DE502007001829D1 - Rocker arm for a variable-stroke valve train - Google Patents

Rocker arm for a variable-stroke valve train

Info

Publication number
DE502007001829D1
DE502007001829D1 DE502007001829T DE502007001829T DE502007001829D1 DE 502007001829 D1 DE502007001829 D1 DE 502007001829D1 DE 502007001829 T DE502007001829 T DE 502007001829T DE 502007001829 T DE502007001829 T DE 502007001829T DE 502007001829 D1 DE502007001829 D1 DE 502007001829D1
Authority
DE
Germany
Prior art keywords
stroke
variable
transmission
rocker arm
valve train
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.)
Active
Application number
DE502007001829T
Other languages
German (de)
Inventor
Wolfgang Christgen
Thomas Kern
Juergen 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.)
Schaeffler Technologies AG 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 DE502007001829D1 publication Critical patent/DE502007001829D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01L13/0063—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
    • 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
    • F01L13/0005—Deactivating valves
    • 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

Landscapes

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

Abstract

The arm has supporting, tappet starting and stroke transmission surfaces on end section, center section and another end section, respectively. An outer shell surface of a roller supported in a valve lever is subjected with contact force changeable in a swinging direction. The transmission surface (16) has a width, which is changeable along the direction, during contact pressing between the transmission and shell surfaces. The maximum width of a stroke area (19) is formed larger or equal to the maximum width of an idle-stroke area (18) and larger than the minimum width of the idle-stroke area.
DE502007001829T 2006-04-21 2007-04-11 Rocker arm for a variable-stroke valve train Active DE502007001829D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006018510A DE102006018510A1 (en) 2006-04-21 2006-04-21 Swinging arm for stroke-variable valve gear of internal combustion engine, has stroke area, where maximum width of stroke area is formed larger or equal to maximum width of idle-stroke area and larger than minimum width of idle-stroke area

Publications (1)

Publication Number Publication Date
DE502007001829D1 true DE502007001829D1 (en) 2009-12-10

Family

ID=38536725

Family Applications (2)

Application Number Title Priority Date Filing Date
DE102006018510A Withdrawn DE102006018510A1 (en) 2006-04-21 2006-04-21 Swinging arm for stroke-variable valve gear of internal combustion engine, has stroke area, where maximum width of stroke area is formed larger or equal to maximum width of idle-stroke area and larger than minimum width of idle-stroke area
DE502007001829T Active DE502007001829D1 (en) 2006-04-21 2007-04-11 Rocker arm for a variable-stroke valve train

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE102006018510A Withdrawn DE102006018510A1 (en) 2006-04-21 2006-04-21 Swinging arm for stroke-variable valve gear of internal combustion engine, has stroke area, where maximum width of stroke area is formed larger or equal to maximum width of idle-stroke area and larger than minimum width of idle-stroke area

Country Status (3)

Country Link
EP (1) EP1862649B1 (en)
AT (1) ATE447094T1 (en)
DE (2) DE102006018510A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007033821B4 (en) * 2007-07-18 2013-10-31 Hydraulik-Ring Gmbh Working curve of a variable valve train
DE102011077527A1 (en) * 2011-06-15 2012-12-20 Schaeffler Technologies AG & Co. KG intermediate lever
DE102014206314A1 (en) * 2014-04-02 2015-10-08 Schaeffler Technologies AG & Co. KG Method for producing an intermediate lever

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4638772A (en) * 1984-03-30 1987-01-27 Investment Rarites, Incorporated Valve actuating apparatus for minimizing the need for lash adjustment
DE19608410C1 (en) * 1996-03-05 1997-06-12 Audi Ag Valve operating lever for internal combustion engine
DE10017441A1 (en) * 2000-04-07 2001-10-11 Bayerische Motoren Werke Ag Device for stroke adjustment of a gas exchange valve in the cylinder head of an internal combustion engine
DE10140635B4 (en) * 2001-08-13 2010-12-02 Entec Consulting Gmbh Device for variable valve lift adjustment of gas exchange valves of an internal combustion engine
DE10235400A1 (en) * 2002-08-02 2004-02-19 Bayerische Motoren Werke Ag Cylinder head for an internal combustion engine with a variable stroke valve train
DE10235402A1 (en) * 2002-08-02 2004-02-12 Bayerische Motoren Werke Ag Swivel lever for a variable stroke valve train
DE10235403A1 (en) * 2002-08-02 2004-02-12 Bayerische Motoren Werke Ag Swivel lever for a variable stroke valve train
DE10260557A1 (en) * 2002-12-21 2004-07-01 Ina-Schaeffler Kg Intermediate lever for a variable valve train of an internal combustion engine
EP1496211A1 (en) * 2003-07-08 2005-01-12 Bayerische Motoren Werke Aktiengesellschaft Rocker arm for a variable lift valve drive
JP2005069014A (en) * 2003-08-25 2005-03-17 Yamaha Motor Co Ltd Valve system of internal combustion engine
ATE507371T1 (en) * 2004-08-25 2011-05-15 Yamaha Motor Co Ltd OSCILLATING CAM AND DYNAMIC VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINE
JP4278590B2 (en) * 2004-08-31 2009-06-17 株式会社日立製作所 Variable valve operating device for internal combustion engine

Also Published As

Publication number Publication date
EP1862649A1 (en) 2007-12-05
DE102006018510A1 (en) 2007-10-25
EP1862649B1 (en) 2009-10-28
ATE447094T1 (en) 2009-11-15

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 H, DE

8364 No opposition during term of opposition
R081 Change of applicant/patentee

Ref document number: 1862649

Country of ref document: EP

Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE

Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE

Effective date: 20120828