EP1847691A3 - Roller element for a pivotable machine part - Google Patents

Roller element for a pivotable machine part Download PDF

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Publication number
EP1847691A3
EP1847691A3 EP07105921A EP07105921A EP1847691A3 EP 1847691 A3 EP1847691 A3 EP 1847691A3 EP 07105921 A EP07105921 A EP 07105921A EP 07105921 A EP07105921 A EP 07105921A EP 1847691 A3 EP1847691 A3 EP 1847691A3
Authority
EP
European Patent Office
Prior art keywords
roller element
machine part
roller
annular end
case
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Withdrawn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
EP07105921A
Other languages
German (de)
French (fr)
Other versions
EP1847691A2 (en
Inventor
Wolfgang Christgen
Thomas Kern
Jürgen KRETSCHMER
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.)
IHO Holding GmbH and Co KG
Original Assignee
Schaeffler KG
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 Schaeffler KG filed Critical Schaeffler KG
Publication of EP1847691A2 publication Critical patent/EP1847691A2/en
Publication of EP1847691A3 publication Critical patent/EP1847691A3/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Withdrawn legal-status Critical Current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
    • 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
    • F01L13/0021—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 rocker arm 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
    • 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
    • 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
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • 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
    • F01L13/0021—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 rocker arm ratio
    • F01L13/0026—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 rocker arm ratio by means of an eccentric
    • 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
    • F01L13/0063—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 cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
    • F01L2013/0068—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 cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot with an oscillating cam acting on the valve of the "BMW-Valvetronic" type
    • 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
    • F01L2305/00—Valve arrangements comprising rollers
    • F01L2305/02—Mounting of rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)
  • Transmission Devices (AREA)

Abstract

Vorgeschlagen ist ein Rollenelement (1a, 1 b) für ein schwenkbewegliches Maschinenteil (2), das vorzugsweise als Schwenkhebel (12a, 12b) eines hubvariablen Ventiltriebs einer Brennkraftmaschine ausgebildet ist. Das Rollenelement ist auf einem mit dem Maschinenteil verbundenen Rollenbolzen (3) gleit- oder wälzgelagert angeordnet und weist eine in dessen axialer Richtung gestufte Außenmantelfläche (6) mit benachbarten und im Durchmesser voneinander verschiedenen Axialabschnitten (7a, 8a, 9a, 7b, 8b, 9b) auf, zwischen denen jeweils eine Ringstirnfläche (10a, 11 a, 10b, 11 b) verläuft, wobei das Maschinenteil über wenigstens einen der Axialabschnitte in radialer Richtung des Rollenelements abgestützt und über die eine oder mehrere Ringstirnflächen in axialer Richtung des Rollenelements geführt ist. Dabei soll das Rollenelement in sich starr ausgebildet sein.

Figure imgaf001
Proposed is a roller element (1a, 1b) for a pivotable machine part (2), which is preferably designed as a pivot lever (12a, 12b) of a variable-stroke valve drive of an internal combustion engine. The roller element is slidably mounted on a roller bolt (3) connected to the machine part and has an outer circumferential surface (6) stepped in its axial direction with adjacent and diameter-different axial sections (7a, 8a, 9a, 7b, 8b, 9b ), between which in each case an annular end face (10a, 11a, 10b, 11b) extends, wherein the machine part is supported over at least one of the axial sections in the radial direction of the roller element and guided over the one or more annular end faces in the axial direction of the roller element. In this case, the roller element should be rigid in itself.
Figure imgaf001
EP07105921A 2006-04-21 2007-04-11 Roller element for a pivotable machine part Withdrawn EP1847691A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006018512A DE102006018512A1 (en) 2006-04-21 2006-04-21 Roller element for a pivotable machine part

Publications (2)

Publication Number Publication Date
EP1847691A2 EP1847691A2 (en) 2007-10-24
EP1847691A3 true EP1847691A3 (en) 2009-04-08

Family

ID=38255011

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07105921A Withdrawn EP1847691A3 (en) 2006-04-21 2007-04-11 Roller element for a pivotable machine part

Country Status (3)

Country Link
EP (1) EP1847691A3 (en)
CN (1) CN101059087A (en)
DE (1) DE102006018512A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011208631A (en) 2010-03-12 2011-10-20 Nsk Ltd Tappet roller bearing
DE102011003900A1 (en) 2011-02-10 2012-08-16 Schaeffler Technologies Gmbh & Co. Kg intermediate lever
DE102011003898B4 (en) 2011-02-10 2021-09-09 Schaeffler Technologies AG & Co. KG Intermediate lever
DE102011075236A1 (en) 2011-05-04 2012-11-08 Schaeffler Technologies AG & Co. KG intermediate lever
DE102011077527A1 (en) * 2011-06-15 2012-12-20 Schaeffler Technologies AG & Co. KG intermediate lever
DE102012222374A1 (en) * 2012-12-06 2014-06-12 Schaeffler Technologies Gmbh & Co. Kg intermediate lever
DE102014100748B4 (en) * 2014-01-23 2017-04-27 Pierburg Gmbh Transmission arrangement for a mechanically controllable valve train and mechanically controllable valve train
DE102015118884A1 (en) * 2015-11-04 2017-05-04 Pierburg Gmbh Mechanically controllable valve train

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL275492A (en) *
EP1022443A1 (en) * 1999-01-19 2000-07-26 Ford Global Technologies, Inc. Variable valve drive for internal combustion engine
EP1234968A2 (en) * 2001-02-15 2002-08-28 Bayerische Motoren Werke Aktiengesellschaft Method for synchronizing the filling of the cylinders of an internal combustion engine
WO2004001198A1 (en) * 2002-06-20 2003-12-31 Rudolf Flierl A stroke adjusting device for valves of a combustion engine
EP1387048A2 (en) * 2002-08-02 2004-02-04 Bayerische Motoren Werke Aktiengesellschaft Rocking lever for valve drive with variable lift
EP1496211A1 (en) * 2003-07-08 2005-01-12 Bayerische Motoren Werke Aktiengesellschaft Rocker arm for a variable lift valve drive

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268901B (en) * 1992-07-23 1995-07-05 Nsk Ltd A rolling/sliding part
DE4322480C2 (en) * 1993-07-06 1996-05-02 Meta Motoren Energietech Device for the variable valve control of internal combustion engines
EP0638706A1 (en) * 1993-08-05 1995-02-15 Bayerische Motoren Werke Aktiengesellschaft Valve actuating mechanism of an internal combustion engine
DE19920512A1 (en) * 1999-05-05 2000-11-09 Opel Adam Ag Device for actuating a valve with a variable stroke on internal combustion engines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL275492A (en) *
EP1022443A1 (en) * 1999-01-19 2000-07-26 Ford Global Technologies, Inc. Variable valve drive for internal combustion engine
EP1234968A2 (en) * 2001-02-15 2002-08-28 Bayerische Motoren Werke Aktiengesellschaft Method for synchronizing the filling of the cylinders of an internal combustion engine
WO2004001198A1 (en) * 2002-06-20 2003-12-31 Rudolf Flierl A stroke adjusting device for valves of a combustion engine
EP1387048A2 (en) * 2002-08-02 2004-02-04 Bayerische Motoren Werke Aktiengesellschaft Rocking lever for valve drive with variable lift
EP1496211A1 (en) * 2003-07-08 2005-01-12 Bayerische Motoren Werke Aktiengesellschaft Rocker arm for a variable lift valve drive

Also Published As

Publication number Publication date
DE102006018512A1 (en) 2007-10-25
CN101059087A (en) 2007-10-24
EP1847691A2 (en) 2007-10-24

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