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Electrically Actuated Injector

Electrically Actuated Injector patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

Related Categories:

Internal-combustion Engines


Charge Forming Device (e.g., Pollution Control) > Fuel Injection System > Electrically Actuated Injector



Control apparatus for internal combustion engine
12/18/14 - 20140366846 - A control apparatus for an internal combustion engine includes a fuel injection valve having a nozzle body that includes a fuel receiving part provided at a downstream side of a seat part with which a seat contact part comes into contact, and a plurality of nozzle holes. The control apparatus...

Fuel injection device
12/11/14 - 20140360472 - A fuel injection device for smooth discharge of a gas accumulated therein comprising a fuel pump, a solenoid valve for injecting pressurized fuel into the intake passage of an engine, a high-pressure fuel passage extending from the fuel pump to the solenoid valve and has a medially positioned constant-pressure chamber,...

Dual fuel injector with f, a and z orifice control
10/23/14 - 20140311455 - A dual fuel injector utilizes first and second control valves to open and close first and second nozzle outlet sets to inject a first fuel and a second fuel, respectively. The first and second fuels may be natural gas and liquid diesel, respectively. Control over liquid and diesel fuel injection...

Injection timing management in dual fuel engine system
10/02/14 - 20140290623 - A fuel injection timing management system for a dual fuel engine is configured to determine a first diesel injection timing corresponding to a first mode of operation of the engine system and a second diesel injection timing corresponding to a second mode of operation. Further, determine a direction of change...

Engine control system having a variable orifice
09/18/14 - 20140261333 - A control system for an engine is disclosed. The control system may have a first gaseous-fuel injector configured to inject gaseous fuel into a first intake passage associated with at least a first cylinder and a second gaseous-fuel injector configured to inject gaseous fuel into a second intake passage associated...

Fuel injection method and combustion engine with early pre-injection
09/11/14 - 20140251278 - A fuel injection method in an internal combustion engine and an internal combustion engine for performing the fuel injection method. The method includes heating fuel to a temperature between 300° F. and 840° F. (150 and 450° C.); pressurizing the fuel to a pressure exceeding 40 bar; pre-injecting at least...

Control device for internal combustion engine
07/10/14 - 20140190452 - An internal combustion engine has an ignition promotion unit that has a function of promoting ignition of fuel sprays formed by the small quantity injections by supplying the fuel sprays with electric energy. The engine is provided with a control device which has a combustion control unit that carries out...

Control device for in-cylinder injection type internal combustion engine
07/03/14 - 20140182557 - Provided with a control device for an in-cylinder injection type internal combustion engine that reduces an amount of fuel attaching to and remaining on a piston crown surface and a cylinder bore wall surface so as to suppress an increase in the number of exhaust particles of PM when fuel...

Leaschauer engine
07/03/14 - 20140182558 - Disclosed herein is a novel ICE termed the Leaschauer Engine (LE). The Leaschauer Engine (LE) is a single or multiple step compression cycle ICE machine, employing the Pressure/Heat Detonation Principle (Diesel Principle). The Leaschauer Engine differs significantly from a conventional ICE machine by its ability to employ extreme combustion pressure...

Fuel injection valve
06/26/14 - 20140174405 - A sub out-orifice and an in-orifice are respectively formed in a low pressure passage and a high pressure passage of a fixed plate. A control valve is provided at an outlet port of the low pressure passage. In a normal control, the control valve starts its control-valve opening operation when...

Crawler construction machine
06/05/14 - 20140150750 - In a crawler construction machine including an engine and a fuel adjustment dial that adjusts a speed of the engine according to operation loads of the working equipment, the fuel adjustment dial is a rotary notchless dial that is continuously variably adjustable. The crawler construction machine includes: an adjustment position...

Fuel injection apparatus for internal combustion engine
05/22/14 - 20140137842 - A fuel injection valve (21) is provided with a plurality of injection holes (25) arranged at intervals in a lateral direction, when a direction in which a central axis (CL) of the cylinder (2) extends is a vertical direction, so that the plurality of injection holes (25) are directed radially....

Method of operating engine
05/15/14 - 20140130778 - A method of operating an engine is disclosed. The method includes estimating an operational status of a cryogenic pump selectively driven by the engine. The cryogenic pump is configured to pressurize a liquefied gaseous fuel. The method also includes estimating a power requirement of the cryogenic pump. The method further...

Fuel injection systems with enhanced thrust
05/08/14 - 20140123953 - Methods, systems, and devices are disclosed for injecting a fuel using Lorentz forces. In one aspect, a method to inject a fuel includes distributing a fuel between electrodes configured at a port of a chamber, generating an ion current of ionized fuel particles by applying an electric field between the...

