GB201208815D0 - Intermediate lever - Google Patents

Intermediate lever

Info

Publication number
GB201208815D0
GB201208815D0 GBGB1208815.9A GB201208815A GB201208815D0 GB 201208815 D0 GB201208815 D0 GB 201208815D0 GB 201208815 A GB201208815 A GB 201208815A GB 201208815 D0 GB201208815 D0 GB 201208815D0
Authority
GB
United Kingdom
Prior art keywords
side walls
bridged
axle
yoke
lever
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Withdrawn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
GBGB1208815.9A
Other versions
GB2491939A (en
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 Technologies AG and Co 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 Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of GB201208815D0 publication Critical patent/GB201208815D0/en
Publication of GB2491939A publication Critical patent/GB2491939A/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Withdrawn legal-status Critical Current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
    • F01L1/12—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
    • F01L1/18—Rocking arms or levers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/20—Making machine elements valve parts
    • B21K1/205—Making machine elements valve parts rocker 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
    • F01L1/46—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
    • 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 Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

An intermediate lever 1 for a variable valve drive mechanism of an internal combus­tion engine, comprising two side walls 2 which are bridged in a central section by an axle 3 on which a counter-rotating roller 4 for a lifting cam is arranged enclosed by the side walls 2. A surface 6 for variably transmitting a lift of the lifting cam to a pick-up element of a cam follower is located at one end 5, and the side walls 2 are spanned at a further end 7 by a further axle 8 on which a roller packet 9 for contacting a gate track and an eccentric disc is mounted. The side walls 2 are bridged by a transverse yoke 10 which is in the form of a sepa­rate component that can be installed after the lever 1 has been produced in a stamping-bending process and then removed once the heat treatment, machining processes are completed and the rollers installed, or alternatively the yoke may remain in place.
GB1208815.9A 2011-06-15 2012-05-18 Intermediate Lever with Stiffening Yoke Withdrawn GB2491939A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011077527A DE102011077527A1 (en) 2011-06-15 2011-06-15 intermediate lever

Publications (2)

Publication Number Publication Date
GB201208815D0 true GB201208815D0 (en) 2012-07-04
GB2491939A GB2491939A (en) 2012-12-19

Family

ID=46546324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1208815.9A Withdrawn GB2491939A (en) 2011-06-15 2012-05-18 Intermediate Lever with Stiffening Yoke

Country Status (3)

Country Link
AT (1) AT511682B1 (en)
DE (1) DE102011077527A1 (en)
GB (1) GB2491939A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018132562A1 (en) 2018-12-18 2020-06-18 Schaeffler Technologies AG & Co. KG Intermediate lever of a variable valve train
DE102018132561A1 (en) 2018-12-18 2020-06-18 Schaeffler Technologies AG & Co. KG Intermediate lever of a variable valve train

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207191A (en) * 1992-08-31 1993-05-04 Henley Manufacturing Holding Company, Inc. Boat-type rocker arm with stiffening member
US6293168B1 (en) * 1999-10-06 2001-09-25 The Torrington Company Stamped rocker arms for machines such as internal combustion engines
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
DE10235402A1 (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
DE102006018512A1 (en) * 2006-04-21 2007-10-25 Schaeffler Kg Roller element for a pivotable machine part
DE102006018510A1 (en) * 2006-04-21 2007-10-25 Schaeffler Kg 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
DE102010009399A1 (en) * 2010-02-26 2011-09-01 Schaeffler Technologies Gmbh & Co. Kg Operating lever for stroke-variable gas exchange valve gear of internal-combustion engine, has lever housing, which is formed with two side panels and base, which is connected with side panels

Also Published As

Publication number Publication date
AT511682A3 (en) 2014-01-15
DE102011077527A1 (en) 2012-12-20
AT511682A2 (en) 2013-01-15
GB2491939A (en) 2012-12-19
CN102828793A (en) 2012-12-19
AT511682B1 (en) 2014-04-15

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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)