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Match Document Document Title
7387094 Electromagnetically driven valve  
An electromagnetically driven valve that is driven by the combined action of electromagnetic force and elastic force includes first and second valve elements that have valve shafts and move in...
7370614 Electromagnetically driven valve  
An electromagnetically driven valve includes a driven valve having a stem and carrying out reciprocating motion along a direction in which the stem extends, a disc support base having an abutment...
7367300 Electric valve drive with a rotating actuator  
Valve drive for an internal combustion engine having a valve which is axially displaceable between an open position and a closed position and is prestressed by a locking spring in the direction of...
7367296 Bi-directional power electronics circuit for electromechanical valve actuator of an internal combustion engine  
A bi-directional dual coil half bridge converter adapted to be coupled to a dual coil actuator of a cylinder valve in an internal combustion engine is described. In one example, the converter has a...
7367295 Exhaust control valve for internal combustion engine  
An exhaust valve assembly for a two stroke internal combustion engine having a cylinder with at least one main exhaust port and one auxiliary exhaust port is disclosed. The assembly comprises a...
7357105 Hydraulic valve driving device and engine including the same and vehicle  
A hydraulic valve driving device includes a valve actuator operable to drive an engine valve, a hydraulic pump that generates the oil pressure for the valve actuator, a hydraulic pump driving motor...
7347173 Valve timing control system for internal combustion engine  
A valve timing system for an internal combustion engine includes a phase alteration mechanism interposed between a driving rotator and a driven rotator and having a direction turning point at which...
7322374 Actuator for actuating a lift valve  
An actuator for actuating a non-camshaft driven lift valve ( 12 ) of an internal combustion engine ( 10 ) includes a reciprocating tappet ( 20 ) that is coupled to the lift valve ( 12 ), a target...
7314026 Electronic valve actuator having hydraulic displacement amplifier  
An electronically controlled valve actuator having a hydraulic lever in the form of a fluid filled chamber, is used to amplify the motion of a magnetic armature and thereby achieve a desired valve...
7308877 Variable valve timing controller for internal combustion engine  
A variable valve timing controller adjusts valve timing of an intake valve and/or an exhaust valve by varying a motor speed relative to a camshaft. When an engine is running under a predetermined...
7308871 Control apparatus for variable valve apparatus and method thereof  
An engine control unit diagnoses whether or not a unit that controls a variable valve apparatus is failed, and when it is diagnosed that the unit is failed, the engine control unit shuts off the...
7306196 Electromagnetically driven valve  
The electromagnet includes a valve-opening side coil portion supplied with a current to thereby generate a first magnetic flux and generate electromagnetic force in a direction moving the...
7305943 Electromagnet assembly for electromechanical valve actuators  
An electromechanical valve actuator including an electromagnet interconnected with a housing end portion and an electric coil disposed adjacent said electromagnet. The electromagnet includes a...
7305942 Electromechanical valve actuator  
An electromechanical valve actuator with an armature stem guidance system that ensures that the armature stem stays aligned with the valve stem during operation. The stem guidance system may also...
7299623 Method for controlling exhaust gas temperature and space velocity during regeneration to protect temperature sensitive diesel engine components and aftertreatment devices  
A method for controlling the temperature and/or space velocity of exhaust gas provides control of the maximum temperature of the exhaust gas to prevent thermal damage to the Diesel engine...
7284514 Engine control system  
A system for improving engine operation during a condition of engine controller degradation is presented. According to one aspect of the description, the engine may continue to operate if the...
7281505 Variable lift valve operating system for internal combustion engine  
In a variable lift valve operating system for an internal combustion engine, an actuator for rotatably driving a control shaft of a variable lift mechanism is mounted on an engine body. The...
7280909 Valve control for an engine with electromechanically actuated valves  
A system and method to control engine valve timing of an internal combustion engine. Electromechanical valves are controlled to improve engine fuel economy. Further, the method can adjust valve...
RE39851 Internal combustion engine having a variable valve train  
An internal combustion engine is provided with a variable valve train capable of altering opening and closing timings and/or opening amounts of at least one of an intake valve and an exhaust valve...
7270094 Control apparatus for electric variable valve actuation mechanism  
An electric variable valve timing mechanism and a starter are actuated by electricity supplied from a common battery. During an engine starting process, the starter is actuated, and an electronic...
7267088 Valve-driving system of internal combustion engine  
A valve-driving system which is applied to an internal combustion engine having a plurality of cylinders for driving an intake or exhaust valve provided in each cylinder, including a plurality of...
7258104 Method and apparatus for controlling operation of dual mode HCCI engines  
An intake and exhaust system for a dual mode HCCI engine, which provides superior intake temperature control and homogeneity for engine operation in SI and HCCI modes, as well as during transition...
7255074 Linear EMV actuator using permanent magnet and electromagnet  
A linear EMV actuator uses a permanent magnet and an electromagnet in which EMV operation for opening/closing an exhaust valve and an intake valve makes valve operations linear. As a result, the...
7255073 Electromechanical valve actuator beginning of stroke damper  
An electromechanical valve actuator having a beginning of stroke damper to damp the impact between the armature stem and the valve stem as the valve is opened. The beginning of stroke damper...
7255066 Valve selection for an engine operating in a multi-stroke cylinder mode  
A method to control valve patterns in a cylinder operating in a multi-stroke cylinder mode. Valves are controlled to improve drivability and emissions.
