JP4288220B2 - 内燃機関のバルブタイミング制御装置 - Google Patents
内燃機関のバルブタイミング制御装置 Download PDFInfo
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- JP4288220B2 JP4288220B2 JP2004270717A JP2004270717A JP4288220B2 JP 4288220 B2 JP4288220 B2 JP 4288220B2 JP 2004270717 A JP2004270717 A JP 2004270717A JP 2004270717 A JP2004270717 A JP 2004270717A JP 4288220 B2 JP4288220 B2 JP 4288220B2
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- Prior art keywords
- vane
- oil chamber
- valve timing
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Classifications
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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
-
- 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
-
- 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
-
- 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
- F01L2001/34456—Locking in only one position
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Description
実施例1につき図1ないし図8に基づき説明する。図1は、エンジン始動時におけるバルブタイミング制御装置1(以下、VTC1と記載する。)の軸方向断面図及び制御構成を示す図である。図1におけるx軸は、カムシャフト2と平行とする。VTC1はエンジンと接続するカムシャフト2のx軸負方向端部に設けられ、チェーンを介してクランクシャフトから回転が伝達される。
図2は、VTC1の分解斜視図である。上述のようにVTC1はハウジング10、ベーンロータ20、及びスプロケット30を有する。ベーンロータ20は外周部において略等間隔に設けられた第1、第2ベーン210,220を有し、第1ベーン210は3枚、第2ベーン220は1枚設けられている。第2ベーン220は第1ベーン210よりも周方向幅を大きく設けられており、この第2ベーン220にはx軸方向貫通孔が設けられてロックピン21を軸方向摺動可能に収装する。また、第1、第2ベーン210,220の外径面にはシール40が設けられてハウジング10の内周面と液密に摺接する。
図3はスプリングユニット300の斜視図である。上述のようにスプリングユニット300は第1、第2コイルスプリング310,320及び保持部330からなり、第1、第2コイルスプリング310,320はそれぞれ両端において保持部330と嵌合し、保持されている。本願実施例1においては、第1、第2コイルスプリング310,320は同径同長とされ、互いに巻線方向が逆向きとなるよう設けられている。
図4はVTC1の最進角位置における径方向断面図、図5は最遅角位置における径方向断面図である。上述のようにベーンロータ20は3枚の第1ベーン210及び1枚の第2ベーン220を有している。計4枚の第1、第2ベーン210,220を略等間隔に設けることでベーンロータ20の重量バランスを向上させ、VTC1作動時における振動を極力抑える構成となっている。また、各進角油室500にはスプリングユニット300が設けられ、ベーンロータ20を負方向回転側に付勢している。
図6は、VTC1の最遅角状態における第2ベーン220付近の径方向断面図である。図6に示すように、進角油室500内に設けられたスプリングユニット300の第1、第2コイルスプリング310,320の内径側に摩耗粉Aが進入したと仮定する。また、この摩耗粉AはVTC1に作動油の給排を行う油路の径よりも大きく、油路から流出しないため進角油室500内に滞留するものとする。
以上、本発明を実施するための最良の形態を実施例1に基づいて説明してきたが、本発明の具体的な構成は実施例1に限定されるものではなく、発明の要旨を逸脱しない範囲の設計変更等があっても、本発明に含まれる。
(イ)請求項1ないし請求項3のいずれかに記載の内燃機関のバルブタイミング制御装置において、
前記ベーンの1つに内燃機関の始動時に前記ハウジングに対する前記ベーンロータの位置を拘束する拘束機構を設け、
該拘束機構が設けられたベーンに対して周方向反対側のベーンに近接させて前記突起を設けたことを特徴とする内燃機関のバルブタイミング制御装置。
前記拘束機構は、前記ベーンに回転軸方向に沿って形成された摺動孔と、
該摺動孔内を摺動可能に設けられたロックピストンと、
前記ロックピストンを前記ベーンから突出する方向に付勢するロックスプリングと、
前記ハウジングに形成され、前記ロックピストンが前記ベーンから突出した際に前記ロックピストン先端を収容可能な収容孔と、
前記ロックピストンを内燃機関の始動状態に応じて解除させる解除機構と、
から構成されていることを特徴とする内燃機関のバルブタイミング制御装置。
前記ベーンロータは4枚のベーンを有していることを特徴とする内燃機関のバルブタイミング制御装置。
前記突起は複数箇所に設けられ、該複数の突起が前記ハウジングに対して当接可能となっていることを特徴とする内燃機関のバルブタイミング制御装置。
前記突起は、前記スプリングを保持する保持器から前記遅角油室及び/又は前記進角油室内に伸びる突起で構成されることを特徴とする内燃機関のバルブタイミング制御装置。
2 カムシャフト
3 カムボルト
4 オイルポンプ
5 油圧制御アクチュエータ
6 コントローラ
7 油圧供給ブロック
10 ハウジング
11 スリーブ
20 ベーンロータ
21 ロックピン
22 リテーナ
23 スプリング
30 スプロケット
110 シュー
210 第1ベーン
220 第2ベーン
223 軸方向貫通孔
230 ロータ部
240 突起
300 スプリングユニット
310,320 コイルスプリング
330 保持部
500 進角油室
600 遅角油室
Claims (3)
- 内燃機関のクランクシャフトから回転が伝達される回転伝達部材と、
前記回転伝達部材もしくはカムシャフトの一方に固定され、少なくとも軸方向一端側に開口を有するハウジング本体と、該ハウジング本体の開口を封止する少なくとも一枚のプレートによって構成されるハウジングと、
前記ハウジング本体の内周側に突出するように形成されることにより作動室が隔成されるシューと、
前記回転伝達部材もしくはカムシャフトの他方に固定され、径方向に突出するベーンを有するとともに前記ハウジング内に配置されるベーンロータと、
前記作動室を前記ベーンロータによって隔成することで形成され、流体給排手段によって油の供給及び排出が行われる遅角油室と進角油室と、
前記遅角油室又は前記進角油室に配置され、前記ベーンと前記シューが互いに離れる方向に付勢力を作用させるコイルスプリングと、
