DK200001075A - Method for activating an exhaust valve for an internal combustion engine and such an exhaust valve - Google Patents

Method for activating an exhaust valve for an internal combustion engine and such an exhaust valve Download PDF

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Publication number
DK200001075A
DK200001075A DK200001075A DKPA200001075A DK200001075A DK 200001075 A DK200001075 A DK 200001075A DK 200001075 A DK200001075 A DK 200001075A DK PA200001075 A DKPA200001075 A DK PA200001075A DK 200001075 A DK200001075 A DK 200001075A
Authority
DK
Denmark
Prior art keywords
exhaust valve
spindle
combustion engine
internal combustion
activating
Prior art date
Application number
DK200001075A
Other languages
Danish (da)
Inventor
Henning Lindquist
Poul Cenker
Harro Anders Hoeg
Original Assignee
Man B & W Diesel As
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 Man B & W Diesel As filed Critical Man B & W Diesel As
Priority to DK200001075A priority Critical patent/DK176152B1/en
Priority to KR1020010040598A priority patent/KR100704369B1/en
Priority to CNB011224460A priority patent/CN1329635C/en
Priority to JP2001208641A priority patent/JP3857081B2/en
Publication of DK200001075A publication Critical patent/DK200001075A/en
Priority to KR1020060032501A priority patent/KR100704371B1/en
Application granted granted Critical
Publication of DK176152B1 publication Critical patent/DK176152B1/en

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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
    • 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
    • F01L9/14—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 the volume of the chamber being variable, e.g. for varying the lift or the timing of a 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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Lift Valve (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Description

