EP0937202A1 - Injecteur de carburant - Google Patents

Injecteur de carburant

Info

Publication number
EP0937202A1
EP0937202A1 EP98940057A EP98940057A EP0937202A1 EP 0937202 A1 EP0937202 A1 EP 0937202A1 EP 98940057 A EP98940057 A EP 98940057A EP 98940057 A EP98940057 A EP 98940057A EP 0937202 A1 EP0937202 A1 EP 0937202A1
Authority
EP
European Patent Office
Prior art keywords
valve
fuel injection
sealing
sealing elements
plastic encapsulation
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
Application number
EP98940057A
Other languages
German (de)
English (en)
Other versions
EP0937202B1 (fr
Inventor
Dieter Maier
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 EP0937202A1 publication Critical patent/EP0937202A1/fr
Application granted granted Critical
Publication of EP0937202B1 publication Critical patent/EP0937202B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • 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
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • F02M51/0682—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the body being hollow and its interior communicating with the fuel flow
    • 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
    • F02M51/08—Injectors peculiar thereto with means directly operating the valve needle specially for low-pressure fuel-injection
    • 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

Definitions

  • the invention relates to a fuel injector according to the preamble of the main claim.
  • Numerous fuel injection valves are already known, for example from EP-PS 0 348 786 or from DE-OS 40 08 118, which have a plurality of sealing rings on their outer peripheries, which are usually designed as O-rings.
  • the geometrical arrangement or the position of the sealing rings which represent independent components and are to be assembled separately depends on the installation conditions on the internal combustion engine or the embodiments of the valves, which can be designed, for example, as top feed injectors or bottom feed injectors.
  • the desired sealing with the sealing rings takes place against an intake manifold, a cylinder head or receiving sleeves or a fuel rail, a distribution line or the like.
  • the sealing rings are placed on the fuel injector in specially designed installation spaces, such as ring grooves, on the valve housing, on the nozzle body, on front bodies or on the plastic encapsulation.
  • installation spaces such as ring grooves, on the valve housing, on the nozzle body, on front bodies or on the plastic encapsulation.
  • DE-OS 195 12 339 it is already known to provide hose-like sealing elements on fuel injection valves with plastic encapsulation, which are present at the ends of the plastic encapsulation directly on metal parts of the valve.
  • the sealing elements surround the respective metallic part of the valve completely radially and are at least partially radially surrounded by the plastic encapsulation.
  • Fuel injection valve to the outside for example with respect to a fuel rail, a distribution line or an intake manifold or a cylinder head, is guaranteed. Sealing is carried out by sealing elements according to the invention, which are generated in a plastic injection molding tool before or together with or after the plastic injection molding of the fuel injector. With such a tool, e.g. advantageously after the plastic injection molding of the valve jacket, a second injection process, in which the sealing elements on the
  • Plastic extrusion molded on that at least one flat contact area is formed.
  • a material connection is present in the contact areas of the sealing material of the sealing element with the plastic of the plastic extrusion coating.
  • a one-sided flat contact can be achieved at one end of the plastic encapsulation, a two-sided flat contact at a step section of the plastic encapsulation and a three-sided flat contact in ring grooves on the outer circumference of the plastic encapsulation.
  • the thicknesses and widths (axial extension lengths) of the sealing elements can be varied slightly.
  • a large variety of shapes is easy to produce, with curved, rounded or flat outer contours and contours provided with sealing lips or sealing ribs being useful.
  • FIG. 1 shows a fuel injector with various sealing elements
  • FIG. 2 shows a sealing element with several sealing lips however, it is only shown as a separate component for better illustration of the geometry.
  • the fuel injection valve according to the invention for fuel injection systems of mixture-compressing, spark-ignited internal combustion engines shown by way of example and partially in simplified form in FIG.
  • the base body 2 is designed with multiple steps and largely constitutes a valve housing of the fuel injector.
  • the solenoid 1 is composed of at least one, for example two, guide elements designed as brackets and serving as ferromagnetic elements or guide elements 6 surround. Each guide element 6 partially surrounds the magnetic coil 1 in the circumferential direction and can be connected to the base body 2 by welding, soldering or gluing with one end each above and below the magnetic coil 1.
  • the base body 2 has an inner longitudinal opening 11, which runs concentrically to a longitudinal valve axis 10 and serves as a fuel flow channel in an upstream region 11a and additionally at least partially as a guide opening for a valve needle 12 axially movable along the longitudinal valve axis 10 in a downstream region 11b.
