JP2009092187A - Solenoid valve - Google Patents

Solenoid valve Download PDF

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Publication number
JP2009092187A
JP2009092187A JP2007265359A JP2007265359A JP2009092187A JP 2009092187 A JP2009092187 A JP 2009092187A JP 2007265359 A JP2007265359 A JP 2007265359A JP 2007265359 A JP2007265359 A JP 2007265359A JP 2009092187 A JP2009092187 A JP 2009092187A
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Prior art keywords
valve body
armature
stopper
movable member
valve
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JP2007265359A
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JP4835571B2 (en
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Kohei Kuno
耕平 久野
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Denso Corp
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Denso Corp
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Priority to JP2007265359A priority Critical patent/JP4835571B2/en
Priority to DE200810041794 priority patent/DE102008041794A1/en
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    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/34—Varying fuel delivery in quantity or timing by throttling of passages to pumping elements or of overflow passages, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0008—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using mechanically actuated valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing

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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)
  • Magnetically Actuated Valves (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To restrain sliding resistance between a valve body and a movable member by influence of magnetic side force, in a solenoid valve in which an armature and a valve element are integrated. <P>SOLUTION: The movable member 110 is reciprocatably stored and held in the valve body 100, and has the armature 112 stored in the body 100 in an unsliding state, the valve element 111 arranged on one end side of the armature 112 and opening-closing a flow passage, and a stopper 113 arranged on the other end side of the armature 112. The armature 112, the valve element 111 and the stopper 113 are integrated. Since the valve element 111 and the stopper 113 sliding with the body 100 are arranged on both sides of the armature 112, even if the armature 112 receives the magnetic side force, the movable member 110 does not inclines, and since the gap partial presence a suction force generating point in the armature 112 is restrained up to a sliding part clearance, and the influence of the magnetic side force is reduced. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、アーマチャと弁体が一体化された電磁弁に関する。   The present invention relates to an electromagnetic valve in which an armature and a valve body are integrated.

従来より、例えばディーゼルエンジン用燃料噴射システムとして知られるコモンレール式燃料噴射システムでは、コモンレール内に高圧燃料を蓄え、このコモンレール内に蓄えられた高圧燃料をインジェクタを介して内燃機関の各気筒の燃焼室内に噴射供給するように構成されている。コモンレールには燃料の噴射圧力に相当する高圧燃料を常時蓄える必要があるために、低圧ポンプにて燃料を高圧ポンプに供給し、高圧ポンプにて燃料を加圧し高圧化して高圧燃料をコモンレールに供給するように構成されている。   Conventionally, for example, in a common rail fuel injection system known as a fuel injection system for a diesel engine, high pressure fuel is stored in the common rail, and the high pressure fuel stored in the common rail is stored in the combustion chamber of each cylinder of the internal combustion engine via the injector. It is comprised so that it may inject and supply to. Since it is necessary to always store high-pressure fuel equivalent to the fuel injection pressure in the common rail, the fuel is supplied to the high-pressure pump by the low-pressure pump, and the high-pressure pump is pressurized and pressurized to supply the high-pressure fuel to the common rail. Is configured to do.

ここで、低圧ポンプから高圧ポンプに至る燃料経路の流路開口面積を電磁弁にて調整することにより、高圧ポンプに供給される燃料の量、ひいては高圧ポンプから吐出される燃料の量を調整するようになっている（例えば、特許文献１参照）。   Here, the amount of fuel supplied to the high-pressure pump, and hence the amount of fuel discharged from the high-pressure pump, is adjusted by adjusting the flow path opening area of the fuel path from the low-pressure pump to the high-pressure pump with a solenoid valve. (For example, refer to Patent Document 1).

図４は、特許文献１に記載された電磁弁であり、この電磁弁は、バルブボディ１００内で往復動する可動部材１１０を備えている。そして、この可動部材１１０は、バルブボディ１００に非摺動状態で収納されて磁路を形成するアーマチャ１１２と、バルブボディ１００に摺動自在に保持されて流路を開閉する弁体１１１とが一体化されている。
特開２００２−１０６７４０号公報 FIG. 4 is an electromagnetic valve described in Patent Document 1. This electromagnetic valve includes a movable member 110 that reciprocates within the valve body 100. The movable member 110 includes an armature 112 that is housed in the valve body 100 in a non-sliding state to form a magnetic path, and a valve body 111 that is slidably held by the valve body 100 and opens and closes the flow path. It is integrated.
JP 2002-106740 A

しかしながら、特許文献１に記載された電磁弁は、以下のような問題がある。図４において、ａはアーマチャ１１２において吸引力が発生する点（以下、吸引力発生点という）であり、アーマチャ１１２においてステータ部１０２側の端部近傍の部位である。ｂは可動部材１１０が傾く際の支点であり、弁体１１１の摺動面のうちステータ部１０２側の端部である。   However, the electromagnetic valve described in Patent Document 1 has the following problems. In FIG. 4, “a” is a point where an attractive force is generated in the armature 112 (hereinafter, referred to as an attractive force generating point), and is a portion in the vicinity of the end on the stator portion 102 side in the armature 112. b is a fulcrum when the movable member 110 is inclined, and is an end of the sliding surface of the valve body 111 on the stator portion 102 side.

