EP2004983B1 - Kraftstoffinjektor - Google Patents

Kraftstoffinjektor Download PDF

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Publication number
EP2004983B1
EP2004983B1 EP07704610A EP07704610A EP2004983B1 EP 2004983 B1 EP2004983 B1 EP 2004983B1 EP 07704610 A EP07704610 A EP 07704610A EP 07704610 A EP07704610 A EP 07704610A EP 2004983 B1 EP2004983 B1 EP 2004983B1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
chamber
fuel injector
pressure
fuel
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.)
Not-in-force
Application number
EP07704610A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2004983A1 (de
Inventor
Patrick Mattes
Michael Mennicken
Hans-Christoph Magel
Friedrich Boecking
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2004983A1 publication Critical patent/EP2004983A1/de
Application granted granted Critical
Publication of EP2004983B1 publication Critical patent/EP2004983B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/167—Means for compensating clearance or thermal expansion
    • 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
    • F02M63/0057—Means for avoiding fuel contact with valve actuator, e.g. isolating actuators by using bellows or diaphragms
    • 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
    • F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
    • F02M2200/315—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements for damping fuel pressure fluctuations
    • 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
    • F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator
    • 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
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • 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
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • F02M2200/708—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with hydraulic chambers formed by a movable sleeve
    • 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
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8046—Fuel injection apparatus manufacture, repair or assembly the manufacture involving injection moulding, e.g. of plastic or metal
    • 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
    • F02M2200/90—Selection of particular materials
    • F02M2200/9015—Elastomeric or plastic materials
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/001—Control chambers formed by movable sleeves
    • 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
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails

