Class / Patent application number | Description | Number of patent applications / Date published |
123476000 | Magnetically actuated switching | 22 |
20090007886 | Electromagnetic fuel injection valve - In an electromagnetic fuel injection valve in which a first resin-molded layer that is made of a synthetic resin, covers a solenoid section, and forms a coupler main portion that defines a framework of a power-receiving coupler is covered by a second resin-molded layer made of a synthetic resin that is different from that of the first resin-molded layer so that an outer face of the coupler main portion is exposed from a middle part up to the extremity of the coupler main portion, an endless engagement groove ( | 01-08-2009 |
20090007887 | FUEL INJECTION VALVE - A fuel injection valve is provided with a main body and a valve member. The main body has a fuel passage and a fuel injection opening formed at the downstream-end of the fuel passage. The valve member is provided in the fuel passage. The valve member is configured to move between a first position in which the valve member closes the fuel injection opening and a second position in which the valve member opens the fuel injection opening. A hardened layer is formed on abutment surfaces of the valve member and the main body that abut with each other. The hardness of this hardened layer is lower in its surface side than in its bottom side. According to this structure, the stress generated inside the hardened layer is suppressed, and breakage and detachment of the hardened layer are prevented. | 01-08-2009 |
20090107463 | FUEL INJECTION VALVE - A valve element is movable in a main body for opening and closing the nozzle hole. A pressure control chamber is formed at an end of the valve element and configured to receive high-pressure fuel to bias the valve element so as to close a nozzle hole. A first communication passage communicates the pressure control chamber with a low pressure side. An accommodating chamber is located downstream of the first communication passage and acommodates a valve member. A low-pressure opening is for exhausting fuel from the accommodating chamber. The valve member has a valve portion to control fuel flowing from the pressure control chamber to the low pressure side. The accommodating chamber and the low-pressure opening therebetween has a passage, which defines a throttle portion. | 04-30-2009 |
20090139491 | SOLENOID ASSEMBLY HAVING SLOTTED STATOR - A solenoid assembly is disclosed. The solenoid assembly has a housing having a cavity disposed therein. The solenoid assembly also has a unitary stator having a plurality of separated portions. The separated portions are held together by at least one lip located on an outer periphery of the stator. The stator is sized to fit within the cavity disposed in the housing. | 06-04-2009 |
20090165750 | FUEL INJECTION VALVE - A fuel injection valve is provided that includes an electromagnetic actuator (A | 07-02-2009 |
20090205614 | Device for the injection of fuel into the combusition chamber of an internal combustion engine - In a device for the injection of fuel into the combustion chamber of an internal combustion engine, including an injector nozzle ( | 08-20-2009 |
20090241908 | Controlling Apparatus of Variable Capacity Type Fuel Pump and Fuel Supply System - A controlling apparatus of a variable capacity type fuel pump, for avoiding noises caused due to drive of the fuel pump and noises caused due to drive of injectors from overlapping or duplicating with each other in the timing thereof, wherein signals for driving the pump reduced, or the timing thereof is shifted forward/backward, within a specific timing where the o overlapping can be prospected, or a specific timing where they are determined to overlap or duplicate with each other. | 10-01-2009 |
20090301441 | FUEL SUPPLY APPARATUS - A movable portion is movable from a closed position, in which the movable portion is in contact with a valve element, to an opened position so as to supply fuel from a fuel portion to a compression chamber through a fuel passage. A drive control unit supplies of a small driving current, which is sufficient to maintain the movable portion at the closed position, to a coil portion so as to move the movable portion from the opened position to the closed position. The drive control unit switches the supply of the small driving current to supply of the large driving current in the course of the movement of the movable portion to the closed position by supplying the small driving current. | 12-10-2009 |
20090308354 | FUEL INJECTOR COMPRISING A PRESSURE-COMPENSATED CONTROL VALVE - The invention relates to an injector for injecting fuel into a combustion chamber of an internal combustion engine. According to the invention, an injection valve member, which opens or closes at least one injection opening, is controlled by a control valve. The control valve opens or closes a connection from a control chamber into a fuel return line by the positioning of a closing element in a seat or by the opening of the seat. A bore is embodied in the closing element, and a pin is received in the bore. The diameter of the bore essentially corresponds to the diameter of the seat. The pin is supported on one side against a pressure rod, against a spring seat, or against the injector housing. | 12-17-2009 |
