WO2015118861A1 - 燃料噴射弁 - Google Patents

燃料噴射弁 Download PDF

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Publication number
WO2015118861A1
WO2015118861A1 PCT/JP2015/000491 JP2015000491W WO2015118861A1 WO 2015118861 A1 WO2015118861 A1 WO 2015118861A1 JP 2015000491 W JP2015000491 W JP 2015000491W WO 2015118861 A1 WO2015118861 A1 WO 2015118861A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel injection
injection valve
housing
internal combustion
combustion engine
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.)
Ceased
Application number
PCT/JP2015/000491
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
辰介 山本
伊藤　栄次
栄二 三村
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.)
Denso Corp
Original Assignee
Denso Corp
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 Denso Corp filed Critical Denso Corp
Priority to US15/111,294 priority Critical patent/US10030620B2/en
Priority to DE112015000668.0T priority patent/DE112015000668B4/de
Priority to CN201580006854.3A priority patent/CN105960524B/zh
Publication of WO2015118861A1 publication Critical patent/WO2015118861A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of 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
    • 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
    • F02M51/0685—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 and the valve being allowed to move relatively to each other or not being attached to each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/85—Mounting of fuel injection apparatus
    • F02M2200/858—Mounting of fuel injection apparatus sealing arrangements between injector and engine

