EP1315900B1 - Fuel injection valve - Google Patents

Fuel injection valve Download PDF

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Publication number
EP1315900B1
EP1315900B1 EP01964937A EP01964937A EP1315900B1 EP 1315900 B1 EP1315900 B1 EP 1315900B1 EP 01964937 A EP01964937 A EP 01964937A EP 01964937 A EP01964937 A EP 01964937A EP 1315900 B1 EP1315900 B1 EP 1315900B1
Authority
EP
European Patent Office
Prior art keywords
valve
armature
fuel injection
valve needle
injection valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP01964937A
Other languages
German (de)
French (fr)
Other versions
EP1315900A1 (en
Inventor
Martin Mueller
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
Priority to DE10043085 priority Critical
Priority to DE10043085A priority patent/DE10043085A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to PCT/DE2001/003266 priority patent/WO2002018776A1/en
Publication of EP1315900A1 publication Critical patent/EP1315900A1/en
Application granted granted Critical
Publication of EP1315900B1 publication Critical patent/EP1315900B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664Injectors 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
    • F02M51/0685Injectors 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 and the valve being allowed to move relatively to each other or not being attached to each other
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/30Fuel-injection apparatus having mechanical parts, the movement of which is damped
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/165Filtering elements specially adapted in fuel inlets to injector

