a camshaft. | 09-26-2013 |
20130255607 | ELECTROMAGNETIC ACTUATING DEVICE - An electromagnetic actuating device is being proposed for a valve train that can be adjusted on the cam side in an internal combustion engine, including a housing with a top part and a bottom part, whereby an electrically energizable solenoid device is embedded in the top part of the housing and an adjusting pin that is actuated by the solenoid device is mounted in the bottom part of the housing so as to move longitudinally, and also including a plug-in connector that is made of plastic and that runs on the top part of the housing in order to supply electricity to the solenoid device as well as a connecting flange that runs on the housing in order to attach the actuating device to the internal combustion engine. The plug-in connector and the connecting flange are integral parts of the top part of the housing made by encapsulating the solenoid device with plastic. | 10-03-2013 |
20130276730 | INTERNAL-COMBUSTION ENGINE WITH CYLINDERS THAT CAN BE DEACTIVATED, IN WHICH THE DEACTIVATED CYLINDERS ARE USED AS PUMPS FOR RECIRCULATING THE EXHAUST GASES INTO THE ACTIVE CYLINDERS, AND METHOD FOR CONTROLLING SAID ENGINE - In an internal-combustion engine provided with a system for variable actuation of the intake valves of the cylinders, some of said cylinders are deactivated in given conditions of operation of the engine by interrupting the supply of fuel. During de-activation, the cycle of opening and closing of the intake valves and exhaust valves of the deactivated cylinders is maintained. The intake valves of each deactivated cylinder are opened when the exhaust valves of the same cylinders are also open. The inactive cylinders are used as reciprocating volumetric pumps for recirculation of exhaust gases from the exhaust manifold of the engine up to the intake manifold. The recirculated gases are cooled in the intake manifold by the air introduced into the latter and can consequently be fed in a larger mass to the active cylinders, which enables a better global efficiency of the engine to be obtained. | 10-24-2013 |
20130284131 | OPERATION CONTROL SYSTEM FOR A SOLENOID VALVE OF A COMBUSTION ENGINE AND METHOD - An operation control system for a solenoid valve of a combustion engine having at least one solenoid valve to hydraulically couple and decouple actuation forces of a cam with a gas valve of a cylinder. A driving unit operates the solenoid valve, and a first detection device monitors a status of the solenoid valve by supplying a status signal to a control unit during an engine intake cycle phase of the cylinder. A second detection device analyzing a system parameter corresponding to the cylinder and supplying a control signal during an engine cycle phase other than the engine intake cycle phase. The control unit delays the status signal based on the status signal to temporally synchronize the status signal with the control signal, or a secondary control signal based thereon, and compares the status signal with the control signal or the secondary signals with each other using an AND-Function. | 10-31-2013 |
20130333646 | Integrally Cast Block-Head with Solenoid Pack Cover - An engine assembly includes a uni-cast, piston-enclosing chamber structure and a solenoid valve pack. The chamber structure includes a piston-receiving chamber, a gas intake port, an intake valve port, a gas exhaust port, and an exhaust valve port. The gas intake port communicates with the intake valve port, and the gas exhaust port communicates with the exhaust valve port. The solenoid pack includes gas intake and gas exhaust solenoid valve assemblies. The solenoid pack is attachable to the chamber structure such that the gas intake valve port axially aligns with a gas intake valve-receiving column, and the gas exhaust valve port axial aligns with a gas exhaust valve-receiving column. The intake valve is bi-directionally displaceable as received in the gas intake valve port and the gas intake valve-receiving column. Similarly, the exhaust valve is bi-directionally displaceable as received in the gas exhaust valve port and gas exhaust valve-receiving column. | 12-19-2013 |
20140041605 | ELECTRO-HYDRAULIC VARIABLE VALVE LIFT APPARATUS - An electro-hydraulic variable valve lift apparatus may include an hydraulic pump body installed in an engine, a piston provided to reciprocate within the hydraulic pump body and forming an hydraulic pump chamber together with the hydraulic pump body, an hydraulic pump cam disposed to be in contact with the piston and enabling the piston to reciprocate according to a rotation thereof, a retainer provided to be slidable along the piston between the piston and the engine and forming a retainer chamber with the engine, a retainer spring elastically supporting the retainer, an oil control valve allowing the hydraulic pump chamber and the retainer chamber to selectively communicate with each other, a valve opening and closing unit communicating with the hydraulic pump chamber and opened or closed according to oil pressure supplied from the hydraulic pump chamber. | 02-13-2014 |