7252055 Valve controller  
A valve controller includes a detector detecting a shutdown command signal to shutdown an engine, a driving circuit for driving a motor, and a power source controller. The power source controller...
7252053 Electromagnetic actuator and control  
An electromagnetic actuator includes a stator assembly mounted to a center pole formed of material having high magnetic permeability and functions as a return path for the magnetic field generated...
7249579 Enhanced permanent magnet electromagnetic actuator for an electronic valve actuation system of an engine  
A valve actuator for an internal combustion engine is described having a core having a wound coil located therein, said core further having at least one permanent magnet located at least partially...
7243623 Velocity control of exhaust valve actuation  
An exhaust valve assembly includes a valve body supported on a shaft for rotation within an exhaust component. The shaft is coupled to a solenoid with a linkage assembly. A controller controls the...
7237516 Method for controlling an actuator, using a retaining mark space ratio  
The invention relates to a method for controlling an actuator which can be displaced between two end positions, said actuator being impinged in one end position and being capable of displacement to...
7225770 Electromagnetic actuator having inherently decelerating actuation between limits  
An electromagnetic valve actuator system for controlling the operation of a valve in an internal combustion engine comprising a valve having a valve stem with a valve head at one end. The valve is...
7222595 Internal combustion engine for vehicle  
A valve system of an internal combustion engine mounted on a vehicle comprises a valve characteristic varying mechanism for controlling valve operation characteristics of an engine valve, and an...
7204210 Reducing power consumption and noise of electrically actuated valves  
A system and method for controlling electromechanical valves operating in an engine is presented. According to the method, armature levitation is strategically used during a cycle of a cylinder....
7201124 Phase displacement device  
A phase displacement device ( 1 ) having a drive ( 2 ) with a drive shaft ( 4 ) and a transmission ( 5 ) for displacing the phase between a camshaft ( 9 ) and a crankshaft ( 12 ) is provided. The...
7188823 Electromagnetic valve operating device with adjustable neutral position  
An electromagnetic valve actuating mechanism for an internal combustion engine has an axially displaceable control element with an armature plate, for opening or closing a valve. Two solenoids are...
7188592 Position sensor of a valve actuator for an internal combustion engine  
A sensor of the position of a target is secured to an electromagnetic or electromechanical valve actuator of an internal combustion engine. The target is driven by a reciprocating translatory...
7188591 Power supply method for electrical equipment  
A power supply method an apparatus for powering electrical equipment, the electrical equipment operated by using current peaks. The electrical equipment may be connected via at least one capacitive...
7185617 Electromagnetic valve actuating device for an internal combustion engine  
The present invention pertains to a valve actuating device for an internal combustion engine, comprising a magnetic blade controlling the position of the valve and cooperating for this purpose with...
7174887 Variable valve system  
A variable valve mechanism is installed to change the operating angle and lift amount of an intake valve in accordance with the rotation position of a control shaft. A worm wheel is secured to the...
7165518 Adjusting valve lash for an engine with electrically actuated valves  
A system and method for controlling electromechanical valves operating in an engine is presented. According to the method, armature levitation position may be changed to accommodate varying rates...
7162982 Hydraulic valve actuator for reciprocating engine  
A hydraulic valve actuator for reciprocating engine includes at least a hydraulic cylinder ( 3 ) for opening at least one valve ( 2 ) via at least one valve opening selector ( 11 ) with at least...
7156366 Electromagnetically driven valve device  
An electromagnetically driven valve device is formed by attaching a lower core assy, an armature, an upper core assy, and an upper case in that order from bottom, to a cylinder head of an engine....
7156082 Controlling spark for an engine with controllable valves  
A system and method to control spark in a cylinder of a multi-cylinder engine. Spark can be controlled in a cylinder while reducing the possibility of producing a spark at a spark plug coupled to...
7156057 Electromagnetic actuator for controlling a valve of an internal combustion engine and internal combustion engine equipped with such an actuator  
The present invention pertains to an electromechanical actuator controlling a valve of an internal combustion engine by means of a first magnetic field, generated in a variable manner by an...
7152561 Control structure for the adjusting motor of an electric camshaft adjuster  
A control structure for the adjusting motor of an electric camshaft adjuster in an internal combustion engine is provided. The control structure includes a controller which processes measuring...
7152558 Electromechanical valve actuator assembly  
A lever electromechanical valve actuator assembly and arrangement of electromechanical valve actuators that creates a compact actuator assembly to increase ease of serviceability, provide space for...
7146947 Arrangement for adjusting the angle of rotation of a camshaft relative to a crankshaft  
An arrangement for adjusting the angle of rotation of a camshaft ( 5 ) relative to a crankshaft is provided. The arrangement requires many components, which partially also require different...
7146944 Valve timing controller  
The valve timing controller is driven by a motor. The valve controller has a control circuit and a driving circuit. The driving circuit receives a control signal generated by the control circuit...
7140355 Valve control to reduce modal frequencies that may cause vibration  
A method to reduce chassis vibration in an engine with valves that may be deactivated. Valves are controlled to avoid exciting modal frequencies of mechanical components and systems.
7131633 Manually controlled replacement solenoid for hydraulic valves  
Solenoid controlled hydraulic valves in sealed hydraulic circuits are provided with backup actuation without compromise of the hydraulic circuit by provision of an auxiliary, quick fitting solenoid...
Matches 1 - 50 out of 585 1 2 3 4 5 6 7 8 9 10 11 12 >