GB2568044A - Valve train assembly - Google Patents

Valve train assembly Download PDF

Info

Publication number
GB2568044A
GB2568044A GB1718015.9A GB201718015A GB2568044A GB 2568044 A GB2568044 A GB 2568044A GB 201718015 A GB201718015 A GB 201718015A GB 2568044 A GB2568044 A GB 2568044A
Authority
GB
United Kingdom
Prior art keywords
valve
hydraulic
piston
valves
accumulator
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.)
Withdrawn
Application number
GB1718015.9A
Other languages
English (en)
Other versions
GB201718015D0 (en
Inventor
Contarin Fabiano
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.)
Eaton SRL
Original Assignee
Eaton SRL
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 Eaton SRL filed Critical Eaton SRL
Priority to GB1718015.9A priority Critical patent/GB2568044A/en
Publication of GB201718015D0 publication Critical patent/GB201718015D0/en
Priority to PCT/EP2018/079768 priority patent/WO2019086492A1/fr
Publication of GB2568044A publication Critical patent/GB2568044A/en
Withdrawn legal-status Critical Current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
    • 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
    • F01L1/047—Camshafts
    • 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
    • F01L1/12—Transmitting gear between valve drive and 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • 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
    • 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
    • F01L13/0036—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 the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
GB1718015.9A 2017-11-01 2017-11-01 Valve train assembly Withdrawn GB2568044A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1718015.9A GB2568044A (en) 2017-11-01 2017-11-01 Valve train assembly
PCT/EP2018/079768 WO2019086492A1 (fr) 2017-11-01 2018-10-30 Ensemble soupape et dispositif de commande

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1718015.9A GB2568044A (en) 2017-11-01 2017-11-01 Valve train assembly

Publications (2)

Publication Number Publication Date
GB201718015D0 GB201718015D0 (en) 2017-12-13
GB2568044A true GB2568044A (en) 2019-05-08

Family

ID=60580049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1718015.9A Withdrawn GB2568044A (en) 2017-11-01 2017-11-01 Valve train assembly

Country Status (2)

Country Link
GB (1) GB2568044A (fr)
WO (1) WO2019086492A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2608166A (en) * 2021-06-24 2022-12-28 Mechadyne Int Ltd Cam switching mechanism

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115013108A (zh) * 2022-07-20 2022-09-06 山东大学 一种多变开启次数的内燃机液压气门机构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6267098B1 (en) * 1997-11-24 2001-07-31 Diesel Engine Retarders, Inc. Valve operating system having full authority lost motion
WO2013114041A1 (fr) * 2012-02-02 2013-08-08 Melchior Jean F Dispositif de commande variable d'au moins une soupape, par exemple pour un moteur alternatif
DE102012214645A1 (de) * 2012-08-17 2014-02-20 Mahle International Gmbh Brennkraftmaschine mit zwei gegenläufigen Nockenwellen
WO2015167412A1 (fr) * 2014-04-29 2015-11-05 Ford Otomotiv Sanayi Anonim Sirketi Système de réglage de distribution

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59224411A (ja) * 1983-06-02 1984-12-17 Mitsuwa Seiki Co Ltd 弁開閉装置
US6125828A (en) * 1995-08-08 2000-10-03 Diesel Engine Retarders, Inc. Internal combustion engine with combined cam and electro-hydraulic engine valve control
DE102007042893A1 (de) * 2007-09-08 2009-03-12 Schaeffler Kg Ventilsteuerung für Hubkolbenbrennkraftmaschinen
EP3184778B1 (fr) * 2015-12-24 2020-02-05 C.R.F. Società Consortile per Azioni Système d'actionnement variable d'une soupape d'un moteur à combustion interne

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6267098B1 (en) * 1997-11-24 2001-07-31 Diesel Engine Retarders, Inc. Valve operating system having full authority lost motion
WO2013114041A1 (fr) * 2012-02-02 2013-08-08 Melchior Jean F Dispositif de commande variable d'au moins une soupape, par exemple pour un moteur alternatif
DE102012214645A1 (de) * 2012-08-17 2014-02-20 Mahle International Gmbh Brennkraftmaschine mit zwei gegenläufigen Nockenwellen
WO2015167412A1 (fr) * 2014-04-29 2015-11-05 Ford Otomotiv Sanayi Anonim Sirketi Système de réglage de distribution

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2608166A (en) * 2021-06-24 2022-12-28 Mechadyne Int Ltd Cam switching mechanism

Also Published As

Publication number Publication date
WO2019086492A1 (fr) 2019-05-09
GB201718015D0 (en) 2017-12-13

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)