  • the area 11b has a larger diameter than the area 11a, since a step shoulder 13 is provided in the longitudinal opening 11 in the axial extension area of the magnet coil 1.
  • the base body 2 has a thin-walled magnetic throttle point 16.
  • a valve seat body 14 is introduced, which has a fixed valve seat surface 15 as the valve seat.
  • the valve seat body 14 is fixedly connected to the base body 2 by means of a weld seam, for example produced by means of a laser.
  • the lower region 11b of the longitudinal opening 11 serves to receive the valve needle 12, which is formed by an armature 17 and a spherical valve closing body 18.
  • a flat spray perforated disk 20 is arranged on the downstream end face of the valve seat body 14.
  • the armature 17 serving as a closing body support is firmly connected at its downstream end facing the spraying orifice plate 20 to the spherical valve closing body 18, for example by a weld seam.
  • the injection valve is actuated electromagnetically in a known manner.
  • the electromagnetic circuit with the magnet coil 1, the inner base body 2, the guide elements 6 and the armature 17 is used.
  • the armature 17 is corresponding to the Step paragraph 13 of the base body 2 aligned.
  • the return spring 25 extends in the longitudinal opening 11, for example, both downstream and upstream of the stepped shoulder 13, that is to say in both regions 11a and 11b.
  • the spherical valve closing body 18 interacts with the valve seat surface 15 of the valve seat body 14 which tapers in the shape of a truncated cone and which in the axial direction is downstream of a guide opening in the Valve seat body 14 is formed.
  • the spray plate 20 has at least one, for example four, spray openings 27 formed by erosion or stamping.
  • Injection valve is, among other things, decisive for the stroke of the valve needle 12.
  • the one end position of the valve needle 12 when the magnet coil 1 is not energized is determined by the valve closing body 18 resting on the valve seat surface 15 of the valve seat body 14, while the other end position of the valve needle 12 is established when the valve needle 12 is energized Magnetic coil 1 results from the system of the armature 17 on the step shoulder 13 of the base body 2.
  • the stroke is adjusted by axially displacing the valve seat body 14 in accordance with the desired one
  • an adjusting sleeve 29 is inserted into the upper region 11a of the longitudinal opening 11.
  • Adjusting sleeve 29 is used to adjust the spring preload of the return spring 25 abutting the adjusting sleeve 29, which is supported with its opposite side on a bottom region 30 of an inner recess 31 in the armature 17, the dynamic injection quantity also being adjusted using the adjusting sleeve 29.
  • At least one through opening 35 is formed in the armature 17, for example two or four through openings 35 are formed, which extend obliquely to the valve axis 10 to the outside.
  • the armature 17 tapers in the downstream direction, the outer contour being frustoconical. This design of the armature 17 enables that of the valve seat surface 15
  • the fuel to be supplied can first flow freely through the recess 31 inside and after exiting the through openings 35 outside the valve needle 12.
  • the fuel injector is largely with a
  • Plastic encapsulation 38 enclosed, which extends almost completely in the axial direction over the base body 2 and thereby also the guide elements 6.
  • This plastic encapsulation 38 includes, for example, an injection-molded electrical connector 39, in which e.g. two contact pins 40 starting from the magnetic coil 1 end. The electrical contacting of the magnetic coil 1 and thus the excitation thereof takes place via the electrical connector 39.
  • sealing elements 45, 45a-d connected to the plastic encapsulation 38 are provided on the outer circumference of the fuel injector do not represent seal components that can be assembled independently. Rather, these sealing elements 45 occur before or immediately during or after the attachment of the
  • Plastic injection molded 38 A two-substance spraying technique is necessary for such a procedure.
  • a particularly preferred procedure is described in more detail below.
  • a second injection process is carried out with the same tool, in which the sealing elements 45 are produced.
  • the plastic injection molding in Plastic injection mold removed at the locations of the sealing elements 45 to be produced slide.
  • the plastic encapsulation 38 must already have a certain stability and shape retention, the plastic still having such a softness that an optimal material connection with the material of the desired sealing elements 45 takes place.
  • Various types of rubber (elastomers) or elastic plastics as are known, for example, from O-rings or other sealing rings on injection valves, are particularly suitable as materials for the sealing elements 45.
  • a very flexible shape and spatial arrangement can be made in the formation of the sealing elements 45 by means of injection molding.
