| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 239533120 |
With discharge modifier*
| 36 |
| 239533900 |
Spring type or biased regulator*
| 10 |
| 239533110 |
With antifriction, guide or seal means for flow regulator*
| 6 |
| 239533400 |
With means to vary or pulse flow within engine cycle | 4 |
| 20080223959 | Injection Valve - The present invention relates to an injection nozzle for an internal combustion engine in a motor vehicle. A nozzle body has at least one spray hole, a nozzle needle mounted in the nozzle body with adjustable stroke for controlling an injection of fuel through the at least one spray hole. A booster piston is drive-coupled to an actuator and has a booster face which delimits a booster chamber. According to the invention, the nozzle needle has a control face which delimits a control chamber. In order to dampen the movement of the nozzle needle into its needle seat as the nozzle needle closes, a damping piston is arranged in the nozzle body with an adjustable stroke. The damping piston separates the control chamber from the booster chamber. A damping path is provided in the damping piston to hydraulically connect the control chamber to the booster chamber in a throttled manner. | 09-18-2008 |
| 20160040640 | FLUID INJECTION DEVICE - A fluid injection device for a combustion engine comprising a nozzle body, a first nozzle needle being arranged inside the nozzle body and configured as a hollow needle, and a second nozzle needle being arranged inside the first nozzle needle, wherein the first nozzle needle and the second nozzle needle are axially displaceable. The second nozzle needle constitutes the valve needle of a solenoid valve, and the second nozzle needle is configured as an at least partially pressure-compensated nozzle needle so that an axial movement of the second nozzle needle can be controlled by the solenoid valve without hydraulic transmission. | 02-11-2016 |
| 20080296413 | Accumulator Injection System for an Internal Combustion Engine - Disclosed is a high-pressure accumulator injection system ( | 12-04-2008 |
| 20090020632 | Fuel Injection Device For An Internal Combustion Engine - A fuel injection device for an internal combustion engine includes a housing and a valve element which is arranged in the housing. The valve element interacts, in the region of a fuel outlet opening, with a valve seat. The valve element is embodied by at least one first part and at least one second part which are coupled to one another by means of a hydraulic coupler. The hydraulic coupler has a coupling chamber which is delimited at least partially by a sleeve which is guided on the first part of the valve element. Additionally a guide element guides an end region of the first part of the valve element, which end region being oriented toward the second part of the valve element. | 01-22-2009 |
| 239533600 |
Manually adjustable | 4 |
| 20090078796 | FUEL INJECTOR AND METHOD FOR ITS ADJUSTMENT - A fuel injector for fuel injection systems of internal combustion engines, in particular for direct injection of fuel into the combustion chamber of an engine, including an actuator, a valve needle which is mechanically linked to the actuator and is acted upon by a restoring spring in a closing direction, for actuation of a valve closing body, which together with a valve seat face forms a sealing seat, and including a sleeve which pre-stresses the restoring spring. An adjusting body is situated adjustably in the sleeve so that a fuel amount flowing through the fuel injector per unit of time is a function of the position of the adjusting body in the sleeve. | 03-26-2009 |
| 20090272823 | METHOD FOR CONTROLLING A FUEL INJECTION APPARATUS - The invention relates to a method for controlling a fuel injection apparatus, in particular a piezoelectric injector. Here, the fuel quantity which is injected into the combustion chamber is set by a mechanically actuable injector needle ( | 11-05-2009 |
| 20100019066 | INJECTION VALVE - An injection valve has a valve body and a nozzle body which is resting in a sealing fashion against the valve body, with a first valve body bore, in which bore a control piston and a stroke adjusting bolt are arranged so as to be moveable in the axial direction, with the control piston being embodied in order to be moved by a control means, with a second bore being provided in the nozzle body, with a nozzle needle being arranged in the second bore, the nozzle needle being provided to open or close an injection opening, with a tension spring being provided in the second bore, the tension spring stressing the nozzle needle in the direction of a sealing seat for the injection opening, with the first and second bore being actively connected to one another and with the stroke adjusting bolt being actively connected to the nozzle needle. | 01-28-2010 |
| 20110073682 | Fuel Injection Valve - A fuel injection valve comprises a valve return spring as a coil spring that applies a spring force to a movable valve element toward a valve seat and an adjuster that is used for adjusting a spring force by adjusting the amount of spring compression. The injection valve is provided with parts supporting respectively both ends of the spring in the axial direction, and the parts rotatable in the circumferential direction of the spring. | 03-31-2011 |
