EP1983162A2 - Dispositif de connexion des ensembles de culbuteur, de soupape ou à injection dans des moteurs de combustion interne - Google Patents

Dispositif de connexion des ensembles de culbuteur, de soupape ou à injection dans des moteurs de combustion interne Download PDF

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Publication number
EP1983162A2
EP1983162A2 EP08005470A EP08005470A EP1983162A2 EP 1983162 A2 EP1983162 A2 EP 1983162A2 EP 08005470 A EP08005470 A EP 08005470A EP 08005470 A EP08005470 A EP 08005470A EP 1983162 A2 EP1983162 A2 EP 1983162A2
Authority
EP
European Patent Office
Prior art keywords
connection device
button
internal combustion
valve
recess
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Withdrawn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
EP08005470A
Other languages
German (de)
English (en)
Other versions
EP1983162A3 (fr
Inventor
Umberto Fasanotto
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.)
GNUTTI CARLO SpA
Original Assignee
GNUTTI CARLO SpA
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 GNUTTI CARLO SpA filed Critical GNUTTI CARLO SpA
Publication of EP1983162A2 publication Critical patent/EP1983162A2/fr
Publication of EP1983162A3 publication Critical patent/EP1983162A3/fr
Withdrawn legal-status Critical Current

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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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • 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
    • F01L1/14—Tappets; Push rods
    • F01L1/146—Push-rods
    • 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
    • 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
    • F01L2810/00—Arrangements solving specific problems in relation with valve gears
    • F01L2810/02—Lubrication

Definitions

  • the present invention relates to a connection device for connecting rocker, valve or injection assemblies in internal combustion engines.
  • the above ball coupling comprises a spherical head screw or insert, including a vertical element coupled to the rocker assembly, for engaging in a recess defined in a button element which, by engaging with a driving plate, allows force to be transferred to a component to be driven, usually comprising the valve or injection assembly, as is shown in figures 1 and 2 .
  • Said button is held on the insert head portion by a resilient element or O-ring, preventing the button from disengaging from its recess, to be properly mounted on the engine.
  • the rocker conventionally comprises a plurality of throughgoing holes communicating with a further hole formed in the insert leading to the recess, therethrough yet another hole for allowing oil to be directed toward the plate is formed.
  • lubricating oil is conveyed to the plate through the lubricating hole which is normally axially directed or which, in same cases, is slanted, as shown in figure 3 , to facilitate a proper distribution of the lubricating oil due to the natural trend of the button to turn on itself.
  • said button is made by a turning process, or a more inexpensive cold pressing process, and then it being further thermally processed to achieve the desired mechanical properties. Finally, said button is further subjected to optional finishing operations.
  • the aim of the present invention is to overcome the above mentioned problem, by providing a connection device for connecting a rocker assembly with a valve assembly, or an injection assembly in an internal combustion engine, allowing the lubricating oil to be optimally distributed even if the device is made by a cold pressing method.
  • a main object of the invention is to provide such a connection device which always provide an even distribution of the lubricating oil on contacting surfaces between the button and driving plate.
  • Yet another object of the present invention is to provide such a connection device which, owing to its specifically designed construction, is very reliable and safe in operation.
  • Yet another object of the present invention is to provide such a connection device which can be easily made starting from easily available elements and materials, and which, moreover, is very competitive from a mere economic standpoint.
  • connection device for connecting a rocker assembly, a valve assembly or an injection assembly, in an internal combustion engine
  • said connection device comprising a button defining a recess for receiving an insert coupled to said rocker assembly, said recess having lubricating hole
  • said connection device also comprises, on a face of, said button contacting a driving plate, a slot extending from said lubricating hole to an outer periphery of said button.
  • connection device for connecting a rocker assembly, a valve assembly or an injection assembly in an internal combustion engine, which is illustrated, by way of an indicative, but not limitative example, in the accompanying drawings, where:
  • connection device for connecting a rocker assembly, a valve assembly or an injection assembly in an internal combustion engine comprises a button, generally indicated by the reference number 1, defining a substantially half-spherical recess 2, for engaging therein a spherical head 3 of an insert or screw 4, to be coupled to a rocker 5.
  • Said insert or screw 4 comprises a conventional lubricating duct.6 communicating with a further duct 7 defined in the rocker and leading to the recess where a hole 8 facing to a driving plate 9 associated with a spring 10 for coupling to a valve or an injection assembly is formed.
  • the main feature of the invention is that, on the button surface or face contacting the driving plate 9, a slot 20, extending from the hole 8 and leading to the button periphery, is formed.
  • the slot 10 which preferably radially extends, operates to facilitate a distribution of oil through the overall contacting surface, owing to the trend of the button to turn on itself, as the engine is operated, thereby spreading lubricating oil through the overall contacting surface.
  • the small size of the slot is such as not to considerably increase the contact effort on the remaining contact surface, thereby the original function of the button is held unalterated.
  • a further important feature to be stressed is that the slot can be directly made by a cold pressing operation, at a very low cost.
  • the used materials, as well as the contingent size and shapes can be any, depending to requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
EP08005470A 2007-04-17 2008-03-25 Dispositif de connexion des ensembles de culbuteur, de soupape ou à injection dans des moteurs de combustion interne Withdrawn EP1983162A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000779A ITMI20070779A1 (it) 2007-04-17 2007-04-17 Dispositivo di connessione tra il bilanciere e le valvole od il gruppo di iniezione in motori a combustione interna