  • FIG. 1 several examples relating to the shape and arrangement of the sealing elements 45 are shown on the fuel injector, which are identified by additional letters from a to d. Only a single sealing element 45 can be provided on the fuel injection valve; however, several sealing elements 45 molded on according to the invention can also be present on one and the same fuel injector. This can be varied depending on the installation conditions.
  • the sealing element 45a on the inlet-side upper end of the plastic encapsulation 38 is injection-molded, for example, in such a way that, on the one hand, it lies directly against the base body 2 with a flat inside 47 and, on the other hand, is available with a curved outside 48 for sealing against another component (for example fuel rail).
  • the sealing element 45a also has direct surface contact with an upper end face 52 of the plastic encapsulation 38.
  • Another injection variant of the sealing element 45 is shown at the injection-side end of the plastic encapsulation 38, in which the sealing element 45d is sprayed directly onto the plastic encapsulation 38, specifically in a step section 55 provided for this purpose.
  • Sealing element 45d now lies with the flat inner side 47 against the plastic encapsulation 38, while the at least partially curved outer side 48 is ready for sealing against another component (e.g. suction pipe). With a flat, flat upper side 50, the sealing element 45d also lies directly against a shoulder 56 of the step section 55 of the plastic encapsulation 38. In contrast to the sealing element 45a, the sealing element 45d thus has two contact surfaces with the plastic encapsulation 38.
  • sealing element 45 Two further variants for the formation of a sealing element 45 on the circumference of the fuel injection valve and in this case specifically on the circumference of the plastic encapsulation 38 are shown with the sealing elements 45b and 45c.
  • 38 annular grooves 58 are provided in the plastic encapsulation, into which the sealing elements 45b and 45c are injected. These annular grooves 58 are located in the middle part of the axial extension of the plastic encapsulation 38, e.g. in the
  • Extension area of the magnetic coil 1 or the adjusting sleeve 29 At least on the groove base of the ring grooves 58 there is a flat, cohesive contact of the inner sides 47 of the sealing elements 45 with the plastic encapsulation 38.
  • the outer sides 48 of the sealing elements 45 can be curved
  • sealing element 45b or rather flat with rounded edges (sealing element 45c) or completely flat.
  • the thicknesses and the widths (axial extension lengths) of the sealing elements 45 can be varied slightly.
  • the arrangement of such middle sealing elements 45b and 45c results in the advantage of a very large variability in the installation position with one and the same fuel injection valve. Without changes in
  • Valve group (e.g. on the base body 2 or on the valve needle 12), for example, can be used at any time with a valve of this type to provide a further injection point, if necessary, by moving the valve further into the intake manifold.
  • the suction pipe-side seal is then taken over by the sealing element 45c, for example, instead of the sealing element 45d. Since the sealing elements 45 can be formed very easily with different thicknesses, it is possible to use different sealing elements 45b, 45c, 45d for sealing against the opening despite different valve outer diameters (e.g. largest diameter in the area of the solenoid coil 1, smallest diameter in the area of the valve closing body 18) a suction pipe socket with a constant diameter.
  • the sealing elements 45 can also have contours other than those shown in FIG. 1.
  • a plurality of sealing lips 60 or sealing ribs can be provided on the outer sides 48 of the sealing elements 45, as can be seen from the sealing element 45 shown in FIG. 2.
  • the individual sealing lips 60 run around the outer circumference of the sealing element 45, for example in a ring.
  • the sealing element 45 is shown as a separate component separated from the plastic encapsulation 38 only for better verification of its geometry, but according to the invention is not present as an independently mountable sealing component.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un injecteur de carburant qui présente un corps d'injecteur (2) et une partie surmoulée en matière plastique (38) entourant au moins partiellement le corps d'injecteur (2). Des éléments d'étanchéité (45) servant à étanchéifier l'injecteur vis-à-vis d'une rampe d'injection de carburant, d'une tubulure d'admission ou similaire, sont prévus à la périphérie externe de l'injecteur. Chacun des éléments d'étanchéité (45) présente un contact au moins partiellement plat avec la partie surmoulée en matière plastique (38). Ces éléments d'étanchéité (45) sont moulés par injection sur la partie surmoulée (38) ou dans des évidements (55, 58) de la partie surmoulée (38). Cet injecteur de carburant s'utilise de façon particulièrement appropriée dans des systèmes d'injection de carburant de moteurs à combustion interne, à allumage commandé et à compression du mélange.
EP98940057A 1997-09-06 1998-06-26 Injecteur de carburant Expired - Lifetime EP0937202B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19739150A DE19739150A1 (de) 1997-09-06 1997-09-06 Brennstoffeinspritzventil
DE19739150 1997-09-06
PCT/DE1998/001757 WO1999013213A1 (fr) 1997-09-06 1998-06-26 Injecteur de carburant

