EP1050669A3 - Valve driving arrangement with variable lift for an internal combustion engine - Google Patents

Valve driving arrangement with variable lift for an internal combustion engine Download PDF

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Publication number
EP1050669A3
EP1050669A3 EP00108823A EP00108823A EP1050669A3 EP 1050669 A3 EP1050669 A3 EP 1050669A3 EP 00108823 A EP00108823 A EP 00108823A EP 00108823 A EP00108823 A EP 00108823A EP 1050669 A3 EP1050669 A3 EP 1050669A3
Authority
EP
European Patent Office
Prior art keywords
camshafts
internal combustion
camshaft
valve
combustion engine
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.)
Granted
Application number
EP00108823A
Other languages
German (de)
French (fr)
Other versions
EP1050669A2 (en
EP1050669B1 (en
Inventor
Paul Dipl.-Ing. Breidenbach
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.)
Adam Opel GmbH
Original Assignee
Adam Opel GmbH
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 Adam Opel GmbH filed Critical Adam Opel GmbH
Publication of EP1050669A2 publication Critical patent/EP1050669A2/en
Publication of EP1050669A3 publication Critical patent/EP1050669A3/en
Application granted granted Critical
Publication of EP1050669B1 publication Critical patent/EP1050669B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • 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
    • F01L13/0036—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 the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F01L13/0047—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 the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction the movement of the valves resulting from the sum of the simultaneous actions of at least two cams, the cams being independently variable in phase in respect of each other
    • 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

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

Die Erfindung betrifft eine Vorrichtung zur Betätigung eines Ventils mit variablem Hub an Brennkraftmaschinen. Die Vorrichtung umfaßt zwei gegeneinander verstellbare Nockenwellen (1, 2), ein von einer Schließfeder (12) beaufschlagtes Ventil, einen Tassenstößel (8) sowie einen von beiden Nockenwellen (1, 2) beaufschlagten Betätigungshebel (14), der die Nockenwege addiert.The invention relates to a device for actuation of a valve with a variable stroke on internal combustion engines. The device comprises two mutually adjustable Camshafts (1, 2), one acted upon by a closing spring (12) Valve, a tappet (8) and one actuating lever acted on by both camshafts (1, 2) (14), which adds the cam paths.

Um mit möglichst geringem Bauraum auszukommen und die Vorrichtung auch an üblichen Zylinderköpfen installieren zu können, wird vorgeschlagen, den Betätigungshebel (14) auf dem Tassenstößel (8) schwenkbar zu lagern und andererseits an einem Verbindungsteil (18) abzustützen, das sich zwischen den beiden Nockenwellen (1, 2) erstreckt und mit einer Rolle (22) auf einem Rastkreis (5) der ersten Nockenwelle sowie einem Stellnocken (13) der zweiten Nockenwelle anliegt. Ein Betätigungsnocken (4) der ersten Nockenwelle (1) wirkt auf den Betätigungshebel (14) ein.In order to get by with as little space as possible and the Install the device also on usual cylinder heads To be able to, it is proposed that the actuating lever (14) to be pivoted on the tappet (8) and on the other hand to be supported on a connecting part (18) extends between the two camshafts (1, 2) and with a roller (22) on a detent circle (5) of the first Camshaft and a control cam (13) of the second Camshaft is present. An actuating cam (4) of the first Camshaft (1) acts on the operating lever (14).

Durch Verstellen der Nockenwellen (1, 2) gegeneinander kann so ein Ventilhub zwischen Null und einem Maximum eingestellt werden. Die Vorrichtung erfordert relativ geringen Raum und ist auf übliche Zylinderköpfe adaptierbar.

