EP0504128A1 - Culasse de moteur à combustion interne - Google Patents

Culasse de moteur à combustion interne Download PDF

Info

Publication number
EP0504128A1
EP0504128A1 EP92890045A EP92890045A EP0504128A1 EP 0504128 A1 EP0504128 A1 EP 0504128A1 EP 92890045 A EP92890045 A EP 92890045A EP 92890045 A EP92890045 A EP 92890045A EP 0504128 A1 EP0504128 A1 EP 0504128A1
Authority
EP
European Patent Office
Prior art keywords
bridge
cylinder head
valve
cylinder
valves
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
EP92890045A
Other languages
German (de)
English (en)
Other versions
EP0504128B1 (fr
Inventor
Christof D. Dipl.-Ing. Fischer
Wolfgang Petutschnig
Karl Dipl.-Ing. Wojik
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.)
AVL List GmbH
Original Assignee
AVL List GmbH
AVL Gesellschaft fuer Verbrennungskraftmaschinen und Messtechnik mbH
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 AVL List GmbH, AVL Gesellschaft fuer Verbrennungskraftmaschinen und Messtechnik mbH filed Critical AVL List GmbH
Publication of EP0504128A1 publication Critical patent/EP0504128A1/fr
Application granted granted Critical
Publication of EP0504128B1 publication Critical patent/EP0504128B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01L1/26—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
    • 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
    • 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
    • F01L1/2411—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the valve stem and rocker arm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/20—SOHC [Single overhead camshaft]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis

Definitions

  • the invention relates to a cylinder head of an internal combustion engine with more than two hanging valves per cylinder, which are actuated via rocker arms, each rocker arm being mounted individually on the cylinder head via a bridge.
  • a cylinder head for an internal combustion engine in which the abutments of the rocker arms are used in a camshaft cover.
  • the two exhaust valves are actuated by separate rocker arms in this known cylinder head.
  • a common fork rocker arm is provided for the two inlet valves.
  • the object of the present invention is to create a cylinder head in which the largest possible number of identical parts is used and which is to be as compact as possible. In particular, a low overall height should be achieved.
  • rocker arm shaft allows extensive design freedom in the construction of the cylinder head. Due to the low position of the camshaft in the cylinder head, a particularly low overall height of the engine can be achieved. In particular, this can prevent the camshaft drive wheel, which normally projects high above the cylinder head, from protruding beyond the contour of the valve cover.
  • valve bridge guide By attaching the valve bridge to the bridge, there is no need for a valve bridge guide arranged between the valves, which is always very problematic in terms of design.
  • An extensive freedom from maintenance is achieved in that an element for automatic valve clearance compensation is provided on the bridge.
  • the element for valve clearance compensation is most advantageously integrated into the mounting of the rocker arm.
  • valve bridge In a further preferred embodiment variant of the invention it is provided that elements for automatic valve play compensation are provided in the valve bridge. This ensures that the valve clearance is correct even if individual valves are set differently.
  • a camshaft 1 is provided on the side of the cylinder head, on which intake cams 2 and exhaust cams 3 are attached. Furthermore two hanging inlet valves 4a, 4b and outlet valves 5a, 5b are provided in the cylinder head.
  • the inlet valves 4a and 4b are connected via a valve bridge 6. Accordingly, a valve bridge 7 is provided for the exhaust valves 5a and 5b.
  • a screw 8 is provided on the valve bridge 6 for valve adjustment.
  • a screw 9 is arranged on the valve bridge 7.
  • the inlet valves 4a and 4b are actuated via a rocker arm 10.
  • a rocker arm 11 is provided for the outlet valves 5a and 5b.
  • the rocker arms 10 and 11 are supported by a bridge 12 in which hydraulic elements 13 and 14 for valve clearance compensation are arranged at different distances from the cylinder center plane 20.
  • the valve bridge 6 is suspended from the bridge 12 via a pin 15. In the same way, a pin 15a serves to suspend the valve bridge 7.
  • the rocker arm 10 is mounted on the bridge 12 via a connecting piece 16.
  • elements 17a and 17b are provided for valve clearance compensation for the valves 4a and 4b.
  • the oil supply to the elements 17a and 17b for valve clearance compensation takes place via oil channels 18 in the bridge 12, oil channels 19 in the pin 14 and oil channels 20 in the valve bridge 6a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
EP92890045A 1991-03-12 1992-02-25 Culasse de moteur à combustion interne Expired - Lifetime EP0504128B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT545/91 1991-03-12
AT54591 1991-03-12