Description

    State of the art
  • The invention relates to a fuel injection valve according to the preamble of the main claim.
  • It is already known from US 4,766,405 a fuel injection valve having a connected to a valve needle valve closing body which cooperates with a formed on a valve seat body valve seat surface to a sealing seat has. For electromagnetic actuation of the fuel injection valve, a magnetic coil is provided, which cooperates with an armature which is non-positively connected to the valve needle. To the armature and the valve needle, an additional mass is provided in a cylindrical shape, which is connected via an elastomer layer to the armature.
  • The disadvantage here is in particular the complex design with an additional component. Also, the large-area elastomer ring is unfavorable for the course of the magnetic field and makes it difficult to close the field lines and thus the achievement of high attraction forces in the opening movement of the fuel injection valve.
  • Also from the above document an embodiment of a fuel injection valve is known in which for damping and Entprellung to the armature and the valve needle, a further cylindrical mass is provided, which is movably clamped by two elastomeric rings in position and held. Upon impact of the valve needle on the valve seat, this second mass can move relative to the armature and valve needle and prevent bouncing of the valve needle.
  • A disadvantage of this embodiment, the additional effort and space. Also, the armature is not decoupled, whereby its pulse at the valve needle increases the tendency to bounce.
  • From US 5,299,776 a fuel injection valve with a valve needle and an armature is known, which is movably guided on the valve needle and whose movement is limited in the stroke direction of the valve needle by a first stop and against the stroke direction by a second stop. The fixed by the two attacks axial movement of the armature leads within certain limits to a decoupling of the inertial mass of the valve needle on the one hand and the inertial mass of the armature on the other. This counteracts a rebound of the valve needle from the valve seat surface during closing of the fuel injection valve within certain limits. However, since the axial position of the armature with respect to the valve needle by the free movement of the armature is completely undefined, Preller be avoided only to a limited extent. In particular, in the known from the above-mentioned document construction of the fuel injection valve is not avoided that the armature impinges on the valve closing body facing the stop during the closing movement of the fuel injection valve and transmits its pulse to the valve needle. This sudden pulse transmission can cause additional bumps of the valve closing body.
  • It is further known from practice to fasten the armature guided on the valve needle by an elastomeric ring in its position movable clamped. For this purpose, the armature is held between two welded to the valve needle flanges, wherein between the armature and lower flange is an elastomeric ring. However, the problem arises that a bore through the armature is necessary to supply the fuel to the sealing seat. The bore through the armature is carried out near the valve needle, wherein the valve seat facing the mouth of the bore is partially covered by the elastomeric ring. This leads to an uneven pressing of the elastomer ring, the bore edges eventually lead by edge pressure to a destruction of the elastomer ring. In addition, it comes to vibrational excitations of the non-supported elastomeric ring, which also contribute to the disturbance by the bore edges. This occurs especially at low temperatures when the elastomer goes into a stiff state.
  • From the unpublished WO 02/12709 A 1, a fuel injection valve is already known, which comprises a valve needle which cooperates with a valve seat surface to a sealing seat, and an armature acting on the valve needle, wherein the armature is arranged to be axially movable on the valve needle and of a damping element made of an elastomer is damped. Between the armature and the damping element, a first intermediate ring is arranged. The intermediate element and / or the flange have radial and / or axial channels which connect an internal volume located between the valve needle and the damping element to a central recess of the fuel injection valve. The drainage channels serve to avoid disadvantageous bouncers of the armature or of the valve needle.
  • Advantages of the invention
  • The fuel injection valve according to the invention with the characterizing features of the main claim has the advantage that the armature and the valve needle are damped by a liquid damper, which is formed by the interaction of an elastomeric ring and a liquid-filled chamber between the armature and valve needle. As a result, on the one hand anchor bouncers from the lower anchor stopper and the other hand valve needle bouncers are effectively damped from the sealing seat.
  • The measures listed in the dependent claims advantageous developments of the fuel injection valve specified in the main claim are possible.
  • The throttle effect of the throttle gap between valve needle and armature wall, in particular, is advantageous which is pressed during the closing movement of fuel from the annulus.
  • drawing
  • Embodiments of the invention are shown in simplified form in the drawing and explained in more detail in the following description. Show it:
  • Fig. 1
    FIG. 2 is a schematic section through an example of a prior art armature debounce fuel injector; FIG.
    Fig. 2
    an enlarged view of a first embodiment of the fuel injection valve according to the invention in the area II in Fig. 1,
    Fig. 3
    a view of a second embodiment of the fuel injection valve according to the invention in the same area as in Fig. 2, and
    Fig. 4
    a view of a third embodiment of the fuel injection valve according to the invention in the same area as in Fig. 2 and 3.
    Description of the embodiments
