JP5874520B2 - 可変動弁装置 - Google Patents
可変動弁装置 Download PDFInfo
- Publication number
- JP5874520B2 JP5874520B2 JP2012107120A JP2012107120A JP5874520B2 JP 5874520 B2 JP5874520 B2 JP 5874520B2 JP 2012107120 A JP2012107120 A JP 2012107120A JP 2012107120 A JP2012107120 A JP 2012107120A JP 5874520 B2 JP5874520 B2 JP 5874520B2
- Authority
- JP
- Japan
- Prior art keywords
- cam shaft
- oil
- outer cam
- oil chamber
- hole
- 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
- 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
- F01L2013/0052—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 with cams provided on an axially slidable sleeve
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- Valve Device For Special Equipments (AREA)
Description
20 インナカム軸
21 貫通孔
21a 第1オイル室
21b 第2オイル室
30 アウタカム軸
31 第1カム
32 第2カム
34 係合ピン
37 第1オイル通路
38 第2オイル通路
40 駆動装置
50 機関弁
52 カムジャーナル
Claims (2)
- 内燃機関の駆動軸に連結して回転するインナカム軸と、
カムプロフィールの異なる複数のカムを有し、軸方向に移動可能に前記インナカム軸の外周に設けられ、前記軸方向に移動することにより機関弁を駆動するカムを切替えるアウタカム軸と、
前記インナカム軸に設けられた貫通孔に前記アウタカム軸に嵌め込まれた係合ピンを通過させて前記貫通孔の内側を二分することで前記係合ピンの一方側に形成された第1オイル室と前記係合ピンの他方側に形成された第2オイル室と、
前記第1オイル室内及び前記第2オイル室内の油圧を制御して、前記係合ピンの位置を保持する油圧制御機構と、
を備え、前記アウタカム軸の軸方向の位置を前記第1オイル室の油圧と前記第2オイル室の油圧により保持することを特徴とする可変動弁装置。 - 前記アウタカム軸の外周面に設けられたガイド溝と、
前記軸方向に拘束されるとともに、前記ガイド溝に対して出没可能に設けられ、突出時に前記ガイド溝に当接する駆動ピンを備えた請求項1に記載の可変動弁装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012107120A JP5874520B2 (ja) | 2012-05-08 | 2012-05-08 | 可変動弁装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012107120A JP5874520B2 (ja) | 2012-05-08 | 2012-05-08 | 可変動弁装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013234600A JP2013234600A (ja) | 2013-11-21 |
JP5874520B2 true JP5874520B2 (ja) | 2016-03-02 |
Family
ID=49760910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012107120A Active JP5874520B2 (ja) | 2012-05-08 | 2012-05-08 | 可変動弁装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5874520B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108386244A (zh) * | 2016-12-26 | 2018-08-10 | 丰田自动车株式会社 | 用于发动机的可变气门机构 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55176410U (ja) * | 1979-06-04 | 1980-12-18 | ||
JPS6129925Y2 (ja) * | 1981-04-20 | 1986-09-03 | ||
JPH0195506U (ja) * | 1987-12-16 | 1989-06-23 | ||
DE102007010154A1 (de) * | 2007-03-02 | 2008-06-26 | Audi Ag | Ventiltrieb einer Brennkraftmaschine mit dreistufigen Nockenprofilgruppen und verschiebbaren Nockenträgern mit integrierten Stellorganen |
DE102010025100A1 (de) * | 2010-06-25 | 2011-12-29 | Neumayer Tekfor Holding Gmbh | Verstellbare Nockenwelle |
-
2012
- 2012-05-08 JP JP2012107120A patent/JP5874520B2/ja active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108386244A (zh) * | 2016-12-26 | 2018-08-10 | 丰田自动车株式会社 | 用于发动机的可变气门机构 |
Also Published As
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JP2013234600A (ja) | 2013-11-21 |
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