WO2010006599A1 - Système d'actionnement de soupapes d'échappement entraîné par came pour moteur diesel à deux temps de grande dimension - Google Patents

Système d'actionnement de soupapes d'échappement entraîné par came pour moteur diesel à deux temps de grande dimension Download PDF

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Publication number
WO2010006599A1
WO2010006599A1 PCT/DK2008/000266 DK2008000266W WO2010006599A1 WO 2010006599 A1 WO2010006599 A1 WO 2010006599A1 DK 2008000266 W DK2008000266 W DK 2008000266W WO 2010006599 A1 WO2010006599 A1 WO 2010006599A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
pressure
exhaust valve
diesel engine
stroke diesel
Prior art date
Application number
PCT/DK2008/000266
Other languages
English (en)
Inventor
Erik Due Pedersen
Original Assignee
Man Diesel Filial Af Man Diesel Se, Tyskland
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 Diesel Filial Af Man Diesel Se, Tyskland filed Critical Man Diesel Filial Af Man Diesel Se, Tyskland
Priority to KR1020117000862A priority Critical patent/KR101253118B1/ko
Priority to CN200880130384.1A priority patent/CN102112708B/zh
Priority to PCT/DK2008/000266 priority patent/WO2010006599A1/fr
Priority to JP2011511974A priority patent/JP5079916B2/ja
Publication of WO2010006599A1 publication Critical patent/WO2010006599A1/fr

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
    • 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
    • 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
    • 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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/04—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure using fluid, other than fuel, for injection-valve actuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/105—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive hydraulic drive

Definitions

  • the portion of the additional volume of hydraulic fluid generated by the hydraulic piston pumps and caused by the increased lift that is not diverted from the hydraulic push rod can be used to create an additional length of opening stroke of the exhaust valve.
  • the piston rod 14 is connected to the crosshead 22 with four screws.
  • the piston rod 14 has two coaxial bores (not visible in the drawings) which, in conjunction with a cooling oil pipe, forms the inlet and outlet for cooling oil for the piston 13.
  • the cylinder liners 6 are carried by the cylinder frame 5.
  • the cylinder liners 6 are made of alloyed cast iron and are suspended in the cylinder frame 5 by means of a low situated flange. The uppermost part of the liner is surrounded by cast iron cooling jacket.
  • the cylinder liners 6 have drilled holes (not shown) for cylinder lubrication.
  • Figure 8 illustrates a second embodiment of the invention, which is essentially identical with the first embodiment except that this embodiment is provided with means to add an additional amount of hydraulic fluid from the control pressure conduit 42 to the hydraulic push rod. Further, the cylinder lubricators 52 are operated with hydraulic fluid from the common high-pressure hydraulic conduit 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Valve Device For Special Equipments (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention porte sur un moteur diesel à deux temps de grande dimension (1) avec un système d'actionnement de soupapes d'échappement comprenant un arbre à cames (28) et des poussoirs hydrauliques qui comprennent une pompe à piston (32) entraînée par l'arbre à cames couplé par l'intermédiaire d'un conduit (36) à un actionneur de soupape d'échappement hydraulique (34) pour déplacer la soupape d'échappement (11) concernée. L'arbre à cames comporte une came d'échappement (29) pour chaque cylindre, et la came d'échappement est profilée avec une levée accrue (30) dépassant la levée requise pour l'ouverture de la soupape d'échappement. Une partie du volume supplémentaire de fluide hydraulique généré par la course accrue des pompes à piston hydrauliques est dérivée du poussoir hydraulique et distribuée à un composant consommant un fluide hydraulique sous pression qui est associé au moteur. L'autre partie du volume supplémentaire de fluide hydraulique conduit à une levée de soupape d'échappement supplémentaire. L'énergie stockée dans le ressort à air (33) poussant la soupape d'échappement vers sa position fermée est renvoyée à l'arbre à cames durant la course de retour de la soupape d'échappement.
PCT/DK2008/000266 2008-07-14 2008-07-14 Système d'actionnement de soupapes d'échappement entraîné par came pour moteur diesel à deux temps de grande dimension WO2010006599A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020117000862A KR101253118B1 (ko) 2008-07-14 2008-07-14 대형 ２ 행정 디젤 엔진을 위한 캠 구동 배기 밸브 작동 시스템
CN200880130384.1A CN102112708B (zh) 2008-07-14 2008-07-14 大型两冲程柴油发动机的凸轮驱动排气阀致动系统
PCT/DK2008/000266 WO2010006599A1 (fr) 2008-07-14 2008-07-14 Système d'actionnement de soupapes d'échappement entraîné par came pour moteur diesel à deux temps de grande dimension
JP2011511974A JP5079916B2 (ja) 2008-07-14 2008-07-14 大型２サイクルディーゼルエンジンのためのカム駆動型排気弁作動システム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DK2008/000266 WO2010006599A1 (fr) 2008-07-14 2008-07-14 Système d'actionnement de soupapes d'échappement entraîné par came pour moteur diesel à deux temps de grande dimension

