JP2016223467A - 流路仕切構造及び流体制御弁 - Google Patents
流路仕切構造及び流体制御弁 Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/26—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in either direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/061—Sliding valves
- F16K31/0613—Sliding valves with cylindrical slides
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- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0476—Camshaft bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34426—Oil control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34426—Oil control valves
- F01L2001/34433—Location oil control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34436—Features or method for avoiding malfunction due to foreign matters in oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34453—Locking means between driving and driven members
- F01L2001/34463—Locking position intermediate between most retarded and most advanced positions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34453—Locking means between driving and driven members
- F01L2001/34469—Lock movement parallel to camshaft axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34479—Sealing of phaser devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34483—Phaser return springs
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- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2250/00—Camshaft drives characterised by their transmission means
- F01L2250/02—Camshaft drives characterised by their transmission means the camshaft being driven by chains
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2303/00—Manufacturing of components used in valve arrangements
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- Valve Device For Special Equipments (AREA)
- Multiple-Way Valves (AREA)
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Abstract
Description
しかし、本構成のように、第1プレートが第2プレートよりも表面硬度の低い材料で構成されていると、第2プレートが第1プレートに当接する際に第1プレートに押し付けられる異物を第1プレートの表層に埋没させることができる。これにより、第1プレートと第2プレートとの密着性が保持され、第2プレートを適正な姿勢で配置することできる。
また、第2プレートのうち第1プレートに対向する面を小径にすることで、第2プレートを圧入する際の抵抗が小さくなる。その結果、切粉の発生が抑えられ、流路空間への第2プレートの組込み作業が容易となる。
以下に、本発明の実施形態について図面に基づいて説明する。本実施形態は、流路仕切構造を弁開閉時期制御装置に備えられるOCV(オイルコントロールバルブ)に適用した例である。
弁開閉時期制御装置Aは、図1,図2に示すように、エンジンEのクランクシャフトE2と同期回転するハウジング1と、ハウジング1の内側に同じ回転軸芯Xで回転自在に支持され、吸気弁開閉用のカムシャフト2と一体回転する内部ロータ3とを有する。
外部ロータ1bはタイミングスプロケット1eを一体的に備えている。タイミングスプロケット1eには、クランクシャフトE2の回転に連動する金属チェーンなどの無端回動体E4が巻き掛けられる。
ハウジング1の回転駆動に伴い、内部ロータ3が回転方向Sに従動回転してカムシャフト2が回転し、カムE3がエンジンEの吸気弁E1を押し下げて開弁させる。
図3に示すように、ボルト5は、スリーブ4の内側に挿通される筒軸部5cと、筒軸部5cに連続するボルト頭5bと、ボルト頭5bとは異なる筒軸部5cに連続する雄ねじ部5dとを備えた筒状に形成してある。筒軸部5cの内部に回転軸芯Xの方向の穴部が流路空間5aとして形成されており、流路空間5aはボルト頭5bに開口部を有する。
流体圧室7は、径方向内側に突出する複数個の突出部1fを回転方向Sに間隔を隔てて外部ロータ1bに形成することにより区画してある。流体圧室7は、更に、内部ロータ3に形成した径方向外方に突出する突出部3aによって回転方向Sで進角室7aと遅角室7bとに区画されている。
ロック機構11は、油圧操作で回転軸芯Xの方向に出退移動するロック部材11aを備え、このロック部材11aをフロントプレート1a又はリアプレート1cに係合することによりロック位相に拘束する。
図3〜図6に示すように、「流体制御弁」として、ボルト5の内部に形成された流路空間5aにOCV12(オイルコントロールバルブ)が設けられている。OCV12はカムシャフト2と同軸芯で配設されている。
OCV12は、ハウジング1と内部ロータ3との相対回転位相が、最進角位相と最遅角位相との間で変更されるよう、進角流路8a及び遅角流路8bを介して進角室7a及び遅角室7bに対するオイルの給排を切り替える。
進角制御状態への切り替えは、電磁ソレノイド12cへの給電を停止することにより行う。これに対し、中立状態又は遅角制御状態への切り替えは、電磁ソレノイド12cへの給電量を制御することで行う。
