EP2385238A2 - Injecteur haute pression - Google Patents

Injecteur haute pression Download PDF

Info

Publication number
EP2385238A2
EP2385238A2 EP11003160A EP11003160A EP2385238A2 EP 2385238 A2 EP2385238 A2 EP 2385238A2 EP 11003160 A EP11003160 A EP 11003160A EP 11003160 A EP11003160 A EP 11003160A EP 2385238 A2 EP2385238 A2 EP 2385238A2
Authority
EP
European Patent Office
Prior art keywords
pressure
injector
housing
advantageously
unit
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.)
Withdrawn
Application number
EP11003160A
Other languages
German (de)
English (en)
Other versions
EP2385238A3 (fr
Inventor
Richard Pirkl
Edgar Dr. Bignion
Wolfram Klemp
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.)
Liebherr Machines Bulle SA
Original Assignee
Liebherr Machines Bulle SA
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 Liebherr Machines Bulle SA filed Critical Liebherr Machines Bulle SA
Publication of EP2385238A2 publication Critical patent/EP2385238A2/fr
Publication of EP2385238A3 publication Critical patent/EP2385238A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/002—Arrangement of leakage or drain conduits in or from injectors
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/004—Joints; Sealings
    • F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails
    • 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
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/494—Fluidic or fluid actuated device making