Fuel supply system and fuel supply method for internal combustion engine
05/01/14 - 20140116394 - A fuel supply system for an internal combustion engine includes a heat exchanger that has a heat exchanging wall between a liquefied fuel passage and an engine coolant passage. Heated and vaporized fuel flowing out from the liquefied fuel passage of the heat exchanger is supplied to the internal combustion...

Dual check fuel injector and fuel system using same
02/06/14 - 20140034023 - A fuel injector includes a first check valve member that seats on an injector body, and a second check valve member that seats on the first check valve member covers a first nozzle outlet set when in a closed position. When the first check valve member moves to an open...

Control device and method for internal combustion engine
02/06/14 - 20140034024 - It is an object of the invention to provide an at of realizing good combustion by lowering a combustion critical temperature below a temperature of intake air sucked into a cylinder, in the case where a first fuel that is difficult to ignite and a second fuel that is easy...

Method for controlling catalytic converter heating measures in an internal combustion engine having two injectors per cylinder
01/09/14 - 20140007846 - An injection system for an internal combustion engine having at least one combustion chamber is provided, the wall of the combustion chamber having a first inlet port, which is closable by a first inlet valve, and a second inlet port, which is closable by a second inlet valve, the injection...

Method for activating an injector in a fuel injection system in an internal combustion engine
01/09/14 - 20140007847 - A method for activating an injector in a fuel injection system in an internal combustion engine, the fuel injection system including a plurality of injectors and a quantity of fuel injected with the aid of an injector being a function of the activation period of the injector. An injector-individual correction...

Fuel injector closing timing adjustment systems and methods
01/02/14 - 20140000564 - A system for a vehicle includes a voltage measuring module, a second derivative module, a closing period module, and an injector driver module. The voltage measuring module measures first and second voltages at first and second electrical connectors of a fuel injector that injects fuel directly into a cylinder of...

Injection valve
01/02/14 - 20140000565 - An injection valve may have a nozzle body with a longitudinal axis, in which a nozzle body aperture and at least one injection opening are arranged, wherein the nozzle body aperture can be coupled hydraulically to a high-pressure circuit for a fluid, at least one nozzle needle arranged in an...

Fuel injection system for diesel engines with compression ignition
12/05/13 - 20130319376 - In a fuel injection system and method for a diesel engine with compression induced ignition, NOx emissions are reduced by providing a supplemental fuel injection from a supplemental injection nozzle, in addition to the primary fuel injection through a primary injection nozzle. The supplemental injection nozzle injects a supplemental quantity...

Relief valve for high-pressure fuel pump
11/21/13 - 20130306033 - A relief valve includes a valving element, a movable holder, a housing having a guide hole and a valve seat, and a resilient member. The valving element is lifted from its seated state, in which the valving element is engaged with the valve seat, toward a pressurizing chamber in a...

Fuel injector
10/03/13 - 20130255637 - A body 600 of a fuel injector 1000 according to the present invention includes: a needle valve mechanism 200 including a needle valve 252 provided near a nozzle portion 250, and a fuel chamber 254; a needle valve actuator 230 mounted with a piston 235 on a center, wherein a...

Gas fuel pressure control device
10/03/13 - 20130255638 - A regulator is provided with a first pressure reducing valve, a second pressure reducing valve, and a load adjusting part. A gas fuel pressure in a fuel tank is reduced to 1.4 MPa from 20 MPa by the first pressure reducing valve, and then reduced to 0.2 to 0.65 MPa...

Method for operating an internal combustion engine with assistance from an electric machine, and internal combustion engine
10/03/13 - 20130255639 - A method for operating an internal combustion engine is disclosed, in which method test injections are carried out in order to adapt, during the operation of the internal combustion engine, the injection parameters used for the control of the injection processes. For this purpose, during the test injections, an electric...

Engine start control system
09/26/13 - 20130247878 - In the process of starting by a recoil starter, a maximum value detection section of an ECM detects a maximum value of pressure (basic atmospheric pressure) in an intake pipe detected by a pressure sensor, within a predetermined range of crank angle after activation of the ECM. An idling control...

Fuel injector with a variable orifice
08/08/13 - 20130199501 - A variable orifice fuel injector has both an inward opening needle valve and an outward opening needle valve and has means to inject fuel in different hollow conical spray patterns and conventional multiple jet spray patterns selectively and independently....