| 239533800 |
Regulator* biased to closed position by a fluid | 2 |
| 20080223960 | Fuel injection valve - A fuel injection valve includes a main body having a nozzle hole and a compression chamber. The main body accommodates a compression unit for pressurizing fuel accumulated in the compression chamber. The fuel injection valve further includes a valve element being axially movable in the main body. The valve element includes a valve portion and a pressure-receiving portion. The valve portion is movable in an opening direction to open the nozzle hole in response to pressure of fuel being pressurized by the compression unit and applied to the pressure-receiving portion. A regulating unit is provided in the compression chamber for regulating movement of the valve element with respect to the opening direction. | 09-18-2008 |
| 20110017844 | FUEL INJECTOR WITH AN IMPROVED VALVE CONTROL ARRANGEMENT - A fuel injector for a compression ignition internal combustion engine which comprises a fuel injection valve having an injection valve member which is moveable in use, under the influence of fuel pressure within an injection valve member control chamber acting upon it, between a closed position and an open position. The fuel injector further comprises a high pressure fuel supply passage to the injection valve member control chamber, and an actuator operable to open and close a discharge valve connected between the injection valve member control chamber and a fuel outlet passage to a low pressure reservoir or drain. A shut-off valve is provided in the high pressure fuel supply passage and the shut-off valve has a shut-off valve member which is moveable in use, under the influence of fuel pressure within a shut-off valve member control chamber acting upon it, between a closed position and an open position. The shut-off valve member control chamber is connectable to the low pressure reservoir or drain via the discharge valve, and a fuel transfer passage is provided between the injection valve member control chamber and the low pressure reservoir or drain. | 01-27-2011 |
| 239533700 |
Regulator* upstream of outlet port opens in direction of flow | 1 |
| 20080237373 | Intermediate Plate for a Fuel Injector, and Fuel Injector - The invention relates to an intermediate plate for a fuel injector, comprising a high-pressure through-hole which connects a high-pressure passage in a valve body and is connected to a high-pressure fuel reservoir, to a high-pressure space in a nozzle body, wherein the intermediate plate is arranged between the valve body and the nozzle body. In order to improve the injection behaviour of a fuel injector provided with the intermediate plate, in particular during multiple injection of small injection quantities, the high-pressure through-hole has a cross-sectional profile which improves the flow through the high-pressure through-hole from the valve body towards the nozzle body and impairs the flow in the opposite direction from the nozzle body towards the valve body. | 10-02-2008 |
| Entries |
| Document | Title | Date |
|---|
| 20080197216 | Arrangement Of Joint Packing Between the Pump-Injector (Injector) Body and Nozzle Body, For Internal Combustion Engines - Arrangement of joint packing between the pump-injector (injector) body ( | 08-21-2008 |
| 20080257989 | Fuel Injector with Balanced Metering Servovalve, for an Internal Combustion Engine - The injector comprises a balanced metering servovalve to control a rod for the opening/closing of a nozzle. La servovalve has a valve body with a control chamber radially delimited by a tubular portion and fitted with an outlet passage that is opened/closed by an axially movable shutter. The servovalve is also integral with an axial stem, provided with a lateral surface, through which the outlet channel exits. The shutter is coupled to the stem in an axially sliding manner and, when it closes the outlet passage, it is subjected to substantially null axial fuel pressure. The outlet passage has a calibrated segment distanced from the shutter and close to a bottom wall of the control chamber. The calibrated segment is carried by an element fixed to the valve body in correspondence to an axial segment of the outlet passage. | 10-23-2008 |
| 20080272214 | Fuel injector - A fuel injector comprising a nozzle having a nozzle needle which is moveable with respect to a first needle seat to control fuel delivery through a nozzle outlet. The injector includes a nozzle control valve for controlling fuel flow into a control chamber through a first passage to pressurise the control chamber, and for controlling fuel flow out of said control chamber through said first passage to depressurise the control chamber. Movement of the nozzle needle is controlled by fuel pressure within the control chamber, such that pressurising the control chamber causes the nozzle needle to be urged against the first needle seat to close the nozzle outlet, and depressurising the control chamber causes the nozzle needle to lift from the first needle seat to open the nozzle outlet. The nozzle needle defines, at least in part, a restricted passage through which fuel can flow into the control chamber as the control chamber depressurises. The fuel flow into the control chamber through the restricted passage serves to reduce the rate at which the control chamber depressurises, thereby reducing the rate at which the nozzle needle lifts from the first needle seat to open the nozzle outlet. | 11-06-2008 |
