IT1319908B1 - Valvole per motori endotermici ad alzate e fasature variabili. - Google Patents
Valvole per motori endotermici ad alzate e fasature variabili.Info
- Publication number
- IT1319908B1 IT1319908B1 IT2000TO000131A ITTO20000131A IT1319908B1 IT 1319908 B1 IT1319908 B1 IT 1319908B1 IT 2000TO000131 A IT2000TO000131 A IT 2000TO000131A IT TO20000131 A ITTO20000131 A IT TO20000131A IT 1319908 B1 IT1319908 B1 IT 1319908B1
- Authority
- IT
- Italy
- Prior art keywords
- endothermal
- timings
- motors
- valves
- lifts
- Prior art date
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
- F01L1/12—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
- F01L1/02—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
- F01L1/0532—Camshafts overhead type the cams being directly in contact with the driven valve
-
- 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
- F01L13/0031—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 tappet or pushrod length
-
- 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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
- F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
-
- 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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34446—Fluid accumulators for the feeding circuit
-
- 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
- F01L2307/00—Preventing the rotation of tappets
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)
- Output Control And Ontrol Of Special Type Engine (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2000TO000131A IT1319908B1 (it) | 2000-02-10 | 2000-02-10 | Valvole per motori endotermici ad alzate e fasature variabili. |
EP01830069A EP1136664A3 (en) | 2000-02-10 | 2001-02-05 | Valves with variable lifts and timings |
US09/780,352 US6516760B2 (en) | 2000-02-10 | 2001-02-12 | Valves for i.c. engines with variable lifts and timings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2000TO000131A IT1319908B1 (it) | 2000-02-10 | 2000-02-10 | Valvole per motori endotermici ad alzate e fasature variabili. |
Publications (2)
Publication Number | Publication Date |
---|---|
ITTO20000131A1 ITTO20000131A1 (it) | 2001-08-10 |
IT1319908B1 true IT1319908B1 (it) | 2003-11-12 |
Family
ID=11457403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2000TO000131A IT1319908B1 (it) | 2000-02-10 | 2000-02-10 | Valvole per motori endotermici ad alzate e fasature variabili. |
Country Status (3)
Country | Link |
---|---|
US (1) | US6516760B2 (it) |
EP (1) | EP1136664A3 (it) |
IT (1) | IT1319908B1 (it) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1380728B1 (de) * | 2002-07-12 | 2005-04-06 | AVL List GmbH | Ventiltriebseinrichtung |
EP1493902A1 (de) * | 2003-06-30 | 2005-01-05 | Ford Global Technologies, LLC, A subsidary of Ford Motor Company | Einrichtung zur Ventilabschaltung |
EP1902200A1 (en) * | 2005-06-27 | 2008-03-26 | BorgWarner Inc. | Actuator and control method for variable valve timing (vvt) mechanism |
KR101251712B1 (ko) | 2007-12-13 | 2013-04-05 | 현대자동차주식회사 | 가변식 밸브 리프트를 위한 태핏 구조 |
DE102009006894B4 (de) * | 2009-01-28 | 2010-10-14 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Vorrichtung zur Schaltbetätigung eines hydraulischen Ventilspielausgleichselements |
CN102482998B (zh) * | 2009-06-17 | 2017-03-22 | 法雷奥电机控制系统公司 | 包括运动转换装置的阀 |
KR20120017982A (ko) * | 2010-08-20 | 2012-02-29 | 현대자동차주식회사 | 전기-유압 가변 밸브 리프트 장치 |
KR101251818B1 (ko) * | 2011-10-04 | 2013-04-09 | 영신정공 주식회사 | 복수의 작동 수단에 의해 구동되는 밸브 리프트 장치 |
FR3004752A1 (fr) * | 2013-04-22 | 2014-10-24 | Peugeot Citroen Automobiles Sa | Moteur a combustion de vehicule automobile a desactivation de cylindre hydraulique |
WO2022104305A1 (en) * | 2020-11-10 | 2022-05-19 | Cummins Inc. | Tappet assembly for valve lift profile modification |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1191992B (de) * | 1961-10-11 | 1965-04-29 | Kloeckner Humboldt Deutz Ag | Ventilgesteuerte Hubkolbenbrennkraftmaschine mit hydraulisch betaetigtem Stellglied zur Veraenderung des Ventilhubes |
JPS59101516A (ja) * | 1982-11-30 | 1984-06-12 | Hino Motors Ltd | 内燃機関のバルブの開閉装置 |
JPH0612058B2 (ja) * | 1984-12-27 | 1994-02-16 | トヨタ自動車株式会社 | 可変バルブタイミング・リフト装置 |
US4892067A (en) * | 1988-07-25 | 1990-01-09 | Paul Marius A | Valve control system for engines |
US5002022A (en) * | 1989-08-30 | 1991-03-26 | Cummins Engine Company, Inc. | Valve control system with a variable timing hydraulic link |
DE4124184A1 (de) * | 1991-07-20 | 1993-01-21 | Schaeffler Waelzlager Kg | Hydraulischer tassenstoessel |
DE4221097A1 (de) * | 1992-06-26 | 1994-01-05 | Rexroth Mannesmann Gmbh | Ventilsteuerung für ein Ventil einer Brennkraftmaschine |
IT1285853B1 (it) * | 1996-04-24 | 1998-06-24 | Fiat Ricerche | Motore a combustione interna con valvole ad azionamento variabile. |
GB9612178D0 (en) * | 1996-06-11 | 1996-08-14 | Ricardo Consulating Engineers | Hydraulic tappets |
-
2000
- 2000-02-10 IT IT2000TO000131A patent/IT1319908B1/it active
-
2001
- 2001-02-05 EP EP01830069A patent/EP1136664A3/en not_active Withdrawn
- 2001-02-12 US US09/780,352 patent/US6516760B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ITTO20000131A1 (it) | 2001-08-10 |
EP1136664A3 (en) | 2001-12-19 |
US20010013325A1 (en) | 2001-08-16 |
EP1136664A2 (en) | 2001-09-26 |
US6516760B2 (en) | 2003-02-11 |
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