そして、可動部材１１０は磁気サイドフォースによる偏荷重を受けて傾き、吸引力発生点ａにおけるギャップ（すなわち、可動部材１１０とステータ部１０２との間の径方向のクリアランス）の偏りが発生する。換言すると、可動部材１１０が傾くことにより、吸引力発生点ａにおいては、その周方向の一部はギャップが大きくなり、周方向の反対側部位ではギャップが小さくなる。このギャップの偏りにより磁気サイドフォースが増加し、バルブボディ１００と弁体１１１との間の摺動抵抗が増加する。   Then, the movable member 110 is tilted by receiving a biased load due to the magnetic side force, and a gap in the suction force generation point a (that is, a radial clearance between the movable member 110 and the stator portion 102) is generated. In other words, when the movable member 110 is inclined, at the suction force generation point a, a gap is increased at a part of the circumferential direction, and the gap is decreased at a portion opposite to the circumferential direction. The bias of the gap increases the magnetic side force, and the sliding resistance between the valve body 100 and the valve body 111 increases.

ここで、吸引力発生点ａにおけるギャップの偏り（すなわち、最大ギャップと最小ギャップの差）をΔＧ、バルブボディ１００と弁体１１１との径方向の摺動部クリアランスをＣ、弁体１１１の摺動面の長さをＬ１、弁体１１１の摺動面における反ステータ部側の端部から吸引力発生点ａまでの長さをＬ２とすると、ΔＧ＝Ｃ×Ｌ２／Ｌ１である。すなわち、ギャップの偏りΔＧは、摺動部クリアランスＣよりも大きくなる。   Here, the deviation of the gap at the suction force generation point a (that is, the difference between the maximum gap and the minimum gap) is ΔG, the radial sliding portion clearance between the valve body 100 and the valve body 111 is C, and the sliding of the valve body 111 is ΔG = C × L2 / L1, where L1 is the length of the moving surface and L2 is the length from the end of the sliding surface of the valve body 111 on the side opposite to the stator to the suction force generation point a. That is, the gap deviation ΔG is larger than the sliding portion clearance C.

本発明は上記点に鑑みて、アーマチャと弁体が一体化された電磁弁において、磁気サイドフォースの影響によるバルブボディと可動部材との間の摺動抵抗を抑制することを目的とする。   In view of the above points, an object of the present invention is to suppress sliding resistance between a valve body and a movable member due to the influence of a magnetic side force in an electromagnetic valve in which an armature and a valve body are integrated.

本発明は、バルブボディ（１００）に往復動自在に収納・保持される可動部材（１１０）は、バルブボディ（１００）に非摺動状態で収納されて磁路を形成するアーマチャ（１１２）と、このアーマチャ（１１２）の一端側に配置され、バルブボディ（１００）に摺動自在に保持されて流路を開閉する弁体（１１１）と、アーマチャ（１１２）の他端側に配置され、バルブボディ（１００）に摺動自在に保持されたストッパ（１１３）とを備え、アーマチャ（１１２）、弁体（１１１）、およびストッパ（１１３）が一体化されていることを特徴とする。   According to the present invention, a movable member (110) that is housed and held reciprocally in a valve body (100) is housed in a non-sliding state in the valve body (100) to form an armature (112). , Disposed on one end side of the armature (112), slidably held on the valve body (100) and opened and closed to the flow path, and disposed on the other end side of the armature (112), The valve body (100) includes a stopper (113) slidably held, and the armature (112), the valve body (111), and the stopper (113) are integrated.

このようにすれば、バルブボディ（１００）と摺動する弁体（１１１）およびストッパ（１１３）がアーマチャ（１１２）の両側に配置されているため、アーマチャ（１１２）が磁気サイドフォースを受けた場合、弁体（１１１）およびストッパ（１１３）は周方向において同一の位置でバルブボディ（１００）に当接する。したがって、アーマチャ（１１２）が磁気サイドフォースを受けても可動部材（１１０）は傾かず、アーマチャ（１１２）における吸引力発生点のギャップ偏りは摺動部クリアランスまでで抑えられる。   In this way, since the valve body (111) and the stopper (113) sliding with the valve body (100) are arranged on both sides of the armature (112), the armature (112) has received the magnetic side force. In this case, the valve body (111) and the stopper (113) contact the valve body (100) at the same position in the circumferential direction. Therefore, even if the armature (112) receives the magnetic side force, the movable member (110) does not tilt, and the gap deviation of the suction force generation point in the armature (112) can be suppressed up to the sliding portion clearance.

すなわち、従来の電磁弁においては、前述したようにアーマチャにおける吸引力発生点のギャップ偏りは摺動部クリアランスよりも大きくなるのに対し、本発明では、アーマチャ（１１２）における吸引力発生点のギャップ偏りは摺動部クリアランスまでで抑えられるため、磁気サイドフォースの影響によるバルブボディ（１００）と可動部材（１１０）との間の摺動抵抗を抑制することができる。   That is, in the conventional solenoid valve, the gap bias of the suction force generation point in the armature becomes larger than the sliding portion clearance as described above, whereas in the present invention, the gap of the suction force generation point in the armature (112). Since the bias is suppressed up to the sliding portion clearance, the sliding resistance between the valve body (100) and the movable member (110) due to the influence of the magnetic side force can be suppressed.

この場合、弁体（１１１）およびストッパ（１１３）を非磁性材料製にすれば、摺動部品である弁体（１１１）およびストッパ（１１３）の磁束が弱まり、弁体（１１１）およびストッパ（１１３）に磁性異物が吸着されにくくなるため、異物による摺動不良を防止することができる。   In this case, if the valve body (111) and the stopper (113) are made of a nonmagnetic material, the magnetic flux of the valve body (111) and the stopper (113), which are sliding parts, is weakened, and the valve body (111) and the stopper (113) 113), it is difficult for magnetic foreign matters to be adsorbed, and sliding failure due to foreign matters can be prevented.