Definitions

  • the present invention relates to a high-pressure injector with an injector unit, a drive unit for driving the injector unit and a high-pressure connection.
  • the high-pressure injector may further comprise a high-pressure storage unit for supplying the injector unit with fuel.
  • each high-pressure injector comprises a high-pressure storage unit to which the injector unit is fastened frontally via a union nut.
  • the drive unit for driving the injector unit is integrated into the high-pressure storage unit.
  • the Hochbuchinjektor therefore has a relatively complicated construction and is therefore expensive to manufacture.
  • the present invention is therefore intended to provide a Hochdruckinjektor available, which is simple in construction and can be produced inexpensively.
  • the high-pressure injector comprises an injector unit, a drive unit for driving the injector unit and a high-pressure connection.
  • the high-pressure injector further comprises a high-pressure storage unit for supplying the injector unit with fuel.
  • the high-pressure injector has a housing in which a plurality of assemblies are arranged one behind the other in the longitudinal direction of the injector, the housing completely enclosing at least one first assembly, in particular the drive unit and / or the high-pressure storage unit. This results in a particularly simple construction of the high-pressure injector according to the invention.
  • the assemblies arranged within the housing have fuel-carrying, high-pressure regions closed towards the housing, so that the housing serves as a second shell for the fuel-carrying regions of the assemblies.
  • the housing for mechanical connection of the assemblies which are arranged one behind the other in the longitudinal direction of the injector serve.
  • the assemblies are pressed together over the housing.
  • the housing in this case connects at least three modules, in particular three of the following modules: injector unit, drive unit for driving the injector unit, high-pressure storage unit for supplying the injector unit with fuel, high-pressure connection.
  • injector unit injector unit
  • drive unit for driving the injector unit
  • high-pressure storage unit for supplying the injector unit with fuel
  • high-pressure connection high-pressure connection.
  • the present invention is not limited to such an embodiment.
  • one of the three assemblies may also be an intermediate having high pressure bores for carrying high pressure fluid between two other assemblies.
  • the assemblies abut one another in at least two contact regions within the housing. There they are advantageously pressed tightly against each other, wherein this compression is effected by a generated or transmitted via the housing force.
  • the contact areas are contact planes which run perpendicular to the longitudinal direction of the high-pressure injector.
  • the high-pressure injector according to the invention has a layered structure in which the individual assemblies are arranged one behind the other in the housing in the longitudinal direction of the injector.
  • the two contact areas are the contact areas of the first module, which is completely enclosed by the housing, with further modules. Further advantageously, further contact areas between further modules are arranged in the housing.
  • At least one of the assemblies in a contact region recesses in order to increase the contact pressure.
  • the recesses thus ensure that the contact area between the modules is as small as possible in order to enable a tight connection via the higher contact pressure.
  • the recesses are designed symmetrically with respect to the central axis of the high-pressure injector in order to allow a uniform distribution of forces.
  • At least two of the assemblies according to the invention have axial high-pressure bores in the contact regions, which are in communication there with each other.
  • these axial high-pressure bores are surrounded by contact surfaces which lie on one another in the contact regions and are pressed together in a sealing manner.
  • a plurality of parallel high-pressure bores are provided, which are advantageously arranged symmetrically.
  • the assemblies within the housing form a contiguous and closed to the housing high-pressure area for guiding the fuel, which possibly occurs at the contact areas Leakage currents are collected in the area between the outer walls of the assemblies and the inner wall of the housing.
  • leakage currents are collected within the housing and led out of the housing via a common outlet.
  • this output for the leakage current is arranged in the region of the high-pressure connection.
  • the high-pressure connection serves as a connection to a double-walled high-pressure line.
  • the housing of the Hochdruckinjektors sealed with one or more O-rings to the outside.
  • the housing according to the invention has a connection region for the positive connection with a second assembly.
  • the housing can be screwed over the connection area with a second assembly.
  • the form-fitting connection allows a clamping of the housing with the module.
  • a connection of the housing takes place with the high-pressure connection.
  • the housing is designed as a union nut.
  • the housing accordingly has an internal thread, with which it can be screwed to the second assembly.
  • the housing has an elongate enveloping body, in which the further modules are arranged.
  • the connecting region of the housing is designed, for example, as a web region on which a threaded element is supported. This also allows a connection of the housing with the second module, through which arranged in the housing Assemblies are pressed against each other in their contact areas and so sealed together.
  • the housing has an opening with an undercut, with which it rests on a support region of a third assembly of Hochdruckinjektors.
  • the third assembly is held within the housing and transmits the contact pressure of the housing to the arranged in the interior of the housing assemblies.
  • the support region is arranged on the injector unit.
  • the third module protrudes with a partial area out of the housing.
  • the nozzle arrangement of the injector unit projects out of the housing on the front side.
  • the housing has a second opening through which the modules are inserted into the housing or via which the housing can be pushed over the modules.
  • the second opening is arranged in the connection region and in particular surrounded by this.
  • the assemblies can be moved during assembly within the housing in the longitudinal direction of the Hochdruckinjektors, and are fixed only in the housing via the positive connection of the housing with the second module.
  • the housing according to the invention has a rotationally symmetrical shape.
  • the housing completely encloses at least two subassemblies arranged one behind the other in the longitudinal direction of the injector.
  • these two assemblies are the drive unit and the high-pressure storage unit.
  • the present invention can be used in particular in those high-pressure engines which have a high-pressure storage unit for supplying the injector unit with fuel.
  • the integration of the high-pressure accumulator unit in the Hoch horrinjektor has the advantage that can be dispensed with a common rail system, since the fuel can be cached each at the Hochdruckinjektor.