PATENTKRAV 1. Fremgangsmåde til aktivering af en udstødsventil til en forbrændingsmotor, hvor udstødsventilen åbnes ved at en styreventils glider længdeforskydes til at sætte en højtryksport i forbindelse med et første trykkammer i en aktuator, hvori et aktuatorstempel forskydes sammen med udstødsventilens spindel i retning af dennes åbne stilling, og hvor styreventilens glider længdeforskydes til at sætte en lavtryksport i forbindelse med det første trykkammer, når udstødsventilen skal lukkes, kendetegnet ved, at udstødsventilens spindel længdeforskydes proportionalt, såsom i forholdet 1:1, med længdeforskydningen af styreventilens glider, at spindlen kan positioneres i udvalgte stillinger mellem fuldt åben og helt lukket stilling, og at udstødsventilens spindel bevæges i det væsentlige samtidig med styreventilens glider mellem udstødsventilens lukkede og åbne stillinger. 2. Fremgangsmåde ifølge krav 1, kendetegnet ved, at afslutningen af udstødsventilens lukkebevægelse styres aktivt af styreventilen. 3. Fremgangsmåde ifølge et af kravene 1-3, kendetegnet ved, at udstødsventilens bevægelseshastighed i en forudbestemt del af bevægelsesbanen ændres fra en motorcyklus til den næste. 4. Fremgangsmåde ifølge et af kravene 1-3, kendetegnet ved, at udstødsventilens åbnebevægelse standses i en åben mellemstilling inden den fuldt åbne stilling er opnået. 5. Fremgangsmåde ifølge et af kravene 2-4, kendetegnet ved, at spindlen ved afslutningen af lukkebevægelsen holdes i en ventila-tionsstilling, i hvilken der mellem udstødsventilens sædeflader er en ventilationsspalte, i en holdetid, hvorefter spindlen bevæges til fuldt lukket stilling. 6. Fremgangsmåde ifølge krav 5, kendetegnet ved, at spindlen holdes i ventilationsstillingen i en holdetid i intervallet fra 4 ms til 50 ms. 7. Fremgangsmåde ifølge krav 5 eller 6, kendetegnet ved, at spindlen i ventilationsstillingen holdes med sædefladerne i en indbyrdes afstand beliggende i intervallet fra 0,02 mm til 0,50 mm, fortrinsvis fra 0,05 mm til 0,2 mm. 8. Fremgangsmåde ifølge et af kravene 3-7, kendetegnet ved, at spindlen ved afslutningen af lukkebevægelsen først bevæges til i det væsentlige lukket stilling og umiddelbart derefter bevæges kortvarigt i åbneretningen og derefter til fuldt lukket stilling. 9. Fremgangsmåde ifølge krav 8, kendetegnet ved, at den kortvarige bevægelse i åbneretningen og bevægelsen til fuldt lukket stilling udføres inden for et tidsrum, der er mindre end 1/10 af det tidsrum, i hvilket udstødsventilen står åben. 10. Udstødsventil til en forbrændingsmotor, omfattende en ventilspindel med en hydraulisk aktuator, der har en stationær cylinder med i det mindste et første trykkammer og et tilhørende aktuatorstempel, og en styreventil, som i det mindste kan forbinde det første trykkammer med en højtryksport eller en lavtryksport i styreventilens hus, kendetegnet ved, at styreventilens hus med høj- og lavtryksportene er længdeforskydeligt, og at længdeforskydningen af styreventilens hus sker proportionalt med længdeforskydningen mellem åben og lukket stilling af udstødsventilens spindel. 11. Udstødsventil ifølge krav 10, kendetegnet ved, at styreventilens hus er længdeuforskydeligt i forhold til udstødsventilens spindel. 12. Udstødsventil ifølge krav 10 eller 11, kendetegnet ved, at styreventilens hus udgøres af aktuatorstemplet. 13. Udstødsventil ifølge et af kravene 10-12, kendetegnet ved, at styreventilens glider er længdeuforskydeligt monteret på en bevægelig magnetdel af en linearmotor, hvis stationære spoledel er monteret koaksialt i forlængelse af udstødsventilens spindel. 14. Udstødsventil ifølge krav 13, kendetegnet ved, at linearmotorens bevægelige del har større slaglængde end udstødsventilens maksimale vandring mellem lukket og fuldt åben stilling.A method for activating an exhaust valve for an internal combustion engine, wherein the exhaust valve is opened by sliding the length of a control valve to connect a high pressure port to a first pressure chamber in an actuator in which an actuator piston is displaced together with the spindle of the exhaust valve in the direction of opening. position and wherein the control valve slider is longitudinally displaced to connect a low pressure port to the first pressure chamber when the exhaust valve is to be closed, characterized in that the spindle valve spindle is lengthwise displaced proportionally, such as in the ratio 1: 1, with the longitudinal displacement of the control valve slider. in selected positions between fully open and fully closed position, and that the exhaust valve spindle is moved substantially simultaneously with the control valve slider between the exhaust and closed positions of the exhaust valve. A method according to claim 1, characterized in that the termination of the closing movement of the exhaust valve is actively controlled by the control valve. Method according to one of Claims 1 to 3, characterized in that the speed of movement of the exhaust valve in one predetermined part of the path of movement is changed from one motor cycle to the next. Method according to one of Claims 1 to 3, characterized in that the opening movement of the exhaust valve is stopped in an open intermediate position before the fully open position is obtained. Method according to one of Claims 2 to 4, characterized in that the spindle is held, at the end of the closing movement, in a ventilation position, in which between the seat surfaces of the exhaust valve is a ventilation slot, during a holding time, after which the spindle is moved to fully closed position. Method according to claim 5, characterized in that the spindle is held in the ventilation position for a holding time in the range of 4 ms to 50 ms. Method according to claim 5 or 6, characterized in that the spindle in the ventilation position is held with the seat surfaces at a distance from one another in the range of 0.02 mm to 0.50 mm, preferably from 0.05 mm to 0.2 mm. Method according to one of claims 3-7, characterized in that the spindle, at the end of the closing movement, is first moved to a substantially closed position and immediately thereafter briefly moved in the open direction and then to a fully closed position. Method according to claim 8, characterized in that the short-term movement in the open direction and the movement to the fully closed position is carried out within a period of less than 1/10 of the period in which the exhaust valve is open. Exhaust valve for an internal combustion engine, comprising a valve stem with a hydraulic actuator having a stationary cylinder having at least a first pressure chamber and an associated actuator piston, and a control valve which can at least connect the first pressure chamber to a high pressure port or a low pressure port in the control valve housing, characterized in that the control valve housing with the high and low pressure gates is longitudinally displaceable and that the longitudinal displacement of the control valve housing is proportional to the longitudinal displacement between open and closed position of the exhaust valve spindle. Exhaust valve according to claim 10, characterized in that the housing of the control valve is longitudinally displaceable relative to the spindle of the exhaust valve. Exhaust valve according to claim 10 or 11, characterized in that the housing of the control valve is constituted by the actuator piston. Exhaust valve according to one of claims 10-12, characterized in that the slides of the control valve are longitudinally displaceable mounted on a movable magnetic part of a linear motor, whose stationary coil part is mounted coaxially in extension of the spindle of the exhaust valve. Exhaust valve according to claim 13, characterized in that the movable part of the linear motor has a greater stroke than the maximum travel of the exhaust valve between closed and fully open position.