また、可動部材（１１０）を付勢するスプリング（１３０）を備える場合、弁体（１１１）およびストッパ（１１３）のうちスプリング（１３０）が当接する部材を、焼き入れ処理もしくは冷間加工された鉄系材料とすることができる。   Further, when the spring (130) for urging the movable member (110) is provided, the member of the valve body (111) and the stopper (113) with which the spring (130) abuts is subjected to quenching or cold processing. It can be an iron-based material.

このようにすれば、従来の電磁弁のように軟磁性材料よりなるアーマチャ（１１２）にスプリング（１３０）が当接する場合よりも、スプリング（１３０）が当接する部材の摩耗が抑制される。   In this way, the wear of the member with which the spring (130) abuts is suppressed as compared with the case where the spring (130) abuts against the armature (112) made of a soft magnetic material like a conventional electromagnetic valve.

また、弁体（１１１）に対して、アーマチャ（１１２）およびストッパ（１１３）を接合することができる。   Further, the armature (112) and the stopper (113) can be joined to the valve body (111).

このようにすれば、摺動部品である弁体（１１１）とストッパ（１１３）の同軸度（データム軸直線と同一直線上にあるべき軸線のデータム軸直線からの狂いの大きさ）を容易に小さくすることができる。さらに、アーマチャ（１１２）とストッパ（１１３）とを接合する場合は、アーマチャ（１１２）における吸引力発生点近傍にて両者が接合されることになり、その結果、接合時の塑性変形等により吸引力発生点付近に残留応力が発生し、アーマチャ（１１２）の磁気特性が低下するのに対し、弁体（１１１）とアーマチャ（１１２）とを接合する場合は、アーマチャ（１１２）における吸引力発生点から離れた位置で両者を接合することができるため、アーマチャ（１１２）の磁気特性の低下を防止することができる。   In this way, the coaxiality of the valve body (111) and the stopper (113) that are sliding parts (the magnitude of the deviation from the datum axis straight line of the axis that should be on the same straight line as the datum axis straight line) can be easily achieved. Can be small. Further, when the armature (112) and the stopper (113) are joined, they are joined in the vicinity of the suction force generation point in the armature (112), and as a result, suction is caused by plastic deformation or the like at the time of joining. Residual stress is generated in the vicinity of the force generation point, and the magnetic characteristics of the armature (112) are deteriorated. On the other hand, when the valve body (111) and the armature (112) are joined, the attractive force is generated in the armature (112). Since both of them can be joined at a position away from the point, it is possible to prevent deterioration of the magnetic characteristics of the armature (112).

この場合、弁体（１１１）は、バルブボディ（１００）に摺動自在に保持される弁体大径部（１１１ａ）と、この弁体大径部（１１１ａ）よりも小径の弁体小径部（１１１ｂ）とを備え、アーマチャ（１１２）は、円筒状にして弁体小径部（１１１ｂ）の外周側に配置し、ストッパ（１１３）は、弁体小径部（１１１ｂ）の端部に配置し、アーマチャ（１１２）およびストッパ（１１３）を、弁体（１１１）に対して圧入することにより、弁体（１１１）に対してアーマチャ（１１２）およびストッパ（１１３）を接合することができる。   In this case, the valve body (111) includes a valve body large-diameter portion (111a) that is slidably held by the valve body (100), and a valve body small-diameter portion having a smaller diameter than the valve body large-diameter portion (111a). (111b), the armature (112) is cylindrical and disposed on the outer peripheral side of the valve body small diameter part (111b), and the stopper (113) is disposed on the end of the valve body small diameter part (111b). The armature (112) and the stopper (113) can be joined to the valve body (111) by press-fitting the armature (112) and the stopper (113) into the valve body (111).

また、弁体（１１１）とアーマチャ（１１２）を同一部材とし、ストッパ（１１３）を非磁性材料製とすることができる。   Further, the valve body (111) and the armature (112) can be made of the same member, and the stopper (113) can be made of a nonmagnetic material.

このようにすれば、部品点数低減によりコストを削減しながら、吸引力発生点のギャップ偏りを抑え、吸引力発生点付近で磁束の集中しているストッパ（１１３）部の磁性異物の吸着を防ぐことができる。   In this way, while reducing costs by reducing the number of parts, the gap deviation of the suction force generation point is suppressed, and the magnetic foreign matter at the stopper (113) portion where the magnetic flux is concentrated near the suction force generation point is prevented. be able to.

なお、特許請求の範囲およびこの欄で記載した各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示すものである。   In addition, the code | symbol in the bracket | parenthesis of each means described in a claim and this column shows the correspondence with the specific means as described in embodiment mentioned later.

本発明の一実施形態について説明する。図１は本発明の一実施形態に係る電磁弁を用いたコモンレール式燃料噴射システムの全体構成を示す図である。   An embodiment of the present invention will be described. FIG. 1 is a diagram showing an overall configuration of a common rail fuel injection system using a solenoid valve according to an embodiment of the present invention.

図１に示すように、燃料噴射システムは、高圧燃料が蓄圧される蓄圧器１を備え、この蓄圧器１には複数のインジェクタ２が接続されている。インジェクタ２は、制御装置（以下、ＥＣＵという）３に制御されて所定の時期に所定の期間開弁して、蓄圧器１から供給される高圧燃料をディーゼルエンジン（図示せず）の各気筒内に噴射する。ここでは、４気筒エンジンの１つに対応するインジェクタ２のみを示し、他の気筒に対応するインジェクタについては図示を省略している。   As shown in FIG. 1, the fuel injection system includes a pressure accumulator 1 that accumulates high-pressure fuel, and a plurality of injectors 2 are connected to the pressure accumulator 1. The injector 2 is controlled by a control device (hereinafter referred to as ECU) 3 and opens at a predetermined time for a predetermined period, and the high pressure fuel supplied from the pressure accumulator 1 is supplied to each cylinder of a diesel engine (not shown). To spray. Here, only the injector 2 corresponding to one of the four-cylinder engines is shown, and illustration of the injectors corresponding to the other cylinders is omitted.