| 20080277504 | Multiple Intensifier Injectors with Positive Needle Control and Methods of Injection - Multiple intensifier injectors with positive needle control and methods of injection that reduce injector energy consumption. The intensifiers are disposed about the axis of the injectors, leaving the center free for direct needle control down the center of the injector. Also disclosed is a boost system, increasing the needle closing velocity but without adding mass to the needle when finally closing. Direct needle control allows maintaining injection pressure on the fuel between injection events if the control system determines that enough fuel has been pressurized for the next injection, thus saving substantial energy when operating an engine at less than maximum power, by not venting and re-pressurizing on every injection event. | 11-13-2008 |
| 20080302887 | Fuel Injector Having Directly Actuatable Injection Valve Element - A fuel injector for an internal combustion engine is proposed having a directly actuatable injection valve element. The fuel injector has a nozzle needle, axially guided in a nozzle body, and an actuator accommodated in an injector housing. The nozzle needle is connected to a coupling piston on the nozzle-needle side and the actuator is connected to a coupling piston on the actuator side. The coupling piston on the actuator side acts on a coupling chamber and the coupling piston on the nozzle-needle side acts on a control chamber. The nozzle needle is lifted from a nozzle-needle sealing seat as a function of the pressure in the control space. An intermediate plate is provided between injector housing and nozzle body. The plate has a conduit hydraulically connecting the coupling chamber to the control chamber. The conduit contains a hydraulic throttle which has at least two sections having different cross sections of flow. The section having the smaller cross section of flow faces the coupling chamber and the section having the larger cross section of flow faces the control chamber. The throttle disclosed suppresses oscillations of the actuator in the transmission of the actuator stroke to the nozzle needle stroke. | 12-11-2008 |
| 20080308656 | Fuel injector nozzle for an internal combustion engine - A direct injection fuel injector includes a nozzle tip having a plurality of passages allowing fluid communication between an inner nozzle tip surface portion and an outer nozzle tip surface portion and directly into a combustion chamber of an internal combustion engine. A first group of the passages have inner surface apertures located substantially in a first common plane. A second group of the passages have inner surface apertures located substantially in at least a second common plane substantially parallel to the first common plane. The second group has more passages than the first group. | 12-18-2008 |
| 20090020631 | GASEOUS FUEL INJECTOR USING LIQUID FUEL AS LUBRICANT AND PRESSURE-TRANSMITTING MEDIUM - A fuel injector injects high-pressure gaseous fuel directly into a cylinder of an engine. A small amount of liquid fuel is used in the injector to lubricate sliding portions of the fuel injector in addition to utilizing it as a medium for transmitting driving force. The fuel injector includes a nozzle member having injection holes at its elongated end and a needle slidably disposed in an elongated center hole of the nozzle member. The needle is driven by pressure of the liquid fuel introduced into a control chamber to open or close the injection holes. The pressure in the control chamber is controlled by a switching valve which is in turn driven by an actuator such as an electromagnetic or piezoelectric actuator. The liquid fuel is injected together with the high-pressure gaseous fuel after lubricating the sliding portions between the nozzle member and the needle. | 01-22-2009 |
| 20090032620 | METERING SERVOVALVE AND FUEL INJECTOR FOR AN INTERNAL COMBUSTION ENGINE - A metering servovalve for a fuel injector of an internal combustion engine has an electro-actuator and a fixed valve body, which defines a control chamber communicating with an inlet and with an outlet channel. The outlet channel has at least one calibrated restriction and exits through the lateral surface of an axial stem, on which a sleeve slides, in a substantially fluid-tight manner, to open/close the outlet channel and so vary the pressure in the control chamber. The outlet channel is closed by an end portion of the sleeve that is elastically deformable in a radially outward direction, under the thrust of the fuel pressure, to increase the diameter at which the seal against the valve body is formed, with respect to a non-deformed state, and to generate a radial unbalancing force on the sleeve upon opening when the outlet channel is closed. | 02-05-2009 |
