EP1234957A3 - Valve drive in an internal combustion engine - Google Patents

Valve drive in an internal combustion engine Download PDF

Info

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
Application number
EP02002529A
Other languages
German (de)
French (fr)
Other versions
EP1234957A2 (en
EP1234957B1 (en
Inventor
Stephan Laiminger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Innio Jenbacher GmbH and Co OG
Original Assignee
Jenbacher AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jenbacher AG filed Critical Jenbacher AG
Priority to AT02002529T priority Critical patent/ATE263309T1/en
Publication of EP1234957A2 publication Critical patent/EP1234957A2/en
Publication of EP1234957A3 publication Critical patent/EP1234957A3/en
Application granted granted Critical
Publication of EP1234957B1 publication Critical patent/EP1234957B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

The method and apparatus are for continuously controlling a quantity of air drawn into an internal combustion engine by varying operating characteristics of an intake valve. A control unit uses a valve lift included in a range wherein the quantity of air is determined only by a valve lift and a working angle of the intake valve in a very low load operating range containing during idling. In contrast, in operating ranges, except the very low load operating range, the control unit uses a valve lift included in a range wherein the quantity of air is determined by the valve lift and the working angle of the intake valve, and a phase of a central angle of the working angle of the intake valve.
EP02002529A 2001-02-21 2002-02-04 Valve drive in an internal combustion engine Expired - Lifetime EP1234957B1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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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