20100043757 | Circuit Arrangement and Method for Operating an Inductive Load - A circuit and a method for operating an inductive load, for example a fuel injector, in which rapid response of the load can be realized and, at the same time, small electrical power loss. A functional isolation of the rapid current buildup at the beginning of an energizing phase and a subsequent setting of the load current is provided, wherein the supply to the load takes place during the first operating phase from a “boost voltage” and during the second operating phase from the comparatively lower second operating voltage. In the second operating phase, a desired load current is set by suitably switching the second operating voltage on an off at the load. This intermittent operation causes lower switching losses, which are yet further reduced by the second operating voltage being matched, i.e. not being fixedly predetermined but being changed if necessary on the basis of monitoring of the load current. | 02-25-2010 |
20100065021 | Fuel Injection Valve - In a fuel injection valve used for an internal combustion engine, a valve closing lag time due to fluid resistance in a fuel path is shortened to decrease a minimum injection limit. More specifically, in the fuel injection valve in which an anchor is attracted to an end face part of a stationary core having a fuel path formed at a center part thereof by means of electromagnetic force, and in which a fuel injection hole is opened and closed by controlling a valve disc driven in conjunction with the anchor, there are provided a fuel reservoir part at a center part of an upper end face part of the anchor, a through hole extending axially in a fashion that an end part thereof is open to the fuel reservoir part, and a fuel path extending radially outward from the fuel reservoir part so that fuel is fed to a magnetic attraction gap between an upper end face part of the anchor and a lower end face part of the stationary core. Further, an opening part of a through hole that is open to an upper end face part of the anchor is at least partially opposed to a fuel introduction bore formed in the stationary core, and on the opening part of the through hole, a fuel introduction part is provided for capturing fuel running radially outward from a center side part of the anchor and for guiding the fuel thus captured to the through hole. | 03-18-2010 |
20100126471 | DUAL SOLENOID FUEL INJECTOR WITH CATALYTIC ACTIVATOR SECTION - The present invention is provides a fuel injector having a hydraulically actuated injection pin, also referred to as an injector stem. In accordance with invention, the fuel injector provides for more efficient fuel combustion within internal combustion engines, such as vehicle engines. According to various embodiments of the invention, the fuel injector achieves efficient fuel combustion by (i) fast and responsive actuation, (ii) heating the fuel to a supercritical temperature, (iii) maintaining fuel at a supercritical pressure, and (iv) using a catalyst in the oxidization of the fuel. Some embodiments of the invention utilize a dual solenoid to actuate the fuel injector pin and a heating element to heat the fuel to a supercritical temperature. | 05-27-2010 |
20100263632 | Control Apparatus and Control Method for Internal Combustion Engine - Even when a current waveform and a current value of a current which is supplied to an injector is changed in order to extend a dynamic range of the injector, fuel injection quantity precision is maintained and enhanced. A correction time for correcting an opening/closing delay of the aforementioned injector is variably set by a valve response delay time calculating unit | 10-21-2010 |
20100294243 | FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES - Disclosed is a fuel injection valve ( | 11-25-2010 |
20110239991 | FUEL INJECTOR WITH VARIABLE AREA POPPET NOZZLE - A fuel injector may include a housing, a poppet valve assembly, and an actuation assembly. The housing may define a longitudinal bore, a high pressure fuel duct in communication with the longitudinal bore and a valve seat including a valve seat surface and an aperture. The poppet valve assembly may include a stem and a valve head, be disposed within the longitudinal bore and be variably displaceable between a first position and a second position. In the first position, the valve head may abut the valve seat to seal the aperture. In the second position, the valve head may be displaced from the valve seat to open the aperture. The actuation assembly may operate to move the poppet valve assembly between the first position and the second position. The high pressure fuel duct may carry pressurized fuel that biases the poppet valve assembly to be in the first position. | 10-06-2011 |