Publications (2)

Publication Number Publication Date
EP0504128A1 true EP0504128A1 (fr) 1992-09-16
EP0504128B1 EP0504128B1 (fr) 1994-02-02

Family

ID=3493442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92890045A Expired - Lifetime EP0504128B1 (fr) 1991-03-12 1992-02-25 Culasse de moteur à combustion interne

Country Status (3)

Country Link
US (1) US5150672A (fr)
EP (1) EP0504128B1 (fr)
DE (1) DE59200059D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0586884A1 (fr) * 1992-08-26 1994-03-16 IVECO FIAT S.p.A. Moteur à combustion interne muni d'un dispositif amélioré pour la commande des soupapes
DE4338845A1 (de) * 1993-11-13 1995-05-24 Schaeffler Waelzlager Kg Vorrichtung zum gleichzeitigen Betätigen zweier Gaswechselventile
US5535710A (en) * 1994-03-31 1996-07-16 Fev Motorentechnik Gmbh & Co. Kommanditgesellschaft Arrangement of valves and valve drives in an internal combuston engine having an overhead camshaft
EP0735244A1 (fr) * 1995-03-27 1996-10-02 Mazda Motor Corporation Moteur diesel à injection directe
DE19818195A1 (de) * 1998-04-23 1999-10-28 Opel Adam Ag Vorrichtung zum gleichzeitigen Betätigen zweier Gaswechselventile
WO2014001560A1 (fr) * 2012-06-29 2014-01-03 Eaton Srl Coupleur de soupapes

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4039256C2 (de) * 1990-12-08 1996-05-09 Schaeffler Waelzlager Kg Einrichtung zur gleichzeitigen Betätigung zweier Gaswechselventile einer Brennkraftmaschine
AU648647B2 (en) * 1991-09-03 1994-04-28 Caterpillar Inc. Valve actuation device
US5303680A (en) * 1993-06-10 1994-04-19 Eaton Corporation Lash adjusting mechanism for multi valve engine
WO1995000750A1 (fr) * 1993-06-18 1995-01-05 Ina Wälzlager Schaeffler Kg Levier entraine pour l'actionnement de soupapes a gaz
DE4410122C2 (de) * 1994-03-24 2003-05-08 Ina Schaeffler Kg Verbindung einer Führungsschiene einer Ventilbetätigungseinrichtung mit einem Nockenwellenlager
US5410995A (en) * 1994-04-15 1995-05-02 Cummins Engine Company, Inc. Valve crosshead assembly with wear-reducing contact pad
JPH0814013A (ja) * 1994-06-28 1996-01-16 Hino Motors Ltd マルチバルブエンジンのバルブメカニズム
US5645023A (en) * 1996-04-08 1997-07-08 Chrysler Corporation Valve train for an internal combustion engine
US5669344A (en) * 1996-08-09 1997-09-23 Chrysler Corporation Sohc system with radial valves
US5682849A (en) * 1996-10-04 1997-11-04 Chrysler Corporation Rocker arm-tappet connector for radial valves and vertically operating crosshead
US7028654B2 (en) 2002-10-18 2006-04-18 The Maclean-Fogg Company Metering socket
US6871622B2 (en) 2002-10-18 2005-03-29 Maclean-Fogg Company Leakdown plunger
US7273026B2 (en) 2002-10-18 2007-09-25 Maclean-Fogg Company Roller follower body
US7191745B2 (en) 2002-10-18 2007-03-20 Maclean-Fogg Company Valve operating assembly
US7128034B2 (en) 2002-10-18 2006-10-31 Maclean-Fogg Company Valve lifter body
DE102008061412A1 (de) * 2008-07-11 2010-01-14 Man Nutzfahrzeuge Ag Hydraulischer Ventil- und EVB-Spielausgleich
US7984705B2 (en) 2009-01-05 2011-07-26 Zhou Yang Engine braking apparatus with two-level pressure control valves
EP3704358B1 (fr) 2017-11-22 2022-09-21 Cummins Inc. Élément de retenue mécanique pour culbuterie