Definitions

  • the present disclosure relates to a fuel injection valve that directly injects fuel into an internal combustion engine (hereinafter referred to as “engine”).
  • Patent Document 1 describes a fuel injection valve in which a portion serving as a rotation center is provided in the vicinity of an injection hole so as to be able to perform a rotational movement in accordance with a displacement of a delivery pipe relative to a cylinder head.
  • the fuel injection valve provided between the delivery pipe and the cylinder head is assembled to the cylinder head via a tolerance ring that allows a deviation of the assembly position when the cylinder head and the fuel injection valve are assembled.
  • the cylinder head is expanded by the heat of combustion in the internal combustion engine, and the delivery pipe is contracted by the relatively low temperature fuel flowing through the delivery pipe. For this reason, the position of the delivery pipe with respect to the cylinder head aligned at the time of assembly is shifted, and the delivery pipe for connecting the fuel introduction pipe for introducing the fuel into the fuel injection valve is connected to the portion of the cylinder head to which the injection portion having the injection hole is connected. The distance to the part changes.
  • the fuel injection valve described in Patent Literature 1 rotates around the vicinity of the injection hole when the position of the delivery pipe with respect to the cylinder head is deviated. Therefore, if the change in the distance is large, the fuel injection valve may not be able to cope with it and may be deformed. In addition, when the change in the distance is not allowed in the tolerance ring, the fuel injection valve may be deformed to deteriorate the injection characteristics of the fuel injection valve.
  • An object of the present disclosure is to provide a fuel injection valve that prevents deterioration of fuel injection characteristics.
  • one aspect of the present disclosure is a fuel injection valve that directly injects fuel into a combustion chamber of an internal combustion engine, and is capable of reciprocating in the axial direction of the housing having an injection hole.
  • the needle which is accommodated in the housing, opens and closes the nozzle hole, the coil, the fixed core, the movable core, and the assembly position between the housing and the internal combustion engine.
  • a displacement allowing member, and a friction reducing portion provided between the internal combustion engine and the displacement allowing member.
  • the friction reduction unit reduces friction between the internal combustion engine and the displacement allowance member, and allows movement in a direction perpendicular to the axial direction of the housing.
  • the fuel injection valve according to this aspect includes a friction reduction unit that reduces the friction between the deviation allowing member and the internal combustion engine between the deviation allowing member and the internal combustion engine. If a deformable force acts on the fuel injection valve due to the displacement of the delivery pipe relative to the internal combustion engine during actual use of the fuel injection valve, the fuel injection valve of this aspect moves in a direction perpendicular to the axial direction of the housing.
  • vertical refers not only to the vertical in a strict sense but also to an angle relationship that can be recognized as being perpendicular to the axial direction of the housing by visual inspection.
  • FIG. 3A is a schematic diagram for explaining the positional relationship between a cylinder head and a delivery pipe during assembly and actual use of the fuel injection valve according to the first embodiment.
  • FIG. 3B shows the positional relationship when the engine is driven in a relatively low temperature environment.
  • FIG. 6 is an enlarged view of a part VI in FIG. 5. It is sectional drawing of the fuel injection valve by 3rd Embodiment. It is the VIII section enlarged view of FIG.
  • FIG. 1 and 2 show a fuel injection valve 1 according to a first embodiment.
  • the fuel injection valve 1 is provided in the cylinder head 100 of the engine 10 as an “internal combustion engine”, and directly injects gasoline as fuel flowing through the delivery pipe 90 into a cylinder (not shown) of the engine 10 as a “combustion chamber”.
  • FIG. 1 illustrates a valve opening direction in which the needle 30 is separated from the valve seat 243 and a valve closing direction in which the needle 30 is in contact with the valve seat 243.
  • the fuel injection valve 1 includes a housing 20, a needle 30, a movable core 37, a fixed core 38, a coil 39, springs 26 and 28, a tolerance ring 40 as a “displacement allowing member”, a washer 45 as a “friction reducing portion”, and the like. Prepare.
  • the housing 20 includes a first cylinder member 21, a second cylinder member 22, a third cylinder member 23, and an injection nozzle 24, as shown in FIG.
  • the first cylinder member 21, the second cylinder member 22, and the third cylinder member 23 are all formed in a substantially cylindrical shape, and are coaxial in the order of the first cylinder member 21, the second cylinder member 22, and the third cylinder member 23. Arranged and connected to each other.
  • the first cylinder member 21 and the third cylinder member 23 are made of a magnetic material such as ferritic stainless steel and subjected to a magnetic stabilization process.
  • the second cylindrical member 22 is formed of a nonmagnetic material such as austenitic stainless steel, for example.