20140048023 | FEED FORWARD CONTROL FOR ELECTRIC VARIABLE VALVE OPERATION - Periodic torque disturbances that affect cylinder valve operation are anticipated, and an appropriate reaction torque is provided by an electric motor to counteract the periodic torque disturbances to position a cylinder valve at a desired position. | 02-20-2014 |
20140102385 | Variable Valve Operation Control Method and Apparatus - A control method and apparatus for a variable engine valve operating control mechanisms which move the engine valves to a safe lift/timing position with respect to a piston to minimize the potential for valve to piston contact during valve surge. At least one engine operating conditions is selected and provided with a threshold triggering a control to move the valves to a safe position in a calibrated, predictive manner in advance of any potential valve to piston contact. The control method and apparatus can be integrated into the existing engine control and variable valve operating control mechanism. | 04-17-2014 |
20140137820 | ELECTROMAGNETIC ACTUATING DEVICE AND CAMSHAFT ADJUSTER - The invention relates to an electromagnetic actuating device ( | 05-22-2014 |
20140144398 | CAMLESS ENGINE OPERATING SYSTEM - A camless engine operating system that includes an inlet valve switch configured to detect rotational movement of an inlet valve power disc and to output an inlet actuator voltage. A voltage level of the inlet actuator voltage is synchronous with the rotational movement of the inlet valve power disc. An inlet valve is movable to open and close an intake port of a combustion chamber. An inlet valve mechanical force moves the inlet valve to open the intake port. An inlet actuator is configured to exert the inlet valve mechanical force onto the inlet valve. The inlet actuator voltage received by the inlet actuator controls the inlet actuator to exert the inlet valve mechanical force onto the inlet valve. | 05-29-2014 |
20140165936 | DEVICE FOR ACTUATING A VALVE OF AN INTERNAL COMBUSTION ENGINE - The invention relates to a cam actuator ( | 06-19-2014 |
20140216372 | VALVE TIMING CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE - In a valve timing control system of an internal combustion engine employing both an electric-motor-driven intake valve timing control device for changing intake valve timing and an electric-motor-driven exhaust valve timing control device for changing exhaust valve timing, the intake valve timing control device includes a less-friction roller speed reducer having a toothed gear and configured to transmit torque by repeated relocations of each of rollers rolling and relocating from one of two adjacent teeth of the toothed gear to the other. In contrast, the exhaust valve timing control device includes a planetary-gear speed reducer having a friction greater than a friction of the roller speed reducer and configured to transmit torque by meshed-engagement of toothed gears in mesh with each other. | 08-07-2014 |
20140245978 | VALVE TIMING CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE - In a valve timing control system of an internal combustion engine employing both an electric-motor-driven intake valve timing control device (VTC) and an electric-motor-driven exhaust VTC having similar fundamental configurations, a maximum drive-efficiency motor-speed range of a first electric motor of the intake VTC and a maximum drive-efficiency motor-speed range of a second electric motor of the exhaust VTC are set to differ from each other depending on two different working ranges respectively suitable for the intake VTC and the exhaust VTC such that the maximum drive-efficiency motor-speed range of the intake VTC is set higher than that of the exhaust VTC. A reduction ratio of a first speed reducer configured to reduce a rotational speed of the first electric motor is set higher than that of a second speed reducer configured to reduce a rotational speed of the second electric motor. | 09-04-2014 |
20140251242 | ENGINE VALVE POSITION SENSING SYSTEMS AND METHODS - A vehicle system includes a position sensor, a current supply module, and a mode indicator module. The position sensor includes: an electromagnet (EM) that generates a magnetic field proximate to one of an intake valve and an exhaust valve of an engine; and a Hall-effect sensor that generates a position signal indicating a position of the one of the intake valve and the exhaust valve based on the magnetic field. The current supply module supplies current to the EM. The mode indicator module indicates whether the one of the intake valve and the exhaust valve is being actuated in a low lift mode or a high lift mode based on the position signal. | 09-11-2014 |