  • 2 to 4 embodiments of a fuel injection valve 1 according to the invention will be briefly explained for better understanding of the invention with reference to FIG. 1, apart from the inventive measures identical fuel injector according to the prior art with respect to its essential components.
  • The fuel injection valve 1 is in the form of a fuel injection valve for fuel injection systems of mixture-compression, spark-ignited Internal combustion engine running. The fuel injection valve 1 is suitable in particular for the direct injection of fuel into a combustion chamber, not shown, of an internal combustion engine.
  • The fuel injection valve 1 consists of a nozzle body 2, in which a valve needle 3 is arranged. The valve needle 3 is in operative connection with a valve closing body 4, which cooperates with a arranged on a valve seat body 5 valve seat surface 6 to a sealing seat. The fuel injection valve 1 in the exemplary embodiment is an inwardly opening fuel injection valve 1 which has an injection opening 7. The nozzle body 2 is sealed by a seal 8 against the outer pole 9 of a magnetic coil 10. The magnetic coil 10 is encapsulated in a coil housing 11 and wound on a bobbin 12, which rests against an inner pole 13 of the magnetic coil 10. The inner pole 13 and, the outer pole 9 are separated by a constriction 26 and are connected to each other by a non-ferromagnetic connecting member 29. The magnetic coil 10 is energized via a line 19 from a via an electrical plug contact 17 can be supplied with electric current. The plug contact 17 is surrounded by a plastic casing 18, which may be molded on the inner pole 13.
  • The valve needle 3 is guided in a valve needle guide 14, which is designed disk-shaped. On the other side of the dial 15 is an armature 20. This is frictionally connected via a first flange 21 with the valve needle 3 in connection, which is connected by a weld 22 to the first flange 21. On the flange 21, a return spring 23 is supported, which is brought in the present design of the fuel injection valve 1 by a sleeve 24 to bias. Run in the valve needle guide 14, the armature 20 and the valve seat body 5 Fuel channels 30a to 30c, which conduct the fuel, which is supplied via a central fuel supply 16 and filtered by a filter element 25, to the ejection opening 7. The fuel injection valve 1 is sealed by a seal 28 against a fuel line, not shown.
  • On the discharge side of the armature 20, an annular damping element 32, which consists of an elastomer material, arranged. It rests on a second flange 31 which is non-positively connected to the valve needle 3 via a weld 33.
  • In the manufacture of the consisting of armature 20 and valve needle 3 component, the first flange 21 is welded to the valve needle 3, the armature 20 and the damping element 32 attached and then the second flange 31 pressed under pressure on the damping element 32 and also with the valve needle. 3 welded. In this way, the armature 20 has only a slight, strongly damped play between the first flange 21 and the damping element 32nd
  • In the idle state of the fuel injection valve 1, the armature 20 is acted upon by the return spring 23 counter to its stroke direction so that the valve closing body 4 is held on the valve seat 6 in sealing engagement. Upon energization of the magnetic coil 10, this builds up a magnetic field, which moves the armature 20 against the spring force of the return spring 23 in the stroke direction, wherein the stroke is determined by a located in the rest position between the inner pole 13 and the armature 20 working gap 27. The armature 20 takes the flange 21, which is welded to the valve needle 3, also in the stroke direction with. The valve closing body 4 communicating with the valve needle 3 lifts off from the valve seat surface 6 and the fuel guided via the fuel channels 30a to 30c is sprayed through the injection opening 7.
  • If the coil current is turned off, the armature 20 drops after sufficient degradation of the magnetic field by the pressure of the return spring 23 from the inner pole 13, whereby the standing with the valve needle 3 in connection flange 21 moves against the stroke direction. The valve needle 3 is thereby moved in the same direction, whereby the valve closing body 4 touches on the valve seat surface 6 and the fuel injection valve is 1.geschlossen.
  • In this phase, the bouncers occur, which on the one hand by the armature 20, which falls off in the Abspritzrichtung of the fuel injection valve 1 from the inner pole 13, and on the other by the valve needle 3 and the sealing seat placed on the valve closing body 4 are caused.
  • Fig. 2 shows an excerpted sectional view of the designated in Fig. 1 with II section of the fuel injector 1. Matching components are provided with matching reference numerals.
  • Compared with the fuel injection valve 1 according to the prior art described in Fig. 1, the present first embodiment of a fuel injection valve 1 according to the invention on a discharge side 42 of the armature 20 an inner annular projection 34 and a funnel-shaped recess 35. The fuel channel 30a opens into the funnel-shaped recess 35. The annular projection 34, which is penetrated by the valve needle 3 in a central recess 38 of the armature 20, is supported on the damping element 32 and thus on the second flange 31, which is materially connected via the weld 33 with the valve needle 3.
  • The second flange 31 has an annular recess 36, in which the damping element 32 is arranged and which is covered cover-like by the annular projection 34. The annular projection 34 lies here on the damping element 32. The annular recess 36 has an inner edge 43 facing the valve needle 3 and a radially outer edge 44 which is axially higher than the inner edge 43. As a result, the annular projection 34 closes the annular recess 36 to the outside, while in the idle state of the fuel injection valve 1 between the edge 43 and the projection 34, an axial gap 45 remains. In the annular recess 36 a radially through the valve needle 3 and the damping element 32 limited annular space 37 is formed. The annular space 37 is filled with fuel, which flows via the acting as a throttle central recess 38 of the armature 20 into the annular space 37.
