BRPI0520667A2 - perfil de coroa (crowning) - Google Patents

perfil de coroa (crowning)

Info

Publication number
BRPI0520667A2
BRPI0520667A2 BRPI0520667-7A BRPI0520667A BRPI0520667A2 BR PI0520667 A2 BRPI0520667 A2 BR PI0520667A2 BR PI0520667 A BRPI0520667 A BR PI0520667A BR PI0520667 A2 BRPI0520667 A2 BR PI0520667A2
Authority
BR
Brazil
Prior art keywords
profile
crowning profile
crowning
crown
contact surface
Prior art date
Application number
BRPI0520667-7A
Other languages
English (en)
Inventor
Magnus Gustafsson
Original Assignee
Volvo Lastvagnar Ab
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 Volvo Lastvagnar Ab filed Critical Volvo Lastvagnar Ab
Publication of BRPI0520667A2 publication Critical patent/BRPI0520667A2/pt

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
    • F01L1/20—Adjusting or compensating clearance
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • 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
    • F01L1/16—Silencing impact; Reducing wear
    • 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
    • F01L2001/186—Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison
    • 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
    • F01L2303/00—Manufacturing of components used in valve arrangements
    • 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
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/02—Formulas
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Gears, Cams (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

PERFIL DE COROA (CROWNING). A presente invenção se refere a um elemento de contato (16) que é disposto para seguir, isto é, para deslizar ou rolar, contra uma parte de cooperação (11) e que compreende uma superfície de contato possuindo um perfil de coroa (crowning) (22) sobre pelo menos uma parte da mesma. Em concordância com a presente invenção, o perfil de coroa (22) é definido pela função Y (X) = AX^ B^, onde y é a quantidade de coroa, X é a distância a partir do centro da superfície de contato do elemento de contato (16), A e B são números reais e B é maior do que 2
BRPI0520667-7A 2005-11-03 2005-11-03 perfil de coroa (crowning) BRPI0520667A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2005/001653 WO2007053070A1 (en) 2005-11-03 2005-11-03 Crowning profile

Publications (1)

Publication Number Publication Date
BRPI0520667A2 true BRPI0520667A2 (pt) 2009-05-19

Family

ID=38006117

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0520667-7A BRPI0520667A2 (pt) 2005-11-03 2005-11-03 perfil de coroa (crowning)

Country Status (6)

Country Link
US (1) US20100138020A1 (pt)
EP (1) EP1945915A4 (pt)
JP (1) JP2009515109A (pt)
CN (1) CN101305165B (pt)
BR (1) BRPI0520667A2 (pt)
WO (1) WO2007053070A1 (pt)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9016252B2 (en) 2008-07-22 2015-04-28 Eaton Corporation System to diagnose variable valve actuation malfunctions by monitoring fluid pressure in a hydraulic lash adjuster gallery
US9581058B2 (en) 2010-08-13 2017-02-28 Eaton Corporation Development of a switching roller finger follower for cylinder deactivation in internal combustion engines
US9038586B2 (en) 2010-03-19 2015-05-26 Eaton Corporation Rocker assembly having improved durability
US8985074B2 (en) 2010-03-19 2015-03-24 Eaton Corporation Sensing and control of a variable valve actuation system
US9938865B2 (en) 2008-07-22 2018-04-10 Eaton Corporation Development of a switching roller finger follower for cylinder deactivation in internal combustion engines
WO2015134466A1 (en) 2014-03-03 2015-09-11 Eaton Corporation Valve actuating device and method of making same
US9291075B2 (en) 2008-07-22 2016-03-22 Eaton Corporation System to diagnose variable valve actuation malfunctions by monitoring fluid pressure in a control gallery
US20190309663A9 (en) 2008-07-22 2019-10-10 Eaton Corporation Development of a switching roller finger follower for cylinder deactivation in internal combustion engines
US10415439B2 (en) 2008-07-22 2019-09-17 Eaton Intelligent Power Limited Development of a switching roller finger follower for cylinder deactivation in internal combustion engines
US9284859B2 (en) 2010-03-19 2016-03-15 Eaton Corporation Systems, methods, and devices for valve stem position sensing
US9228454B2 (en) 2010-03-19 2016-01-05 Eaton Coporation Systems, methods and devices for rocker arm position sensing
US9267396B2 (en) 2010-03-19 2016-02-23 Eaton Corporation Rocker arm assembly and components therefor
US11181013B2 (en) 2009-07-22 2021-11-23 Eaton Intelligent Power Limited Cylinder head arrangement for variable valve actuation rocker arm assemblies
US10087790B2 (en) 2009-07-22 2018-10-02 Eaton Corporation Cylinder head arrangement for variable valve actuation rocker arm assemblies
US9194261B2 (en) 2011-03-18 2015-11-24 Eaton Corporation Custom VVA rocker arms for left hand and right hand orientations
US9885258B2 (en) 2010-03-19 2018-02-06 Eaton Corporation Latch interface for a valve actuating device
US9874122B2 (en) 2010-03-19 2018-01-23 Eaton Corporation Rocker assembly having improved durability
DE102011106395A1 (de) * 2011-07-02 2013-01-03 Man Truck & Bus Ag Ventilsteuerung für mindestens ein Ventil einer Brennkraftmaschine
CN104411925B (zh) * 2012-04-20 2018-08-31 伊顿公司 可变气门升程系统、方法和装置
USD750670S1 (en) 2013-02-22 2016-03-01 Eaton Corporation Rocker arm
WO2017028918A1 (en) * 2015-08-19 2017-02-23 Volvo Truck Corporation A variable valve actuation mechanism, an internal combustion engine, and a vehicle
CN213807956U (zh) * 2020-09-02 2021-07-27 罗伯特·博世有限公司 柱塞泵挺柱体组件及其滚轮

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4284778B2 (ja) * 1999-09-16 2009-06-24 日本精工株式会社 タペットローラ
JP2001124089A (ja) * 1999-10-28 2001-05-08 Ntn Corp 円筒ころ軸受
SE521189C2 (sv) * 2002-02-04 2003-10-07 Volvo Lastvagnar Ab Anordning för att tillföra EGR-gas
SE524142C2 (sv) * 2002-11-08 2004-07-06 Volvo Lastvagnar Ab Anordning vid förbränningsmotor
JP2004353744A (ja) * 2003-05-28 2004-12-16 Nsk Ltd ころ軸受
US7107953B2 (en) * 2003-09-18 2006-09-19 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Valve gear of an internal combustion engine
JP4381188B2 (ja) * 2004-03-19 2009-12-09 三菱ふそうトラック・バス株式会社 内燃機関の可変動弁装置

Also Published As

Publication number Publication date
EP1945915A4 (en) 2011-01-26
EP1945915A1 (en) 2008-07-23
WO2007053070A1 (en) 2007-05-10
CN101305165A (zh) 2008-11-12
JP2009515109A (ja) 2009-04-09
US20100138020A1 (en) 2010-06-03
CN101305165B (zh) 2010-11-10

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE 7A. ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2204 DE 02/04/2013.