| 20090032621 | METERING SERVOVALVE AND FUEL INJECTOR FOR AN INTERNAL COMBUSTION ENGINE - A fuel injector and servovalve for an internal combustion engine. In one embodiment, the fuel injector comprises a casing; a balanced metering servovalve in the casing that controls movement of an injection control rod along an axial cavity; said servovalve having; a valve body comprising a control chamber; an axial stem comprising a discharge channel having at least one radial segment that runs to a lateral surface of said axial stem; a calibrated inlet passage in communication with said control chamber; and an outlet passage in communication with said control chamber and the discharge channel; a sleeve having a shutter, said axial stem extending into said sleeve in a fluid tight manner and so that said sleeve that can axially slide along said axial stem between a closed position and an open position of said at least one radial segment, thereby controlling said movement of said injection control rod along said axial cavity; an electro-actuator having an armature that controls said axial sliding of said sleeve along said axial stem; an elastic member that exerts a force upon said armature that maintains said sleeve in said closed position, said electro-actuator being able to control said armature to overcome said force of said elastic member; and said armature being separate from said sleeve. | 02-05-2009 |
| 20090134245 | PIEZOELECTRIC ACTUATOR AND INJECTOR COMPRISING A PIEZOELECTRIC ACTUATOR FOR AN INTERNAL COMBUSTION ENGINE - A piezoelectric actuator and an injector for an internal combustion engine are proposed, the electromagnetic compatibility of which is significantly improved in comparison with conventional injectors. The actuator head and/or actuator foot is manufactured out of a ceramic material, thus reducing the capacitance of the electric capacitor that is formed between the electrical ground and the piezoelectric actuator. An advantage of the piezoelectric actuator according to the invention is that no additional components are required. The change from metallic materials to ceramic materials also increases the rigidity of the piezoelectric actuator since ceramic materials have a significantly higher modulus of elasticity than metals. | 05-28-2009 |
| 20090173810 | TWO-STAGE FUEL INJECTOR - This injector with two valves ( | 07-09-2009 |
| 20090179086 | FUEL INJECTOR WITH DIRECT NEEDLE CONTROL AND SERVO VALVE SUPPORT - The invention relates to an injector for injecting fuel into a combustion chamber of an internal combustion engine. The injector is actuated by an actuator and is connected to a fuel supply line via which fuel is supplied under system pressure. At least one injection opening can be opened or closed off by an injection valve member, which is activated by a control piston via a control chamber to which the control piston and a piston section of the injection valve member are exposed with respective pressure faces. The control piston is a valve piston of a control valve. The pressure face of the control piston and the pressure face of the piston section of the injection valve member are exposed to the control chamber at the same side. The control piston and the piston section of the injection valve member also enclose a further control chamber which is connected to a fuel return line when the control valve is open and to the fuel supply line when the control valve is closed. | 07-16-2009 |
| 20090212134 | FUEL INJECTOR - A common-rail fuel injector ( | 08-27-2009 |
| 20100001101 | NOZZLE MODULE FOR AN INJECTION VALVE - A nozzle module for an injection valve has a nozzle body with a recess with a wall, being operable to hydraulically couple the recess to a high pressure fluid circuit, a seal seat embodied on the wall, at least one nozzle needle arranged in an axially moveable fashion in the recess. The needle has a seat area with a sealing surface interacting with the seal seat to open and close the valve, respectively, and a supporting area, arranged radially outside and axially at a distance from the seat area and supporting the needle against the wall when the needle closes. The needle has at least one needle recess, which when the supporting area rests against the wall of the body recess, an area of the body recess facing axially away from the seat area is hydraulically coupled to an area of the body recess which axially faces the seat area. | 01-07-2010 |