Publications (2)

Publication Number Publication Date
EP1983162A2 true EP1983162A2 (fr) 2008-10-22
EP1983162A3 EP1983162A3 (fr) 2009-12-09

Family

ID=39688847

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08005470A Withdrawn EP1983162A3 (fr) 2007-04-17 2008-03-25 Dispositif de connexion des ensembles de culbuteur, de soupape ou à injection dans des moteurs de combustion interne

Country Status (3)

Country Link
US (1) US20080257293A1 (fr)
EP (1) EP1983162A3 (fr)
IT (1) ITMI20070779A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114542228A (zh) * 2022-02-23 2022-05-27 常柴股份有限公司 一种能够降低损耗的内燃机推杆

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4578547B2 (ja) * 2008-07-10 2010-11-10 株式会社オティックス 潤滑油供給路を有するロッカーアーム
JP5241533B2 (ja) * 2009-01-19 2013-07-17 株式会社オティックス ロッカアーム
US9551242B2 (en) * 2014-11-24 2017-01-24 Caterpillar Inc. Rocker arm for engines
JP6899939B1 (ja) * 2020-03-26 2021-07-07 株式会社オティックス 動弁装置
DE102021100952A1 (de) 2021-01-19 2022-07-21 Schaeffler Technologies AG & Co. KG Kipphebel in Massivbauweise für einen Ventiltrieb einer Schwerlastbrennkraftmaschine
DE102021102690A1 (de) 2021-02-05 2022-08-11 Schaeffler Technologies AG & Co. KG Kipphebel in Massivbauweise für einen Ventiltrieb einer Schwerlastbrennkraftmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH646498A5 (de) * 1980-05-07 1984-11-30 Faester Gmbh & Co Kg Schraube mit kreuzfoermig im schraubenkopf angeordneten schraubendrehschlitzen.
US6273042B1 (en) * 1999-06-14 2001-08-14 Amsted Industries Incorporated Rocker assemblies for control of engine valves and method of assembling such rocker assemblies
US6807932B2 (en) * 2001-11-22 2004-10-26 Ntn Corporation Rocker arm
SE528784C2 (sv) * 2005-06-07 2007-02-13 Scania Cv Abp Anordning för överföring av rörelse från en vipparm till en ventilinrättning hos en förbränningsmotor och en förbränningsmotor innefattande en sådan anordning

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114542228A (zh) * 2022-02-23 2022-05-27 常柴股份有限公司 一种能够降低损耗的内燃机推杆

Also Published As

Publication number Publication date
ITMI20070779A1 (it) 2008-10-18
US20080257293A1 (en) 2008-10-23
EP1983162A3 (fr) 2009-12-09

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