FI124813B - Ohjausjärjestely ja menetelmä pakoventtiilin ohjaamiseksi - Google Patents

Ohjausjärjestely ja menetelmä pakoventtiilin ohjaamiseksi Download PDF

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Publication number
FI124813B
FI124813B FI20135017A FI20135017A FI124813B FI 124813 B FI124813 B FI 124813B FI 20135017 A FI20135017 A FI 20135017A FI 20135017 A FI20135017 A FI 20135017A FI 124813 B FI124813 B FI 124813B
Authority
FI
Finland
Prior art keywords
hydraulic fluid
cam
fluid chamber
cam follower
flow
Prior art date
Application number
FI20135017A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI20135017A (fi
Inventor
Saku Niinikangas
Magnus Sundsten
Original Assignee
Wärtsilä Finland Oy
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 Wärtsilä Finland Oy filed Critical Wärtsilä Finland Oy
Priority to FI20135017A priority Critical patent/FI124813B/fi
Priority to EP14700516.9A priority patent/EP2941546B1/de
Priority to PCT/FI2014/050002 priority patent/WO2014106688A1/en
Publication of FI20135017A publication Critical patent/FI20135017A/fi
Application granted granted Critical
Publication of FI124813B publication Critical patent/FI124813B/fi

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
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • 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
    • F01L13/08—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio
    • 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
    • F01L9/12—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 with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0242—Variable control of the exhaust valves only

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)
FI20135017A 2013-01-07 2013-01-07 Ohjausjärjestely ja menetelmä pakoventtiilin ohjaamiseksi FI124813B (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI20135017A FI124813B (fi) 2013-01-07 2013-01-07 Ohjausjärjestely ja menetelmä pakoventtiilin ohjaamiseksi
EP14700516.9A EP2941546B1 (de) 2013-01-07 2014-01-03 Steueranordnung und verfahren zur steuerung eines auslassventils
PCT/FI2014/050002 WO2014106688A1 (en) 2013-01-07 2014-01-03 Control arrangement and method for controlling an exhaust valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20135017 2013-01-07
FI20135017A FI124813B (fi) 2013-01-07 2013-01-07 Ohjausjärjestely ja menetelmä pakoventtiilin ohjaamiseksi

Publications (2)

Publication Number Publication Date
FI20135017A FI20135017A (fi) 2014-07-08
FI124813B true FI124813B (fi) 2015-01-30

Family

ID=49958495

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20135017A FI124813B (fi) 2013-01-07 2013-01-07 Ohjausjärjestely ja menetelmä pakoventtiilin ohjaamiseksi

Country Status (3)

Country Link
EP (1) EP2941546B1 (de)
FI (1) FI124813B (de)
WO (1) WO2014106688A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018166612A1 (en) * 2017-03-17 2018-09-20 Wärtsilä Finland Oy A control arrangement for a gas exchange valve in an internal combustion piston engine and method of operating a control arrangement for a gas exchange valve in an internal combustion engine
IT202200014827A1 (it) * 2022-07-14 2024-01-14 Punch Torino S P A Motore a combustione interna con sistema di aspirazione ottimizzato

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4164917A (en) * 1977-08-16 1979-08-21 Cummins Engine Company, Inc. Controllable valve tappet for use with dual ramp cam
DE4424802C1 (de) * 1994-07-14 1995-07-13 Daimler Benz Ag Vorrichtung zur Abgasrückführung bei einem Verbrennungsmotor
EP1492946B1 (de) * 2002-04-08 2011-11-02 Jacobs Vehicle Systems, Inc. Kompaktes totgangsystem für variable ventilbetätigung
US6883477B2 (en) * 2002-10-07 2005-04-26 Ricardo, Inc. Apparatus for deactivating an engine valve
JP2006233788A (ja) * 2005-02-23 2006-09-07 Hino Motors Ltd ターボチャージャ付きエンジンのバルブ駆動制御方法
FI124120B (fi) * 2008-07-31 2014-03-31 Wärtsilä Finland Oy Ohjausjärjestely mäntämoottorissa
FI123927B (fi) * 2009-07-07 2013-12-31 Waertsilae Finland Oy Mäntämoottorin imuventtiilin ohjausjärjestely
FI124085B (fi) * 2011-05-17 2014-03-14 Wärtsilä Finland Oy Monisylinterinen mäntämoottori
FI123065B (fi) * 2011-05-17 2012-10-31 Waertsilae Finland Oy Monisylinterinen mäntämoottori

Also Published As

Publication number Publication date
EP2941546B1 (de) 2016-12-21
WO2014106688A1 (en) 2014-07-10
EP2941546A1 (de) 2015-11-11
FI20135017A (fi) 2014-07-08

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