蓄圧器１に蓄圧される高圧燃料は、高圧通路４を介して燃料供給手段Ｐから供給される。燃料供給手段Ｐは、燃料を加圧して蓄圧器１に吐出する高圧ポンプ、燃料タンク５からフィルタ６を介して吸入した燃料を高圧ポンプへ供給する低圧ポンプ、および、この低圧ポンプから高圧ポンプへ供給される燃料の流量を調整する吸入調量弁を備えている。高圧ポンプは、燃料の吸入量が調整されることにより燃料の吐出量が調整される形式のポンプである。吸入調量弁の詳細については後述する。なお、吸入調量弁は本発明の電磁弁に相当する。   The high pressure fuel stored in the pressure accumulator 1 is supplied from the fuel supply means P via the high pressure passage 4. The fuel supply means P is a high-pressure pump that pressurizes the fuel and discharges it to the accumulator 1, a low-pressure pump that supplies fuel sucked from the fuel tank 5 through the filter 6, and a low-pressure pump to the high-pressure pump. An intake metering valve for adjusting the flow rate of the supplied fuel is provided. The high pressure pump is a type of pump in which the fuel discharge amount is adjusted by adjusting the fuel intake amount. Details of the intake metering valve will be described later. The intake metering valve corresponds to the electromagnetic valve of the present invention.

インジェクタ２には、インジェクタ２からのリーク燃料を燃料タンク５へ戻すための戻し燃料通路７が接続されている。また、燃料供給手段Ｐには、燃料供給手段Ｐからのリーク燃料を燃料タンク５へ戻すための戻し燃料通路８が接続されている。   A return fuel passage 7 for returning leaked fuel from the injector 2 to the fuel tank 5 is connected to the injector 2. The fuel supply means P is connected to a return fuel passage 8 for returning the leaked fuel from the fuel supply means P to the fuel tank 5.

ＥＣＵ３は、図示しないＣＰＵ、ＲＯＭ、ＲＡＭ等からなる周知のマイクロコンピュータを備え、マイクロコンピュータに記憶したプログラムに従って演算処理を行うものである。ＥＣＵ３には、蓄圧器１内の圧力を検出する燃料圧センサ９からの信号が入力されるとともに、各種センサＳからエンジン回転数、アクセル開度等の種々の情報が随時入力される。   The ECU 3 includes a known microcomputer including a CPU, ROM, RAM, and the like (not shown), and performs arithmetic processing according to a program stored in the microcomputer. A signal from a fuel pressure sensor 9 that detects the pressure in the pressure accumulator 1 is input to the ECU 3, and various information such as the engine speed and the accelerator opening is input from various sensors S as needed.

そして、ＥＣＵ３は、エンジンや車両の運転状態に応じた最適の噴射時期、噴射量（噴射期間）を算出して、各インジェクタ２の開弁時期および開弁期間を制御する。また、ＥＣＵ３は、燃料供給手段Ｐの目標吐出量を算出して燃料供給手段Ｐの吸入調量弁に制御信号を出力し、燃料供給手段Ｐの吐出量を制御することにより、蓄圧器１内の燃料圧力（所謂コモンレール圧力）を制御する。   The ECU 3 calculates the optimal injection timing and injection amount (injection period) according to the operating state of the engine and the vehicle, and controls the valve opening timing and valve opening period of each injector 2. Further, the ECU 3 calculates the target discharge amount of the fuel supply means P, outputs a control signal to the intake metering valve of the fuel supply means P, and controls the discharge amount of the fuel supply means P, thereby controlling the inside of the pressure accumulator 1. The fuel pressure (so-called common rail pressure) is controlled.

図２は図１の燃料供給手段Ｐにおける吸入調量弁を示す断面図である。この図２に示すように、吸入調量弁１０は、有底円筒状のバルブボディ１００を備えている。このバルブボディ１００は、可動部材１１０（詳細後述）を摺動自在に収容・保持する円筒状の収容部１０１と、磁路形成のための有底円筒状のステータ部１０２とを備え、収容部１０１とステータ部１０２との間には薄肉部１０３が設けられている。バルブボディ１００は、ステータ部１０２をステータとして機能させるために、その材質をフェライト系ステンレス等の軟磁性材料としている。また、収容部１０１の内周面にニッケル燐メッキ等の硬化層を施して、耐摩耗性の向上および表面硬さの向上を図っている。   FIG. 2 is a cross-sectional view showing an intake metering valve in the fuel supply means P of FIG. As shown in FIG. 2, the suction metering valve 10 includes a bottomed cylindrical valve body 100. The valve body 100 includes a cylindrical accommodating portion 101 that slidably accommodates and holds a movable member 110 (described later in detail), and a bottomed cylindrical stator portion 102 for forming a magnetic path. A thin portion 103 is provided between 101 and the stator portion 102. The valve body 100 is made of a soft magnetic material such as ferritic stainless steel so that the stator portion 102 functions as a stator. In addition, a hardened layer such as nickel phosphorous plating is applied to the inner peripheral surface of the housing portion 101 to improve wear resistance and surface hardness.

