EP1234957A3 - Valve drive in an internal combustion engine - Google Patents
Valve drive in an internal combustion engine Download PDFInfo
- Publication number
- EP1234957A3 EP1234957A3 EP02002529A EP02002529A EP1234957A3 EP 1234957 A3 EP1234957 A3 EP 1234957A3 EP 02002529 A EP02002529 A EP 02002529A EP 02002529 A EP02002529 A EP 02002529A EP 1234957 A3 EP1234957 A3 EP 1234957A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion engine
- internal combustion
- intake valve
- valve
- range
- 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.)
- Granted
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
- 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
- F01L1/02—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
- F01L1/34—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT02002529T ATE263309T1 (en) | 2001-02-21 | 2002-02-04 | VALVE DRIVE FOR AN INTERNAL COMBUSTION ENGINE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT2682001 | 2001-02-21 | ||
AT2682001 | 2001-02-21 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1234957A2 EP1234957A2 (en) | 2002-08-28 |
EP1234957A3 true EP1234957A3 (en) | 2003-01-08 |
EP1234957B1 EP1234957B1 (en) | 2004-03-31 |
Family
ID=3670472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02002529A Expired - Lifetime EP1234957B1 (en) | 2001-02-21 | 2002-02-04 | Valve drive in an internal combustion engine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1234957B1 (en) |
AT (1) | ATE263309T1 (en) |
DE (1) | DE50200316D1 (en) |
ES (1) | ES2217209T3 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004048072A1 (en) * | 2004-10-02 | 2006-04-13 | Ina-Schaeffler Kg | Variable valve train of an internal combustion engine |
FI124120B (en) * | 2008-07-31 | 2014-03-31 | Wärtsilä Finland Oy | Steering arrangement in piston engine |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1018880B (en) * | 1955-05-31 | 1957-11-07 | Albert Pomutz | Hydraulic control, especially for the valves of piston engines |
EP0024994A1 (en) * | 1979-08-30 | 1981-03-11 | Societe D'etudes De Machines Thermiques S.E.M.T. | Process and device for improving the performance of an internal-combustion engine by selectively varying the compression ratio according to engine load |
DE4111610A1 (en) * | 1990-07-27 | 1992-01-30 | Audi Ag | Engine valve with hydraulic tappet - makes use of pin to actuate valve within tappet |
US5163389A (en) * | 1991-03-28 | 1992-11-17 | Aisin Seiki Kabushiki Kaisha | Hydraulic valve lifter having function to stop valve drive |
DE4124184A1 (en) * | 1991-07-20 | 1993-01-21 | Schaeffler Waelzlager Kg | Hydraulic valve cup lifter - has axially adjustable sleeve co-axial with plunger and cup, and one or more bores lockable by cup |
DE19653459A1 (en) * | 1996-12-20 | 1998-06-25 | Schaeffler Waelzlager Ohg | Tappet for a valve train of an internal combustion engine |
-
2002
- 2002-02-04 DE DE50200316T patent/DE50200316D1/en not_active Expired - Fee Related
- 2002-02-04 ES ES02002529T patent/ES2217209T3/en not_active Expired - Lifetime
- 2002-02-04 AT AT02002529T patent/ATE263309T1/en not_active IP Right Cessation
- 2002-02-04 EP EP02002529A patent/EP1234957B1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1018880B (en) * | 1955-05-31 | 1957-11-07 | Albert Pomutz | Hydraulic control, especially for the valves of piston engines |
EP0024994A1 (en) * | 1979-08-30 | 1981-03-11 | Societe D'etudes De Machines Thermiques S.E.M.T. | Process and device for improving the performance of an internal-combustion engine by selectively varying the compression ratio according to engine load |
DE4111610A1 (en) * | 1990-07-27 | 1992-01-30 | Audi Ag | Engine valve with hydraulic tappet - makes use of pin to actuate valve within tappet |
US5163389A (en) * | 1991-03-28 | 1992-11-17 | Aisin Seiki Kabushiki Kaisha | Hydraulic valve lifter having function to stop valve drive |
DE4124184A1 (en) * | 1991-07-20 | 1993-01-21 | Schaeffler Waelzlager Kg | Hydraulic valve cup lifter - has axially adjustable sleeve co-axial with plunger and cup, and one or more bores lockable by cup |
DE19653459A1 (en) * | 1996-12-20 | 1998-06-25 | Schaeffler Waelzlager Ohg | Tappet for a valve train of an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
EP1234957A2 (en) | 2002-08-28 |
ATE263309T1 (en) | 2004-04-15 |
EP1234957B1 (en) | 2004-03-31 |
DE50200316D1 (en) | 2004-05-06 |
ES2217209T3 (en) | 2004-11-01 |
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