JP6932179B2 - ロストモーション機構、動弁装置およびエンジン - Google Patents
ロストモーション機構、動弁装置およびエンジン Download PDFInfo
- Publication number
- JP6932179B2 JP6932179B2 JP2019239845A JP2019239845A JP6932179B2 JP 6932179 B2 JP6932179 B2 JP 6932179B2 JP 2019239845 A JP2019239845 A JP 2019239845A JP 2019239845 A JP2019239845 A JP 2019239845A JP 6932179 B2 JP6932179 B2 JP 6932179B2
- Authority
- JP
- Japan
- Prior art keywords
- lost motion
- motion mechanism
- engine
- cylinder head
- spring
- 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.)
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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
- F01L1/26—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
- F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
- F01L1/462—Valve return spring arrangements
-
- 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
- F01L1/185—Overhead end-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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0005—Deactivating 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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
-
- 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
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
- F01L2001/0537—Double overhead camshafts [DOHC]
-
- 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
- F01L2001/186—Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison
-
- 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
- F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
- F01L2001/467—Lost motion springs
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
16 シリンダヘッド
40a 吸気カムシャフト
40b 排気カムシャフト
42a,44a 吸気カム
42b,44b 排気カム
46 動弁装置
52a,52b,78 凹部
62 ロッカアーム
68,68a,68b,68c,68d ロストモーション機構
70 第1アーム部
72 第2アーム部
84,84a,84b シート部
86,86a,86b 柱状部材
86d 筒状部材
88,88b,88c 凸部
88a ピン
90 ロストモーションスプリング
92,92a,92d 中空部
96,96d 貫通孔
Claims (8)
- エンジンの一部に設けられるべきロストモーション機構であって、
ロストモーションスプリングと、
前記ロストモーションスプリングの曲がりを規制するために前記ロストモーションスプリングの軸方向に延びる規制部材と、
前記ロストモーションスプリングの端部が接触するように、前記規制部材から前記ロストモーションスプリングの径方向に延びる支持部と、
前記エンジンの一部に前記支持部を取り付けるために前記支持部に設けられる取付部とを備え、
前記取付部は、前記支持部において前記ロストモーションスプリングとは反対側に設けられる筒状の凸部を含み、
前記軸方向から見たとき、前記取付部は前記支持部よりはみ出さない、ロストモーション機構。 - エンジンの一部に設けられるべきロストモーション機構であって、
ロストモーションスプリングと、
前記ロストモーションスプリングの曲がりを規制するために前記ロストモーションスプリングの軸方向に延びる規制部材と、
前記ロストモーションスプリングの端部が接触するように、前記規制部材から前記ロストモーションスプリングの径方向に延びる支持部と、
前記エンジンの一部に前記支持部を取り付けるために前記支持部に設けられる少なくとも凸部または凹部を有する取付部と、
前記規制部材、前記支持部および前記取付部を貫通する貫通孔とを備え、
前記軸方向から見たとき、前記取付部は前記支持部よりはみ出さない、ロストモーション機構。 - 前記支持部は、前記ロストモーションスプリングの下端部を支持するシート部を含み、
前記取付部は、前記シート部に設けられ、
前記エンジンは、前記取付部が取り付けられるべきシリンダヘッドを含む、請求項1または2に記載のロストモーション機構。 - 前記規制部材は、前記ロストモーションスプリングの内部に挿入される柱状部材を含む、請求項1から3のいずれかに記載のロストモーション機構。
- 前記規制部材は、前記ロストモーションスプリングを覆う筒状部材を含む、請求項1から3のいずれかに記載のロストモーション機構。
- 前記柱状部材は、中空部を有する、請求項4に記載のロストモーション機構。
- 請求項1から6のいずれかに記載のロストモーション機構を備える、動弁装置。
- 請求項7に記載の動弁装置を備える、エンジン。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019239845A JP6932179B2 (ja) | 2019-12-27 | 2019-12-27 | ロストモーション機構、動弁装置およびエンジン |