収容部１０１の一端には、低圧ポンプから燃料が送り込まれる入口側ポート１０４が形成されている。収容部１０１の側壁には、高圧ポンプに接続される環状の出口側溝１０５と、この出口側溝１０５と収容部１０１の内部とを連通させる軸方向に細長いスリット形状の調量溝１０６が形成されている。   An inlet-side port 104 into which fuel is sent from a low pressure pump is formed at one end of the accommodating portion 101. An annular outlet side groove 105 connected to the high-pressure pump and an axially elongated slit-shaped metering groove 106 that connects the outlet side groove 105 and the inside of the accommodating part 101 are formed on the side wall of the accommodating part 101. Yes.

ステータ部１０２の円筒状部および薄肉部１０３の外周側には、通電時に磁界を形成するコイル１２０が配置されており、このコイル１２０への通電により可動部材１１０がステータ部１０２側に吸引されるようになっている。ステータ部１０２の内側には、可動部材１１０を反吸引向きに付勢するスプリング１３０が配置されている。   A coil 120 that forms a magnetic field when energized is arranged on the outer peripheral side of the cylindrical portion and the thin portion 103 of the stator portion 102, and the movable member 110 is attracted to the stator portion 102 side by energizing the coil 120. It is like that. A spring 130 that urges the movable member 110 in the anti-suction direction is disposed inside the stator portion 102.

可動部材１１０は、バルブボディ１１０に摺動自在に保持されて調量溝１０６の流路開口面積を調整する円筒状の弁体１１１と、バルブボディ１１０に非摺動状態で収納されて磁路を形成する円筒状のアーマチャ１１２と、バルブボディ１１０に摺動自在に保持されたリング状のストッパ１１３とを備えている。   The movable member 110 is slidably held by the valve body 110 and adjusts the flow path opening area of the metering groove 106, and is accommodated in the valve body 110 in a non-sliding state. And a ring-shaped stopper 113 slidably held by the valve body 110.

弁体１１１は、オーステナイト系ステンレス等の非磁性材料よりなり、バルブボディ１００の収容部１０１に摺動自在に保持される弁体大径部１１１ａと、この弁体大径部１１１ａよりも小径の弁体小径部１１１ｂとを備えている。弁体大径部１１１ａと弁体小径部１１１ｂは、弁体１１１の軸方向に沿って直列に配置され、弁体小径部１１１ｂが弁体大径部１１１ａよりもステータ部１０２側に位置している。   The valve body 111 is made of a nonmagnetic material such as austenitic stainless steel, and has a valve body large-diameter portion 111a that is slidably held in the accommodating portion 101 of the valve body 100, and a diameter smaller than that of the valve body large-diameter portion 111a. And a valve body small diameter portion 111b. The valve body large-diameter portion 111a and the valve body small-diameter portion 111b are arranged in series along the axial direction of the valve body 111, and the valve body small-diameter portion 111b is located closer to the stator portion 102 than the valve body large-diameter portion 111a. Yes.

弁体大径部１１１ａには、調量溝１０６と連通可能な環状の弁体部溝１１１ｃと、この弁体部溝１１１ｃと弁体大径部１１１ａの内部とを連通させる弁体部穴１１１ｄが形成されている。また、弁体大径部１１１ａの内部は、入口側ポート１０４に常時連通している。   The valve body large diameter portion 111a has an annular valve body portion groove 111c that can communicate with the metering groove 106, and a valve body portion hole 111d that allows the valve body portion groove 111c and the inside of the valve body large diameter portion 111a to communicate with each other. Is formed. Further, the inside of the valve body large diameter portion 111 a is always in communication with the inlet side port 104.

そして、可動部材１１０の移動位置に応じて弁体部溝１１１ｃと調量溝１０６との連通面積が変化し、これにより、調量溝１０６の流路開口面積が調整される。なお、可動部材１１０は、バルブボディ１００の入口側ポート１０４側に圧入固定された円環状の止め輪１０６によって初期位置が規定されている。図２の状態では、可動部材１１０はスプリング１３０に付勢されて止め輪１０６に当接していて、調量溝１０６の流路開口面積は最大になっている。   Then, the communication area between the valve body groove 111c and the metering groove 106 changes according to the moving position of the movable member 110, whereby the flow path opening area of the metering groove 106 is adjusted. The initial position of the movable member 110 is defined by an annular retaining ring 106 that is press-fitted and fixed to the inlet side port 104 side of the valve body 100. In the state of FIG. 2, the movable member 110 is biased by the spring 130 and is in contact with the retaining ring 106, and the flow passage opening area of the metering groove 106 is maximized.

アーマチャ１１２は、純鉄等の軟磁性材料よりなり、弁体小径部１１１ａの外周側に配置されている。また、アーマチャ１１２は、アーマチャ１１２における弁体大径部１１１ａ側に、すなわち、アーマチャ１１２における吸引力発生点から離れた位置に、圧入部となる圧入用円筒部１１２ａが形成されている。そして、圧入用円筒部１１２ａが弁体小径部１１１ａに圧入されて、弁体１１１とアーマチャ１１２が一体化されている。   The armature 112 is made of a soft magnetic material such as pure iron, and is disposed on the outer peripheral side of the valve body small-diameter portion 111a. Further, the armature 112 is formed with a press-fitting cylindrical portion 112 a serving as a press-fitting portion on the valve body large-diameter portion 111 a side of the armature 112, that is, at a position away from the suction force generation point in the armature 112. The press-fitting cylindrical portion 112a is press-fitted into the valve body small diameter portion 111a, and the valve body 111 and the armature 112 are integrated.