  • the first assembly which is completely enveloped by the housing, is the drive unit and / or the high-pressure storage unit.
  • the drive unit or high-pressure storage unit are completely surrounded in this embodiment in the radial direction of the housing, wherein advantageously the housing additionally serves to connect the drive unit or the high-pressure accumulator unit with other components of the high-pressure injector.
  • the high-pressure storage unit according to the invention has a storage volume which corresponds to more than ten times a maximum injection volume during a cylinder cycle, moreover advantageously more than 10 times this volume, and advantageously more than 50 times this volume.
  • the high-pressure storage unit of the high-pressure injector according to the invention has a jacket area, in the interior of which the storage area of the high-pressure storage element is located.
  • This jacket region advantageously serves to transmit power between the assemblies within the housing. Further advantageously, the jacket forms a shell closed towards the housing.
  • the storage area can be formed by an axial bore.
  • the high-pressure storage unit has a filter and / or throttle valve unit.
  • this is the side of the High pressure port arranged on the high pressure storage unit so that fuel passes through the filter and / or throttle valve unit when flowing into the high-pressure accumulator.
  • the filter and / or throttle valve unit is pressed into the jacket of the high-pressure storage unit in an end region.
  • the filter and / or throttle valve unit is arranged in a cartridge which is pressed into the jacket of the high-pressure storage unit.
  • the jacket advantageously has a bore in the longitudinal direction of the high pressure injector, which receives the filter and / or throttle valve unit and opens into the storage area.
  • the drive unit has a jacket region in which one or more high-pressure bores for supplying the injector unit with fuel are or are arranged.
  • these holes connect the high-pressure accumulator with the injector unit.
  • the drive region of the drive unit is arranged within the jacket region. The high-pressure bores then lead the fuel past the drive region outside of the high-pressure accumulator to the injector unit.
  • holes are provided according to the invention, which lead to the injector unit.
  • the holes are arranged symmetrically in order to ensure a uniform force distribution.
  • the jacket region further serves to guide a drive element, in particular an electromagnet or a piezoelectric element.
  • the drive unit can work electromechanically or piezoelectrically.
  • the drive region of the drive unit is arranged in an axial, in particular centrally arranged bore of the jacket region
  • the injector unit also has a plurality of high-pressure lines, which are connected to the high-pressure accumulator, advantageously via the high-pressure lines in the drive element.
  • the injector unit according to the invention has a central valve channel in which a valve tappet is displaceably arranged in the longitudinal direction of the injector.
  • the valve stem is biased by a spring. Further advantageously, the valve stem is moved according to the invention via the drive unit.
  • the injector unit has a nozzle arrangement which serves to inject fuel.
  • a plurality of high pressure bores are provided in the injector, which supply the nozzle with fuel.
  • one or more high-pressure lines can be provided.
  • these are arranged symmetrically.
  • the nozzle arrangement can be arranged in the present invention at the tip of the injector as a separate assembly.
  • the nozzle assembly is attached via a union nut at the tip of the injector.
  • the injector unit and the attached nozzle arrangement must be dimensioned so that they can be pushed through the front opening of the housing.
  • electrical contacts for controlling the drive unit are further arranged in the region of the high-pressure connection of the high-pressure injector according to the invention.
  • the high-pressure connection is thus used in addition to the connection to a high-pressure system continue the electrical connection of the drive unit to a controller.
  • electrical lines for controlling the drive unit can be arranged in the jacket region of the high-pressure accumulator, so that the drive unit is electrically connected via the high-pressure accumulator unit.
  • the high-pressure injector according to the invention thereby serves for fuel injection at a pressure of more than 200 bar, in particular at more than 1000 bar, in particular at more than 1500 bar.
  • the fuel is over A pump is printed accordingly and made available to the Hochdruckinjektor over the high-pressure connection.
  • the fuel is temporarily stored in the high-pressure storage unit of the high-pressure injector.
  • the present invention further includes an internal combustion engine having one or more high pressure injectors as described above.
  • the or the Hochlichinjektoren are fastened by means of the high-pressure connection in the cylinder block.
  • a common rail arrangement can be dispensed with.
  • the internal combustion engine according to the invention is a diesel engine.
  • the present invention further comprises a method for producing a Hoch horrinjektors, as described above, with the steps: arrangement of at least three modules in the longitudinal direction of the injector in a row, as well as arrangement of the housing around the modules, so that this completely encloses at least a first assembly.
  • the first assembly is in particular the drive unit and / or the high-pressure storage unit.
  • the housing encloses both the drive unit and the high-pressure storage unit completely.
  • the individual functional layers or assemblies of the high-pressure injector are advantageously arranged one behind the other in the longitudinal direction of the injector and oriented relative to one another, so that the high-pressure bore is arranged on the high-pressure bore.
  • the housing is now mounted, whereby the modules are pressed together.
  • the assembly of the housing takes place via a screw through which the contact pressure between the modules is provided.
  • the nut of the screw can be extended by hydraulic devices.
  • the screwing process can then be force-free until the mother tensile force is released.
  • the assemblies are biased and bolted together via the housing according to the invention, which is advantageously designed as a union nut.
  • the high-pressure injector in this case comprises an injector unit 1, a drive unit 2 for driving the injector unit 1, a high-pressure storage unit 3 for supplying the injector unit 1 with fuel and a high-pressure connection 4. Furthermore, the high-pressure injector according to the invention has a housing 5.
  • the injector unit 1, the drive unit 2, the high-pressure accumulator unit 3 and the high-pressure port 4 are arranged one behind the other in the longitudinal direction of the high-pressure injector and encounter each other or an intermediate piece 15 in contact areas (which are respectively between two assemblies).