Definitions

  • the invention relates to a fuel injector according to the preamble of claim 1.
  • a fuel injector with a directly controlled nozzle needle opening outward in gasoline injection applications is off DE 199 63 568 A1 known.
  • the fuel injector in addition to the nozzle needle to a coupler piston which is drive-coupled with a magnetic actuator.
  • the movement between the coupler piston and the nozzle needle is transmitted to the Hubübera via a hydraulic coupler.
  • Another fuel injector with a directly controlled nozzle needle is off WO 2006/008200 A1 known.
  • the fuel injector to a nozzle needle and a coupler piston, wherein the nozzle needle is exposed to a rear pressure surface of a control chamber and the coupler piston with a pressure surface a coupler space.
  • a hydraulic connection is formed in order to transmit the pressure differences from the coupler chamber to the control chamber.
  • the coupler piston is in this case driven by a piezoelectric actuator, wherein the opening of the nozzle needle is effected by a pulling Aktorhub.
  • the object of the invention is to provide a fuel injector according to the preamble of claim 1, which is inexpensive to produce.
  • the object is achieved by a fuel injector with the characterizing features of claim 1. Characterized in that the combustion chamber remote end of the coupler piston limits a compensating volume, which communicates with a storage volume in which the combustion chamber near the end of the coupler piston is arranged, it is achieved that the control piston is completely pressure-balanced.
  • a preferred embodiment of the fuel injector is characterized in that the partial combustion chamber remote from the combustion chamber is delimited by a spring-biased sleeve, which is guided on the end of the coupler piston close to the combustion chamber and bears against a throttle plate with a biting edge.
  • the spring biasing force is sufficiently small and is preferably between 10 and 20 Newtons.
  • a further preferred exemplary embodiment of the fuel injector is characterized in that the throttle plate has a through hole which connects the partial combustion chamber remote from the combustion chamber to a partial control chamber close to the combustion chamber, which is delimited by the end of the nozzle needle remote from the combustion chamber. Through the through hole, a pressure reduction is transferred from the combustion chamber remote to the partial combustion chamber near the combustion chamber.
  • Another preferred exemplary embodiment of the fuel injector is characterized in that the end of the coupler piston close to the combustion chamber has a larger diameter than the end of the nozzle needle remote from the combustion chamber.
  • the combustion chamber near End of the coupler piston preferably has a diameter of about 8 mm.
  • the combustion chamber remote end of the nozzle needle preferably has a diameter of about 3.5 mm.
  • a further preferred embodiment of the fuel injector is characterized in that the coupler piston is guided by a coupler piston guide portion which connects the storage volume with a Magnetaktorfactraum in which the magnetic actuator is accommodated.
  • the diameter of the coupler piston guide portion is selected to minimize the leakage from the storage volume into the solenoid actuator housing space.
  • a further preferred embodiment of the fuel injector is characterized in that the magnet actuator receiving space is in communication with a pressure relief space. The leakage occurring at the coupler piston guide portion is discharged into the pressure relief space.
  • the fuel injector described in the previous sections allows multiple injection while optimizing overall hydraulic efficiency.
  • the fuel injector comprises an integrated damping volume or storage volume.
  • the fuel injector according to the invention enables the avoidance of leakage losses or control quantities.
  • An economically producible direct-acting fuel injector with magnetic actuator is provided. By integrating the magnetic actuator in a holding body of the injector, the length of the fuel injector can be reduced.
  • the associated operating principle allows an optimization of the overall hydraulic efficiency, which allows the use of smaller high-pressure pumps. Since the number of injections or control quantities is no longer contained in the total quantity balance of the system, higher applicative degrees of freedom can be achieved. By avoiding a hydraulic reaction (Ab Kunststoffenfin) on the magnetic actuator, the performance of the injector can be improved. In particular, the representation of a cost-effective system by eliminating a rail and a pressure control valve is made possible, which is achieved by a targeted leakage of pressure reduction.
  • control chamber is bounded by a control chamber limiting sleeve, which under sealing effect the combustion chamber remote end of the nozzle needle is guided.
  • the control room which is also referred to as a coupling room, may also include a plurality of sub-coupling spaces, which communicate with each other. By using a throttle between the sub-coupling spaces, the opening characteristic of the nozzle needle can be further optimized. By damping the opening speed, it is thus possible to achieve an optimized minimum quantity capability and an advantageous injection rate profile.
  • a further preferred embodiment of the fuel injector is characterized in that the magnetic actuator is arranged in an actuator chamber, which is acted upon by high-pressure fuel.
  • the actuator room also serves as a damping and storage volume.
  • a further preferred embodiment of the fuel injector is characterized in that the actuator chamber communicates with the control chamber.
  • the connection may be realized by respective coupler gaps provided, for example, between the coupler piston and the injector housing.
  • the nozzle needle has a double seat.
  • the nozzle needle then has a plurality of flow channels, which allow a central fuel supply to the needle tip.
  • the injection holes are preferably sealed by two sealing seats of the nozzle needle.
  • the two Seal seats open at the same time, which can have a relatively large diameter, without generating large needle forces.
  • a Entdrosselung the nozzle is achieved with a small nozzle needle, for example, at 50 microns.
  • a fuel injector with an injector 81 is shown in longitudinal section.
  • the injector housing 81 comprises a nozzle body 82, with its lower free end 89 in a Combustion chamber of an internal combustion engine protrudes. With its upper end face remote from the combustion chamber, the nozzle body 82 is braced against a holding body 85 with the interposition of a throttle plate 83 with the aid of a clamping nut 84.
