EP1881165A3 - Switchable valve operating mechanism for a combustion engine - Google Patents

Switchable valve operating mechanism for a combustion engine Download PDF

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Publication number
EP1881165A3
EP1881165A3 EP07111935A EP07111935A EP1881165A3 EP 1881165 A3 EP1881165 A3 EP 1881165A3 EP 07111935 A EP07111935 A EP 07111935A EP 07111935 A EP07111935 A EP 07111935A EP 1881165 A3 EP1881165 A3 EP 1881165A3
Authority
EP
European Patent Office
Prior art keywords
combustion engine
switchable valve
operating mechanism
valve operating
carrier
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Withdrawn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
EP07111935A
Other languages
German (de)
French (fr)
Other versions
EP1881165A2 (en
Inventor
Richard Best
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 EP1881165A2 publication Critical patent/EP1881165A2/en
Publication of EP1881165A3 publication Critical patent/EP1881165A3/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Withdrawn legal-status Critical Current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
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead camshafts
    • 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
    • F01L1/182—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft
    • 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
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • 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
    • 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
    • F01L13/0031—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 tappet or pushrod length
    • 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
    • F01L2001/188—Fulcrums at upper surface
    • 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
    • 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
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20882—Rocker arms

Abstract

Vorgeschlagen ist ein schaltbarer Ventiltrieb (1) für eine Brennkraftmaschine, mit einer Reihe von sich in Längsrichtung eines Zylinderkopfes erstreckenden Kipphebeln (2), die über eine Ausnehmung (7) an ihrer Oberseite (6) an einem Kopf (8) eines Lagerbolzens (9) verlaufen, der axial beweglich in einer Bohrung (10) eines darüber verlaufenden Trägers (11) /Einsatzteils (11a) angeordnet ist, wobei kolbenartige Koppelmittel (12) zur wahlweisen Kopplung des Lagerbolzen (9) mit dem Träger (11) vorgesehen sind.

Figure imgaf001
Proposed is a switchable valve train (1) for an internal combustion engine, having a series of rocker arms (2) extending in the longitudinal direction of a cylinder head and having a recess (7) on its upper side (6) on a head (8) of a bearing pin (9 ), which is arranged axially movably in a bore (10) of a carrier (11) / insert part (11a) extending thereabove, wherein piston-like coupling means (12) are provided for selectively coupling the bearing pin (9) to the carrier (11).
Figure imgaf001
EP07111935A 2006-07-21 2007-07-06 Switchable valve operating mechanism for a combustion engine Withdrawn EP1881165A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80797106P 2006-07-21 2006-07-21

Publications (2)

Publication Number Publication Date
EP1881165A2 EP1881165A2 (en) 2008-01-23
EP1881165A3 true EP1881165A3 (en) 2009-12-16

Family

ID=38596168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07111935A Withdrawn EP1881165A3 (en) 2006-07-21 2007-07-06 Switchable valve operating mechanism for a combustion engine

Country Status (3)

Country Link
US (1) US7568459B2 (en)
EP (1) EP1881165A3 (en)
DE (1) DE102007031806A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007016752A1 (en) * 2007-04-07 2008-10-09 Schaeffler Kg Valve gear of an internal combustion engine
CN101581240B (en) * 2009-06-30 2011-09-21 奇瑞汽车股份有限公司 Continuous variable valve lift device and control method thereof
KR101209740B1 (en) 2010-09-20 2012-12-07 현대자동차주식회사 Engine that is equipped with variable valve device
DE102011005851A1 (en) 2011-03-21 2012-09-27 Schaeffler Technologies Gmbh & Co. Kg Valve drive system for combustion engine, has switching valves in communication with hydraulic medium supply for unlocking or locking support members, and hydraulic medium supply formed within carrier for conducting hydraulic medium
FR2985541A1 (en) * 2012-01-11 2013-07-12 Valeo Sys Controle Moteur Sas Butted disconnecting element for actuating e.g. exhaust valve of cylinder of e.g. thermal engine for vehicle, has circular groove formed in transmission system along longitudinal axis and configured to cooperate with latch
KR101338462B1 (en) 2012-10-16 2013-12-10 현대자동차주식회사 Variable valve lift device
WO2016179578A1 (en) 2015-05-07 2016-11-10 Eaton Corporation Valve train assembly
EP4146918A1 (en) 2020-05-04 2023-03-15 Jacobs Vehicle Systems, Inc. Valve actuation system comprising lost motion and high lift transfer components in a main motion load path

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3239941A1 (en) * 1982-10-28 1984-05-03 Volkswagenwerk Ag, 3180 Wolfsburg Device for switching off the valve mechanism of an internal combustion engine
JPS59201913A (en) * 1983-04-28 1984-11-15 Mazda Motor Corp Device making engine valve inoperative
DE3743854A1 (en) * 1987-12-23 1989-07-06 Michael Stirm Four-valve control with upper supporting elements
JPH0385309A (en) * 1989-08-29 1991-04-10 Fuji Heavy Ind Ltd Device for stopping valve operation
WO2000020730A1 (en) * 1998-10-05 2000-04-13 Eaton Automotive S.P.A. Valve train assembly
EP1149989A1 (en) * 2000-03-23 2001-10-31 Eaton Corporation Hydraulically actuated latching pin valve deactivation
US20030075129A1 (en) * 1999-07-01 2003-04-24 Spath Mark J. Valve lifter assembly for selectively deactivating a cylinder
EP1462623A1 (en) * 2003-03-19 2004-09-29 Eaton Corporation Valve control system permitting dual valve lift and valve deactivation
WO2005028816A1 (en) * 2003-09-05 2005-03-31 Ina-Schaeffler Kg Valve drive
EP1544422A1 (en) * 2003-11-05 2005-06-22 EATON AUTOMOTIVE S.p.A. Valve deactivation system and latchable hydraulic lash adjuster therefore

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3239941A1 (en) * 1982-10-28 1984-05-03 Volkswagenwerk Ag, 3180 Wolfsburg Device for switching off the valve mechanism of an internal combustion engine
JPS59201913A (en) * 1983-04-28 1984-11-15 Mazda Motor Corp Device making engine valve inoperative
DE3743854A1 (en) * 1987-12-23 1989-07-06 Michael Stirm Four-valve control with upper supporting elements
JPH0385309A (en) * 1989-08-29 1991-04-10 Fuji Heavy Ind Ltd Device for stopping valve operation
WO2000020730A1 (en) * 1998-10-05 2000-04-13 Eaton Automotive S.P.A. Valve train assembly
US20030075129A1 (en) * 1999-07-01 2003-04-24 Spath Mark J. Valve lifter assembly for selectively deactivating a cylinder
EP1149989A1 (en) * 2000-03-23 2001-10-31 Eaton Corporation Hydraulically actuated latching pin valve deactivation
EP1462623A1 (en) * 2003-03-19 2004-09-29 Eaton Corporation Valve control system permitting dual valve lift and valve deactivation
WO2005028816A1 (en) * 2003-09-05 2005-03-31 Ina-Schaeffler Kg Valve drive
EP1544422A1 (en) * 2003-11-05 2005-06-22 EATON AUTOMOTIVE S.p.A. Valve deactivation system and latchable hydraulic lash adjuster therefore

Also Published As

Publication number Publication date
US7568459B2 (en) 2009-08-04
US20080017153A1 (en) 2008-01-24
DE102007031806A1 (en) 2008-01-24
EP1881165A2 (en) 2008-01-23

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