Publications (2)

Publication Number Publication Date
EP0937202A1 true EP0937202A1 (fr) 1999-08-25
EP0937202B1 EP0937202B1 (fr) 2002-03-20

Family

ID=7841496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98940057A Expired - Lifetime EP0937202B1 (fr) 1997-09-06 1998-06-26 Injecteur de carburant

Country Status (5)

Country Link
US (1) US6076802A (fr)
EP (1) EP0937202B1 (fr)
JP (1) JP4083244B2 (fr)
DE (2) DE19739150A1 (fr)
WO (1) WO1999013213A1 (fr)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6047907A (en) 1997-12-23 2000-04-11 Siemens Automotive Corporation Ball valve fuel injector
US6508418B1 (en) * 1998-05-27 2003-01-21 Siemens Automotive Corporation Contaminant tolerant compressed natural gas injector and method of directing gaseous fuel therethrough
US20010002680A1 (en) 1999-01-19 2001-06-07 Philip A. Kummer Modular two part fuel injector
US6431474B2 (en) 1999-05-26 2002-08-13 Siemens Automotive Corporation Compressed natural gas fuel injector having magnetic pole face flux director
US6405947B2 (en) 1999-08-10 2002-06-18 Siemens Automotive Corporation Gaseous fuel injector having low restriction seat for valve needle
US6676044B2 (en) 2000-04-07 2004-01-13 Siemens Automotive Corporation Modular fuel injector and method of assembling the modular fuel injector
US6648249B1 (en) * 2000-08-09 2003-11-18 Siemens Automotive Corporation Apparatus and method for setting injector lift
US6481646B1 (en) 2000-09-18 2002-11-19 Siemens Automotive Corporation Solenoid actuated fuel injector
US6523756B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having a lift set sleeve
US6547154B2 (en) 2000-12-29 2003-04-15 Siemens Automotive Corporation Modular fuel injector having a terminal connector interconnecting an electromagnetic actuator with a pre-bent electrical terminal
US6502770B2 (en) 2000-12-29 2003-01-07 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6769636B2 (en) 2000-12-29 2004-08-03 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having an integral filter and O-ring retainer assembly
US6811091B2 (en) 2000-12-29 2004-11-02 Siemens Automotive Corporation Modular fuel injector having an integral filter and dynamic adjustment assembly
US6523761B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having a lift set sleeve
US6568609B2 (en) 2000-12-29 2003-05-27 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having an integral filter and o-ring retainer assembly
US6520422B2 (en) 2000-12-29 2003-02-18 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6695232B2 (en) 2000-12-29 2004-02-24 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having a lift set sleeve
US6536681B2 (en) 2000-12-29 2003-03-25 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having an integral filter and O-ring retainer assembly
US6698664B2 (en) 2000-12-29 2004-03-02 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having an integral filter and dynamic adjustment assembly
US6655609B2 (en) 2000-12-29 2003-12-02 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having an integral filter and o-ring retainer assembly
US6523760B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6550690B2 (en) 2000-12-29 2003-04-22 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having an integral filter and dynamic adjustment assembly
US6508417B2 (en) 2000-12-29 2003-01-21 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having a lift set sleeve
US6708906B2 (en) * 2000-12-29 2004-03-23 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having an integral filter and dynamic adjustment assembly
US6499668B2 (en) 2000-12-29 2002-12-31 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6511003B2 (en) 2000-12-29 2003-01-28 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6565019B2 (en) 2000-12-29 2003-05-20 Seimens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having an integral filter and O-ring retainer assembly
US6607143B2 (en) 2000-12-29 2003-08-19 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having a lift set sleeve
US6533188B1 (en) 2000-12-29 2003-03-18 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having an integral filter and dynamic adjustment assembly
US6520421B2 (en) 2000-12-29 2003-02-18 Siemens Automotive Corporation Modular fuel injector having an integral filter and o-ring retainer
DE10109407A1 (de) 2001-02-28 2002-09-05 Bosch Gmbh Robert Brennstoffeinspritzventil
US7093362B2 (en) 2001-03-30 2006-08-22 Siemens Vdo Automotive Corporation Method of connecting components of a modular fuel injector
US6904668B2 (en) 2001-03-30 2005-06-14 Siemens Vdo Automotive Corp. Method of manufacturing a modular fuel injector
US6676043B2 (en) 2001-03-30 2004-01-13 Siemens Automotive Corporation Methods of setting armature lift in a modular fuel injector
US6687997B2 (en) 2001-03-30 2004-02-10 Siemens Automotive Corporation Method of fabricating and testing a modular fuel injector
US6814311B2 (en) * 2001-05-30 2004-11-09 Unisia Jecs Corporation Fuel injection valve
DE10133263A1 (de) 2001-07-09 2003-02-06 Bosch Gmbh Robert Brennstoffeinspritzventil
US7458530B2 (en) * 2001-10-05 2008-12-02 Continental Automotive Systems Us, Inc. Fuel injector sleeve armature
JP2004293313A (ja) 2003-03-25 2004-10-21 Hitachi Unisia Automotive Ltd 燃料噴射弁
JP4089577B2 (ja) * 2003-09-25 2008-05-28 トヨタ自動車株式会社 筒内噴射用インジェクタ
US7354354B2 (en) * 2004-12-17 2008-04-08 Integran Technologies Inc. Article comprising a fine-grained metallic material and a polymeric material
FR2887951A1 (fr) * 2005-05-02 2007-01-05 Valco Cincinnati Inc Soupape a commande par solenoøde, distributeur d'adhesif et procede de distribution
US7617991B2 (en) * 2006-03-31 2009-11-17 Delphi Technologies, Inc. Injector fuel filter with built-in orifice for flow restriction
JP4211814B2 (ja) * 2006-07-13 2009-01-21 株式会社日立製作所 電磁式燃料噴射弁
DE102010040898A1 (de) * 2010-09-16 2012-03-22 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102010040910A1 (de) 2010-09-16 2012-03-22 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102010040914A1 (de) * 2010-09-16 2012-03-22 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102010040916A1 (de) * 2010-09-16 2012-03-22 Robert Bosch Gmbh Brennstoffeinspritzventil
EP2700806A1 (fr) * 2012-08-23 2014-02-26 Continental Automotive GmbH Injecteur de carburant, ensemble d'injection de carburant et utilisation d'une bague d'étanchéité
WO2017175611A1 (fr) * 2016-04-08 2017-10-12 イーグル工業株式会社 Solénoïde
US10947880B2 (en) * 2018-02-01 2021-03-16 Continental Powertrain USA, LLC Injector for reductant delivery unit having fluid volume reduction assembly
CN209164045U (zh) * 2018-11-19 2019-07-26 浙江锐韦机电科技有限公司 泵阀一体机构