| 20100078504 | High-pressure containment sleeve for nozzle assembly and fuel injector using same - A nozzle assembly for a fuel injector capable of withstanding high-pressures includes a nozzle chamber defined by a high-pressure containment sleeve, a tip component defining a nozzle outlet, and an injector stack component. A leakage path is defined between an injector body casing and an outer wall surface of the high-pressure containment sleeve and a needle valve member that opens and closes the nozzle outlet is out of contact with the high-pressure containment sleeve. The high-pressure containment sleeve has a hollow, cylindrical shape and has an inner wall exposed to fluid pressure inside the nozzle chamber that is free of stress concentrating surface features associated with heart shaped cavities in the prior art. | 04-01-2010 |
| 20100116910 | BALL VALVE WITH REDUCED EROSION BEHAVIOR - The invention relates to a ball valve for adjusting a flow of a fluid medium. The ball valve includes a valve seat and a rounded closing element, in particular a valve ball. Furthermore, the ball valve has an inlet with a choke valve and one diffuser arranged between the choke valve and the valve seat. The diffuser includes a constriction on the side facing the valve seat. | 05-13-2010 |
| 20100181392 | INJECTOR FOR A FUEL INJECTION SYSTEM - The invention relates to an injector for a fuel injection system of an internal combustion engine, particularly in a motor vehicle, with an injector body which has a pressure booster section and a needle section. At least one injection hole is provided in the needle section. A nozzle needle which has an adjustable stroke is disposed in the needle section for controlling an injection of fuel through the at least one injection hole. A pressure booster is provided for increasing a fuel injection pressure relative to a system pressure. For this purpose, the pressure booster has a double-diameter or stepped piston, a control rod, and a pressure booster bottom which together form the boundary of a coupling chamber. A coupling path extends into the control rod and connects the coupling chamber, over a valve device which is located outside or within the injector, to a high-pressure supply of fuel. | 07-22-2010 |
| 20100264239 | INJECTOR - An injector includes a nozzle body, a main body including a supply port on the outer peripheral surface of the main body and a high pressure passage, and a fuel pressure sensor on an outer peripheral surface of the main body to detect fuel pressure. The high pressure passage has a first passage extending from the supply port in a radial direction of the main body, and a second passage extending from a fuel downstream end portion of the first passage toward an injection hole in an insertion direction of the nozzle body. The supply port and the sensor are diametrically opposed to each other. The main body includes a sensor passage, which branches from the high pressure passage to extend from the fuel downstream end portion of the first passage in an imaginary extension of the first passage so that fuel flows into the sensor through the sensor passage. | 10-21-2010 |
| 20100282871 | FUEL INJECTION VALVE DEVICE - A fuel injection valve can be provided, with which temperature at needle valve seating position can be decreased and carburization of fuel and deposition of the carbide near the needle valve seating position can be prevented resulting in stable normal fuel injection control, and which is applicable to small and middle and also to large engines, particularly gas engines. The fuel injection valve is composed such that distance (A) from a seating face of the nozzle in the nozzle supporting body to a seating position of the needle valve in the nozzle is determined to be smaller than distance (B) from the nozzle seating face in the nozzle supporting body to the lower end of clearance between a nozzle insertion hole of the nozzle supporting body and a fitting part of the nozzle inserted into the nozzle insertion hole, thereby suppressing heat flow to the needle valve seating position. | 11-11-2010 |
| 20100301143 | FUEL INJECTION DEVICE - The invention has an object for improving response of a fuel injection device. A flow-in recessed portion and a flow-out recessed portion are formed at a press-contacting surface of a floating plate, which is movably accommodated in a pressure control chamber. A flow-in port and a flow-out port are formed at a pressure control surface of a valve body. The flow-in port is opened to the flow-in recessed portion, while the flow-out port is opened to the flow-out recessed portion. When the floating plate is moved upwardly and the press-contacting surface is brought into contact with the pressure control surface, the flow-in port is surely closed. | 12-02-2010 |
| 20110011954 | Fuel Injection Valve and Machining Method for Nozzle - A fuel injection valve with reduced adhesion of deposits to a fuel injecting portion and superior in durability is provided. Also provided is a method for machining multi-orifice type fuel injecting portions easily, less expensively, in good surface roughness, in high productivity, and with few variations in shape, accuracy and surface roughness, using inexpensive equipment. The surface roughness of fuel injecting portions comprising orifices and apertures is made Rz 2 μm or less. Apertures are formed by press working so as to each have a plastic-worked surface of Rz 0.2 μm or less in surface roughness and then orifices are formed in the bottoms of the apertures so as to have a plastic-worked surface of Rz 0.2 μm or less in surface roughness. Further, when abrasion resistance of the nozzle is required, the fuel injecting portions are finished to a surface roughness of Rz 2 μm by quenching. | 01-20-2011 |
