EP1390614A1 - Magnetventil zur steuerung eines einspritzventils einer brennkraftmaschine - Google Patents
Magnetventil zur steuerung eines einspritzventils einer brennkraftmaschineInfo
- Publication number
- EP1390614A1 EP1390614A1 EP02729870A EP02729870A EP1390614A1 EP 1390614 A1 EP1390614 A1 EP 1390614A1 EP 02729870 A EP02729870 A EP 02729870A EP 02729870 A EP02729870 A EP 02729870A EP 1390614 A1 EP1390614 A1 EP 1390614A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- valve
- plate
- stop
- solenoid valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
- F02M63/0021—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of mobile armatures
- F02M63/0022—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of mobile armatures the armature and the valve being allowed to move relatively to each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
- F02M63/0042—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing combined with valve seats of the lift valve type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0043—Two-way valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0205—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
- F02M63/022—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine by acting on fuel control mechanism
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
- F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
- F02M2200/306—Fuel-injection apparatus having mechanical parts, the movement of which is damped using mechanical means
Definitions
- Solenoid valve for controlling an injection valve of an internal combustion engine
- the invention relates to a solenoid valve for controlling an injection valve of an internal combustion engine according to the preamble of claim 1.
- Such a solenoid valve is used to control the fuel pressure in the control pressure chamber of an injection valve, for example an injector of a common rail injection system.
- an injection valve for example an injector of a common rail injection system.
- the known solenoid valve has an electromagnet arranged in a housing part, a movable armature and a control valve member which is moved with the armature and acted upon by a closing spring in the closing direction and which cooperates with a valve seat of the solenoid valve and thus controls the fuel outflow from the control pressure chamber.
- a known disadvantage of such solenoid valves is the so-called armature bounce.
- the armature When the magnet is switched off, the armature, and with it the control valve member, is accelerated from the closing spring of the solenoid valve to the valve seat in order to close a fuel drain channel from the control pressure chamber.
- the impact of the control valve member on the valve seat results in an adverse swing and / or bounce of the control valve member on the valve seat, causing the Control of the injection process is impaired.
- the armature is therefore made in two parts with an anchor bolt and an anchor plate slidably mounted on the anchor bolt, so that the anchor plate moves against the tension force of a return spring when the control valve member impacts the valve seat.
- the return spring then conveys the anchor plate back to its defined starting position at a stop fixed on the anchor bolt. This ensures that when the electromagnet is switched on again, the armature plate is tightened from an always the same, defined, predetermined distance.
- the effective braked mass and thus the kinetic energy causing the bouncing of the armature hitting the valve seat are reduced in the known solenoid valves, but the armature plate acted upon by the spring force of the return spring can open after the solenoid valve closes swing the anchor bolt disadvantageously.
- the armature plate can hit the stop defined on the armature bolt and thereby briefly open the solenoid valve.
- FIG. 1 shows a section of the upper part of a fuel injection valve with a solenoid valve known from the prior art
- Fig. 4 shows the stroke of the anchor plate as a function of time for the solenoid valve according to the invention.
- FIG. 1 shows the upper part of a fuel injection valve known from the prior art, which is intended for use in a fuel injection system, in particular a common rail system for diesel fuel, which is equipped with a high-pressure fuel reservoir which is continuously supplied with high-pressure force by a high-pressure feed pump. material is supplied.
- the known fuel injection valve has a valve housing 4 with a longitudinal bore, in which a valve piston 6 is arranged, which acts with its one end, not shown in FIG. 1, on a valve needle arranged in a nozzle body.
- the valve needle is arranged in a pressure chamber, which is supplied with fuel under high pressure via a pressure bore.
- valve needle During an opening stroke movement of the valve piston 6, the valve needle is raised against the closing force of a spring by the high fuel pressure in the pressure chamber, which constantly acts on a pressure shoulder of the valve needle. The fuel is then injected into the combustion chamber of the internal combustion engine through an injection opening which is then connected to the pressure chamber.
- the valve needle By lowering the valve piston 6, the valve needle is Direction pressed into the valve seat of the injection valve and the injection process ends.
- the valve piston 6 is guided at its end facing away from the valve needle in a cylinder bore which is introduced into a valve piece 12 which is inserted into the valve housing 4.
- the end face of the valve piston 6 includes a control pressure chamber 14, which is connected via an inlet channel to a high-pressure fuel connection, not shown.
- the inlet channel is essentially made up of three parts.
- a bore leading radially through the wall of the valve piece 12, the inner walls of which form an inlet throttle 15 over part of its length, is continuously connected to an annular space 16 surrounding the valve piece 12 on the circumferential side, which annular space in turn is in permanent communication with the high-pressure fuel connection stands.