  • the mechanical connection of the individual modules is now according to the invention via the housing 5, which completely surrounds the drive unit 2 and the high-pressure storage unit 3.
  • the modules are arranged within the housing in layers in the longitudinal direction of the Hoch horrinjektors one behind the other and are pressed together via the housing.
  • the high-pressure regions arranged in the assemblies are sealingly connected to one another, so that the housing forms a second wall.
  • the housing 5 has the form of a hollow cylinder in which the drive unit 2 and the high-pressure storage unit 3 are arranged one behind the other.
  • the injector unit 1 is only partially disposed within the housing and protrudes with its front part from a front opening of the housing.
  • the housing 5 is supported by an undercut 11 on a support edge 12 of the injector.
  • the housing 5 On the rear side, the housing 5 has an opening through which the modules can be inserted into the housing.
  • the housing 5 has a connection region 10 for connection to the high-pressure connection 4.
  • the invention takes place in the embodiment in this case via a screw connection with the high-pressure connection, to which the housing in the connection region 10 has an internal thread, with which the housing can be screwed onto an external thread of the high-pressure connection.
  • a separate threaded element for connection to the high-pressure connection would be conceivable.
  • the housing 5 is rotationally symmetrical, so that it can be screwed to the high-pressure connection like a normal union nut and compresses the assemblies arranged in layers.
  • the housing thus has the form of a union nut on, which is placed over the stack of injector unit 1, drive unit 2 and high pressure accumulator 3 and this clamped to the high pressure port.
  • the assemblies abut each other in contact planes 6 to 9 and are there pressed together by the pressure of the housing so that the terminating in the contact surfaces high pressure lines of the modules are tightly interconnected.
  • a contact plane 7, here between the drive unit 2 and the intermediate piece 15, is in Fig. 2 shown.
  • recesses 13 are provided in order to increase the contact pressure in the contact region 14. As a result, an improved sealing of the high-pressure line 14 is made possible.
  • the release by the recesses 13 is carried out symmetrically on the surface center or on the longitudinal axis of the high-pressure injector.
  • Fig. 2 To recognize this, several high-pressure lines for connecting the high-pressure accumulator to the injector unit are provided, in the embodiment 3. These are arranged symmetrically in order to achieve a uniform pressure distribution.
  • a jacket region 26 In the area of the drive unit 2, a jacket region 26 is provided, in the interior of which there is a receiving bore for the drive device.
  • the high-pressure lines 14 in this case extend around the centrally arranged receiving area in the jacket area.
  • the high-pressure storage unit 3 also has a jacket region 17, which has an axial bore 18, which serves as a high-pressure reservoir. For high-pressure connection while a cartridge assembly 27 is pressed with a filter and a throttle valve in the jacket portion 17.
  • an intermediate piece 15 is arranged in the embodiment between the drive unit 2 and the high-pressure storage unit 3, are arranged in which bores 16 for connecting the high pressure accumulator area 18 with high pressure lines 14 in the jacket of the drive unit 2.
  • the intermediate element 15 in this case has bores 16, which connect the centrally arranged storage area 18 with the high-pressure lines 14 of the drive unit 2 arranged in the jacket area.
  • a valve stem 21 is arranged, which is moved via the drive device 20.
  • the drive device can be carried out electromagnetically as in the embodiment, or for example piezoelectrically.
  • tip of the injector 1 further comprises a nozzle assembly 22 is provided, which in turn is attached via a union nut 23 at the tip of the injector.
  • the high-pressure connection is connected to a conventional double-walled high-pressure line.
  • customary nipple 24 are screwed in the high-pressure connection, wherein the high-pressure connection takes over the function of high-pressure inlet and outlet.
  • the injector is then attached via the high pressure port in the cylinder block.
  • the high-pressure connection also includes the electrical contacts for connecting the drive unit 2.
  • the electrical lines are guided through the jacket area 17 of the high-pressure accumulator 3 and the intermediate piece 15 to the drive unit 2.
  • the individual functional layers are arranged oriented on one another, so that the high-pressure bore is aligned with the high-pressure bore.
  • the functional layers are then biased and screwed by the housing 5 designed as a union nut.
  • the housing 5 can over the stacked assemblies are pushed until it rests with the undercut 11 on the support plane 12 of the injector unit.
  • the bracing of the stack is then done by screwing with the high pressure port. 4
  • the housing may be designed as a closed union nut which completely envelopes the drive region of the injector. Furthermore, the union nut and the high-pressure accumulator completely envelop.
  • the union nut is supported on the front side of the injector and is screwed back to the high pressure port.
  • the high pressure injector is mounted in the cylinder block via the high pressure port.
  • standardized connection nipple are screwed.
  • the high pressure connection advantageously further includes the function of electrical contacting of the drive unit.
  • the high-pressure connection assumes the function of high-pressure inlet, high-pressure drain and seal of the pressure accumulator and is screwed tight by the union nut. Furthermore, a cartridge assembly with a filter and a throttle valve can be pressed in the accumulator.
  • one or more high pressure lines are provided.
  • the jacket of the drive assembly can also take over the function of a pressure screw and the guiding function of the magnet of the drive assembly.
  • the pressure accumulator, the jacket of the drive assembly and the injector unit are arranged one behind the other in the longitudinal direction of the high-pressure injector.
  • the individual levels encounter each other in contact areas.
  • the levels are thereby released at the separation points so that a sufficient contact pressure for sealing the high pressure guide remains.
  • the release takes place symmetrically on the surface center.
  • the functional layers are oriented during assembly, high-pressure bore to high-pressure bore, biased and bolted with a union nut.
  • the nut can be extended by hydraulic means and the screwing is then force-free until the release of the nut traction.
  • the present invention results in an extremely compact and simply constructed arrangement in which the housing serves as a second shell of the assemblies arranged in the housing and to their mechanical connection.
  • the assemblies are pressed together in their contact areas by the bias applied by the housing bias.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)
EP11003160.6A 2010-05-07 2011-04-14 Injecteur haute pression Withdrawn EP2385238A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00706/10A CH702496B1 (de) 2010-05-07 2010-05-07 Hochdruckinjektor.