| 20110057058 | INTEGRATED FUEL INJECTOR IGNITERS WITH CONDUCTIVE CABLE ASSEMBLIES - The present disclosure is directed to a fuel injector assembly including a valve and a cable assembly for actuating the valve. The cable can include a plurality of strands, and each strand can be an optical fiber, an electrical conductor, or a tensile member capable of withstanding a tensile stress caused when the valve actuator actuates the valve, or any combination thereof. The cable can also include a brush bearing with bristles extending from the cable to maintain the cable at least generally centered within a channel as the cable moves in the channel. The bristles can be electrically conductive and can convey a voltage to an electrode pair near the valve to ionize at least a portion of the fuel to urge the fuel from the injector through the valve. | 03-10-2011 |
| 20110114762 | FUEL INJECTOR HAVING A HIGH-PRESSURE INLET - The invention relates to a fuel injector for the operation of an internal combustion engine, having an injector body. An inlet bore of the injector body connects a conical pressure connection to a valve chamber for supplying highly pressurized fuel. The valve chamber is placed along a longitudinal center axis of the injector body and above a nozzle needle. According to the invention, the inlet bore further has a fan-shaped contour starting at the conical pressure connection along the extension thereof, the contour having a fan angle and a variable cross-section in the shape similar to an elongated hole. | 05-19-2011 |
| 20110168812 | FUEL INJECTOR WITH PISTON RESTORING OF A PRESSURE INTENSIFIER PISTON - The invention relates to a fuel injector for injecting fuel into a combustion chamber of an internal combustion engine, which fuel injector comprises an injection valve element, for opening and closing at least one injection opening and a pressure booster, by way of which fuel which is at system pressure is compressed to injection pressure. The pressure booster is actuated via a first control valve and the injection valve element is actuated via a second control valve. The pressure booster comprises a pressure booster piston which is assigned a spring element which is supported by way of one side on the injector housing and by way of the other side on the pressure booster piston. The pressure booster piston delimits a compression chamber, a differential pressure chamber and a control chamber. The control chamber is arranged at that end of the pressure booster piston which lies opposite the compression chamber, the spring element is received in the control chamber, and the spring element is supported on one side on the injector housing and on the other side on the pressure booster piston. | 07-14-2011 |
| 20110315793 | Fuel Injector Tip With Compressive Residual Stress - Steel rod stock is shaped into a fuel injector tip having a central axis and including a shank extending between a mating end and a nozzle end. An inner surface of the fuel injector tip includes a conical needle valve seat and defines a nozzle chamber and a sac on opposite sides of the needle valve seat. The mating end includes a injector stack surface and an injector body contact surface. After shaping the fuel injector tip, it is a case hardened to a hardness in excess of HRC 55. Next, the nozzle end is shaped, after the case hardening step, to include a plurality of nozzle surfaces that each define one of a plurality of nozzle outlets extending between the sac and the outer surface. The inner surface and the nozzle surfaces are then autofrettaged to induce compressive residual stress at the case hardened needle valve seat, the case hardened sac and at least a portion of the nozzle surfaces closest to the sac. | 12-29-2011 |
| 20120000994 | DEVICE FOR INJECTING FUEL - A device for injecting pressurized fuel includes an electrodynamic actuator having a movably situated coil, an outwardly opening needle which opens and closes a cross section on a valve seat, a connecting device which connects the needle to the movably situated coil, a pressure chamber which is situated at the needle upstream from the valve seat and contains pressurized fuel, a low-pressure chamber from which, fuel is dischargeable, and a gap seal which is provided at an outer peripheral region of the needle, the gap seal ( | 01-05-2012 |
| 20120000995 | FUEL INJECTOR - A fuel injector, in particular for the direct injection of fuel into the combustion chamber of a mixture-compressing, spark-ignited internal combustion engine, includes a functional part, which has at least one nozzle body, parts of an actuator, an axially movable valve closing body, which forms a sealing seat together with a valve seat surface, as well as a hydraulic extension part, which is fixedly and tightly connected to the functional part. The extension part is an interface between a connection-side inlet stub and the functional part. At least one of the frontal contact surfaces of inlet stub, functional part, and extension part, with which these components press against one another and are fixedly connected, is designed to be convexly curved. | 01-05-2012 |