- the control pressure chamber 14 is exposed to the high fuel pressure prevailing in the high-pressure fuel reservoir via the inlet throttle 15.
- Coaxial to the valve piston 6 branches off from the control pressure chamber 14 a bore running in the valve piece 12, which forms a fuel outlet channel 17 provided with an outlet throttle 18, which opens into a relief chamber 19, which is connected to a fuel low-pressure connection, not shown in FIG. 1, which in turn is connected to a fuel return of the injection valve.
- the fuel drain channel 17 emerges from the valve piece 12 in the region of a conically countersunk part 21 of the outer end face of the valve piece 12.
- the valve piece 12 is clamped together with an adjusting disk 38 and the flange 32 of a sliding piece 34 in the valve housing 4 by means of a screw member 23 ,
- a valve seat 24 is formed in the conical part 21, with which a control valve member 25 of a solenoid valve 30 controlling the injection valve interacts.
- the control valve member 25 is coupled to a two-part armature in the form of an armature bolt 27 and an armature plate 28, which armature is connected to an electromagnet 29 of the solenoid valve 30 interacts.
- the solenoid valve 30 further comprises a housing part 60 which accommodates the electromagnet 29 and which is firmly connected to the valve housing 4 via screwable connecting means 7.
- the anchor plate 28 is dynamically slidably supported on the anchor bolt 27 under the action of its inertial mass against the biasing force of a return spring 35 and is pressed by this return spring in the idle state against a stop 26 fixed on the anchor bolt, which in the form of a Anchor bolt pushed on sickle disc is formed.
- the return spring 35 is supported on the flange 32 of the slide 34, which guides the anchor bolt 27 in a through opening.
- the armature bolt 27 and with it the armature disk 28 and the control valve member 25 coupled to the armature bolt 27 are constantly acted upon in the closing direction by a locking spring 31 which is fixed to the housing, so that the control valve member 25 normally abuts the valve seat 24 in the closed position.
- the armature plate 28 and with it the armature bolt 27 is attracted by the electromagnet and the drain channel 17 is opened toward the relief chamber 19.
- the armature bolt 27 has at the end facing away from the electromagnet 29 an annular shoulder 33 which strikes the slide 34 when the electromagnet is excited and thus limits the opening stroke of the control valve member 25.
- the adjusting disk 38 is used to set the opening stroke.
- the opening and closing of the injection valve is controlled by the solenoid valve 30 as described below.
- the anchor bolt 27 is constantly acted upon by the closing spring 31 in the closing direction, so that the control valve member 25 rests on the valve seat 24 in the closed position when the electromagnet is not energized and the control pressure chamber 14 is closed to the relief side 19, so that there it is via the inlet channel the high pressure builds up very quickly, which is also present in the high-pressure fuel accumulator.
- the pressure in the control pressure chamber 14 generates a closing force on the valve piston 6 and the associated valve needle, which is greater than the forces acting in the opening direction due to the high pressure.
- control pressure chamber 14 If the control pressure chamber 14 is opened towards the relief side 19 by opening the solenoid valve, the pressure in the small volume of the control pressure chamber 14 decreases very quickly, since it is decoupled from the high pressure side via the inlet throttle 15. As a result, the force acting on the valve needle in the opening direction outweighs the high fuel pressure applied to the valve needle, so that the valve needle moves upward and the at least one injection opening is opened for injection. However, if the solenoid valve 30 closes the fuel outlet channel 17, the pressure in the pressure chamber 14 can be built up again by the fuel flowing in via the inlet channel 15, so that the original closing force is applied and the valve needle of the fuel injection valve closes.
- the closing spring 31 suddenly presses the armature pin 27 with the control valve member 25 against the valve seat 24.
- a disadvantageous bouncing off or swinging of the control valve member arises in that the impact of the armature pin on the valve seat causes the same to deform, which acts as an energy store, whereby a portion of the energy is in turn transferred to the control valve member 25, which then bounces off the valve seat 24 together with the anchor bolt.
- the known solenoid valve shown in FIG. 1 therefore uses a two-part armature with an armature plate 28 decoupled from the armature bolt 27. In this way, the mass impinging on the valve seat 24 as a whole can be reduced, but the armature plate 28 can oscillate in a disadvantageous manner.
- an overstroke stop 37 is provided in the known solenoid valve, which is formed by an end section, facing the armature plate, of a section of the slider 34 designed as a guide sleeve.
- the over Stroke stop 37 limits the maximum Uberhubweg by which the anchor plate 28 after the impact of the control valve member 25 on the valve seat 24 along the anchor bolt 27 starting from the stop fixed on the anchor bolt 27
- FIG. 2 shows the stroke profile of the anchor plate as a function of the time when the solenoid valve is opened.