  • the injection nozzle 24 is provided at the end of the first cylinder member 21 opposite to the second cylinder member 22.
  • the injection nozzle 24 is formed in a bottomed cylindrical shape with a metal such as martensitic stainless steel.
  • the injection nozzle 24 is formed of an injection part 241 and a cylinder part 242.
  • the injection unit 241 has a plurality of injection holes 25 that communicate the inside and the outside of the housing 20.
  • An annular valve seat 243 is formed at the edge of the inner opening which is the opening on the inner side of the housing 20 of the nozzle hole 25.
  • the cylinder part 242 is formed in a substantially cylindrical shape.
  • the cylinder part 242 is connected to the radially outer side of the injection part 241 and is provided between the injection part 241 and the first cylinder member 21.
  • the needle 30 is made of a metal such as martensitic stainless steel.
  • the needle 30 is subjected to a quenching process so as to be approximately equal to the hardness of the injection nozzle 24.
  • the needle 30 is accommodated in the housing 20.
  • the needle 30 includes a shaft portion 31, a seal portion 32, a large diameter portion 33, and the like.
  • the shaft portion 31, the seal portion 32, and the large diameter portion 33 are integrally formed.
  • the shaft portion 31 is formed in a cylindrical rod shape.
  • a sliding contact portion 35 is formed in the vicinity of the seal portion 32 of the shaft portion 31.
  • the sliding contact portion 35 is formed in a substantially cylindrical shape, and a part of the outer wall 351 is chamfered.
  • the portion of the outer wall 351 that is not chamfered can be in sliding contact with the inner wall of the cylindrical portion 242 of the injection nozzle 24.
  • the needle 30 is guided to reciprocate at the tip portion on the valve seat 243 side.
  • a hole 311 that connects the inner wall and the outer wall of the shaft portion 31 is formed in the shaft portion 31.
  • the seal portion 32 is provided at the end portion of the shaft portion 31 on the valve seat 243 side, and can contact the valve seat 243.
  • the needle 30 opens and closes the nozzle hole 25 when the seal portion 32 is separated from the valve seat 243 or abuts against the valve seat 243, and communicates or blocks the inside and outside of the housing 20.
  • the large diameter portion 33 is provided on the opposite side of the shaft portion 31 from the seal portion 32.
  • the large diameter portion 33 is formed such that its outer diameter is larger than the outer diameter of the shaft portion 31.
  • An end surface of the large diameter portion 33 on the valve seat 243 side is in contact with the movable core 37.
  • the sliding contact portion 35 is supported by the inner wall of the injection nozzle 24, and the shaft portion 31 is supported by the inner wall of the second cylindrical member 22 via the movable core 37, while the interior of the housing 20 is axially directed to the housing 20. Move back and forth.
  • the movable core 37 is formed in a substantially cylindrical shape with a magnetic material such as ferritic stainless steel, for example, and the surface is plated with, for example, chrome.
  • the movable core 37 is subjected to a magnetic stabilization process.
  • the hardness of the movable core 37 is relatively low and is substantially equal to the hardness of the first cylinder member 21 and the third cylinder member 23.
  • a through hole 372 is formed in the approximate center of the movable core 37. The shaft portion 31 is inserted through the through hole 372.
  • the fixed core 38 is formed in a substantially cylindrical shape by a magnetic material such as ferritic stainless steel.
  • the fixed core 38 is subjected to a magnetic stabilization process.
  • the hardness of the fixed core 38 is substantially equal to the hardness of the movable core 37, but in order to ensure the function as a stopper of the movable core 37, for example, chrome plating is applied to the surface to ensure the necessary hardness.
  • the fixed core 38 is welded to the third cylindrical member 23 and is provided so as to be fixed inside the housing 20.
  • the coil 39 is formed in a substantially cylindrical shape, and is provided so as to mainly surround the second cylinder member 22 and the third cylinder member 23 in the radial direction.
  • the coil 39 generates a magnetic force when electric power is supplied.
  • a magnetic force is generated in the coil 39, a magnetic circuit is formed in the fixed core 38, the movable core 37, the first cylindrical member 21, and the third cylindrical member 23.
  • a magnetic attractive force is generated between the fixed core 38 and the movable core 37, and the movable core 37 is attracted to the fixed core 38.
  • the needle 30 in contact with the surface of the movable core 37 opposite to the valve seat 243 side moves together with the movable core 37 in the stationary core 38 side, that is, in the valve opening direction.
  • the spring 26 is provided so that one end is in contact with the spring contact surface 331 of the large diameter portion 33. The other end of the spring 26 is in contact with one end of the adjusting pipe 11 that is press-fitted and fixed inside the fixed core 38.
  • the spring 26 has a force that extends in the axial direction of the housing 20. Thereby, the spring 26 urges the needle 30 together with the movable core 37 in the direction of the valve seat 243, that is, in the valve closing direction.
  • the spring 28 is provided so that one end is in contact with the step 371 of the movable core 37.
  • the other end of the spring 28 is in contact with an annular step surface 211 formed inside the first cylinder member 21.