20140290603 | System and method for controlling variable valve time - The present disclosure provides a variable valve time control system and method. The variable valve time control system comprises an actuator, an actuation switch valve, an electronic control unit and a displacement sensor. The electronic control unit controls the actuation switch valve. The displacement sensor detects the engine valve displacement signal. The electronic control unit calculates the engine valve opening and closing times based on the displacement signal from the engine valve displacement sensor, and translates the engine valve opening and closing times into the corresponding switch times of the actuation-switch-valve power output. | 10-02-2014 |
20140373795 | VARIABLE VALVE OPERATING APPARATUS FOR INTERNAL COMBUSTION ENGINE - A variable valve operating apparatus including an electric motor including a motor housing with a permanent magnet, and a speed reducing mechanism having a casing, the motor housing and the casing of the speed reducing mechanism being coupled to each other by a plurality of bolts, wherein the motor housing includes a convex portion formed in a portion of the motor housing which is opposed to one axial end of the permanent magnet, the convex portion having a threaded hole into which a tip end portion of each bolt is screwed, and a projection formed on an axial end surface of the convex portion in alignment with the threaded hole in an axial direction of the threaded hole, and wherein the axial end surface of the convex portion is located further spaced from the one axial end of the permanent magnet than the projection. | 12-25-2014 |
20150144081 | ENGINE VALVE DEACTIVATION SYSTEM - A system and method comprising four valves per cylinder of a multi-cylinder engine is provided to control cylinder intake and exhaust valves independently from other cylinders in response to engine operating conditions. The engine valve deactivation system for the engine may comprise two or more cylinders wherein each cylinder has two exhaust valves and two inlet valves. The system and method may allow for cylinder deactivation and/or high swirl to both be delivered. | 05-28-2015 |
20150322829 | VALVE DRIVING DEVICE USING PIEZOELECTRIC ACTUATOR - A valve driving device using a piezoelectric actuator includes a piezoelectric body of which a volume expands according to a voltage applied thereto. A symmetric displacement increase mechanism amplifies the volume expansion of the piezoelectric body. A swing arm is connected to the symmetric displacement increase mechanism and operated to drive an engine valve according to the amplified expansion of the piezoelectric body. | 11-12-2015 |
20150322830 | ELECTROMAGNETIC ACTUATING APPARATUS - An electromagnetic actuator device having a core unit ( | 11-12-2015 |
20150345345 | ELECTRIC MOTOR DRIVEN SIMPLE PLANETARY CAM PHASER - A cam phaser ( | 12-03-2015 |
20150354440 | AIR INTAKE CONTROL SYSTEM FOR ENGINE AND METHOD OF CONTROLLING THE SAME - An air intake control system for an engine, which is disposed in an intake line between a compressor of a turbocharger and an intake manifold and adjusts and controls air intake may include a motor for providing torque, a bypass line with a first end connected to the intake line and a second end connected to an external air line for delivering external air into the compressor, and a flow control valve assembly disposed at a divergent point from the intake line to the bypass line and selectively distributing air intake from the compressor to the intake manifold and the bypass line by adjusting a degree of opening of valve members in accordance with an amount of revolution of the motor. | 12-10-2015 |
20150377090 | VALVE LIFT CONTROL SYSTEMS AND METHODS FOR ENGINE STARTABILITY - A startup/shutdown control module selectively generates an engine startup command when an engine of the vehicle is off. A starter control module applies power to a starter motor when the engine startup command is generated. A valve control module, in response to the generation of the engine startup command: operates intake valves of cylinders of the engine in a low lift mode when an engine temperature is less than a predetermined temperature; and operates the intake valves of the cylinders of the engine in a high lift mode when the engine temperature is greater than the predetermined temperature. | 12-31-2015 |