ストッパ１１３は、オーステナイト系ステンレス等の非磁性材料よりなり、弁体小径部１１１ａの外周側で、且つアーマチャ１１２よりもステータ部１０２側に配置されている。また、ストッパ１１３は、弁体小径部１１１ａに圧入されて弁体１１１と一体化されている。   The stopper 113 is made of a nonmagnetic material such as austenitic stainless steel, and is disposed on the outer peripheral side of the valve body small-diameter portion 111a and on the stator portion 102 side with respect to the armature 112. The stopper 113 is press-fitted into the valve body small diameter portion 111 a and integrated with the valve body 111.

弁体大径部１１１ａの外径とストッパ１１３の外径は同径であり、弁体大径部１１１ａとストッパ１１３はバルブボディ１１０と摺動する。また、アーマチャ１１２の外径は弁体大径部１１１ａやストッパ１１３の外径よりも小径であり、バルブボディ１１０とは摺動しないようになっている。   The outer diameter of the valve body large diameter portion 111 a and the outer diameter of the stopper 113 are the same, and the valve body large diameter portion 111 a and the stopper 113 slide with the valve body 110. Further, the outer diameter of the armature 112 is smaller than the outer diameter of the valve body large diameter portion 111 a and the stopper 113, and does not slide with the valve body 110.

スプリング１３０は、その一端が弁体小径部１１１ａにおけるステータ部１０２側の端部に当接し、他端がステータ部１０２に当接している。なお、スプリング１３０の一端が、ストッパ１１３に当接するようにしてもよい。   One end of the spring 130 is in contact with the end of the valve body small diameter portion 111 a on the stator portion 102 side, and the other end is in contact with the stator portion 102. Note that one end of the spring 130 may abut against the stopper 113.

上記構成になる吸入調量弁１０は、コイル１２０に電圧が印可されるとアーマチャ１１２が電磁力によってステータ部１０２側に吸引され、可動部材１１０がステータ部１０２側に移動する。そして、コイル１２０に供給される電流がＥＣＵ３によって制御されることにより電磁力が制御され、その電磁力に応じて可動部材１１０の位置が連続的に変化し、調量溝１０６の流路開口面積は電流値に応じた開口面積に調整される。具体的には、コイル１２０に供給される電流が増加するのに伴って調量溝１０６の流路開口面積が減少し、高圧ポンプへ供給される燃料の流量が減少し、高圧ポンプから蓄圧器１へ吐出される燃料の量が減少する。   In the intake metering valve 10 configured as described above, when a voltage is applied to the coil 120, the armature 112 is attracted to the stator unit 102 side by electromagnetic force, and the movable member 110 moves to the stator unit 102 side. The electromagnetic force is controlled by controlling the current supplied to the coil 120 by the ECU 3, and the position of the movable member 110 is continuously changed according to the electromagnetic force. Is adjusted to an opening area corresponding to the current value. Specifically, as the current supplied to the coil 120 increases, the flow passage opening area of the metering groove 106 decreases, the flow rate of fuel supplied to the high pressure pump decreases, and the accumulator from the high pressure pump. The amount of fuel discharged to 1 is reduced.

ここで、バルブボディ１００と摺動する弁体１１１およびストッパ１１３がアーマチャ１１２の両側に配置されているため、アーマチャ１１２が磁気サイドフォースを受けた場合、弁体１１１およびストッパ１１３は周方向において同一の位置でバルブボディ１００に当接する。したがって、アーマチャ１１２が磁気サイドフォースを受けても可動部材１１０は傾かず、アーマチャ１１２における吸引力発生点のギャップ偏りは摺動部クリアランスまでで抑えられるため、磁気サイドフォースの影響によるバルブボディ１００と可動部材１１０との間の摺動抵抗を抑制することができる。   Here, since the valve body 111 and the stopper 113 sliding with the valve body 100 are disposed on both sides of the armature 112, when the armature 112 receives a magnetic side force, the valve body 111 and the stopper 113 are the same in the circumferential direction. It contacts the valve body 100 at the position. Therefore, even when the armature 112 receives the magnetic side force, the movable member 110 does not tilt, and the gap deviation of the suction force generation point in the armature 112 can be suppressed up to the sliding portion clearance. Sliding resistance with the movable member 110 can be suppressed.

また、摺動部品である弁体１１１およびストッパ１１３は非磁性材料からなるため、弁体１１１およびストッパ１１３は磁束が弱まって磁性異物が吸着されにくくなり、異物による摺動不良を防止することができる。   Further, since the valve body 111 and the stopper 113 which are sliding parts are made of a non-magnetic material, the magnetic flux is weakened in the valve body 111 and the stopper 113 so that the magnetic foreign matter is not easily adsorbed, and sliding failure due to the foreign matter can be prevented. it can.

また、弁体１１１に対してアーマチャ１１２およびストッパ１１３が接合されているため、換言すると、弁体１１１とストッパ１１３は他の部材を介さずに接合されているため、弁体１１１とストッパ１１３の同軸度を容易に小さくすることができる。   In addition, since the armature 112 and the stopper 113 are joined to the valve body 111, in other words, the valve body 111 and the stopper 113 are joined without interposing other members. The degree of coaxiality can be easily reduced.

また、弁体１１１とアーマチャ１１２は、アーマチャ１１２における吸引力発生点から離れた位置で接合されているため、吸引力発生点付近に残留応力が発生せず、アーマチャ１１２の磁気特性の低下を防止することができる。   Further, since the valve body 111 and the armature 112 are joined at a position away from the suction force generation point in the armature 112, no residual stress is generated in the vicinity of the suction force generation point, thereby preventing deterioration of the magnetic characteristics of the armature 112. can do.