  • a nozzle needle 88 is reciprocally received, which opens or closes depending on the pressure in a control chamber at least one injection opening at the end 89 of the nozzle body 82.
  • the control chamber 90 comprises a partial combustion chamber 91 close to the combustion chamber, which is delimited in the axial direction by the combustion chamber distal end of the nozzle needle 88 and the throttle plate 83. In the radial direction of the combustion chamber near the partial control chamber 91 is bounded by a spring-biased sleeve 95, which rests with a biting edge close to the throttle plate.
  • the partial combustion chamber 91 close to the combustion chamber communicates via a through-hole 93, which extends through the throttle plate 83, with a partial control chamber 92 remote from the combustion chamber.
  • the combustion chamber remote sub-control chamber 92 is limited in the axial direction, that is, in the direction of a longitudinal axis 86 of the fuel injector of the throttle plate 83 and the combustion chamber near the end of a coupler piston 102. In the radial direction, the partial combustion chamber 92 remote from the combustion chamber is delimited by a spring-biased sleeve 108, which rests against the throttle plate 83 with a biting edge.
  • the throttle plate 83 has radially outside the through-hole 93 connecting channels 97, 98, which has an annular space 96, which in the nozzle body 82nd is provided radially outside of the nozzle needle 88, connect to a storage volume 100 which is provided in the holding body 85 radially outside of the coupler piston 102.
  • the coupler piston 102 has a combustion piston near coupler piston portion 103 with an outer diameter 106 of about 8 mm.
  • the combustion chamber near the coupler piston portion 103 is integrally connected to a combustion chamber remote coupler piston portion 104 having an outer diameter 105 of 3.5 mm.
  • the sleeve 108 is guided at the end of the combustion chamber near the combustion chamber near coupler piston portion 103.
  • the sleeve 95 is guided at the combustion chamber distal end of the nozzle needle 88, which has an outer diameter 107 of 3.5 mm.
  • the outer diameter 107 of the combustion chamber distal end of the nozzle needle 88 is thus equal to the outer diameter 105 of the combustion chamber remote coupler piston portion 104.
  • the sleeve 108 is biased by a helical compression spring 109 which is clamped between the sleeve 108 and a collar 110 which is attached to the combustion chamber near coupler piston portion 103 ,
  • the coupler piston 102 is guided with its combustion chamber remote coupler piston portion 104 in a through hole 112 which is provided in the holding body 85 and is also referred to as Kopplerkolben arrangementsabites.
  • the through-hole 112 connects the storage volume 100 to a solenoid actuator accommodating space 115.
  • a magnetic actuator 120 Disposed in the solenoid actuator accommodating space 115 is a magnetic actuator 120 including an armature 121 fixed to the coupler piston portion 104 remote from the combustion space.
  • the anchor 104 is biased by a spring 122 toward the combustion chamber.
  • the spring 122 is clamped between the armature 121 and the combustion chamber distal end of the holding body 85.
  • a magnet or a magnetic coil 124 is disposed in the magnet actuator receiving space 115 within the holding body 85.
  • the solenoid coil 124 When the solenoid coil 124 is energized, the armature 121 is attracted toward the solenoid coil 124.
  • the associated armature stroke is designated 140 and is 30 microns.
  • connection 125 serves to dissipate leakage occurring at the high pressure passage of the combustion chamber remote coupler piston portion 104 through the through hole 112 between the high pressure accumulator volume 100 and the low pressure solenoid actuator accommodating space 115.
  • the combustion chamber remote end of the remote Kopplerkolbenabitess 104 is guided in a blind hole 128 in the combustion chamber distal end of the holding body 85 and bounded with its front side a compensation volume 130.
  • the compensation volume 130 is connected via a high-pressure connection line 132 with a high-pressure fuel source in connection, which is indicated by an arrow 134.
  • a high-pressure line 136 in which a throttle 138 is provided, the high-pressure fuel source 134 and the high-pressure fuel line 132 communicate with the storage volume 100.
  • the magnetic actuator 120 which is also referred to as a magnetic actuator, can only produce smaller forces in the order of 50 to 100 Newton. In contrast, the ability of the magnetic actuator 120 to realize larger travel, which has an advantageous effect on the size of the fuel injector.
  • the area ratio between the combustion chamber near the coupler piston portion 103 and the combustion chamber remote end of the nozzle needle 88 is selected so that with the magnetic actuator 120, a needle stroke of 140 to 240 microns can be achieved.
  • a needle stroke of 180 microns can be achieved.
  • the injection process is initiated by energizing the solenoid coil 124. Proportional to the stroke of the armature 121, the pressure in the control chamber 90 is lowered, so that the nozzle needle 88 lifts after falling below the opening pressure from the seat.
  • the coupler piston 102 is completely pressure-balanced in itself. To ensure a safe closing, the closing operation takes place after switching off the solenoid 124 by the spring 122 attached to the armature 121.
  • the biasing force of the spring 122 is between 50 and 100 Newton, preferably between 70 and 90 Newton.
  • the throttle 138 in the high pressure line 136 serves to reduce the high pressure in the storage volume 100 with respect to the equalization volume 130.
  • the biasing force of the spring 109 is preferably between 10 and 20 Newtons.
  • the solenoid actuator receiving space 115 may be subjected to low pressure, as indicated by the angled arrow 125. However, the solenoid actuator receiving space 115 may also be subjected to high pressure.
  • low pressure creates a permanent leakage at the high pressure passages of the combustion chamber remote coupler piston portion 104 in the holding body 85.
  • diameter at the high pressure passages that is, the through hole 112 and the blind hole 128 in the holding body 85 can achieve a desired mass balance in the overall system are, in particular, since in the illustrated Injektoriere no tax amounts incurred.
  • With permanent leakage it is possible to reduce the pressure during overrun of the vehicle.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)
EP07704610A 2006-04-04 2007-02-16 Kraftstoffinjektor Not-in-force EP2004983B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006015744 2006-04-04
DE102007002758A DE102007002758A1 (de) 2006-04-04 2007-01-18 Kraftstoffinjektor
PCT/EP2007/051487 WO2007115853A1 (de) 2006-04-04 2007-02-16 Kraftstoffinjektor