20150377091 | VALVE TIMING CONTROL APPARATUS AND VARIABLE VALVE ACTUATING APPARATUS FOR INTERNAL COMBUSTION ENGINE - A valve timing control apparatus for an internal combustion engine includes: a power feeding brush including a tip end portion slidably abutted on the slip ring to feed electric power to the slip ring; and a rotation angle sensing mechanism including; a sensed portion provided to the one end portion of the motor output shaft, and a sensing portion provided to the cover member, and arranged to sense a rotation position of the sensed portion; the cover member including a recessed portion formed in an inner surface of the cover member, and recessed in an axially outward direction relative to the position of the opening end of the brush holding hole; and the sensed portion including a tip end portion inserted and disposed within the recessed portion to confront the sensing portion. | 12-31-2015 |
20150377092 | SLIDING CAM ACTUATOR HAVING A SEAL - A sliding cam actuator for a sliding cam system, including a housing defining a housing interior, and at least one coil former having a winding for generating a magnetic force when current flows, further including a moving pin or control pin extendable out of the housing by the magnetic force or a spring force and designed to dip into a displacement groove of a sliding can. A sealing element sealing off the interior of the housing from the outside is arranged between a component fixed to the housing and a component fixed to the moving pin. A sliding cam system including at least one camshaft, on which at least one sliding cam having a displacement groove is arranged such that the sliding cam can be displaced but is fixed against rotation, and into which sliding cam a moving pin of a sliding cam engages is provided. | 12-31-2015 |
20160024981 | SYSTEM AND METHOD FOR SAFE VALVE ACTIVATION IN A DYNAMIC SKIP FIRING ENGINE - A variety of methods and devices for controlling the operation of the intake and exhaust valves in an internal combustion engine during skip fire operation are described. In various embodiments, an exhaust valve monitor or other suitable mechanism is used to detect exhaust valve actuation faults. When an exhaust valve actuation fault is detected for a particular cylinder, the corresponding intake valve is deactivated (or not activated) in circumstances when it would otherwise be activated in order to prevent the intake valve from opening into a cylinder that contains high pressure combustion gases. The described approach is particularly beneficial when skip fire operation is combined with cylinder deactivation so that air is not pumped through the cylinders during the skipped working cycles. | 01-28-2016 |
20160032790 | INTERNAL COMBUSTION ENGINE WITH A CAMSHAFT PHASER - An internal combustion engine includes a crankshaft rotatable about a crankshaft axis; a camshaft rotatable by the crankshaft about a camshaft axis; an engine cover defining an engine cover volume within the internal combustion engine; a drive member disposed within the engine cover volume which transfers rotational motion from the crankshaft to the camshaft; a camshaft phaser disposed within the engine cover volume which controllably varies the phase relationship between the crankshaft and the camshaft; an actuator which operates the camshaft phaser; and an actuator mount within the engine cover volume which mounts the actuator structurally independent of the engine cover, thereby allowing removal of the engine cover independently of the actuator. | 02-04-2016 |
20160032795 | Valve Timing Control Device for Internal Combustion Engine - The present invention provides a valve timing control device that can suppress a leakage of noise to the outside of the device and can improve reliability without needlessly increasing the volume occupied by the device. There is provided a valve timing control device for an internal combustion engine, including a driving rotary body to which rotational force from a crankshaft is transmitted, a driven rotary body, an intermediate rotary body, a speed reduction mechanism, an electric motor, and a housing, wherein: the electric motor rotates relative to the camshaft and the housing; the valve timing control device further includes a current application switching mechanism which is provided inside the housing and which includes brushes to switch current application to a coil of the electric motor, and feeding mechanisms which are provided between the housing and an external device and which include brushes to apply a current from the external device to the current application switching mechanism; electromagnetic noise emission suppression means is provided on the power supply side of the brushes of the feeding mechanisms; and the brushes of these mechanisms are disposed apart from the rotational axis of the camshaft by substantially the same distance. | 02-04-2016 |