（他の実施形態）
上記実施形態では、弁体１１１およびストッパ１１３をオーステナイト系ステンレス等の非磁性材料としたが、図３に示す変形例のように、弁体１１１に対してアーマチャ１１２を磁性材料の同一部材とし、ストッパ１１３のみ非磁性材料としてもよい。この場合、部品点数低減によりコストを削減しながら、吸引力発生点のギャップ偏りを抑え、吸引力発生点付近で磁束の集中しているストッパ１１３部の磁性異物の吸着を防ぐことができる。 (Other embodiments)
In the above embodiment, the valve body 111 and the stopper 113 are made of a non-magnetic material such as austenitic stainless steel. However, as in the modification shown in FIG. Only the stopper 113 may be made of a nonmagnetic material. In this case, while reducing the cost by reducing the number of parts, it is possible to suppress the gap deviation of the suction force generation point and to prevent the magnetic foreign matter from being attracted to the stopper 113 portion where the magnetic flux is concentrated near the suction force generation point.

また、弁体１１１およびストッパ１１３のうちスプリング１３０が当接する部材は、オーステナイト系ステンレス等の非磁性材料を冷間加工したものや、焼き入れ処理された鉄系材料（例えば、マルテンサイト系ステンレス、クロムモリブデン鋼）にて形成してもよい。このようにすれば、スプリング１３０が当接する部材の摩耗が抑制される。   Further, among the valve body 111 and the stopper 113, the member with which the spring 130 abuts is a cold-worked non-magnetic material such as austenitic stainless steel, or a hardened iron-based material (for example, martensitic stainless steel, (Chromium molybdenum steel). In this way, wear of the member with which the spring 130 abuts is suppressed.

また、弁体１１１およびストッパ１１３の表面には、耐摩耗性の向上、摩擦力の低減のために必要に応じて表面処理（ＮｉＰメッキ、ＤＬＣなど）や熱処理（軟窒化など）により薄い硬化層を設けてもよい。   Further, a thin hardened layer is formed on the surfaces of the valve body 111 and the stopper 113 by surface treatment (NiP plating, DLC, etc.) or heat treatment (soft nitriding, etc.) as necessary to improve wear resistance and reduce frictional force. May be provided.

本発明の一実施形態に係る電磁弁を用いたコモンレール式燃料噴射システムの全体構成を示す図である。It is a figure showing the whole common rail type fuel injection system composition using a solenoid valve concerning one embodiment of the present invention. 図１の燃料供給手段Ｐにおける電磁弁（吸入調量弁）を示す断面図である。It is sectional drawing which shows the solenoid valve (suction metering valve) in the fuel supply means P of FIG. 本発明に係る電磁弁の変形例を示す断面図である。It is sectional drawing which shows the modification of the solenoid valve which concerns on this invention. 従来の電磁弁を示す断面図である。It is sectional drawing which shows the conventional solenoid valve.

符号の説明Explanation of symbols

１００…バルブボディ、１１０…可動部材、１１１…弁体、１１２…アーマチャ、１１３…ストッパ、１２０…コイル。   DESCRIPTION OF SYMBOLS 100 ... Valve body, 110 ... Movable member, 111 ... Valve body, 112 ... Armature, 113 ... Stopper, 120 ... Coil

Claims (6)