前記コイルスプリングが配置される前記遅角油室又は前記進角油室内において前記ベーンと前記シューとが接触せず、かつ前記コイルスプリングの線間が接触しないように前記ベーンと前記シューの相対回転を規制する回転規制機構と、
を有することを特徴とする内燃機関のバルブタイミング制御装置。 - 請求項1に記載の内燃機関のバルブタイミング制御装置において、
前記回転規制機構は、前記ベーンロータから前記コイルスプリングが配置される前記遅角油室又は前記進角油室内に延びる突起で構成されることを特徴とする内燃機関のバルブタイミング制御装置。 - 請求項1に記載の内燃機関のバルブタイミング制御装置において、
前記回転規制機構は、前記ベーンロータにおける中心部位となるロータ部から前記コイルスプリングに向けて外周側に伸びる突起で構成されていることを特徴とする内燃機関のバルブタイミング制御装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004270717A JP4288220B2 (ja) | 2004-09-17 | 2004-09-17 | 内燃機関のバルブタイミング制御装置 |
US11/227,125 US7225774B2 (en) | 2004-09-17 | 2005-09-16 | Valve timing control apparatus for internal combustion engine |
DE102005044572A DE102005044572A1 (de) | 2004-09-17 | 2005-09-19 | Ventilsteuerzeit-Steuereinrichtung für Brennkraftmaschinen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004270717A JP4288220B2 (ja) | 2004-09-17 | 2004-09-17 | 内燃機関のバルブタイミング制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006083786A JP2006083786A (ja) | 2006-03-30 |
JP4288220B2 true JP4288220B2 (ja) | 2009-07-01 |
Family
ID=36011854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004270717A Active JP4288220B2 (ja) | 2004-09-17 | 2004-09-17 | 内燃機関のバルブタイミング制御装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7225774B2 (ja) |
JP (1) | JP4288220B2 (ja) |
DE (1) | DE102005044572A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006004760A1 (de) * | 2006-02-02 | 2007-10-11 | Schaeffler Kg | Hydraulischer Nockenwellenversteller |
US7614370B2 (en) * | 2006-06-06 | 2009-11-10 | Delphi Technologies, Inc. | Vane-type cam phaser having bias spring system to assist intermediate position pin locking |
JP4434245B2 (ja) * | 2007-07-19 | 2010-03-17 | 株式会社デンソー | バルブタイミング調整装置 |
JP2009024600A (ja) * | 2007-07-19 | 2009-02-05 | Denso Corp | バルブタイミング調整装置 |
US7721692B2 (en) * | 2007-09-06 | 2010-05-25 | Delphi Technologies, Inc. | Cam phaser having pre-loaded spring for biasing the rotor through only a portion of its range of authority |
DE102012206338B4 (de) * | 2012-04-18 | 2021-06-02 | Schaeffler Technologies AG & Co. KG | Nockenwellenversteller mit Stator-Deckel-Einheit zur automatischen Einstellung eines Verriegelungsspiels |
DE102013211407A1 (de) * | 2012-07-10 | 2014-01-16 | Schaeffler Technologies AG & Co. KG | Torsionsschwingungsdämpfer mit Bogenfeder und Endkappe |
DE102016213242A1 (de) * | 2016-07-20 | 2017-05-24 | Schaeffler Technologies AG & Co. KG | Nockenwellenversteller |
US10808580B2 (en) | 2018-09-12 | 2020-10-20 | Borgwarner, Inc. | Electrically-actuated VCT lock |
WO2022141637A1 (zh) * | 2021-01-04 | 2022-07-07 | 舍弗勒技术股份两合公司 | 凸轮相位调节器 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19916675B4 (de) * | 1999-04-14 | 2005-07-07 | Daimlerchrysler Ag | Vorrichtung zur relativen Winkelverstellung einer Nockenwelle |
KR100474398B1 (ko) | 2000-01-25 | 2005-03-08 | 미쓰비시덴키 가부시키가이샤 | 밸브타이밍 조정장치 |
-
2004
- 2004-09-17 JP JP2004270717A patent/JP4288220B2/ja active Active
-
2005
- 2005-09-16 US US11/227,125 patent/US7225774B2/en active Active
- 2005-09-19 DE DE102005044572A patent/DE102005044572A1/de not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
US20060060161A1 (en) | 2006-03-23 |
US7225774B2 (en) | 2007-06-05 |
DE102005044572A1 (de) | 2006-03-30 |
JP2006083786A (ja) | 2006-03-30 |
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