- the solenoid valve closes, the armature plate 28 initially moves with the armature bolt in a first time interval I.
- the anchor plate 28 then moves in the time interval I by the overtravel distance until it hits the overtravel stop 37 at a maximum overtravel distance h.2 of, for example, about 20 micrometers and is braked there.
- time interval II the anchor plate is moved back to the sickle disk 26 by the return spring 35.
- time interval III the anchor bolt and the control valve member are lifted off the valve seat by the anchor plate. The solenoid valve therefore opens briefly.
- the anchor plate swings back, the control valve member hits the valve seat again at the beginning of time interval IV.
- the vibration process of the anchor plate means that the solenoid valve must not be activated again in time interval III, since the solenoid valve opens briefly in this time interval.
- the solenoid valve may therefore only be actuated by applying voltage to the electromagnet, either only beforehand in time interval II or later in time interval IV.
- FIG. 3 shows a detail from a cross-sectional illustration of the solenoid valve according to the invention.
- the solenoid valve 30 according to the invention differs from that in Fig. 1 shown known solenoid valve in that no return spring is provided on the solenoid valve.
- the electromagnet 29 is switched off, the armature with the armature plate 28, armature bolt 27 and control valve member 25 is moved by the closing spring 31 toward the valve seat 24.
- the anchor plate 28 continues to move due to its inert mass on the now fixed anchor bolt. This movement of the anchor plate 28 is now only subject to the laws of inertia, gravity, friction and the hydrodynamics of the fuel and is free of any action by a resilient elastic spring force.
- FIG. 4 The resulting movement of the anchor plate 28 is shown in FIG. 4.
- the anchor plate 28 moves in the time interval I first with the anchor bolt by the opening stroke h1 and then after the control valve member has hit the valve seat with the fixed anchor bolt by the excess stroke h.2 to the excess stroke 37
- the anchor plate 28 remains there.
- the circular surface 39 of the connecting piece 40 which is formed on the anchor plate 28 and is pushed over the anchor bolt 27, forms a hydraulic damping space, through which the impact of the anchor plate 28 on the Uberhubanschlag is damped.
- the solenoid valve according to the invention can therefore be activated again at any time as soon as the armature plate has reached its position on the overstroke stop.
- the armature plate 28 When a voltage is applied to the electromagnet when the solenoid valve is opened, the armature plate 28 is conveyed very quickly by the distance h2 to the stop 26 fixed on the armature bolt due to the magnetic force then acting. The time delay until the anchor plate reaches the stop 26 is negligible. This requires, that the maximum overtravel distance h2 is not too large. The maximum overtravel distance by which the armature plate 28 can move after the control valve member 25 strikes the valve seat 24 when the solenoid valve closes along the armature bolt 27, starting from the stop 26 fixed on the armature bolt, until it strikes the overtravel stop 37 than 100 microns and preferably less than 30 microns.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10123171A DE10123171A1 (de) | 2001-05-12 | 2001-05-12 | Magnetventil zur Steuerung eines Einspritzventils einer Brennkraftmaschine |
DE10123171 | 2001-05-12 | ||
PCT/DE2002/001418 WO2002092991A1 (de) | 2001-05-12 | 2002-04-17 | Magnetventil zur steuerung eines einspritzventils einer brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1390614A1 true EP1390614A1 (de) | 2004-02-25 |
EP1390614B1 EP1390614B1 (de) | 2004-10-06 |
Family
ID=7684568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02729870A Expired - Lifetime EP1390614B1 (de) | 2001-05-12 | 2002-04-17 | Magnetventil zur steuerung eines einspritzventils einer brennkraftmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US6997432B2 (de) |
EP (1) | EP1390614B1 (de) |
JP (1) | JP4058349B2 (de) |
DE (2) | DE10123171A1 (de) |
ES (1) | ES2229143T3 (de) |
WO (1) | WO2002092991A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7156368B2 (en) * | 2004-04-14 | 2007-01-02 | Cummins Inc. | Solenoid actuated flow controller valve |