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140698A (en) * 1962-04-13 1964-07-14 Voorhies Carl Hydraulic tappet unit inverted
US4739734A (en) * 1985-07-19 1988-04-26 Honda Giken Kogyo Kabushiki Kaisha Valve train for internal combustion engine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1906882A1 (de) * 1969-02-12 1970-09-03 Kloeckner Humboldt Deutz Ag Vorrichtung zur Betaetigung mehrerer Ventile bei Hubkolbenbrennkraftmaschinen
US4343268A (en) * 1979-06-07 1982-08-10 Cummins Engine Company, Inc. Energy conserving exhaust passage for an internal combustion engine
US4327677A (en) * 1979-06-20 1982-05-04 General Motors Corporation Semi-floating valve bridge
DE3313225A1 (de) * 1983-04-13 1984-10-18 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen Ventilsteuerung fuer eine hubkolben-brennkraftmaschine
DE3743854A1 (de) * 1987-12-23 1989-07-06 Michael Stirm Vierventilsteuerung mit oberen abstuetzelementen
US4924821A (en) * 1988-12-22 1990-05-15 General Motors Corporation Hydraulic lash adjuster and bridge assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140698A (en) * 1962-04-13 1964-07-14 Voorhies Carl Hydraulic tappet unit inverted
US4739734A (en) * 1985-07-19 1988-04-26 Honda Giken Kogyo Kabushiki Kaisha Valve train for internal combustion engine

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0586884A1 (fr) * 1992-08-26 1994-03-16 IVECO FIAT S.p.A. Moteur à combustion interne muni d'un dispositif amélioré pour la commande des soupapes
DE4338845A1 (de) * 1993-11-13 1995-05-24 Schaeffler Waelzlager Kg Vorrichtung zum gleichzeitigen Betätigen zweier Gaswechselventile
DE4338845C2 (de) * 1993-11-13 1998-03-26 Schaeffler Waelzlager Kg Vorrichtung zum gleichzeitigen Betätigen zweier Gaswechselventile
US5535710A (en) * 1994-03-31 1996-07-16 Fev Motorentechnik Gmbh & Co. Kommanditgesellschaft Arrangement of valves and valve drives in an internal combuston engine having an overhead camshaft
EP0735244A1 (fr) * 1995-03-27 1996-10-02 Mazda Motor Corporation Moteur diesel à injection directe
DE19818195C2 (de) * 1998-04-23 2003-10-30 Opel Adam Ag Vorrichtung zum gleichzeitigen Betätigen zweier Gaswechselventile
DE19818195A1 (de) * 1998-04-23 1999-10-28 Opel Adam Ag Vorrichtung zum gleichzeitigen Betätigen zweier Gaswechselventile
WO2014001560A1 (fr) * 2012-06-29 2014-01-03 Eaton Srl Coupleur de soupapes
US9512745B2 (en) 2012-06-29 2016-12-06 Eaton Srl Valve bridge
CN107060933A (zh) * 2012-06-29 2017-08-18 伊顿(意大利)有限公司 配气机构总成
US10190446B2 (en) 2012-06-29 2019-01-29 Eaton Intelligent Power Limited Valve train assembly
US10260382B2 (en) 2012-06-29 2019-04-16 Eaton Intelligent Power Limited Valve bridge assembly
CN107060933B (zh) * 2012-06-29 2019-09-10 伊顿(意大利)有限公司 配气机构总成

Also Published As

Publication number Publication date
US5150672A (en) 1992-09-29
EP0504128B1 (fr) 1994-02-02
DE59200059D1 (de) 1994-03-17

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