通電時に磁界を形成するコイル（１２０）と、このコイル（１２０）への通電により一方の向きに吸引されて流路を開閉する可動部材（１１０）と、この可動部材（１１０）を往復動自在に収納・保持するバルブボディ（１００）とを備える電磁弁であって、
前記可動部材（１１０）は、前記バルブボディ（１００）に非摺動状態で収納されて磁路を形成するアーマチャ（１１２）と、このアーマチャ（１１２）の一端側に配置され、前記バルブボディ（１００）に摺動自在に保持されて前記流路を開閉する弁体（１１１）と、前記アーマチャ（１１２）の他端側に配置され、前記バルブボディ（１００）に摺動自在に保持されたストッパ（１１３）とを備え、前記アーマチャ（１１２）、前記弁体（１１１）、および前記ストッパ（１１３）が一体化されていることを特徴とする電磁弁。 A coil (120) that forms a magnetic field when energized, a movable member (110) that is attracted in one direction by energizing the coil (120) to open and close the flow path, and the movable member (110) can reciprocate freely. A solenoid valve comprising a valve body (100) to be stored and held in
The movable member (110) is disposed in a non-sliding state in the valve body (100) to form a magnetic path, and is disposed on one end side of the armature (112). 100) is slidably held by the valve body (111) that opens and closes the flow path, and is disposed on the other end side of the armature (112), and is slidably held by the valve body (100). A solenoid valve comprising a stopper (113), wherein the armature (112), the valve body (111), and the stopper (113) are integrated. 前記弁体（１１１）および前記ストッパ（１１３）は、非磁性材料からなることを特徴とする請求項１に記載の電磁弁。 The solenoid valve according to claim 1, wherein the valve body (111) and the stopper (113) are made of a nonmagnetic material. 前記弁体（１１１）および前記ストッパ（１１３）のうちいずれか一方に当接して前記可動部材（１１０）を付勢するスプリング（１３０）を備え、
前記弁体（１１１）および前記ストッパ（１１３）のうち前記スプリング（１３０）が当接する部材は、焼き入れ処理もしくは冷間加工された鉄系材料からなることを特徴とする請求項１または２に記載の電磁弁。 A spring (130) that abuts on one of the valve body (111) and the stopper (113) and biases the movable member (110);
The member which the said spring (130) contact | abuts among the said valve body (111) and the said stopper (113) consists of an iron-type material by which the quenching process or the cold work was carried out, The Claim 1 or 2 characterized by the above-mentioned. The solenoid valve described. 前記弁体（１１１）に対して、前記アーマチャ（１１２）および前記ストッパ（１１３）が接合されていることを特徴とする請求項１ないし３のいずれか１つに記載の電磁弁。 The solenoid valve according to any one of claims 1 to 3, wherein the armature (112) and the stopper (113) are joined to the valve body (111). 前記弁体（１１１）は、前記バルブボディ（１００）に摺動自在に保持される弁体大径部（１１１ａ）と、この弁体大径部（１１１ａ）よりも小径の弁体小径部（１１１ｂ）とを備え、
前記アーマチャ（１１２）は、円筒状であり、前記弁体小径部（１１１ｂ）の外周側に配置され、
前記ストッパ（１１３）は、前記弁体小径部（１１１ｂ）の端部に配置され、
前記アーマチャ（１１２）および前記ストッパ（１１３）は、前記弁体（１１１）に対して圧入されていることを特徴とする請求項４に記載の電磁弁。 The valve body (111) includes a valve body large diameter portion (111a) that is slidably held by the valve body (100), and a valve body small diameter portion (diameter smaller than the valve body large diameter portion (111a)). 111b)
The armature (112) has a cylindrical shape and is disposed on the outer peripheral side of the small diameter portion (111b) of the valve body,
The stopper (113) is disposed at an end of the valve body small diameter portion (111b),
The solenoid valve according to claim 4, wherein the armature (112) and the stopper (113) are press-fitted into the valve body (111). 前記弁体（１１１）と前記アーマチャ（１１２）は同一部材であり、前記ストッパ（１１３）は非磁性材料からなることを特徴とする請求項１に記載の電磁弁。 The solenoid valve according to claim 1, wherein the valve body (111) and the armature (112) are the same member, and the stopper (113) is made of a nonmagnetic material.
JP2007265359A 2007-10-11 2007-10-11 solenoid valve Expired - Fee Related JP4835571B2 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012172648A (en) * 2011-02-24 2012-09-10 Denso Corp Injector
JP2013139864A (en) * 2012-01-06 2013-07-18 Kyb Co Ltd Solenoid valve and shock absorber
JP2013139866A (en) * 2012-01-06 2013-07-18 Kyb Co Ltd Solenoid valve and shock absorber
JP2013532787A (en) * 2010-07-22 2013-08-19 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 Fuel injection valve with dry solenoid actuator
JP2013168629A (en) * 2012-01-16 2013-08-29 Denso Corp Electromagnetic actuator
JP2014136966A (en) * 2013-01-15 2014-07-28 Hitachi Automotive Systems Ltd High-pressure fuel supply pump having suction valve of electromagnetic drive type
JP2018031333A (en) * 2016-08-26 2018-03-01 日立オートモティブシステムズ株式会社 High-pressure fuel pump

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* Cited by examiner, † Cited by third party
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DE102012104715A1 (en) * 2012-05-31 2013-12-05 Sauer-Danfoss Gmbh & Co. Ohg Actuator device for hydraulic pumps and/or hydraulic motor device mounted in e.g. vehicle engine, has mechanical guide device that includes guide element which is arranged partially in non-magnetic region
IT201800007039A1 (en) * 2018-07-09 2020-01-09 PUMPING GROUP TO FEED FUEL, PREFERABLY DIESEL, TO AN INTERNAL COMBUSTION ENGINE

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5977676A (en) * 1982-10-26 1984-05-04 Canon Electronics Inc Magnetic disc device
JPS60188279A (en) * 1984-03-07 1985-09-25 株式会社東芝 Controller for group of elevator
JPH11325297A (en) * 1998-05-14 1999-11-26 Tosok Corp Plunger for solenoid valve
JP2001012637A (en) * 1999-06-30 2001-01-16 Aisin Seiki Co Ltd Solenoid valve
JP2002106740A (en) * 2000-07-28 2002-04-10 Nippon Soken Inc Solenoid valve, and high-pressure pump using the same
JP2006138397A (en) * 2004-11-12 2006-06-01 Denso Corp Solenoid valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5977676A (en) * 1982-10-26 1984-05-04 Canon Electronics Inc Magnetic disc device
JPS60188279A (en) * 1984-03-07 1985-09-25 株式会社東芝 Controller for group of elevator
JPH11325297A (en) * 1998-05-14 1999-11-26 Tosok Corp Plunger for solenoid valve
JP2001012637A (en) * 1999-06-30 2001-01-16 Aisin Seiki Co Ltd Solenoid valve
JP2002106740A (en) * 2000-07-28 2002-04-10 Nippon Soken Inc Solenoid valve, and high-pressure pump using the same
JP2006138397A (en) * 2004-11-12 2006-06-01 Denso Corp Solenoid valve

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013532787A (en) * 2010-07-22 2013-08-19 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 Fuel injection valve with dry solenoid actuator
JP2012172648A (en) * 2011-02-24 2012-09-10 Denso Corp Injector
JP2013139864A (en) * 2012-01-06 2013-07-18 Kyb Co Ltd Solenoid valve and shock absorber
JP2013139866A (en) * 2012-01-06 2013-07-18 Kyb Co Ltd Solenoid valve and shock absorber
JP2013168629A (en) * 2012-01-16 2013-08-29 Denso Corp Electromagnetic actuator
US9004445B2 (en) 2012-01-16 2015-04-14 Denso Corporation Solenoid actuator
JP2014136966A (en) * 2013-01-15 2014-07-28 Hitachi Automotive Systems Ltd High-pressure fuel supply pump having suction valve of electromagnetic drive type
JP2018031333A (en) * 2016-08-26 2018-03-01 日立オートモティブシステムズ株式会社 High-pressure fuel pump

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