Publications (2)

Publication Number Publication Date
EP2385238A2 true EP2385238A2 (fr) 2011-11-09
EP2385238A3 EP2385238A3 (fr) 2014-11-26

Family

ID=44260966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11003160.6A Withdrawn EP2385238A3 (fr) 2010-05-07 2011-04-14 Injecteur haute pression

Country Status (3)

Country Link
US (1) US8939128B2 (fr)
EP (1) EP2385238A3 (fr)
CH (1) CH702496B1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH702496B1 (de) * 2010-05-07 2011-07-15 Liebherr Machines Bulle Sa Hochdruckinjektor.
WO2013117311A1 (fr) * 2012-02-07 2013-08-15 Ganser-Hydromag Ag Injecteur de carburant et dispositif pour l'injection de carburant
AT512162B1 (de) * 2012-05-08 2013-06-15 Bosch Gmbh Robert Verschlussbolzen mit Durchflussbegrenzer
AT512960B1 (de) * 2012-05-22 2014-03-15 Bosch Gmbh Robert Injektor eines modularen Common-Rail-Kraftstoffeinspritzsystems
US9803603B2 (en) 2013-03-01 2017-10-31 Ganser-Hydromag Ag Device for injecting fuel into the combustion chamber of an internal combustion engine
DE102018118120A1 (de) * 2018-07-26 2020-01-30 Liebherr-Components Deggendorf Gmbh Anschlussstück für Kraftstoffinjektor eines Verbrennungsmotors
DE102020108816A1 (de) 2020-03-31 2021-09-30 Liebherr-Components Deggendorf Gmbh Kraftstoffinjektor
DE102020113608A1 (de) * 2020-03-31 2021-09-30 Liebherr-Components Deggendorf Gmbh Kraftstoffinjektorgehäuse und Injektor mit einem solchen Gehäuse
CN114837866B (zh) * 2022-06-09 2023-04-28 安庆中船柴油机有限公司 一种共轨式船用柴油机喷油器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007009279A1 (fr) 2005-07-18 2007-01-25 Ganser-Hydromag Ag Systeme d'injection d'accumulateur pour moteur a combustion interne