US20060138374A1 (en) * | 2004-04-14 | 2006-06-29 | Lucas Michael A | Solenoid actuated flow control valve including adjustable spacer |
DE102005053115A1 (de) * | 2005-11-08 | 2007-05-10 | Robert Bosch Gmbh | Optimierte Ankergruppenführung für Magnetventile |
DE102005058302A1 (de) * | 2005-12-07 | 2007-06-14 | Robert Bosch Gmbh | Verformungsoptimierte Ankerführung für Magnetventile |
DE102006041977A1 (de) | 2006-09-07 | 2008-03-27 | Robert Bosch Gmbh | Injektor zum Einspritzen von Kraftstoff |
US20080081632A1 (en) * | 2006-09-29 | 2008-04-03 | Symbol Technologies, Inc. | Methods and apparatus for defining, storing, and identifying key performance indicators associated with an RF network |
EP1918568B1 (de) * | 2006-10-24 | 2009-02-25 | C.R.F. Societa Consortile per Azioni | Magnetdosierventil für ein Brennstoffeinspritzventil |
DE102007060396A1 (de) | 2007-12-03 | 2009-06-04 | Robert Bosch Gmbh | Mechanische Löschung von Schließprellern bei Einspritzdüsen |
US8689772B2 (en) * | 2011-05-19 | 2014-04-08 | Caterpillar Inc. | Fuel injector with telescoping armature overtravel feature |
US9359985B2 (en) | 2014-09-04 | 2016-06-07 | Caterpillar Inc. | Fluid injector actuator with resilient armature overtravel feature |
US10180106B2 (en) | 2016-05-17 | 2019-01-15 | Hamilton Sundstrand Corporation | Solenoids for gas turbine engine bleed valves |
US20220218086A1 (en) * | 2019-05-22 | 2022-07-14 | Atech S.R.L. | Tamper-proof bag and security system therefor |
US11603815B1 (en) * | 2021-11-04 | 2023-03-14 | Standard Motor Products, Inc. | Modular armature-needle assembly for fuel injectors |
DE102022202027A1 (de) * | 2022-02-28 | 2023-08-31 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Ansteuerung eines elektromagnetisch ansteuerbaren Gasventils, Steuergerät |
JP2024128777A (ja) * | 2023-03-10 | 2024-09-24 | 三菱重工エンジン&ターボチャージャ株式会社 | 電磁式アクチュエータ及び燃料噴射装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT227711Y1 (it) * | 1992-12-29 | 1997-12-15 | Elasis Sistema Ricerca Fiat | Valvola di dosaggio a comando elettromagnetico per un iniettore di combustibile |
US6068010A (en) * | 1995-06-09 | 2000-05-30 | Marotta Scientific Controls, Inc. | Microvalve and microthruster for satellites and methods of making and using the same |
DE19650865A1 (de) * | 1996-12-07 | 1998-06-10 | Bosch Gmbh Robert | Magnetventil |
IT239878Y1 (it) * | 1996-12-23 | 2001-03-13 | Elasis Sistema Ricerca Fiat | Perfezionamenti ad una valvola di dosaggio a comando elettromagneticoper un iniettore di combustibile. |
DE19708104A1 (de) | 1997-02-28 | 1998-09-03 | Bosch Gmbh Robert | Magnetventil |
DE19820341C2 (de) * | 1998-05-07 | 2000-04-06 | Daimler Chrysler Ag | Betätigungsvorrichtung für eine Hochdruck-Einspritzdüse für flüssige Einspritzmedien |
DE19832826C2 (de) | 1998-07-21 | 2000-08-17 | Bosch Gmbh Robert | Montageverfahren für Kraftstoff-Einspritzventil und Vorsteuerventil sowie Kraftstoff-Einspritzventil |
UA67804C2 (uk) * | 1998-10-02 | 2004-07-15 | Роналд Нортедж | Клапан |
DE29905883U1 (de) * | 1999-03-31 | 1999-06-17 | Festo AG & Co, 73734 Esslingen | Elektromagnetische Antriebsvorrichtung |
DE10131201A1 (de) * | 2001-06-28 | 2003-01-16 | Bosch Gmbh Robert | Magnetventil zur Steuerung eines Einspritzventils einer Brennkraftmaschine |
-
2001
- 2001-05-12 DE DE10123171A patent/DE10123171A1/de not_active Ceased
-
2002
- 2002-04-17 ES ES02729870T patent/ES2229143T3/es not_active Expired - Lifetime
- 2002-04-17 US US10/332,729 patent/US6997432B2/en not_active Expired - Fee Related
- 2002-04-17 DE DE50201241T patent/DE50201241D1/de not_active Expired - Lifetime
- 2002-04-17 JP JP2002590232A patent/JP4058349B2/ja not_active Expired - Fee Related
- 2002-04-17 EP EP02729870A patent/EP1390614B1/de not_active Expired - Lifetime
- 2002-04-17 WO PCT/DE2002/001418 patent/WO2002092991A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO02092991A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2004519609A (ja) | 2004-07-02 |
ES2229143T3 (es) | 2005-04-16 |
DE50201241D1 (de) | 2004-11-11 |
DE10123171A1 (de) | 2002-11-14 |
WO2002092991A1 (de) | 2002-11-21 |
EP1390614B1 (de) | 2004-10-06 |
US6997432B2 (en) | 2006-02-14 |
US20040026644A1 (en) | 2004-02-12 |
JP4058349B2 (ja) | 2008-03-05 |
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