US17/114,560 US11193401B2 (en) | 2019-12-27 | 2020-12-08 | Lost motion mechanism, valve gear and engine |
EP20216365.5A EP3842623B1 (en) | 2019-12-27 | 2020-12-22 | Lost motion mechanism, valve gear and engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019239845A JP6932179B2 (ja) | 2019-12-27 | 2019-12-27 | ロストモーション機構、動弁装置およびエンジン |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021107706A JP2021107706A (ja) | 2021-07-29 |
JP6932179B2 true JP6932179B2 (ja) | 2021-09-08 |
Family
ID=73856740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019239845A Active JP6932179B2 (ja) | 2019-12-27 | 2019-12-27 | ロストモーション機構、動弁装置およびエンジン |
Country Status (3)
Country | Link |
---|---|
US (1) | US11193401B2 (ja) |
EP (1) | EP3842623B1 (ja) |
JP (1) | JP6932179B2 (ja) |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6817523A (ja) | 1967-12-07 | 1969-06-10 | ||
JPH03267514A (ja) | 1990-03-19 | 1991-11-28 | Nissan Motor Co Ltd | エンジンの弁作動装置 |
KR950005088B1 (ko) * | 1990-07-10 | 1995-05-18 | 미쯔비시 지도샤 고교 가부시끼가이샤 | 자동차용 동력 밸브 장치 |
JP2001329817A (ja) | 2000-05-19 | 2001-11-30 | Otics Corp | 可変動弁機構 |
DE10112980A1 (de) | 2001-03-17 | 2002-09-19 | Ina Schaeffler Kg | Schaltbarer Ventiltrieb einer Brennkraftmaschine |
EP1712748B1 (en) | 2005-01-12 | 2010-04-14 | Eaton S.R.L. | Rocker arm arrangement for dual valve timing with single cam lobe |
JP4476241B2 (ja) * | 2005-06-20 | 2010-06-09 | 日立オートモティブシステムズ株式会社 | 内燃機関の動弁装置 |
JP4931680B2 (ja) | 2007-04-19 | 2012-05-16 | 株式会社オティックス | 動弁機構 |
JP5049089B2 (ja) | 2007-10-05 | 2012-10-17 | 株式会社オティックス | ロッカアーム支持部材及び可変動弁機構 |
KR100980872B1 (ko) * | 2007-12-14 | 2010-09-14 | 현대자동차주식회사 | 가변 밸브 리프트 장치 |
JP5139112B2 (ja) | 2008-02-19 | 2013-02-06 | ヤマハ発動機株式会社 | エンジン |
JP2009264200A (ja) | 2008-04-23 | 2009-11-12 | Honda Motor Co Ltd | 可変動弁装置 |
WO2011024335A1 (ja) | 2009-08-24 | 2011-03-03 | ヤマハ発動機株式会社 | 可変動弁装置及びそれを備えたエンジン並びに鞍乗型車両 |
WO2011125194A1 (ja) * | 2010-04-07 | 2011-10-13 | トヨタ自動車株式会社 | 内燃機関の動弁装置 |
US10215063B2 (en) * | 2014-10-03 | 2019-02-26 | Yamaha Hatsudoki Kabushiki Kaisha | Valve gear for engine and method of manufacturing rocker arms |
EP3203043B1 (en) | 2014-10-03 | 2018-12-12 | Yamaha Hatsudoki Kabushiki Kaisha | Valve gear for engine |
JP2016094901A (ja) | 2014-11-14 | 2016-05-26 | トヨタ自動車株式会社 | 可変動弁装置 |
DE102016112994A1 (de) | 2016-07-14 | 2018-01-18 | Thyssenkrupp Ag | Montagehilfe, Nockenwellenmodul und Verfahren zur Fixierung der Drehposition von drehbar gelagerten Wellen |
JP6458090B2 (ja) | 2017-06-30 | 2019-01-23 | ヤマハ発動機株式会社 | 内燃機関および車両 |
-
2019
- 2019-12-27 JP JP2019239845A patent/JP6932179B2/ja active Active
-
2020
- 2020-12-08 US US17/114,560 patent/US11193401B2/en active Active
- 2020-12-22 EP EP20216365.5A patent/EP3842623B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20210199028A1 (en) | 2021-07-01 |
JP2021107706A (ja) | 2021-07-29 |
EP3842623A1 (en) | 2021-06-30 |
EP3842623B1 (en) | 2023-02-08 |
US11193401B2 (en) | 2021-12-07 |
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