Figure 00000001
By adjusting the camshafts (1, 2) against each other, a valve lift between zero and a maximum can be set. The device requires relatively little space and can be adapted to conventional cylinder heads.
Figure 00000001
EP00108823A 1999-05-05 2000-04-26 Valve driving arrangement with variable lift for an internal combustion engine Expired - Lifetime EP1050669B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19920512A DE19920512A1 (en) 1999-05-05 1999-05-05 Device for actuating a valve with a variable stroke on internal combustion engines
DE19920512 1999-05-05

Publications (3)

Publication Number Publication Date
EP1050669A2 EP1050669A2 (en) 2000-11-08
EP1050669A3 true EP1050669A3 (en) 2001-05-16
EP1050669B1 EP1050669B1 (en) 2005-01-26

Family

ID=7906942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00108823A Expired - Lifetime EP1050669B1 (en) 1999-05-05 2000-04-26 Valve driving arrangement with variable lift for an internal combustion engine

Country Status (2)

Country Link
EP (1) EP1050669B1 (en)
DE (2) DE19920512A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2378729A (en) * 2001-08-18 2003-02-19 Mechadyne Plc Adjustable engine valve control system
DE10155007A1 (en) * 2001-11-06 2003-05-15 Herbert Naumann Valve stroke
DE10235403A1 (en) * 2002-08-02 2004-02-12 Bayerische Motoren Werke Ag Swivel lever for a variable stroke valve train
DE10303601A1 (en) * 2003-01-30 2004-08-12 Mahle Ventiltrieb Gmbh valve control
DE10304304A1 (en) * 2003-02-04 2004-08-19 Bayerische Motoren Werke Ag Internal combustion engine with stroke adjustment of the gas exchange valves
DE102006018512A1 (en) * 2006-04-21 2007-10-25 Schaeffler Kg Roller element for a pivotable machine part
WO2008008583A1 (en) * 2006-07-10 2008-01-17 Borgwarner Inc Valve event duration control via secondary closing camshaft with phaser
CN102061952A (en) * 2010-10-08 2011-05-18 奇瑞汽车股份有限公司 Camshaft bearing seat
CN102966391B (en) * 2012-11-25 2014-10-15 天津大学 Swinging arm mechanism controlled by using double cams
DE102014003466A1 (en) * 2014-03-11 2015-09-17 Meta Motoren- Und Energie-Technik Gmbh Device and method for the variable control of a valve of an internal combustion engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994016202A1 (en) * 1992-12-30 1994-07-21 Meta Motoren- Und Energie-Technik Gmbh Device for the variable control of the valves of internal combustion engines, especially for the chokeless load control of four-stroke engines
US5373818A (en) * 1993-08-05 1994-12-20 Bayerische Motoren Werke Ag Valve gear assembly for an internal-combustion engine
JPH07324610A (en) * 1994-05-31 1995-12-12 Isuzu Motors Ltd Variable valve driving apparatus
DE19600536A1 (en) * 1996-01-09 1997-07-10 Meta Motoren Energietech Device for variable control of inlet valve of combustion engine
DE19702284A1 (en) * 1997-01-23 1998-07-30 Josef Hoffmann Motor vehicle double cam-shaft variable valve control installable as variable cam-shaft regulation
EP0909881A2 (en) * 1997-10-16 1999-04-21 DaimlerChrysler AG Variable valve operating device for an internal combustion engine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3519319A1 (en) 1985-05-30 1986-12-04 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart VARIABLE VALVE CONTROL FOR A PISTON PISTON COMBUSTION ENGINE

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994016202A1 (en) * 1992-12-30 1994-07-21 Meta Motoren- Und Energie-Technik Gmbh Device for the variable control of the valves of internal combustion engines, especially for the chokeless load control of four-stroke engines
US5373818A (en) * 1993-08-05 1994-12-20 Bayerische Motoren Werke Ag Valve gear assembly for an internal-combustion engine
JPH07324610A (en) * 1994-05-31 1995-12-12 Isuzu Motors Ltd Variable valve driving apparatus
DE19600536A1 (en) * 1996-01-09 1997-07-10 Meta Motoren Energietech Device for variable control of inlet valve of combustion engine
DE19702284A1 (en) * 1997-01-23 1998-07-30 Josef Hoffmann Motor vehicle double cam-shaft variable valve control installable as variable cam-shaft regulation
EP0909881A2 (en) * 1997-10-16 1999-04-21 DaimlerChrysler AG Variable valve operating device for an internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 04 30 April 1996 (1996-04-30) *

Also Published As

Publication number Publication date
DE50009324D1 (en) 2005-03-03
DE19920512A1 (en) 2000-11-09
EP1050669A2 (en) 2000-11-08
EP1050669B1 (en) 2005-01-26

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