  • As soon as the valve closing body 4 touches down on the valve seat surface 6 when closing the fuel injection valve 1, the armature 20, which is arranged movably on the valve needle 3, oscillates. Usually, this swinging leads to a renewed movement of the armature 20 in the stroke direction, which can lead to a brief, undesirable further opening operation of the fuel injection valve 1, as this also the valve needle 3 is moved again in the stroke direction. This is prevented by the fuel contained in the annular space 37 and the damping element 32 in two ways.
  • On the one hand, the fuel in the annular space 37 is compressed by the initially opposing movements of the armature 20 and the valve needle 3. The armature 20 can swing through only to the point at which the gap 45 between the edge 43 and the projection 34 of the armature 20 is closed. Due to the closed shape of the annular space 37, the fuel can leave the annular space 37 only through the throttle gap 39 acting as a throttle between an inner wall 40 of the armature 20 and the valve needle 3. As a result, on the one hand, the movement of the armature 20 and on the other hand, the Rückschwingbewegung the valve needle 3 is attenuated. On the other hand, in particular the Rückschwingbewegung of the armature 20 by the damping element 32, which is arranged in the annular recess 36, effectively damped, since the damping element 32 converts most of the kinetic energy of the armature 20 in the deformation energy of the damping element 32 and because in the Rückschwingbewegung a negative pressure in the annular space 37 is formed.
  • FIG. 3 shows in the same view as FIG. 2 a second exemplary embodiment of the fuel injection valve 1 according to the invention.
  • In this embodiment, the second flange 31 is provided with a deeper annular recess 36 than in the previous embodiment. The outer edge 44 of the second flange 31 is increased while the inner edge 43 is absent. A lower end 46 of the supernatant 34 of the armature 20 is formed so that the damping element 32 is disposed radially between the thin end 46 of the supernatant 34 and the edge 44 of the second flange 31, wherein between the lower end 46 of the supernatant 34 and the second flange 45 is formed an axial gap. With the same outside diameter of the second flange 31 as in FIG. 2, the effective damping volume, which in this case is arranged below the damping element 32, is thereby increased.
  • In particular, it comes in the second embodiment of the fuel injection valve 1 according to the invention is not so much to an accurate and accurate production or obstruction of the individual components, whereby the production and installation of the components can be made cheaper.
  • In the mode of operation, the second embodiment of the fuel injection valve 1 according to the invention is similar to the first embodiment shown in FIG. When closing the fuel injection valve 1, the armature 20 swings through, whereby the damping element 32 and the fuel in the annular space 37 are compressed by the projection 34 of the armature 20. The armature 20 can only so far swing through until the lower end 46 of the projection 34 impinges on the second flange 31. The damping element 32 absorbs most of the kinetic energy of the armature 20, while the fuel displaced from the annular space 37 exits through the throttle gap 39 between the valve needle 3 and the inner wall 40 of the armature 20, whereby the swinging of the valve needle 3 is decelerated and the valve closing body 4 is prevented from again briefly withdraw from the valve seat surface 6.
  • The illustrated in Fig. 4 third embodiment of the fuel injection valve 1 according to the invention differs slightly in construction from the two previous embodiments. Instead of the annular projection 34 of the armature 20 forms a cap-shaped cover sleeve 41, on which the projection 34 of the armature 20 is supported, the annular recess 36. The annular recess 36 is open in the third embodiment in the outflow direction of the fuel. The second flange 31 is formed flat here and closes the annular recess 36 in the form of a cover in the outflow direction. The cover sleeve 41 has the particular advantage that it can be produced particularly easily as a separate component independently of the armature 20.
  • In the annular recess 36 of the cover 41, the damping element 32 is arranged, the annular space 37 is as in the previous embodiments with the throttle gap 39 between the inner wall 40 of the armature 20 and the valve needle 3 in connection. The components of the third embodiment have the advantage that on the one hand they are particularly easy to produce and on the other hand, the armature 20 can be designed so that the introduced in the armature 20 fuel passage 30a can be easily processed and deburred on its downstream side.
  • When closing the fuel injection valve 1, the armature 20 in turn oscillates in Abspritzrichtung, whereby the cap-shaped cover sleeve 41 via the second flange 31st is pushed, since the outer diameter of the flange 31 corresponds to the inner diameter of the jacket portion of the cover sleeve 41 and is minimally smaller. In the present embodiment, advantageously, the gap 45 need not be limited by a particular geometric arrangement as in the embodiments described above, but in this case is equal to the height of the annulus 37. The lying between the cover 41 and the second flange 31 damping element 32 and the existing fuel in the annular space 37 are compressed by the movement, the damping element 32 absorbs the kinetic energy of the armature 20, while the fuel from the annular space 37 in the throttle gap 39 between the valve needle 3 and the inner wall 40 of the armature 20 is displaced. Due to the viscosity of the fuel or the throttling action of the throttle gap 39, the swinging through of the valve needle 3 is damped.
  • The invention is not limited to the illustrated embodiments and e.g. also suitable for flat anchors or for any designs of fuel injection valves.

