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7600494 Operation of electrically actuated valves at lower temperatures  
A system and method for controlling electromechanical valves operating in an engine is presented. According to the method, valve operation can be improved by heating the valves, at least during...
7594516 Freeze-resistant metering valve  
A freeze-resistant metering valve is provided that comprises a magnetic part and a hydraulic part. The magnetic part has an armature biased by a spring. The hydraulic part has an annular space for...
7584727 Permanent magnet electromagnetic actuator for an electronic valve actuation system of an engine  
A valve actuator for an internal combustion engine, comprising of a core having a wound coil located therein, the core further having at least one permanent magnet located at least partially within...
7575219 Linear solenoid for EGR valve  
A linear solenoid for an EGR valve is presented in three alternatives in a constructive way, i.e., with manufactured tube carcass or casing, carcass or casing with deep print and with conformed...
7571891 Solenoid valve  
A solenoid valve for a fuel injection valve with an internal space is disclosed. Fuel is included in the internal space. The solenoid valve includes a magnet coil that forms an electromagnet when...
7552909 Fuel injector with adjustable-metering servo valve for an internal-combustion engine  
An injector with an adjustable-metering servo valve is provided. The injector has a shutter actuated by an armature of an electromagnet. The armature is mobile for an opening stroke defined by a...
7547000 Valve coupling system  
A method for coupling a valve member to an armature member includes coupling the valve member to a surface of a bore of the armature member. The valve member contacts the armature member over less...
7533834 Fuel injection valve for combustion engines  
A fuel injection valve for fuel injection systems of combustion engines, in particular for the direct injection of fuel into a combustion chamber of a combustion engine, comprising a fuel inlet...
7527211 Fuel injector with clamping sleeve as a stop for a valve needle  
A method for producing a fuel injector and a fuel injector for internal combustion engines, having a control valve with an electromagnetically actuatable valve needle; a coil is received in a...
7520488 Poppet-type two-port solenoid valve  
A two-port solenoid valve, which opens and closes a valve seat by operating a tabular valve member by using electromagnetic force and fluid pressure, capable of improving the responsiveness when...
7516940 Electromagnetic actuators  
A valve comprises an electromagnetic actuator including a solenoid. The solenoid includes at least one core, wherein the core is an “E” shaped core or a “U” shaped core and an anchor plate....
7513445 Metering solenoid valve for a fuel injector  
The metering servo valve comprises a valve body, an open/close element, and an electromagnet, and is housed in a shell of the injector. The electromagnet actuates a mobile armature for a travel...
7509948 Variable displacement pump with an anti-stiction device  
A spacer for use with, and to prevent or reduce the occurrence of stiction in, a fluid device such as a pump. The spacer has a generally ring-shaped body, which has first and second facing surfaces...
7497203 Avoidance of spark damage on valve members  
An apparatus is provided for suppressing spark damage to components of a solenoid operated valve assembly. The assembly may include a solenoid having a solenoid coil and an armature movable under...
7487749 Electromechanical valve actuator for internal combustion engines and internal combustion engine equipped with such an actuator  
An electromagnetic valve actuator for internal combustion engines, includes an electromagnet and a mobile magnetic plate intended to come into contact with a part of the electromagnet. At least one...
7464912 Method for obtaining a fuel injector for an internal-combustion engine, and an injector made according to said method  
A fuel injector for an internal-combustion engine comprises an injector body and an injection-control valve, which in turn comprises: an open/close element; an elastic thrust element for pushing...
7458529 Adjustable metering servovalve for a fuel injector  
The metering servovalve ( 7 ) comprises a valve body ( 8, 30 ), an open/close element ( 45 ) and an electromagnet ( 15 ), and is housed in a casing ( 2 ) of the injector ( 1 ). The electromagnet (...
7445193 Solenoid-operated valve  
A valve seat section is formed on a valve body having first and second ports. A plate-like movable iron core is provided so that the movable iron core is capable of being seated on the valve seat...
7431262 Digital regulators  
Digital regulators using a plurality of latching solenoid actuators, each having a spring return, the springs being configured to provide a force on the valve member of a regulator, when the...
7415950 Engine valve control system and method  
A method of operating an engine having at least one cylinder, said cylinder including at least one electric valve actuator, said actuator including at least a coil and an armature moveable thereto,...