Publications (1)

Publication Number Publication Date
WO2010006599A1 true WO2010006599A1 (fr) 2010-01-21

Family

ID=41550029

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2008/000266 WO2010006599A1 (fr) 2008-07-14 2008-07-14 Système d'actionnement de soupapes d'échappement entraîné par came pour moteur diesel à deux temps de grande dimension

Country Status (4)

Country Link
JP (1) JP5079916B2 (fr)
KR (1) KR101253118B1 (fr)
CN (1) CN102112708B (fr)
WO (1) WO2010006599A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0916872A2 (pt) * 2008-08-04 2017-06-20 Firestone Polymers Llc produtos de adição de polímeros de metátese e sua preparação
US9828888B2 (en) * 2012-06-18 2017-11-28 Francois Boeck Direct timing system for internal combustion engine
EP3015664B1 (fr) * 2014-10-31 2017-06-28 Winterthur Gas & Diesel AG Procede de commutation rapide d'un moteur, produit de programme d'ordinateur et moteur
JP6703868B2 (ja) * 2016-03-08 2020-06-03 三菱重工業株式会社 動弁装置及びクロスヘッド式内燃機関
JP6826371B2 (ja) * 2016-03-24 2021-02-03 三菱重工業株式会社 液圧駆動ピストン装置及びクロスヘッド式内燃機関
US10641140B2 (en) * 2017-05-12 2020-05-05 Caterpillar Inc. Hydraulic early engine exhaust valve opening system
CN109812558A (zh) * 2017-11-20 2019-05-28 光阳工业股份有限公司 车辆的油压驱动装置
JP7214980B2 (ja) * 2018-05-30 2023-01-31 株式会社Ihi 圧縮比可変機構

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515307A1 (fr) * 1991-05-22 1992-11-25 New Sulzer Diesel Ag Dispositif de commande pour des soupapes d'échappement d'un moteur à combustion interne
KR100845685B1 (ko) * 2007-03-30 2008-07-11 맨 디젤 에이/에스 대형 2행정 디젤 엔진용 캠 구동 연료 분사 시스템

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051530A1 (fr) * 1980-11-04 1982-05-12 The Bendix Corporation Sytème de réglage pour commander l'alimentation en carburant d'un moteur à combustion interne
JPS6238812A (ja) * 1985-08-12 1987-02-19 Mitsubishi Heavy Ind Ltd 排気弁開弁タイミング自動進角装置
JPH09317418A (ja) * 1996-05-27 1997-12-09 Mitsubishi Heavy Ind Ltd 油圧駆動式排気弁を有する２サイクルディーゼル機関
DK173421B1 (da) * 1997-05-16 2000-10-02 Man B & W Diesel As Hydrauliksystem til en totakts krydshovedmotor og med enstrenget højtryksfødeledning
JP2000018013A (ja) * 1998-07-03 2000-01-18 Mitsubishi Heavy Ind Ltd 内燃機関の圧縮比調整装置
JP4574762B2 (ja) * 1998-08-28 2010-11-04 ヴェルトジィレ シュヴァイツ アクチェンゲゼルシャフト 往復ピストンエンジンの燃料噴射装置
JP2004084670A (ja) * 2002-08-28 2004-03-18 Man B & W Diesel As 水圧で作動されるバルブ
ATE444442T1 (de) * 2006-04-12 2009-10-15 Man B & W Diesel As Grosser zweitakt-kreuzkopf-dieselmotor vom gleichstromtyp
JP4121531B2 (ja) * 2006-05-12 2008-07-23 エムエーエヌ・ディーゼル・エーエス 大型２サイクルディーゼルエンジンのための燃料循環式コモンレール燃料噴射装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515307A1 (fr) * 1991-05-22 1992-11-25 New Sulzer Diesel Ag Dispositif de commande pour des soupapes d'échappement d'un moteur à combustion interne
KR100845685B1 (ko) * 2007-03-30 2008-07-11 맨 디젤 에이/에스 대형 2행정 디젤 엔진용 캠 구동 연료 분사 시스템

Also Published As

Publication number Publication date
JP5079916B2 (ja) 2012-11-21
CN102112708B (zh) 2014-06-18
CN102112708A (zh) 2011-06-29
KR20110018440A (ko) 2011-02-23
KR101253118B1 (ko) 2013-04-10
JP2011522162A (ja) 2011-07-28

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