ES2190661T3 - Mecanismo para el control de valvulas. - Google Patents
Mecanismo para el control de valvulas.Info
- Publication number
- ES2190661T3 ES2190661T3 ES99949234T ES99949234T ES2190661T3 ES 2190661 T3 ES2190661 T3 ES 2190661T3 ES 99949234 T ES99949234 T ES 99949234T ES 99949234 T ES99949234 T ES 99949234T ES 2190661 T3 ES2190661 T3 ES 2190661T3
- Authority
- ES
- Spain
- Prior art keywords
- cam
- camshaft
- valve stem
- axis
- cam follower
- 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 - Lifetime
Links
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
- F01L1/34—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
- F01L1/34403—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 helically teethed sleeve or gear moving axially between crankshaft and camshaft
- F01L1/34406—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 helically teethed sleeve or gear moving axially between crankshaft and camshaft the helically teethed sleeve being located in the camshaft driving pulley
-
- 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
- F01L1/14—Tappets; Push rods
- F01L1/143—Tappets; Push rods for use with overhead camshafts
-
- 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
-
- 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
- F01L13/0042—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 being 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
- 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
- F01L2013/0078—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 axially displacing the camshaft
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)
- Fluid-Driven Valves (AREA)
- Magnetically Actuated Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
En un motor de combustión interna o para utilización en el mismo, un mecanismo de control de válvula que comprende: (1) un eje de levas (4) portador de una serie de levas (5), estando montado el eje de levas (4), o estando adaptado para su montaje, en una culata de cilindros o soporte de levas (44); (2) un seguidor de leva para cada leva (5), comprendiendo cada uno de los seguidores de levas un cuerpo (6) que se desplaza alternativamente dentro de una guía y en un extremo actúa sobre el extremo del vástago de válvula (1); y (3) medios (7, 8, 9, 14) para el avance y retraso relativos de la rotación del eje de levas (4), caracterizado porque: los seguidores de levas (6) están dispuestos de manera tal que la zona de acción entre cada seguidor de leva (6) y el extremo de su respectivo vástago de válvula (1) está situado en alejamiento del punto medio (medido en una dirección paralela al eje geométrico del eje de levas) de una sección por el seguidor de levas (6) en un plano que contiene el ejegeométrico del eje de levas (4) y el eje geométrico del vástago de válvulas (1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9823816.5A GB9823816D0 (en) | 1998-10-30 | 1998-10-30 | Valve control mechanism |
GBGB9824438.7A GB9824438D0 (en) | 1998-11-06 | 1998-11-06 | Valve control mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2190661T3 true ES2190661T3 (es) | 2003-08-01 |
Family
ID=26314589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES99949234T Expired - Lifetime ES2190661T3 (es) | 1998-10-30 | 1999-10-15 | Mecanismo para el control de valvulas. |
Country Status (9)
Country | Link |
---|---|
US (1) | US6474281B1 (es) |
EP (1) | EP1125039B1 (es) |
JP (1) | JP2002529635A (es) |
AT (1) | ATE234418T1 (es) |
AU (1) | AU6220899A (es) |
DE (1) | DE69905924T2 (es) |
ES (1) | ES2190661T3 (es) |
GB (1) | GB2341659B (es) |
WO (1) | WO2000026511A1 (es) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0006875D0 (en) | 2000-03-21 | 2000-05-10 | Walters Christopher P M | Valve control mechanism |
GB0011930D0 (en) * | 2000-05-17 | 2000-07-05 | Walters Christopher P M | Valve control mechanism |
CA2326036A1 (en) | 2000-11-16 | 2002-05-16 | Gemplus S.A. | Method for securing electronic device data processing |
GB0107892D0 (en) | 2001-03-29 | 2001-05-23 | Walters Christopher P M | Valve control mechanism and engines containing same |
DE102004011586A1 (de) * | 2003-03-21 | 2004-10-07 | Audi Ag | Ventiltrieb einer einen Zylinderkopf aufweisenden Brennkraftmaschine |
EP1646770A1 (en) | 2003-06-30 | 2006-04-19 | Christopher Paulet Melmoth Walters | Valve gear |
DE10330871A1 (de) * | 2003-07-09 | 2005-01-27 | Ina-Schaeffler Kg | Vollvariabler Ventiltrieb |
US7228832B2 (en) * | 2004-03-23 | 2007-06-12 | Tecumseh Products Company | Internal combustion engine with translatable camshaft |
DE102004043935B4 (de) * | 2004-09-11 | 2016-10-20 | Audi Ag | Vorrichtung im Zylinderkopf einer ventilgesteuerten Brennkraftmaschine |
US7140335B2 (en) * | 2004-09-17 | 2006-11-28 | Kaymor, Llc | Dynamic valve timing adjustment mechanism for internal combustion engines |