7404541 Solenoid valve  
A solenoid valve comprises a valve chamber between a base body and a magnet head and in the valve chamber a magnet armature functioning as a valve member is located. The actuation of the magnet...
7360751 Magnet unit  
A magnet unit is provided with a solenoid with a coil whose core is attached in a recess on the front side of a base, with a movable anchor activated by a recoil spring with a valve closing element...
7357236 Pressure relief valve actuator for hydraulic torque coupling actuator  
A hydraulically actuated torque coupling assembly that has an actuator plate mechanism integrated within the pressure relief valve assembly. The actuator plate includes a valve closure member and...
7354027 Bounce-free magnet actuator for injection valves  
The invention relates to a magnet valve for actuating a fuel injector, having a magnet core and magnet coil received in the core. A closing spring acts on the magnet armature in the closing...
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...
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...
7252114 Electromagnetic fluid flow control valve  
An electromagnetic actuator status defines two pairs of poles between which an elongate magnetisable armature can see-saw through a mid position between two home positions defined by two of the...
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...
7249749 Solenoid valve with 2-part fixed core  
A solenoid valve capable of handling a corrosive control fluid and developing an increased attraction force. The solenoid valve 1 is adapted such that a fixed core is located in a wound coil 29 ...
7219876 Electromagnetic valve apparatus  
The force to draw an armature of an electromagnetic valve apparatus driving a valve for opening or closing a high-pressure liquid passage is increased and valve bouncing is alleviated by a surface...
7219698 Device for generating a mixture of reducing agent and air  
A device used in an exhaust gas posttreatment system of an internal combustion engine has a mixing chamber into which reducing agent controlled by a metering valve, and air under pressure, can be...
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....
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...
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...
7178704 Electrically-operated dispenser  
An electrically-operating liquid dispenser having an U-shaped pole. Windings of an electromagnetic coil are wound about the legs of the U-shaped pole and are energized selectively for moving an...
7178490 Device for hydraulic valve lift switching  
The invention relates to a device for electrohydraulic valve lift switching with a hydraulically activatable actuating element for bringing about valve lift switching, which is connected to an oil...
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...
7159843 Non-sliding valve  
A solenoid valve moves an armature back and forth translationally between valve open and valve closed positions without the armature having any sliding engagement with any fixed valve part. This is...
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...
7147202 Tank vent valve  
A canister-purge valve for the metered admixing of a fuel scavenged from a fuel tank of an internal combustion engine into the internal combustion engine includes a valve seat and a valve body...
7131408 Method and arrangement for controlling an internal combustion engine  
The invention is directed to a method and an arrangement for controlling an internal combustion engine ( 20 ) which achieve an optimal efficiency in different operating states. An opening time of...
7124720 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...
7121523 Fluid control valve  
Particularly in an engine that has been inactive for a substantial period of time at a cold temperature, fluid forces acting on moving members, such as electronically-activated fluid control...
7121264 Adjustable pressure regulating valve for fuel injection systems  
A fuel injection system for internal combustion engines including a high-pressure reservoir which is acted upon by fuel at high pressure via a high-pressure feed unit and supplies fuel injectors...
7111595 Electromechanical valve control actuator for internal combustion engines  
A valve actuator for internal combustion engines, includes at least one electromagnet and a magnetic plate, whose movement controls the displacement of the valve. The parameters of the...
7107945 Electromagnetically driven valve control system and method  
In an electromagnetically driven valve control system, it is determined whether an electromagnetically driven valve is in an attraction period at which a valve body is displaced. When it is...
7097150 Electromechanical valve control actuator for internal combustion engines and internal combustion engine equipped with such an actuator  
An electromechanical valve control actuator for internal combustion engines, includes an electromagnet with a magnet and a mobile magnetic plate moving into the vicinity of the electromagnet. The...
7095304 Solenoid air valve  
According to a solenoid air valve, a flange portion of a moving core and a flange portion area of a bobbin implement a stop area defining a distance of travel of the moving core in a direction away...
7093779 Fuel injection valve  
A fuel injector, in particular a fuel injector for fuel-injection systems of internal combustion engines, has a valve needle which cooperates with a valve-seat surface to form a sealing seat, and...
7089895 Valve operation in an internal combustion engine  
An apparatus and method for operating a plurality of valves in an engine uses valve actuators to move each valve. Accelerometers are used to detect acceleration of the valves and particularly the...
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