GB2410061B - Improvements to variable valve timing mechanisms - Google Patents
Improvements to variable valve timing mechanismsInfo
- Publication number
- GB2410061B GB2410061B GB0413944A GB0413944A GB2410061B GB 2410061 B GB2410061 B GB 2410061B GB 0413944 A GB0413944 A GB 0413944A GB 0413944 A GB0413944 A GB 0413944A GB 2410061 B GB2410061 B GB 2410061B
- Authority
- GB
- United Kingdom
- Prior art keywords
- variable valve
- valve timing
- timing mechanisms
- mechanisms
- variable
- 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
- 230000007246 mechanism Effects 0.000 title 1
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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
-
- 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
-
- 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
-
- 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
- F01L13/0063—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 by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
-
- 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
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
-
- 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
- F01L2301/00—Using particular materials
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/GB2004/002766 WO2005068788A1 (en) | 2004-01-13 | 2004-06-28 | Improvements to variable valve timing mechanisms |
PCT/GB2005/000095 WO2005071233A2 (en) | 2004-01-13 | 2005-01-13 | Improvements to variable timing mechanisms |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0400764A GB0400764D0 (en) | 2004-01-13 | 2004-01-13 | Improvements to variable valve timing |
GB0407213A GB0407213D0 (en) | 2004-01-13 | 2004-03-30 | Improvements to variable valve timing |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0413944D0 GB0413944D0 (en) | 2004-07-28 |
GB2410061A GB2410061A (en) | 2005-07-20 |
GB2410061B true GB2410061B (en) | 2006-03-08 |
Family
ID=32827059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0413944A Expired - Fee Related GB2410061B (en) | 2004-01-13 | 2004-05-24 | Improvements to variable valve timing mechanisms |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2410061B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2428274B (en) * | 2005-07-14 | 2010-08-11 | Powertrain Technology Ltd | Improvements to internal combustion engine valve-actuation mechanisms |
GB2428451B (en) * | 2005-07-16 | 2010-07-14 | Powertrain Technology Ltd | Improvements to the adjustment of variable valve timing mechanisms of internal combustion engines |
JP4293167B2 (en) * | 2005-07-25 | 2009-07-08 | 三菱自動車工業株式会社 | Variable valve operating device for internal combustion engine |
KR101209332B1 (en) * | 2007-08-10 | 2012-12-06 | 닛산 지도우샤 가부시키가이샤 | Variable valve apparatus and internal combustion engine |
JP5332148B2 (en) | 2007-08-10 | 2013-11-06 | 日産自動車株式会社 | Engine valve mechanism |
CN102817660A (en) * | 2012-09-11 | 2012-12-12 | 优华劳斯汽车系统(上海)有限公司 | Variable air valve structure of internal-combustion engine |
EP3623592A1 (en) * | 2018-09-17 | 2020-03-18 | Uwe Eisenbeis | Variable valvetrain having lubricant supply system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11210434A (en) * | 1998-01-22 | 1999-08-03 | Unisia Jecs Corp | Variable valve system of internal combustion engine |
US5937809A (en) * | 1997-03-20 | 1999-08-17 | General Motors Corporation | Variable valve timing mechanisms |
FR2849465A1 (en) * | 2002-12-27 | 2004-07-02 | Renault Sa | Motor vehicle internal combustion engine poppet valve drive has camshaft with cam timing adjuster having adjuster cylinder and linkage |
-
2004
- 2004-05-24 GB GB0413944A patent/GB2410061B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5937809A (en) * | 1997-03-20 | 1999-08-17 | General Motors Corporation | Variable valve timing mechanisms |
JPH11210434A (en) * | 1998-01-22 | 1999-08-03 | Unisia Jecs Corp | Variable valve system of internal combustion engine |
FR2849465A1 (en) * | 2002-12-27 | 2004-07-02 | Renault Sa | Motor vehicle internal combustion engine poppet valve drive has camshaft with cam timing adjuster having adjuster cylinder and linkage |
Also Published As
Publication number | Publication date |
---|---|
GB0413944D0 (en) | 2004-07-28 |
GB2410061A (en) | 2005-07-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20110524 |