  • the spring 28 has a force that extends in the axial direction of the housing 20.
  • the spring 28 urges the movable core 37 together with the needle 30 in the direction opposite to the valve seat 243, that is, in the valve opening direction.
  • the urging force of the spring 26 is set larger than the urging force of the spring 28.
  • the substantially cylindrical fuel introduction pipe 12 is press-fitted and welded to the end of the third cylinder member 23 opposite to the second cylinder member 22.
  • a filter 13 is provided inside the fuel introduction pipe 12. The filter 13 collects foreign matters contained in the fuel that has flowed from the introduction port 14 of the fuel introduction pipe 12.
  • the mold introduction part 15 formed from resin is provided on the radially outer side of the fuel introduction pipe 12 and the third cylinder member 23.
  • a connector 151 on the outer side in the radial direction of the mold part 15 is formed.
  • a terminal 16 for supplying power to the coil 39 is insert-molded in the connector 151.
  • a cylindrical first holder 17 is provided outside the coil 39 in the radial direction so as to cover the coil 39.
  • the fuel injection valve 1 is provided between the cylinder head 100 and the delivery pipe 90 as shown in FIG.
  • the first cylinder member 21 side of the fuel injection valve 1 is inserted into the through hole 101 of the cylinder head 100.
  • the tapered surface 171 of the first holder 17 is in contact with the inner wall 102 that forms the through hole 101 via the tolerance ring 40 and the washer 45.
  • a “friction reducing portion” for reducing friction and a lubricating film 452 as “lubricating coating” are formed on the first abutting surface 451 that abuts on the tolerance ring 40 of the washer 45. Further, on the second abutting surface 453 that abuts against the inner wall 102 of the cylinder head 100 of the washer 45, a “friction reducing portion” for reducing friction and a lubricating film 454 as “lubricating coating” are formed. Airtightness in the through hole 101 of the cylinder of the engine 10 is maintained by an annular seal member 41 provided on the radially outer side of the end portion of the first cylinder member 21 on the injection nozzle 24 side.
  • the fuel introduction pipe 12 side of the fuel injection valve 1 is inserted into a flow passage 911 included in the connection portion 91 of the delivery pipe 90.
  • liquid tightness of the flow passage 911 is maintained by the annular seal member 42 provided on the radially outer side of the fuel introduction pipe 12.
  • a second holder 19 that contacts the delivery pipe 90 while supporting the mold part 15 is provided on the outer side in the radial direction of the mold part 15 and on the side opposite to the connector 151.
  • the end portion 191 of the second holder 19 on the delivery pipe 90 side is in contact with the end surface 912 of the connection portion 91 on the engine 10 side.
  • the fuel supplied by the delivery pipe 90 includes the introduction port 14, the radially inward direction of the fixed core 38, the inside of the adjusting pipe 11, the inside of the large diameter portion 33 and the shaft portion 31,
  • the gas flows through a gap between the one cylinder member 21 and the shaft portion 31 of the needle 30 and is guided into the injection nozzle 24. That is, from the inlet 14 to the gap between the first cylinder member 21 and the shaft portion 31 of the needle 30 is a fuel passage 18 for introducing fuel into the injection nozzle 24.
  • FIG. 3 is a diagram schematically showing the positional relationship between the cylinder head 100, the plurality of fuel injection valves, and the delivery pipe 90.
  • the plurality of fuel injection valves are shown in FIG.
  • the fuel injection valves 6, 7, 8 are assumed from the left side.
  • the cylinder head 100, the fuel injection valves 6, 7, 8 and the delivery pipe 90 are assembled, the plurality of fuel injection valves 6, 7, 8 are in relation to the cylinder head 100. It is assembled at a predetermined position. At this time, the displacement of the fuel injection valve 1 with respect to the cylinder head 100 and the delivery pipe 90 is corrected by the tolerance ring 40.
  • the cylinder head 100 becomes high temperature due to combustion in the cylinder, so that it extends in the direction of the white arrow D1. Inflate.
  • the delivery pipe 90 contracts so as to contract in the direction of the white arrow D2 because the gasoline flowing inside is at a low temperature. For this reason, a displacement occurs between the cylinder head 100 and the delivery pipe 90.
  • the fuel injection valve 6 that is substantially in the center with respect to the cylinder head 100 and the delivery pipe 90 is a cylinder. It is not easily affected by the expansion of the head 100 or the contraction of the delivery pipe 90, and no force that tilts the central axis ⁇ 6 of the fuel injection valve 6 acts. However, a force acts on the fuel injection valve 5 on the left side of the fuel injection valve 6 so that the central axis ⁇ 5 is inclined toward the fuel injection valve 6. In addition, a force acts on the fuel injection valve 7 on the right side of the fuel injection valve 6 so that the central axis ⁇ 7 is inclined toward the fuel injection valve 6.
  • the surface where the cylinder head and the tolerance ring come into contact with each other is the cylinder head due to the load from the delivery pipe by the second holder and the fuel pressure that is the pressure of the fuel supplied to the fuel injection valve. Is pressed against the inner wall of the through hole. This pressing increases a frictional force between the tolerance ring and the cylinder head, and it becomes difficult to move the fuel injection valve with respect to the cylinder head, particularly in a direction perpendicular to the central axis of the housing.