Claims (12)

  1. Fuel injection valve (1), in particular fuel injection valve for fuel injection systems of internal combustion engines, with a valve needle (3), the valve-closing body (4) of which co-operates with a valve-seat surface (6) to form a sealing seat, and with an armature (20) acting on the valve needle (3), the armature (20) being arranged axially movably on the valve needle (3) and being damped by a damping element (32) which consists of an elastomer and which is arranged between a flange (31) connected non-positively to the valve needle (3) and the armature (20), characterized in that the flange (31) has formed on it an annular depression (36) in which the damping element (32) is arranged, and in that an annular space (37), which is filled with fuel, is formed between the valve needle (3) and the damping element (32), the annular space (37) being connected to a throttle gap (39) of the valve needle (3).
  2. Fuel injection valve according to Claim 1, characterized in that the throttle gap (39) is formed between the valve needle (3) and an inner wall (40) of the armature (20).
  3. Fuel injection valve according to Claim 1 or 2, characterized in that a circularly annular projection (34) of the armature (20) covers the annular depression (36).
  4. Fuel injection valve according to Claim 3, characterized in that the projection (34) of the armature (20) lies on the damping element (32) arranged in the annular depression (36).
  5. Fuel injection valve according to one of Claims 1 to 4, characterized in that the armature (20) has, on an outflow side (42), a funnel-shaped recess (35), into which issues a fuel duct (30a) penetrating through the armature (20).
  6. Fuel injection valve according to one of Claims 1 to 5, characterized in that an inner edge (43), facing the valve needle (3), of the flange (31) is lower than an outer edge (44) of the flange (32).
  7. Fuel injection valve according to Claim 6, characterized in that a gap (45) is formed between the inner edge (43) and a projection (34) of the armature (20).
  8. Fuel injection valve according to Claim 7, characterized in that the gap (45) is connected to the throttle gap (39).
  9. Fuel injection valve according to one of Claims 4, 7 or 8, characterized in that the projection (34) has a lower end (46), the diameter of which is smaller than the diameter of the flange (31).
  10. Fuel injection valve according to Claim 9, characterized in that the damping element (32) is tension-mounted radially between the lower end (46) of the projection (34) and the flange (31).
  11. Fuel injection valve (1), in particular fuel injection valve for fuel injection systems of internal combustion engines, with a valve needle (3), the valve-closing body (4) of which co-operates with a valve-seat surface (6) to form a sealing seat, and with an armature (20) acting on the valve needle (3), the armature (20) being axially movably arranged on the valve needle (3) and being damped by a damping element (32) which consists of an elastomer and which is arranged between a flange (31) connected non-positively to the valve needle (3) and the armature (20), characterized in that a circularly annular projection (34) is provided on the armature (20), and the projection (34) is supported on a covering sleeve (41) which is designed in the form of a cap with an annular depression (36) and is penetrated by the valve needle (3), and the flange (31) has a flat disc-shaped design, the damping element (32) being arranged in the annular depression (36), and in that an annular space (37), which is filled with fuel, is formed between the valve needle (3) and the damping element (32), the annular space (37) being connected to a throttle gap (39) at the valve needle (3).
  12. Fuel injection valve according to Claim 11, characterized in that the flange (31) has an outside diameter which corresponds to the inside diameter of the covering sleeve (41).
EP01964937A 2000-09-01 2001-08-25 Fuel injection valve Expired - Fee Related EP1315900B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE10043085 2000-09-01
DE10043085A DE10043085A1 (en) 2000-09-01 2000-09-01 Fuel injector
PCT/DE2001/003266 WO2002018776A1 (en) 2000-09-01 2001-08-25 Fuel injection valve