本実施形態では、図6に示すように、第1プレート20は、第1プレート20の外周縁25のうち、第2プレート30の側の外周縁の少なくとも一部が他の外周縁に比べて小径に形成されている。図6では、第1プレート20の外周縁25のうち第2プレート30の側の面24と交差する角部が切削されて面取り部26が形成されている。面取り部26によって異物貯留部Fが拡張されるため、異物貯留部Fに異物Dを保持し易くなる。
本実施形態では、図7に示すように、第2プレート30は、第2プレート30の外周縁35のうち、第1プレート20の側の外周縁の少なくとも一部が他の外周縁に比べて小径に形成されている。図7では、第2プレート30の外周縁35のうち第1プレート20の側の面34と交差する角部が切削されて面取り部36がされている。面取り部36によって異物貯留部Fが拡張されるため、異物貯留部Fに異物Dを保持し易くなる。また、他の外周縁よりも小径の面取り部36は第2プレート30をボルト5の流路空間5aに挿入する際の案内として用いることができる。これにより、第2プレート30を挿入する際に切粉の発生が抑えられ、流路空間5aへの第2プレート30の組込み作業が容易になる。
本実施形態では、図8に示すように、第2プレート30の外周縁35において第1プレート20の側の面34に交差する角部と第1プレート20とは反対の側の面33に交差する角部の両方に面取り部36が形成されている。このように、第2プレート30の両面33,34に面取り部36を形成すると、第2プレート30がスプリング12bの係止部31を有しない場合に、第2プレート30の両面33,34を同形状にすることができる。これにより、第2プレート30は面33,34を区別することなくボルト5の流路空間5aへの挿入が可能になる。その結果、流路空間5aへの第2プレート30の組込み作業がより簡単になる。
本実施形態では、図9に示すように、第1プレート20が第2プレート30との側の面24に凸部27を有し、第2プレート30が第1プレート20の側の面34に凹部37を有する。第1プレート20の凸部27と第2プレート30の凹部37とを組み合わせることで、凸部27の外周側と凹部37の内周側に囲まれた異物貯留部Fを形成することができる。図9に示す例では、第1プレート20の外周部28と第2プレート30の外周部38とは離間しているが、第1プレート20の外周部28と第2プレート30の外周部38とが接するよう構成してもよい。こうすると、第1プレート20の凸部27と第2プレート30の凹部37との間の異物貯留部Fは封鎖されるため、異物Dを第2プレート30の内周側に完全に封じ込めることもできる。
上記の各実施形態では、本発明を、エンジンEの弁開閉時期制御装置AにおいてOCV12が設けられるボルト5の流路空間5aに適用した例を説明した。しかし、本発明の適用範囲はこれに限定されるものではなく、各種油圧機器の制御のための流路空間に用いることが可能であり、更には、油圧以外の各種流体の流路空間にも適用可能である。
2 :カムシャフト
3 :内部ロータ(従動側回転体)
5 :ボルト(流路部材)
5a :穴部(流路空間)
7 :流体圧室
7a :進角室
7b :遅角室
13b :第1流路
14c :第2流路
14d :段部
18 :仕切体
20 :第1プレート
30 :第2プレート
E2 :クランクシャフト
F :異物貯留部
X :回転軸芯
Claims (5)
- 流体を流通させる流路空間を有する流路部材と、
前記流路空間を第1流路と第2流路とに仕切る仕切体とを備え、
前記仕切体は、
前記流路部材の一方の開口端部から挿入され、挿入方向の奥側において前記第1流路と前記第2流路との境界に設けられた段部に当接する第1プレートと、
前記第1プレートに続けて前記流路空間に挿入され、前記流路空間の内周面に圧入された状態で前記第1プレートに重ねて当接する第2プレートと、を有し、
前記第1プレートの外周面が前記流路空間の内周面とは当接せず、前記第1プレート及び前記第2プレート、前記内周面によって形成された空間を異物貯留部としてある流路仕切構造。 - 前記第1プレートは、前記第2プレートよりも表面硬度の低い材料で構成されている請求項1に記載の流路仕切構造。
- 前記第1プレートの外周縁のうち、前記第2プレートの側の外周縁の少なくとも一部が他の外周縁に比べて小径に形成されている請求項1又は2に記載の流路仕切構造。
- 前記第2プレートの外周縁のうち、前記第1プレートの側の外周縁の少なくとも一部が他の外周縁に比べて小径に形成されている請求項1〜3の何れか一項に記載の流路仕切構造。
- 内燃機関のクランクシャフトに対して同期回転する駆動側回転体と、該駆動側回転体に対して同軸状に配置され、前記内燃機関のカムシャフトに対して同期回転する従動側回転体と、前記駆動側回転体及び前記従動側回転体の少なくとも一方に形成され、進角室と遅角室とに仕切られた流体圧室と、前記従動側回転体の回転軸芯と同軸上に挿入配置されて前記従動側回転体と前記カムシャフトとを連結するボルトと、を有する弁開閉時期制御装置において、前記ボルトに形成された前記回転軸芯の方向の穴部に、前記第1プレート及び前記第2プレートが挿入されて前記第1流路及び前記第2流路が設けられ、前記流体圧室に対して作動流体を供給及び排出する請求項1〜4の何れか一項に記載の流路仕切構造を備えた流体制御弁。
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EP16169971.5A EP3156701B1 (en) | 2015-05-27 | 2016-05-17 | Flow passage partition structure and fluid control valve |
CN201610347516.2A CN106194309B (zh) | 2015-05-27 | 2016-05-23 | 流路分隔结构以及流体控制阀 |
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CN109538168B (zh) * | 2018-11-15 | 2021-04-13 | 成都百胜野牛科技有限公司 | 一种流体分隔装置及井道结构 |
US10662828B1 (en) * | 2018-12-11 | 2020-05-26 | Delphi Technologies Ip Limited | Camshaft phaser |
US11174760B2 (en) * | 2018-12-11 | 2021-11-16 | Delphi Technologies Ip Limited | Camshaft phaser |
CN113494680B (zh) * | 2020-04-07 | 2023-05-12 | 添可智能科技有限公司 | 通路切换装置、液体供给系统和通路切换方法 |
CN114673814B (zh) * | 2022-05-30 | 2022-08-16 | 宜宾职业技术学院 | 一种动力锂电池安全阀及其使用方法 |
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