  • “vertical” refers not only to the vertical in a strict sense but also to an angle relationship that can be recognized as being perpendicular to the axial direction of the housing by visual inspection. For this reason, a force in a direction different from the central axis direction of the fuel injection valve acts on the fuel injection valve due to the displacement between the cylinder head and the delivery pipe, and the injection characteristics of the fuel injection valve are deteriorated.
  • Fig. 4 shows the experimental results regarding the relationship between the lateral load at which the fuel injection valve can move relative to the cylinder head and the fuel pressure.
  • the experimental result indicating the relationship between the lateral load and the fuel pressure in the fuel injection valve 1 according to the first embodiment is indicated by symbol ⁇ , and a washer is provided between the tolerance ring and the cylinder head as a comparative example.
  • the experimental results showing the relationship between the lateral load and the fuel pressure in the non-fuel injection valve are indicated by the symbol x.
  • the lateral load at which the fuel injection valve 1 according to the first embodiment can move at the same fuel pressure is It has been clarified that the fuel injection valve of the comparative example becomes smaller than the lateral load that enables movement. That is, the fuel injection valve according to the first embodiment can skid with a small load even when the fuel pressure increases as compared with the fuel injection valve of the comparative example.
  • the fuel injection valve 1 is easily moved relative to the cylinder head 100 by the washer 45 provided between the tolerance ring 40 and the cylinder head 100. Thereby, the force acting on the fuel injection valve 1 due to the displacement between the cylinder head 100 and the delivery pipe 90 is released by the movement of the fuel injection valve 1 with respect to the cylinder head 100, and the fuel injection valve 1 is prevented from being deformed by the force. To do. Therefore, it is possible to prevent the fuel injection characteristic of the fuel injection valve 1 from being deteriorated due to the deformation of the fuel injection valve 1. Moreover, damage to the fuel injection valve 1 can be prevented.
  • the second embodiment differs from the first embodiment in the number of washers.
  • symbol is attached
  • the fuel injection valve 2 is provided with two washers 55 and 56 as “friction reducing portions” between the tolerance ring 40 and the inner wall 102 of the cylinder head 100.
  • a “friction reducing portion” and a lubricating film 552 as “lubricating coating” are formed on the first contact surface 551 that contacts the tolerance ring 40 of the washer 55.
  • a lubricant film 562 as a “friction reducing portion” and a “lubricating coating” is formed on the second contact surface 561 that contacts the inner wall 102 of the cylinder head 100 of the washer 56.
  • the cylinder head 100 when the cylinder head 100 is made of soft aluminum as compared to the tolerance ring 40 made of stainless steel, it depends on the fuel pressure of the fuel supplied by the delivery pipe 90 and the load from the delivery pipe 90 by the second holder 19.
  • the inner wall 102 of the cylinder head 100 that contacts the washer 56 may be deformed, and the washer 56 may be buried.
  • the washer 55 tends to slip sideways.
  • the fuel injection valve 2 according to the second embodiment further prevents the fuel injection characteristic of the fuel injection valve 2 from being deteriorated due to the displacement of the cylinder head 100 and the delivery pipe 90 even if the cylinder head 100 is deformed. be able to.
  • a fuel injection valve according to a third embodiment will be described with reference to FIGS.
  • the third embodiment is different from the first embodiment in that a lubricating film is formed on the tolerance ring.
  • symbol is attached
  • a tolerance ring 40 is provided between the first holder 17 and the cylinder head 100.
  • a “friction reducing portion” and a lubricating film 402 as “lubricating coating” are formed.
  • the fuel injection valve 3 is easily moved with respect to the cylinder head 100 by the lubricating film 402 formed between the tolerance ring 40 and the cylinder head 100.
  • 3rd Embodiment has the same effect as 1st Embodiment.
  • the lubricant film is formed on the first contact surface and the second contact surface of the washer.
  • the lubricating film is formed on the first contact surface of the washer on the tolerance ring side and the second contact surface of the washer on the cylinder head side.
  • the lubricant film may not be formed on these contact surfaces.
  • one washer is provided.
  • two washers are provided.
  • the number of washers provided is not limited to this. There may be no washer as in the third embodiment, or three or more may be provided.
  • the present disclosure is not limited to such an embodiment, and can be implemented in various forms without departing from the gist thereof.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)
PCT/JP2015/000491 2014-02-05 2015-02-04 燃料噴射弁 Ceased WO2015118861A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US15/111,294 US10030620B2 (en) 2014-02-05 2015-02-04 Fuel injection valve
DE112015000668.0T DE112015000668B4 (de) 2014-02-05 2015-02-04 Kraftstoffeinspritzventil
CN201580006854.3A CN105960524B (zh) 2014-02-05 2015-02-04 燃料喷射阀