Method and control unit for controlling an internal combustion engine
07/18/13 - 20130180506 - A method and a control unit are disclosed for controlling a single-cylinder or multiple-cylinder internal combustion engine having at least one fuel injector per cylinder, at least one camshaft for actuating inlet valves and/or outlet valves, and having a control unit which controls the fuel injectors in such a way...

Fuel supply device for internal combustion engine
07/11/13 - 20130174811 - A temperature reduction control for reducing the temperature of an injector is performed through first to third fuel supply control routines executed by an electronic control device. When the temperature of the injector is reduced by the execution of the temperature reduction control, heat transfer to the vicinity of the...

Fuel injection valve and method of manufacturing the same
03/28/13 - 20130074808 - A fuel injection valve includes a solenoid device which generates a magnetic sucking force; a core provided inside the solenoid device; a movable valve element composed of an armature coming into contact with the core, a pipe section whose one end is joined to the armature, and a valve section...

Injector valve with miniscule actuator displacement
03/21/13 - 20130068200 - An injector comprising one or more piezoelectric driving stacks wherein a flow control member of the injector is driven directly by the one or more piezoelectric stacks without additional amplification means or interposing elements while a flow area of the nozzle is variably adjustable to deliver controlled flow rates in...

Fuel injection valve
10/04/12 - 20120247427 - where W is width of the communication passage; and D is diameter of the swirl imparting chamber....

Method and control unit for operating a valve
10/04/12 - 20120247428 - In a method for operating a valve, e.g., a fuel injector of an internal combustion engine in a motor vehicle which is activated with the aid of an actuator, the actuator is activated using a control variable which has a predetermined control period. The control period is formed as a...

Fuel injection device
09/13/12 - 20120227709 - In a fuel injection device, a driving unit structure has a magnetic aperture, in which an inner diameter is gradually enlarged toward the mover side, provided in an inner peripheral surface of the magnetic core. It is possible to reduce magnetic delay time upon valve opening from the supply of...

Gas combustion type driving tool
09/06/12 - 20120222654 - A gas combustion type driving tool is provided with a combustion portion; a fuel container for containing a fuel; an electromagnetic valve device for injecting the fuel into the combustion portion; and a grip portion. A distance from the fuel container to the combustion portion is set substantially equal to...

Integrated fuel injector igniters having force generating assemblies for injecting and igniting fuel and associated methods of use and manufacture
08/30/12 - 20120216782 - Embodiments of injectors configured for adaptively injecting and igniting various fuels in a combustion chamber are disclosed herein. An injector according to one embodiment includes an end portion configured to be positioned adjacent to a combustion chamber, and an ignition feature carried by the end portion and configured to generate...

Electromagnetic fuel injection valve
08/16/12 - 20120204839 - The chromium film layer is formed by setting a positive electrode for plating on a central axis line of the movable core. An end face of a movable core base material, on which at least either the first impact surface or the second impact surface is formed, has a sloped...

Method for driving a solenoid valve of a fuel injector
07/19/12 - 20120180762 - A battery supplies power to a solenoid valve at a voltage and by a DC/DC boost converter at a boost voltage that is higher than the battery voltage. Operating parameters of the injector are stored that include at least peak high and peak low currents and peak phase duration. A...

Fluid injector having a novel inlet valve arrangement
04/12/12 - 20120085323 - With reference to FIG. 3, the present invention provides a fluid injector (10) which functions as a positive displacement pump and comprises: a housing (12) in which a piston chamber is formed; a piston (11) which reciprocates in the piston chamber to define therewith a variable volume fluid pumping chamber;...

Fuel injector
04/05/12 - 20120080011 - A fuel injector includes a nozzle body with a nozzle bore, a first valve needle received within the nozzle bore and being engageable with a first seat region to control fuel delivery through a first set of nozzle outlets, and a second valve needle received within a valve bore provided...

Piezoelectric fuel injector system, method for estimating timing characteristics of a fuel injection event
03/01/12 - 20120048239 - This disclosure provides a fuel injector system and method in which the timing of events in during period of fuel injection of a piezoelectric-actuated fuel injector are estimated based on sensed forces within the injector. The force sensor is positioned between a piezoelectric actuator and a hydraulic link assembly mechanically...

Apparatus for injecting fuel into the combustion chamber of an internal combustion engine
01/12/12 - 20120006301 - In an apparatus for injecting fuel into the combustion chamber of an internal combustion engine, including an injection nozzle (5) having an axially displaceable nozzle needle (17) to which the pressure present in a control chamber (13) filled with fuel can be applied in the axial direction to control the...

Internal combustion engine
11/24/11 - 20110283974 - An internal combustion engine has at least one combustion chamber which may be closed by an intake valve, at least one air intake port which leads to the intake valve, and a fuel injection device which in association with the at least one combustion chamber has a first injector and...

