JP4145769B2 - 強制開閉式動弁装置 - Google Patents
強制開閉式動弁装置 Download PDFInfo
- Publication number
- JP4145769B2 JP4145769B2 JP2003359046A JP2003359046A JP4145769B2 JP 4145769 B2 JP4145769 B2 JP 4145769B2 JP 2003359046 A JP2003359046 A JP 2003359046A JP 2003359046 A JP2003359046 A JP 2003359046A JP 4145769 B2 JP4145769 B2 JP 4145769B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- rocker arm
- speed
- low
- cam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/181—Centre pivot rocking arms
-
- 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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/08—Shape of cams
-
- 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
- F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
- F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the valves
-
- 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
- F01L1/30—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of positively opened and closed valves, i.e. desmodromic valves
-
- 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
- F01L2305/00—Valve arrangements comprising rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
10・・・低速用開弁カム
11・・・低速用閉弁カム
12・・・高速用開弁カム
13・・・高速用閉弁カム
14・・・カムシャフト
15・・・ロッカシャフト
16・・・低速側自由ロッカアーム
17・・・高速側自由ロッカアーム
18・・・弁駆動ロッカアーム
19・・・連結切換手段
44・・・連結ピストン
48・・・高速側油圧室
49・・・低速側油圧室
61・・・油圧源としてのポンプ
63・・・制御弁
Claims (1)
- 機関の低速運転に対応したプロフィルを有する低速用開弁カム(10)および低速用閉弁カム(11)ならびに機関の高速運転に対応したプロフィルを有する高速用開弁カム(12)および高速用閉弁カム(13)が設けられるカムシャフト(14)と、該カムシャフト(14)と平行な軸線を有するロッカシャフト(15)と、前記低速用開弁カム(10)および低速用閉弁カム(11)に従動して揺動するようにして前記ロッカシャフト(15)に支承される低速側自由ロッカアーム(16)と、前記高速用開弁カム(12)および高速用閉弁カム(13)に従動して揺動するようにして前記ロッカシャフト(15)に支承される高速側自由ロッカアーム(17)と、前記低速側および前記高速側自由ロッカアーム(16,17)間に挟まれて前記ロッカシャフト(15)で揺動可能に支承されるとともに機関弁(6)をその開弁および閉弁方向のいずれにも駆動するようにして機関弁(6)に連結される弁駆動ロッカアーム(18)と、前記ロッカシャフト(15)の軸線と平行に摺動することを可能として前記弁駆動ロッカアーム(18)に嵌合される単一の連結ピストン(44)を有するとともに該連結ピストン(44)の一端部を前記低速側自由ロッカアーム(16)に嵌合せしめて前記低速側自由ロッカアーム(16)および前記弁駆動ロッカアーム(18)を連結する状態ならびに前記連結ピストン(44)の他端部を前記高速側自由ロッカアーム(17)に嵌合せしめて前記高速側自由ロッカアーム(17)および前記弁駆動ロッカアーム(18)を連結する状態を択一的に切換える連結切換手段(19)とを備え、前記連結ピストン(44)の一端面を臨ませて前記低速側自由ロッカアーム(16)および前記弁駆動ロッカアーム(18)に形成される高速側油圧室(48)ならびに前記連結ピストン(44)の他端面を臨ませて前記高速側自由ロッカアーム(17)および前記弁駆動ロッカアーム(18)に形成される低速側油圧室(49)に、油圧源(61)の油圧を作用せしめる状態ならびに油圧を解放する状態を択一的に切換える制御弁(63)が接続されることを特徴とする強制開閉式動弁装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003359046A JP4145769B2 (ja) | 2003-10-20 | 2003-10-20 | 強制開閉式動弁装置 |
EP04024525A EP1526256B1 (en) | 2003-10-20 | 2004-10-14 | Variable desmodromic valve operating system |
DE602004004341T DE602004004341T2 (de) | 2003-10-20 | 2004-10-14 | Variables desmodromisches Ventilbetätigungssystem |
US10/967,182 US6953012B2 (en) | 2003-10-20 | 2004-10-19 | Forced opening and closing type valve operating system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003359046A JP4145769B2 (ja) | 2003-10-20 | 2003-10-20 | 強制開閉式動弁装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005120967A JP2005120967A (ja) | 2005-05-12 |
JP4145769B2 true JP4145769B2 (ja) | 2008-09-03 |