20120037125 | PROGRAMMABLE DIESEL FUEL INJECTOR - An apparatus for injecting fuel into a combustion chamber of an internal combustion engine. The apparatus includes a solid magnetostrictive material with a favored direction of magnetostrictive response formed into a shape with ends that are substantially parallel to each other and substantially perpendicular to the favored direction of magnetostrictive response. A fuel control valve element is located coaxial to the favored direction of magnetoelastic response of the magnetostrictive material, the element opening inwardly. A solenoid coil is located concentric with the magnetostrictive material and coaxial to the favored direction of magnetoelastic response, the solenoid coil adapted to excite the magnetostrictive material into mechanical motion. An excitation signal is provided within the solenoid coil consisting of a main current signal with a superposed alternating signal approximately the width of a hysteresis loop of the solid magnetostrictive material. Finally, a magnetic return path circuit in magnetic communication with the solid magnetostrictive material is provided. | 02-16-2012 |
20120037126 | PROGRAMMABLE DIESEL FUEL INJECTOR - An apparatus for injecting fuel into a combustion chamber of an internal combustion engine. The apparatus includes a solid magnetostrictive material with a favored direction of magnetostrictive response formed into a shape with ends that are substantially parallel to each other and substantially perpendicular to the favored direction of magnetostrictive response. A fuel control valve element is located coaxial to the favored direction of magnetoelastic response of the magnetostrictive material, the element opening inwardly. A solenoid coil is located concentric with the magnetostrictive material and coaxial to the favored direction of magnetoelastic response, the solenoid coil adapted to excite the magnetostrictive material into mechanical motion. An excitation signal is provided within the solenoid coil consisting of a signal, before a main current signal, sufficient to cause magnetic domain alignment but not rotation, and finally a magnetic return path circuit is provided in magnetic communication with the solid magnetostrictive material. | 02-16-2012 |
20120037127 | PROGRAMMABLE DIESEL FUEL INJECTOR - A programmable diesel fuel injector that increases frequency response and control precision over desired fuel flow rates throughout each injection event. All valve frequency and motional requirements are met by a compensated direct drive, which is enabled by the durable capability of a rare earth alloy to lengthen in a magnetic field. A continuously variable electrical input waveform is predetermined to result in the desired fuel injection rate shape. A magnetostrictive transducer converts voltage and current into continuously variable force and displacement of a master piston acting upon fuel within a closed chamber. A slave piston responds to the fuel pressure changes within the closed chamber and acts upon the spool of a spool valve to eject fuel. | 02-16-2012 |
20120037128 | DIPOLE TRIBOELECTRIC INJECTOR NOZZLE - The present invention relates to a fuel injector configuration that treats a dielectric fluid such as gasoline fuel with strong electric and, optionally, magnetic fields to form a homogeneous charged fuel or fuel/air mixture for combustion in an internal combustion engine. The electric field is supplied by a triboelectric dipole and the magnetic field is supplied by permanent magnets. Small charged fuel particles are produced and combust more readily than untreated particles. Fuel efficiency is increased and emissions are reduced. | 02-16-2012 |
20140261334 | DIPOLE TRIBOELECTRIC INJECTOR NOZZLE - The present invention relates to a fuel injector configuration that treats a dielectric fluid such as gasoline fuel with strong electric and, optionally, magnetic fields to form a homogeneous charged fuel or fuel/air mixture for combustion in an internal combustion engine. The electric field is supplied by a triboelectric dipole and the magnetic field is supplied by permanent magnets. Small charged fuel particles are produced and combust more readily than untreated particles. Fuel efficiency is increased and emissions are reduced. | 09-18-2014 |
20140311456 | Method and Device for Operating a Fuel Delivery Device of an Internal Combustion Engine - The disclosure relates to a method for operating a fuel delivery device of an internal combustion engine, in which method an electromagnetic actuating device of a volume control valve is switched such as to set a delivery volume, wherein an intensity of an energy that is supplied to the electromagnetic actuating device for switching purposes, in particular of a current supplied to the electromagnetic actuating device and/or a level of a voltage applied to the electromagnetic actuating device, depends at least intermittently on a rotational speed of the internal combustion engine. | 10-23-2014 |
20150377173 | METHOD FOR CONTROLLING AN INJECTION PROCESS OF A MAGNETIC INJECTOR - A method for controlling an injection operation of a magnetic injector of an internal combustion engine, the magnetic injector having a coil, the coil being impinged upon by a first current to open the magnetic injector, the coil being short-circuited to hold the magnetic injector open, and the coil being impinged upon by a second current to close the magnetic injector, the second current being directed oppositely to the first current. | 12-31-2015 |