Publications (2)

Publication Number Publication Date
EP1315900A1 EP1315900A1 (en) 2003-06-04
EP1315900B1 true EP1315900B1 (en) 2006-05-03

Family

ID=7654627

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01964937A Expired - Fee Related EP1315900B1 (en) 2000-09-01 2001-08-25 Fuel injection valve

Country Status (8)

Country Link
US (1) US6745993B2 (en)
EP (1) EP1315900B1 (en)
JP (1) JP2004507661A (en)
KR (1) KR20020044177A (en)
CN (1) CN1255627C (en)
CZ (1) CZ20021505A3 (en)
DE (2) DE10043085A1 (en)
WO (1) WO2002018776A1 (en)

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DE10256948A1 (en) * 2002-12-05 2004-06-24 Robert Bosch Gmbh Fuel injector
JP4038462B2 (en) * 2003-09-11 2008-01-23 三菱電機株式会社 Fuel injection valve
JP4064934B2 (en) * 2004-02-27 2008-03-19 三菱重工業株式会社 Solenoid valve device
DE102004024533A1 (en) * 2004-05-18 2005-12-15 Robert Bosch Gmbh Fuel injector
CN100389258C (en) * 2004-06-02 2008-05-21 株式会社电装 Fuel injection valve
DE102004037250B4 (en) * 2004-07-31 2014-01-09 Robert Bosch Gmbh Fuel injector
US7900604B2 (en) * 2005-06-16 2011-03-08 Siemens Diesel Systems Technology Dampening stop pin
JP4428357B2 (en) * 2006-04-03 2010-03-10 株式会社デンソー Fuel injection valve
JP4988750B2 (en) * 2006-09-25 2012-08-01 日立オートモティブシステムズ株式会社 Fuel injection valve
DE102006052817A1 (en) * 2006-11-09 2008-05-15 Robert Bosch Gmbh Fuel injection valve for e.g. direct injection of fuel into combustion chamber of internal combustion engine, has valve seat body and closing body provided with rigidity-reducing element that is designed as recess i.e. circulating groove
US8556194B2 (en) * 2010-06-23 2013-10-15 Delphi Technologies, Inc. Fuel injector
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US8534639B1 (en) * 2012-04-18 2013-09-17 HUSCO Automotive Holdings, Inc. Solenoid valve with a digressively damped armature
EP3076004B1 (en) * 2015-04-02 2018-09-12 Continental Automotive GmbH Valve assembly with a particle retainer element and fluid injection valve
DE102015213216A1 (en) * 2015-07-15 2017-01-19 Robert Bosch Gmbh Valve for metering a fluid
US10731614B2 (en) * 2015-10-15 2020-08-04 Continental Automotive Gmbh Fuel injection valve with an anti bounce device
DE102017207845A1 (en) * 2017-05-10 2018-11-15 Robert Bosch Gmbh Valve for metering a fluid
US20190093038A1 (en) * 2017-09-22 2019-03-28 Leonard Ortiz System for Gasification on Demand

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Also Published As

Publication number Publication date
DE50109710D1 (en) 2006-06-08
WO2002018776A1 (en) 2002-03-07
EP1315900A1 (en) 2003-06-04
CZ20021505A3 (en) 2003-10-15
CN1255627C (en) 2006-05-10
KR20020044177A (en) 2002-06-14
JP2004507661A (en) 2004-03-11
CN1388862A (en) 2003-01-01
DE10043085A1 (en) 2002-03-14
US20030146400A1 (en) 2003-08-07
US6745993B2 (en) 2004-06-08

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