Fuel injection device
08/18/11 - 20110197858 - [Means] There is provided a fuel injection device (3A) comprising a fuel pump (31), a solenoid valve (32) for injecting pressurized fuel into the intake passage (10) of an engine (1), a high-pressure fuel passage (36) that extends from the fuel pump (31) to the solenoid valve (32) and has...

Fuel injection nozzle and fuel injection valve, and fuel injection control system using the same
07/07/11 - 20110162623 - Needles include a cylindrical outer needle that is brought into contact with and moved away from a nozzle body (113) to open and close an injection hole (1132) and an inner needle (112), slidably inserted in the outer needle (111), that is moved into and out of a sack-tip-portion space...

Multi-layer piezoelectric element, and injection device and fuel injection system using the same
06/30/11 - 20110155104 - Provided is a highly durable multi-layer piezoelectric element wherein an external electrode has less possibilities of being peeled off from a side face of a stacked body even when the element is continuously driven for a long period of time in a high electrical field under high pressure. In a...

Fuel injector actuator assemblies and associated methods of use and manufacture
03/03/11 - 20110048381 - The present disclosure is directed to integrated injector/igniters providing efficient injection, ignition, and complete combustion of various types of fuels. One example of such an injectors/igniter can include a body having a base portion opposite a nozzle portion. The base portion receives the fuel into the body and the nozzle...

Injection nozzle for fuel with ball valve
12/16/10 - 20100313852 - The invention relates to a fuel injector comprising a nozzle retainer or an injector body, a valve body and a nozzle body, in which a preferably needle-shaped injection valve member is arranged to be vertically movable, said member releasing or closing at least one injection port leading to a combustion...

Piezoelectric direct acting fuel injector with hydraulic link
12/16/10 - 20100313853 - A piezoelectric-actuated fuel injector for injecting fuel into a combustion chamber of an internal combustion engine is provided which includes a piezoelectric actuator movable to expand in a first direction and movable to contract in a second direction opposite the first direction, and a hydraulic link assembly disposed within a...

Fuel injector
10/21/10 - 20100263631 - A fuel injector includes an excitable actuator in the form of an electromagnetic circuit having a magnetic coil, an outer magnetic circuit component and a movable armature for actuating a valve-closure member, which interacts with a valve seat provided on a valve seat body. The outer cup-shaped magnetic circuit component...

Nozzle assembly a fuel injector and an internal combustion engine comprising such an injector
09/16/10 - 20100229832 - This nozzle assembly (1) comprises a first needle (11) and a second needle (12) controlling respectively fuel flow towards a first series of outlets (213) and a second series of outlets (223). It includes a passive control valve (18) adapted to select, on the basis of the fuel feeding pressure,...

Reverse operating nonlinear spring
09/16/10 - 20100229833 - The present invention provides an apparatus for enabling operation of a piezoelectric actuator, comprising a spring configured to provide a compressive force to a piezoelectric element of a piezoelectric actuator, wherein the compressive force varies with displacement of the piezoelectric element such that the compressive force is less at a...

Piezoelectric actuator module with a protective layer system, and a method for its production
08/12/10 - 20100199952 - A piezoelectric actuator module is proposed having one or a plurality of piezoelectric actuators which is or are clamped in between an actuator head and an actuator base. According to the invention, at least the piezoelectric actuator is provided with a protection layer system. Provision is made of at least...

Method for operating an injector
07/29/10 - 20100186718 - A method is described for operating an injector, in particular an injector of an injection system of an internal combustion engine, the injector including a piezoelectric actuator that is connected to a valve needle via a coupling element, an electric voltage being applied to the piezoelectric actuator, resulting in an...

Self-guided armature in single pole solenoid actuator assembly and fuel injector using same
07/29/10 - 20100186719 - A self-guided armature assembly for a single pole solenoid assembly includes an armature stem and an armature. The solenoid assembly includes a flux ring component and an actuator body. The armature is movable inside the flux ring. An axial air gap is defined between the top armature surface of the...

Barrier coatings for a piezoelectric device
07/22/10 - 20100180865 - Provided are barrier coatings and methods for applying barrier coatings to piezoelectric actuators that are intended for use in automotive fuel injectors. The barrier coatings are characterised by the presence of at least one organic layer, and additionally metal and/or non-metallic inorganic layers. The barrier coatings described show advantage in...

System and method for defining piezoelectric actuator waveform
07/22/10 - 20100180866 - A system and method for defining a signal for driving a piezoelectric actuator, comprising defining a wave profile corresponding to a voltage waveform of a signal for actuating a piezoelectric actuator; modifying the wave profile such that an operational profile of the piezoelectric actuator is adjusted; and providing the signal...