DK200001075A 2000-07-10 2000-07-10 Method of activating an exhaust valve for an internal combustion engine and such an exhaust valve DK176152B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DK200001075A DK176152B1 (en) 2000-07-10 2000-07-10 Method of activating an exhaust valve for an internal combustion engine and such an exhaust valve
KR1020010040598A KR100704369B1 (en) 2000-07-10 2001-07-07 A method for actuation of an exhaust valve for an internal combustion engine and such an exhaust valve
CNB011224460A CN1329635C (en) 2000-07-10 2001-07-09 Method for driving exhaust valve in internal combustion engine and exhaust valve thereof
JP2001208641A JP3857081B2 (en) 2000-07-10 2001-07-10 Method of operating an exhaust valve for an internal combustion engine and the exhaust valve
KR1020060032501A KR100704371B1 (en) 2000-07-10 2006-04-10 A method for acutation of an exhaust valve for an internal combustion engine and such an exhaust valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK200001075A DK176152B1 (en) 2000-07-10 2000-07-10 Method of activating an exhaust valve for an internal combustion engine and such an exhaust valve
DK200001075 2000-07-10

Publications (2)

Publication Number Publication Date
DK200001075A true DK200001075A (en) 2002-01-11
DK176152B1 DK176152B1 (en) 2006-10-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DK200001075A DK176152B1 (en) 2000-07-10 2000-07-10 Method of activating an exhaust valve for an internal combustion engine and such an exhaust valve

Country Status (4)

Country Link
JP (1) JP3857081B2 (en)
KR (2) KR100704369B1 (en)
CN (1) CN1329635C (en)
DK (1) DK176152B1 (en)

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Publication number Priority date Publication date Assignee Title
JP2004084670A (en) * 2002-08-28 2004-03-18 Man B & W Diesel As Valve operated with hydraulic pressure
DE102008027650A1 (en) * 2008-06-10 2009-12-17 Man Diesel Se Valve control for a gas exchange valve in an internal combustion engine
US8171900B2 (en) * 2010-01-11 2012-05-08 GM Global Technology Operations LLC Engine including hydraulically actuated valvetrain and method of valve overlap control
CN103953413B (en) * 2014-03-21 2016-05-04 哈尔滨工程大学 Multi-stage booster valve exhaust gear
CN103953412B (en) * 2014-03-21 2016-08-03 哈尔滨工程大学 Classification booster-type air bleeding valve
US9506382B2 (en) * 2015-03-30 2016-11-29 Caterpillar Inc. Variable valve actuator
CN105822377B (en) * 2016-05-04 2018-05-18 哈尔滨工程大学 Electromagnetic Control booster-type air distribution system
CN106194445B (en) * 2016-08-16 2019-12-13 上海交通大学 Exhaust valve self-rotating mechanism for low-speed diesel engine
CN106678426B (en) * 2017-03-25 2022-11-04 潍坊力创电子科技有限公司 Hydraulically actuated gas injection valve
ES2858577T3 (en) * 2019-01-15 2021-09-30 Contelec Ag Regulation system for one valve

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209737A (en) * 1962-06-27 1965-10-05 Mitsubishi Shipbuilding & Eng Valve operating device for internal combustion engine
DK148757C (en) * 1981-09-22 1986-02-17 B & W Diesel As EXHAUST VALVE FOR A Piston Incinerator
DE3675387D1 (en) * 1985-02-11 1990-12-06 Interatom ELECTROMAGNETIC-HYDRAULIC VALVE DRIVE FOR INTERNAL COMBUSTION ENGINES.
DK157145C (en) * 1987-11-05 1990-05-14 Man B & W Diesel Gmbh PROCEDURE FOR CONTROLING THE CLUTCH MOVEMENT OF A HYDRAULIC ACTIVATED EXHAUST VALVE IN A MARINE DIESEL ENGINE AND EXHAUST VALVE FOR USE IN EXERCISING THE PROCEDURE
JPH01134013A (en) * 1987-11-19 1989-05-26 Honda Motor Co Ltd Valve system control method and device for internal combustion engine
JP2570766Y2 (en) * 1991-08-23 1998-05-13 株式会社ユニシアジェックス Valve timing control device for internal combustion engine

Also Published As

Publication number Publication date
JP2002061506A (en) 2002-02-28
KR100704371B1 (en) 2007-04-09
KR20020005969A (en) 2002-01-18
CN1332313A (en) 2002-01-23
KR20060040624A (en) 2006-05-10
KR100704369B1 (en) 2007-04-05
JP3857081B2 (en) 2006-12-13
DK176152B1 (en) 2006-10-16
CN1329635C (en) 2007-08-01

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Legal Events

Date Code Title Description
PUP Patent expired

Expiry date: 20200710