20160061066 | VALVE TIMING CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE - A valve timing control device of internal combustion engine comprises a chain case | 03-03-2016 |
20160076410 | VALVE TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A valve timing control apparatus for an internal combustion engine includes: a power feeding brush including a tip end portion arranged to be slidably abutted on the slip ring; and a rotation angle sensing mechanism provided between one end portion of the motor output shaft, and the cover member confronting the one end portion of the motor output shaft, and arranged to sense a rotation angle of the motor output shaft, the power feeding brush being disposed in a range in which the power feeding brush is slid on the slip ring, in a range from a position which is deviated a predetermined angle in a rotation direction of the motor housing from an uppermost position of the other of the electric motor and the cover member in a vertical direction, to a lowermost position. | 03-17-2016 |
20160090875 | VARIABLE VALVE LIFT APPARATUS - A variable value lift apparatus may include a camshaft, a first moving cam including cams having different shapes, having a first cam guide protrusion, rotating with the camshaft, and being slidable in an axial direction of the camshaft, a second moving cam including cams having different shapes, having a second cam guide protrusion, rotating together with the camshaft, and being slidable in the axial direction of the camshaft, a first operating unit selectively jutting out to guide the first cam guide protrusion to move the first moving cam in a first direction, a second operating unit selectively jutting out to guide the second cam guide protrusion to move the second moving cam in a second direction, a controller to control operations of the first and second operating units, and valve opening and closing units brought into contact with any one of the plurality cams to be opened and closed. | 03-31-2016 |
20160146074 | ENGINE BRAKE LASH ADJUSTER DEVICE AND METHOD - A compression brake device and method are provided that include a lash member coupled to a rocker arm. The lash member has a first position that forces opening of the valve when the rocker arm is at the lower position. The brake also includes a lost motion cylinder at least partially defined within the rocker arm. The cylinder is biased towards a position of greatest internal displacement volume. The lost motion cylinder has a first operational mode wherein the lost motion cylinder permits compression thereof such that the ability of the rocker arm to open an exhaust valve is a function of the position of the lash member. The lost motion cylinder has a second operational mode wherein the lost motion cylinder retards compression thereof such that the ability of the rocker arm to open an exhaust valve is independent of the position of the lash member. | 05-26-2016 |
20160160710 | ENGINE BRAKING VIA ADVANCING THE EXHAUST VALVE - One variation may include a product including: an engine having at least one cylinder, the cylinder having at least one blowdown exhaust valve, at least one scavenging exhaust valve, and at least one intake valve, the engine further having a first actuator connected to the at least one blowdown exhaust valve and a second actuator connected to the scavenging exhaust valve and controller connected to one of the first or second actuator and adapted and configured to advance the timing of one of the blowdown or scavenging exhaust valves when the controller receives a braking signal. | 06-09-2016 |
20160186622 | ELECTROMAGNETIC ACTUATING APPARATUS AND SYSTEM FOR ADJUSTING A FUNCTIONALITY OF A MOTOR VEHICLE ASSEMBLY - An electromagnetic actuating apparatus with two armature means which are designed to exert an actuating force on two tappet units which are extended in the longitudinal direction along a longitudinal movement axis and are guided such that they can be moved in a parallel manner in a common guide section of a housing which accommodates the armature means, wherein the tappet units each have an engagement end which is designed to interact with an actuating groove in a motor vehicle motor adjustment system and projects from the guide section at least in an engaged state, and the common guide section forms a guide end surface in which guide openings associated with the two tappet units, are open, wherein a connecting path which runs through centre axes of the only two guide openings in the guide end surface forms an offset (v) from a surface centre point of the guide end surface and/or from a surface centre point of a housing end surface of the housing, wherein the surface centre point lies on a perpendicular bisector of the connecting path. | 06-30-2016 |