Lead-zirconate-titanate ceramic having texturing, method for the production of the ceramic, and use of the ceramic
07/22/10 - 20100180867 - A lead-zirconate-titanate ceramic has texturing, with textured nuclei containing barium-titanate crystallites, wherein the barium-titanate crystallites have a substantially equal crystal characteristic, including form anisotropy, and an orientation in the lead-zirconate-titanate ceramic. A method for the production of a PZT ceramic has the following steps: a) providing the barium-titanate crystallite, b)...

Method of poling ferroelectric materials
07/15/10 - 20100175669 - A method of poling a ferroelectric sample suitable for use in a fuel injector of an internal combustion engine, the method comprising providing a ferroelectric sample having a stack of ferroelectric layers, wherein adjacent layers are separated by internal electrodes, forming a first group and a second group of electrodes;...

Stacked piezoelectric device
06/10/10 - 20100139621 - A stacked piezoelectric device 1 includes a ceramic laminate 15 formed by laminating a plurality of piezoelectric ceramic layers 11 and a plurality of inner electrode layers 13 and 14 alternately and a pair of side electrodes 17 and 18 formed on side surfaces thereof. The inner electrode layers 13...

Fuel injector having integral body guide and nozzle case for pressure containment
04/01/10 - 20100077994 - A fuel injector includes a body piece that defines a nozzle supply passage and a chamber in fluid communication therewith and configured to contain a fluid pressure within the fuel injector. The body piece has a threaded segment and a second, unthreaded segment that includes an outer surface of the...

Injection valve
03/25/10 - 20100071669 - An injection valve (62) has an injection body (38) with a first cavity (7), wherein a valve body (4) is at least partially disposed and wherein an armature collar (28) is axially movable. The valve body (4) has a second cavity (8), wherein a valve needle (10) is axially movable....

Piezoelectric actuator with a sheathing composed of a composite material
02/11/10 - 20100031929 - A piezoelectric actuator for flowing-around media, with a piezo element arranged between two end caps. The piezo element is surrounded by a ring-shaped sheathing connected to the end caps. The sheathing consists, at least in portions, of a composite material with at least two layers, at least one layer consisting...

Upper guide system for solenoid actuated fuel injectors
01/28/10 - 20100018503 - An upper guide system for a solenoid actuated fuel injector of an internal combustion engine includes an armature and a guide ring having a cylindrical shape and surrounding the armature and positioning the armature in a radial direction. The location of the upper guide system is substantially in the same...

Fuel injector
01/14/10 - 20100006068 - A fuel injector for fuel injection systems of internal combustion engines is described. The fuel injector includes an electromagnetic actuating element having a magnetic coil, a core and a valve jacket as the outer magnetic circuit component and a movable valve-closure member which interacts with a valve-seat surface assigned to...

Fuel injector with balanced metering servovalve for an internal-combustion engine
12/31/09 - 20090320800 - The injector comprises a balanced metering servovalve for controlling a rod for opening/closing a nebulizer. The servovalve has a valve body having a control chamber provided with an outlet passage that is opened/closed by an axially mobile open/close element. The open/close element is made of a single piece with a...

Fuel injector with high stability of operation for an internal-combustion engine
12/31/09 - 20090320801 - The injector comprises a dosing servo valve for controlling a rod for opening/closing a nebulizer. The servo valve has a valve body having a control chamber provided with an outlet passage that is opened/closed by an open/close element that is axially movable. The open/close element is separate from an anchor...

Fuel injector provided with a metering servovalve of a balanced type for an internal-combustion engine
12/31/09 - 20090320802 - A fuel injector has an injector body and a control rod, which is movable in the injector body along an axis for controlling opening/closing of a nozzle that injects fuel in an engine cylinder; the injector body houses a metering servovalve, provided with a control chamber and with an open/close...

Fuel injector with an improved control valve
12/17/09 - 20090308353 - The invention relates to a fuel injector (1) for injecting fuel into a combustion chamber of an internal combustion engine, said injector comprising a nozzle needle (4) which moves back and forth in an injector body (2) and/or in a nozzle body (3) in order to release and/or to close...

Piezoelectric actuator
12/10/09 - 20090301440 - A piezoelectric actuator arrangement (30) for use in a fuel injector (2), the actuator arrangement (30) comprising a stack (36) of one or more piezoelectric elements for receipt with an fluid chamber (12) of the injector (2), electrode means for generating an electric field within the stack (36), in use,...