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-020475 2014-02-05
JP2014020475A JP6260316B2 (ja) 2014-02-05 2014-02-05 燃料噴射弁

Publications (1)

Publication Number Publication Date
WO2015118861A1 true WO2015118861A1 (ja) 2015-08-13

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Family Applications (1)

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PCT/JP2015/000491 Ceased WO2015118861A1 (ja) 2014-02-05 2015-02-04 燃料噴射弁

Country Status (5)

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US (1) US10030620B2 (enExample)
JP (1) JP6260316B2 (enExample)
CN (1) CN105960524B (enExample)
DE (1) DE112015000668B4 (enExample)
WO (1) WO2015118861A1 (enExample)

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JP2010138809A (ja) * 2008-12-11 2010-06-24 Denso Corp 燃料噴射弁の取付け構造
JP2010159726A (ja) * 2009-01-09 2010-07-22 Denso Corp 燃料噴射弁の取付け構造
JP2010185323A (ja) * 2009-02-11 2010-08-26 Denso Corp 燃料噴射弁の取付け構造およびそれに用いる燃料噴射弁の座金
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Publication number Priority date Publication date Assignee Title
JP2003227434A (ja) * 2002-01-31 2003-08-15 Denso Corp 分配型燃料噴射ポンプ
JP2008516133A (ja) * 2004-10-09 2008-05-15 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 燃料噴射弁に用いられる減衰エレメント
JP2010138809A (ja) * 2008-12-11 2010-06-24 Denso Corp 燃料噴射弁の取付け構造
JP2010159726A (ja) * 2009-01-09 2010-07-22 Denso Corp 燃料噴射弁の取付け構造
JP2010185323A (ja) * 2009-02-11 2010-08-26 Denso Corp 燃料噴射弁の取付け構造およびそれに用いる燃料噴射弁の座金
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JP2011196293A (ja) * 2010-03-23 2011-10-06 Hitachi Automotive Systems Ltd 燃料噴射弁

Also Published As

Publication number Publication date
US20160333838A1 (en) 2016-11-17
US10030620B2 (en) 2018-07-24
DE112015000668T5 (de) 2016-10-27
JP6260316B2 (ja) 2018-01-17
CN105960524A (zh) 2016-09-21
JP2015148164A (ja) 2015-08-20
CN105960524B (zh) 2019-01-08
DE112015000668B4 (de) 2023-12-07

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