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3857573A (en) * 1972-08-03 1974-12-31 Lucas Electrical Co Ltd Mounting arrangements for injectors for i.c. engine fuel injection systems
US4782853A (en) * 1986-12-22 1988-11-08 Stanadyne, Inc. Hot and cold water mixing valve with constant frictional resistance
IT1219397B (it) * 1988-06-23 1990-05-11 Weber Srl Valvola per la dosatura e la polverizzazione di carburante ad azionamento elettromagnetico provvista di doppia serie di fori laterali di ingresso del carburante
EP0348786B1 (fr) 1988-06-28 1992-08-26 Siemens Aktiengesellschaft Soupape électromagnétique d'injection de combustible
IT1231875B (it) 1989-03-14 1992-01-14 Weber Srl Perfezionamento nel circuito di alimentazione del carburante in una valvola per l'iniezione del carburante per un motore a combustione interna ad azionamento elettromagnetico
US5127434A (en) * 1989-03-17 1992-07-07 Coltec Industries Inc. Control module having multiple solenoid actuated valves
AT400748B (de) * 1991-02-06 1996-03-25 Weber Guenter Patronenventil
US5358215A (en) * 1993-06-25 1994-10-25 Borg-Warner Automotive, Inc. Encapsulated solenoid operated valve assembly
DE4415850A1 (de) * 1994-05-05 1995-11-09 Bosch Gmbh Robert Ventilnadel für ein elektromagnetisch betätigbares Ventil
US5462231A (en) * 1994-08-18 1995-10-31 Siemens Automotive L.P. Coil for small diameter welded fuel injector
DE19512339B4 (de) * 1995-04-01 2010-06-10 Robert Bosch Gmbh Elektromagnetisch betätigbares Brennstoffeinspritzventil
DE19529550A1 (de) * 1995-08-11 1997-02-13 Hydraulik Ring Gmbh Steuerungseinrichtung, insbesondere für Getriebe von Kraftfahrzeugen, sowie Verfahren zur Herstellung einer Steuerungseinrichtung
DE19534887B4 (de) * 1995-09-20 2004-04-15 Robert Bosch Gmbh Temperaturfühler
US5718206A (en) * 1995-10-12 1998-02-17 Nippondenso Co., Ltd. Fuel supply system having fuel rail

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9913213A1 *

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DE59803427D1 (de) 2002-04-25
US6076802A (en) 2000-06-20
JP2001504916A (ja) 2001-04-10
WO1999013213A1 (fr) 1999-03-18
EP0937202B1 (fr) 2002-03-20
JP4083244B2 (ja) 2008-04-30
DE19739150A1 (de) 1999-03-11

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