KR100666774B1 (ko) * | 2004-12-17 | 2007-01-09 | 현대자동차주식회사 | 자동차의 가변 제어용 캠 구동 시스템 |
US7341032B1 (en) * | 2005-03-01 | 2008-03-11 | Michael Steven Del Santo | Dynamic camshaft apparatus |
US7559298B2 (en) | 2006-04-18 | 2009-07-14 | Cleeves Engines Inc. | Internal combustion engine |
DE102007003997A1 (de) | 2007-01-26 | 2008-07-31 | Schaeffler Kg | Verstellvorrichtung zur axialen Verstellung einer Nockenwelle mittels eines Verstellaktuators |
DE102007003858A1 (de) | 2007-01-26 | 2008-07-31 | Schaeffler Kg | Verstellvorrichtung zur axialen und rotatorischen Verstellung einer Nockenwelle |
DE102008029349A1 (de) * | 2008-06-20 | 2009-12-24 | Daimler Ag | Ventiltriebvorrichtung |
DE102008029325A1 (de) * | 2008-06-20 | 2009-12-24 | Daimler Ag | Ventiltriebvorrichtung |
US20100147269A1 (en) * | 2008-11-23 | 2010-06-17 | Cleeves Engines Inc. | Internal Combustion Engine With Optimal Bore-To-Stroke Ratio |
US8413619B2 (en) | 2010-10-08 | 2013-04-09 | Pinnacle Engines, Inc. | Variable compression ratio systems for opposed-piston and other internal combustion engines, and related methods of manufacture and use |
KR101209733B1 (ko) * | 2010-09-01 | 2012-12-07 | 현대자동차주식회사 | 가변 밸브 리프트 장치 |
US9650951B2 (en) | 2010-10-08 | 2017-05-16 | Pinnacle Engines, Inc. | Single piston sleeve valve with optional variable compression ratio capability |
US8881708B2 (en) | 2010-10-08 | 2014-11-11 | Pinnacle Engines, Inc. | Control of combustion mixtures and variability thereof with engine load |
DE102010063389A1 (de) * | 2010-12-17 | 2012-06-21 | Schaeffler Technologies Gmbh & Co. Kg | Verstellsystem für Gaswechselventile von Hubkolbenbrennkraftmaschinen |
EP2872765B1 (en) | 2012-07-02 | 2016-06-15 | Pinnacle Engines, Inc. | Variable compression ratio diesel engine |
JP6226787B2 (ja) * | 2014-03-19 | 2017-11-08 | 本田技研工業株式会社 | デコンプ機構付き内燃機関 |
WO2015143542A1 (en) * | 2014-03-27 | 2015-10-01 | Daniel Pomerleau | Pivoting variable cam follower |
KR102417382B1 (ko) * | 2016-12-14 | 2022-07-06 | 현대자동차주식회사 | 가변 밸브 타이밍 기구 및 가변 밸브 듀레이션 기구를 이용한 밸브 타이밍 및 밸브 듀레이션 제어 방법 |
EP3789645A1 (en) * | 2019-09-03 | 2021-03-10 | HUSCO Automotive Holdings LLC | Systems and methods for a poppet valve assembly |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3712277A (en) * | 1970-03-24 | 1973-01-23 | S Piatti | Valve actuating arrangement for internal combustion engines |
GB8610727D0 (en) | 1986-05-01 | 1986-06-04 | Walters Eng Consultant Ltd Chr | Valve lift mechanism |
US4850311A (en) * | 1988-12-09 | 1989-07-25 | General Motors Corporation | Three dimensional cam cardanic follower valve lifter |
US5067450A (en) | 1989-03-14 | 1991-11-26 | Aisin Seiki Kabushiki Kaisha | Variable valve timing system having rotational vibration damping |
US5070827A (en) * | 1991-04-01 | 1991-12-10 | General Motors Corporation | Low mass valve lifters |
KR0158899B1 (ko) * | 1992-09-30 | 1998-12-15 | 와다 요시히로 | 엔진의 밸브시프트타이밍 제어장치 |
JP3420661B2 (ja) * | 1995-07-14 | 2003-06-30 | 株式会社オティックス | 可変動弁機構 |
US5673661A (en) * | 1995-11-27 | 1997-10-07 | Jesel; Daniel Henry | Valve lifter |
JPH1030413A (ja) * | 1996-07-12 | 1998-02-03 | Toyota Motor Corp | 内燃機関のバルブ特性制御装置 |
JP3344236B2 (ja) * | 1996-10-23 | 2002-11-11 | トヨタ自動車株式会社 | 内燃機関用バルブ駆動装置 |
EP0942153B1 (en) * | 1996-11-19 | 2002-03-20 | Toyota Jidosha Kabushiki Kaisha | Variable valve performance apparatus for engine |
KR19980049864A (ko) * | 1996-12-20 | 1998-09-15 | 박병재 | 내연기관의 흡,배기 밸브 개폐 가변장치 |
US5803030A (en) * | 1997-01-10 | 1998-09-08 | Cole; Kenneth Wade | Phase adjustable cam drive |
EP1164258A3 (en) * | 1997-03-27 | 2003-01-02 | Toyota Jidosha Kabushiki Kaisha | Valve driving apparatus for engine |
-
1999
- 1999-10-15 ES ES99949234T patent/ES2190661T3/es not_active Expired - Lifetime
- 1999-10-15 DE DE69905924T patent/DE69905924T2/de not_active Expired - Fee Related
- 1999-10-15 EP EP99949234A patent/EP1125039B1/en not_active Expired - Lifetime
- 1999-10-15 AT AT99949234T patent/ATE234418T1/de not_active IP Right Cessation
- 1999-10-15 WO PCT/GB1999/003412 patent/WO2000026511A1/en active IP Right Grant
- 1999-10-15 JP JP2000579870A patent/JP2002529635A/ja active Pending
- 1999-10-15 AU AU62208/99A patent/AU6220899A/en not_active Abandoned
- 1999-10-29 US US09/429,617 patent/US6474281B1/en not_active Expired - Fee Related
- 1999-10-29 GB GB9925628A patent/GB2341659B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69905924T2 (de) | 2004-01-15 |
US6474281B1 (en) | 2002-11-05 |
EP1125039B1 (en) | 2003-03-12 |
GB2341659A (en) | 2000-03-22 |
WO2000026511A1 (en) | 2000-05-11 |
EP1125039A1 (en) | 2001-08-22 |
GB2341659B (en) | 2002-03-27 |
AU6220899A (en) | 2000-05-22 |
DE69905924D1 (de) | 2003-04-17 |
ATE234418T1 (de) | 2003-03-15 |
GB9925628D0 (en) | 1999-12-29 |
JP2002529635A (ja) | 2002-09-10 |
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