| 20120056018 | FUEL INJECTION VALVE - A fuel injection valve | 03-08-2012 |
| 20120097768 | FUEL INJECTOR - A fuel injector for use in an internal combustion engine includes a valve member that is moveable within a bore of an injection nozzle so as to be engageable with a valve seat region to control fuel delivery through one or more nozzle outlets, an injector body housing an actuator that is operable to move the valve member within the bore, and defining an accumulator volume for storing high pressure fuel. The fuel injector includes a damping chamber in fluid communication with the accumulator volume through a fluid passage, the damping chamber serving to reduce pressure wave activity within the accumulator volume. | 04-26-2012 |
| 20120132729 | Multi-Layer Piezoelectric Element, and Injection Device and Fuel Injection System Incorporating the Multi-Layer Piezoelectric Element - A multi-layer piezoelectric element includes a stacked body configured so that piezoelectric layers and internal electrode layers are alternately laminated, and an external electrode composed of a sintered material of both electrically conductive particles and a glass, the external electrode which is bonded to a side surface of the stacked body and makes electrical connection with the internal electrode layers. The external electrode has a stacked body-side layer region containing glass as secondary constituent at its stacked body-facing side, and an exterior-side layer region containing glass as minor constituent at its exterior side. The glass of the exterior-side layer region is distributed along grain boundary of the conductive particles on an outermost surface of the exterior-side layer region. | 05-31-2012 |
| 20130075498 | Fuel Injectors with Intensified Fuel Storage and Methods of Operating an Engine Therewith - Fuel injectors with intensified fuel storage and methods of operating an engine therewith. At least one storage cavity is provided in the intensifier type fuel injector, with a check valve between the intensifier and the needle chamber and storage cavity preventing loss of injection pressure while the intensifier plunger cylinder is refilling with fuel. This provides very efficient injector operation, particularly at low engine loads, by eliminating the wasted energy of compressing, venting and recompressing fuel for injection. Various injector designs and methods of operating the same in an engine are disclosed. | 03-28-2013 |
| 20140001288 | Injection valve | 01-02-2014 |
| 20140070028 | Pressure Regulator for a Diesel Fuel Injection System - A pressure regulator for a diesel fuel injection system includes an inlet configured to be connected to a reservoir of the diesel fuel injection system of a diesel engine, an outlet configured to be connected to a low-pressure group, a controllable closing device configured to be driven by an actuator between a first state in which the inlet and the outlet are hermetically isolated and a second state in which the inlet is connected to the outlet, and a plurality of spaces arranged on a side of the closing device including the outlet. A pressure compensation duct is configured to connect at least two spaces of the plurality of spaces to each other. | 03-13-2014 |
| 20140077004 | ENGINE DEVICE - A problem exists that in the case that a prior injection (a pilot injection B or a previous injection C) before a main injection A is executed when an engine is driven at a low load, a defective ignition and a defective combustion tend to be caused, an amount of carbon monoxide (CO) in an exhaust gas becomes excessive, and the carbon monoxide is discharged as white smoke. An engine device is mounted to a working vehicle, and a common rail type fuel injection device which injects fuel to the engine at multiple stages during one combustion cycle. The common rail type fuel injection device does not execute the prior injections B and C coming before the main injection A in the case that a load applied to the engine is in a low load state in which a load is lower than that at a working time by the working vehicle. | 03-20-2014 |
| 20160138543 | Fuel Injector - A fuel injector for use in an internal combustion engine includes a valve member that is moveable within a bore of an injection nozzle so as to be engageable with a valve seat region to control fuel delivery through one or more nozzle outlets, an injector body housing an actuator that is operable to move the valve member within the bore, and defining an accumulator volume for storing high pressure fuel. The fuel injector includes a damping chamber in fluid communication with the accumulator volume through a fluid passage, the damping chamber serving to reduce pressure wave activity within the accumulator volume. | 05-19-2016 |