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081140A (en) * 1976-07-19 1978-03-28 Caterpillar Tractor Co. Capsule-type fuel nozzle
US4426977A (en) * 1980-12-17 1984-01-24 The Bendix Corporation Dual solenoid distributor pump system
US4418671A (en) * 1980-12-17 1983-12-06 The Bendix Corporation Dual solenoid distributor pump
AT378242B (de) * 1981-07-31 1985-07-10 Berchtold Max Prof Kraftstoffeinspritzanlage fuer brennkraftmaschinen, insbesondere dieselmotoren
DE3440396A1 (de) 1984-11-06 1986-05-07 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoff-einspritzduese fuer brennkraftmaschinen
US5241935A (en) * 1988-02-03 1993-09-07 Servojet Electronic Systems, Ltd. Accumulator fuel injection system
US5467754A (en) * 1988-02-03 1995-11-21 Servojet Electronic Systems, Ltd. Accumulator fuel injection system
US5537972A (en) * 1994-07-28 1996-07-23 Servojet Electronics Systems Fuel injection system having a pressure intensifier incorporating an overtravel safety feature
DE4437927C2 (de) * 1994-10-24 1996-09-12 Bosch Gmbh Robert Magnetventilgesteuerte Kraftstoffeinspritzvorrichtung mit einer Einspritzdüse zur Kraftstoffeinspritzung in den Brennraum einer Dieselbrennkraftmaschine
DK174075B1 (da) 1996-06-20 2002-05-21 Man B & W Diesel As Brændselsinjektor til en forbrændingsmotor
DE19902282A1 (de) 1999-01-21 2000-08-17 Siemens Ag Injektor für eine Einspritzanlage einer Brennkraftmaschine
DE19937713C1 (de) * 1999-08-10 2001-03-15 Siemens Ag Steuerventilanordnung zum Einsatz in einem Kraftstoffinjektor für Verbrennungsmotoren
US6420817B1 (en) * 2000-02-11 2002-07-16 Delphi Technologies, Inc. Method for detecting injection events in a piezoelectric actuated fuel injector
JP2002031016A (ja) * 2000-07-21 2002-01-31 Toyota Industries Corp 燃料噴射器
DE10131953A1 (de) * 2001-07-02 2003-01-23 Siemens Ag Steuermodul für einen Injektor eines Speichereinspritzsystems
DE10210282A1 (de) * 2002-03-08 2003-09-25 Bosch Gmbh Robert Vorrichtung zum Einspritzen von Kraftstoff an stationären Verbrennungskraftmaschinen
JP2005069135A (ja) * 2003-08-26 2005-03-17 Toyota Motor Corp 燃料噴射装置
ATE375446T1 (de) * 2004-01-13 2007-10-15 Delphi Tech Inc Kraftstoffeinspritzventil
DE102005039688A1 (de) * 2005-08-22 2007-03-01 Siemens Ag Düsenbaugruppe für ein Einspritzventil
JP4609271B2 (ja) * 2005-10-12 2011-01-12 株式会社デンソー 燃料噴射弁
DE102005062549A1 (de) * 2005-12-27 2007-07-05 Robert Bosch Gmbh Kraftstoffinjektor für eine Brennkraftmaschine, sowie Verfahren zum Herstellen eines Steuerventils für einen Kraftstoffinjektor
DE202006002663U1 (de) 2006-02-20 2006-04-13 Robert Bosch Gmbh Kraftstoffinjektor für Brennkraftmaschinen
EP1837518B1 (fr) * 2006-03-20 2011-05-25 Delphi Technologies Holding S.à.r.l. Dispositif d'amortissement pour un injecteur de carburant
DE102006027614B4 (de) * 2006-06-13 2009-02-05 L'orange Gmbh Einspritzinjektor für Brennkraftmaschinen
AT503660B1 (de) 2006-06-13 2007-12-15 Bosch Gmbh Robert Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine
US7552717B2 (en) * 2007-08-07 2009-06-30 Delphi Technologies, Inc. Fuel injector and method for controlling fuel injectors
JP4623066B2 (ja) * 2007-08-31 2011-02-02 株式会社デンソー 内燃機関の噴射制御装置
DE102008015611A1 (de) * 2008-03-26 2009-10-29 Man Diesel Se Common-Rail-System
JP4798247B2 (ja) * 2009-03-31 2011-10-19 株式会社デンソー コネクタ
EP2273097B1 (fr) * 2009-06-15 2011-12-14 Delphi Technologies Holding S.à.r.l. Injecteur de carburant
CH702496B1 (de) * 2010-05-07 2011-07-15 Liebherr Machines Bulle Sa Hochdruckinjektor.
US8596247B2 (en) * 2010-07-13 2013-12-03 Caterpillar Inc. Fuel delivery assembly