Publications (2)

Publication Number Publication Date
EP2004983A1 EP2004983A1 (de) 2008-12-24
EP2004983B1 true EP2004983B1 (de) 2011-07-27

Family

ID=37898527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07704610A Not-in-force EP2004983B1 (de) 2006-04-04 2007-02-16 Kraftstoffinjektor

Country Status (7)

Country Link
US (1) US20090108093A1 (ja)
EP (1) EP2004983B1 (ja)
JP (1) JP2009532622A (ja)
CN (1) CN101415934B (ja)
AT (1) ATE518058T1 (ja)
DE (1) DE102007002758A1 (ja)
WO (1) WO2007115853A1 (ja)

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DE102006051583A1 (de) * 2006-11-02 2008-05-08 Robert Bosch Gmbh Kraftstoffinjektor mit Speichervolumensegment
DE102007052204A1 (de) * 2007-10-30 2009-05-07 Robert Bosch Gmbh Spulenkontaktierung
DE102008002153B4 (de) * 2008-06-02 2016-02-18 Robert Bosch Gmbh Kraftstoff-Injektor
EP2246552A1 (en) * 2009-04-22 2010-11-03 Delphi Technologies Holding S.à.r.l. Fuel injector
DE102009047560A1 (de) * 2009-12-07 2011-06-09 Robert Bosch Gmbh Kraftstoffinjektor
DE102009047559A1 (de) * 2009-12-07 2011-06-09 Robert Bosch Gmbh Kraftstoffinjektor
DE102010002646A1 (de) 2010-03-08 2011-09-08 Robert Bosch Gmbh Kraftstoffinjektor
DE102010002845A1 (de) * 2010-03-15 2011-09-15 Robert Bosch Gmbh Kraftstoff-Injektor
DE102010040323A1 (de) 2010-09-07 2012-03-08 Robert Bosch Gmbh Kraftstoffinjektor
DE102010042688A1 (de) * 2010-10-20 2012-04-26 Robert Bosch Gmbh Kraftstoffinjektor
DE102010044205A1 (de) * 2010-11-22 2012-05-24 Robert Bosch Gmbh Kraftstoffinjektor
DE102011002422A1 (de) * 2011-01-04 2012-07-05 Robert Bosch Gmbh Einspritzventil zum Einspritzen eines Fluids
DE102011076663A1 (de) * 2011-05-30 2012-12-06 Robert Bosch Gmbh Kraftstoffinjektor
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DE102012208075A1 (de) * 2012-05-15 2013-11-21 Man Diesel & Turbo Se Injektor für eine Kraftstoffversorgungsanlage einer Brennkraftmaschine sowie Kraftstoffversorgungsanlage
EP2912300B1 (en) 2012-10-25 2018-05-30 Picospray, Inc. Fuel injection system
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DE102012222076A1 (de) 2012-12-03 2014-06-05 Robert Bosch Gmbh Kraftstoffinjektor mit Magnetaktor
DE102013218934A1 (de) 2013-09-20 2015-03-26 Robert Bosch Gmbh Magnetaktor zur Betätigung von Kraftstoffinjektoren, Kraftstoffinjektor
DE102013221536A1 (de) 2013-10-23 2015-04-23 Robert Bosch Gmbh Kraftstoffinjektor
DE102013221532A1 (de) 2013-10-23 2015-04-23 Robert Bosch Gmbh Kraftstoffinjektor
DE102013222563A1 (de) 2013-11-06 2015-05-07 Robert Bosch Gmbh Kraftstoffinjektor
DE102013224090A1 (de) 2013-11-26 2015-05-28 Robert Bosch Gmbh Kraftstoffinjektor
DE102013224960A1 (de) 2013-12-05 2015-06-11 Robert Bosch Gmbh Kraftstoffinjektor
DE102013225096A1 (de) 2013-12-06 2015-06-11 Robert Bosch Gmbh Kraftstoffinjektor, Verfahren zum Betreiben eines Kraftstoffinjektors
DE102013226776A1 (de) 2013-12-19 2015-06-25 Robert Bosch Gmbh Kraftstoffinjektor
US10197025B2 (en) 2016-05-12 2019-02-05 Briggs & Stratton Corporation Fuel delivery injector
CN106014729B (zh) * 2016-05-23 2018-08-07 中国第一汽车股份有限公司无锡油泵油嘴研究所 用于提高共轨喷油器响应性能的结构
CN109790806B (zh) 2016-07-27 2021-05-25 布里格斯斯特拉顿有限责任公司 往复式泵喷射器
US10947940B2 (en) 2017-03-28 2021-03-16 Briggs & Stratton, Llc Fuel delivery system
WO2020077181A1 (en) 2018-10-12 2020-04-16 Briggs & Stratton Corporation Electronic fuel injection module

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Also Published As

Publication number Publication date
WO2007115853A1 (de) 2007-10-18
CN101415934A (zh) 2009-04-22
JP2009532622A (ja) 2009-09-10
CN101415934B (zh) 2012-07-11
EP2004983A1 (de) 2008-12-24
US20090108093A1 (en) 2009-04-30
ATE518058T1 (de) 2011-08-15
DE102007002758A1 (de) 2007-10-11

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