Family
ID=34386453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003359046A Expired - Fee Related JP4145769B2 (ja) | 2003-10-20 | 2003-10-20 | 強制開閉式動弁装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6953012B2 (ja) |
EP (1) | EP1526256B1 (ja) |
JP (1) | JP4145769B2 (ja) |
DE (1) | DE602004004341T2 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4539430B2 (ja) | 2005-05-11 | 2010-09-08 | トヨタ自動車株式会社 | 可変動弁装置 |
JP2007016766A (ja) * | 2005-06-06 | 2007-01-25 | Toyota Motor Corp | 可変動弁装置 |
DE102005038502B3 (de) * | 2005-08-13 | 2007-02-15 | Dr.Ing.H.C. F. Porsche Ag | Zwangsgesteuerter Ventiltrieb |
JP5139113B2 (ja) * | 2008-02-19 | 2013-02-06 | ヤマハ発動機株式会社 | 可変動弁装置 |
US8300022B2 (en) * | 2009-01-09 | 2012-10-30 | International Business Machines Corporation | Dynamically reconfigurable touch screen displays |
JP6691459B2 (ja) * | 2016-09-16 | 2020-04-28 | 株式会社オティックス | 内燃機関の可変動弁機構 |
JP6370874B2 (ja) * | 2016-12-27 | 2018-08-08 | 本田技研工業株式会社 | 内燃機関の可変動弁装置 |
JP2023154209A (ja) * | 2022-04-06 | 2023-10-19 | スズキ株式会社 | 可変動弁装置 |
KR20230173470A (ko) * | 2022-06-17 | 2023-12-27 | 현대자동차주식회사 | 이원화 오일 공급 라인이 적용된 cda 로커 암 시스템 및 그 제어 방법 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB861369A (en) * | 1958-03-29 | 1961-02-22 | Porsche Ferdinand A | Valve control arrangement for internal combustion engines |
AT228283B (de) | 1961-02-06 | 1963-07-10 | Akg Akustische Kino Geraete | In eine Kapsel eingebauter elektroakustischer Wandler mit einem Transistorverstärker, insbesondere für Handapparate von Fernsprechstationen |
FR2209395A5 (ja) * | 1972-12-01 | 1974-06-28 | Peugeot & Renault | |
DE3022188A1 (de) * | 1980-06-13 | 1981-12-24 | Teodoro 4300 Essen Holtmann | Ventilsteuerungseinrichtung eines verbrennungsmotors |
US5048474A (en) * | 1989-02-22 | 1991-09-17 | Nissan Motor Co., Ltd. | Valve train for automotive engine |
JPH05321617A (ja) | 1992-05-22 | 1993-12-07 | Yamaha Motor Co Ltd | 強制開閉式動弁装置のバルブタイミング可変装置 |
US6109226A (en) * | 1996-02-13 | 2000-08-29 | Charles R. Mote, Sr. | Geared rocker valve operation for internal combustion reciprocating piston engines which incorporate an overhead cam |
US6311659B1 (en) * | 1999-06-01 | 2001-11-06 | Delphi Technologies, Inc. | Desmodromic cam driven variable valve timing mechanism |
JP3535431B2 (ja) * | 1999-12-28 | 2004-06-07 | 本田技研工業株式会社 | 内燃機関の動弁装置 |
-
2003
- 2003-10-20 JP JP2003359046A patent/JP4145769B2/ja not_active Expired - Fee Related
-
2004
- 2004-10-14 DE DE602004004341T patent/DE602004004341T2/de active Active
- 2004-10-14 EP EP04024525A patent/EP1526256B1/en not_active Expired - Fee Related
- 2004-10-19 US US10/967,182 patent/US6953012B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US6953012B2 (en) | 2005-10-11 |
EP1526256A1 (en) | 2005-04-27 |
JP2005120967A (ja) | 2005-05-12 |
EP1526256B1 (en) | 2007-01-17 |
US20050132992A1 (en) | 2005-06-23 |
DE602004004341D1 (de) | 2007-03-08 |
DE602004004341T2 (de) | 2007-05-24 |
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