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007009279A1 (fr) 2005-07-18 2007-01-25 Ganser-Hydromag Ag Systeme d'injection d'accumulateur pour moteur a combustion interne

Also Published As

Publication number Publication date
US20110271935A1 (en) 2011-11-10
CH702496B1 (de) 2011-07-15
US8939128B2 (en) 2015-01-27
EP2385238A3 (fr) 2014-11-26

Similar Documents

Publication Publication Date Title
EP2385238A2 (fr) Injecteur haute pression
EP2188516B1 (fr) Dispositif d'injection de carburant
EP2812559B1 (fr) Injecteur de carburant et dispositif d'injection de carburant
DE2336575C3 (de) Elektromagnetisch gesteuerte Kraftstoffeinspritzdüse für Kolbenbrennkraftmaschinen
DE19607521C1 (de) Kraftstoff-Verteilerrohr
EP0889231B1 (fr) Système d'injection de combustible
DE102008035492B4 (de) Railbaugruppe einer Kraftstoffeinspritzanlage
DE102008035494B4 (de) Railbaugruppe einer Kraftstoffeinspritzanlage
EP1780406B1 (fr) Injecteur pour un système d'injection de carburant et système d'injection de carburant avec tel injecteur
DE102005054361A1 (de) Hochdruckkraftstoffinjektor
EP1846656B1 (fr) Separation electrique dans des injecteurs de carburant
EP1278952B1 (fr) Soupape d'injection de carburant
WO2020157217A1 (fr) Répartiteur de carburant pour un moteur à combustion interne
EP2839141B1 (fr) Griffe de serrage pour fixer un injecteur de carburant à une culasse d'un moteur à combustion interne, ensemble comprenant une griffe de serrage et système d'injection de carburant comprenant une griffe de serrage
EP1543237A1 (fr) Systeme d'injection de carburant et culasse avec reservoir de carburant central
EP1117923A1 (fr) Accumulateur haute pression pour carburant
DE102014200597A1 (de) Brennstoffeinspritzanlage mit einer Brennstoff führenden Komponente, einem Brennstoffeinspritzventil und einem Halter
DE102008035462B4 (de) Railbaugruppe einer Kraftstoffeinspritzanlage
DE102008035489B4 (de) Railbaugruppe einer Kraftstoffeinspritzanlage
DE60304569T2 (de) Zusammenbau eines Injektors
DE102008035491A1 (de) Railbaugruppe einer Kraftstoffeinspritzanlage
EP1546542B1 (fr) Soupape d'injection pour l'injection de carburant dans un moteur a combustion interne
DE102004021040A1 (de) Einspritzeinrichtung für eine Brennkraftmaschine
DE102012004935B4 (de) Common-Rail
DE102008035493B4 (de) Railbaugruppe einer Kraftstoffeinspritzanlage

Legal Events

Date Code Title Description
AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: F02M 47/02 20060101AFI20141022BHEP

Ipc: F02M 55/00 20060101ALI20141022BHEP

Ipc: F02M 61/16 20060101ALI20141022BHEP

17P Request for examination filed

Effective date: 20150520

17Q First examination report despatched

Effective date: 20160525

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20171024