IT1195192B - Comando valvole per motori ad alberi a camme in testa - Google Patents

Comando valvole per motori ad alberi a camme in testa

Info

Publication number
IT1195192B
IT1195192B IT67759/86A IT6775986A IT1195192B IT 1195192 B IT1195192 B IT 1195192B IT 67759/86 A IT67759/86 A IT 67759/86A IT 6775986 A IT6775986 A IT 6775986A IT 1195192 B IT1195192 B IT 1195192B
Authority
IT
Italy
Prior art keywords
head
valve control
camshaft engines
camshaft
engines
Prior art date
Application number
IT67759/86A
Other languages
English (en)
Other versions
IT8667759A0 (it
Inventor
Andrea Titolo
Original Assignee
Fiat Auto Spa
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 Fiat Auto Spa filed Critical Fiat Auto Spa
Priority to IT67759/86A priority Critical patent/IT1195192B/it
Publication of IT8667759A0 publication Critical patent/IT8667759A0/it
Priority to ES87830345T priority patent/ES2019664B3/es
Priority to DE8787830345T priority patent/DE3767266D1/de
Priority to EP87830345A priority patent/EP0263794B1/en
Priority to US07/104,907 priority patent/US4773359A/en
Application granted granted Critical
Publication of IT1195192B publication Critical patent/IT1195192B/it

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
    • F01L1/26—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
    • F01L13/0015—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
    • F01L13/0042—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 with cams being profiled in axial and radial direction
    • 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
    • F01L2307/00—Preventing the rotation of tappets
    • 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
    • F02B2275/18—DOHC [Double 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
    • 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
    • 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
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
IT67759/86A 1986-10-07 1986-10-07 Comando valvole per motori ad alberi a camme in testa IT1195192B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT67759/86A IT1195192B (it) 1986-10-07 1986-10-07 Comando valvole per motori ad alberi a camme in testa
ES87830345T ES2019664B3 (es) 1986-10-07 1987-09-29 Control de valvulas por arbol de levas colocado en la culata del motor.
DE8787830345T DE3767266D1 (de) 1986-10-07 1987-09-29 Ventilsteuerung fuer brennkraftmaschinen mit obenliegender nockenwelle.
EP87830345A EP0263794B1 (en) 1986-10-07 1987-09-29 Valve control for overhead camshaft engines
US07/104,907 US4773359A (en) 1986-10-07 1987-10-06 Valve control for overhead camshaft engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67759/86A IT1195192B (it) 1986-10-07 1986-10-07 Comando valvole per motori ad alberi a camme in testa

Publications (2)

Publication Number Publication Date
IT8667759A0 IT8667759A0 (it) 1986-10-07
IT1195192B true IT1195192B (it) 1988-10-12

Family

ID=11305073

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67759/86A IT1195192B (it) 1986-10-07 1986-10-07 Comando valvole per motori ad alberi a camme in testa

Country Status (5)

Country Link
US (1) US4773359A (it)
EP (1) EP0263794B1 (it)
DE (1) DE3767266D1 (it)
ES (1) ES2019664B3 (it)
IT (1) IT1195192B (it)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4850311A (en) * 1988-12-09 1989-07-25 General Motors Corporation Three dimensional cam cardanic follower valve lifter
FR2668797A1 (fr) * 1990-11-05 1992-05-07 Silvetti Gabriel Culasse pour moteurs thermiques avec soupapes a levee variable.
DE4039256C2 (de) * 1990-12-08 1996-05-09 Schaeffler Waelzlager Kg Einrichtung zur gleichzeitigen Betätigung zweier Gaswechselventile einer Brennkraftmaschine
US5159906A (en) * 1991-05-03 1992-11-03 Ford Motor Company Adjustable valve system for an internal combustion engine
DE4117566A1 (de) * 1991-05-29 1992-12-03 Audi Ag Ventilsteuerung fuer eine brennkraftmaschine
DE4124305C2 (de) * 1991-07-23 1997-12-18 Audi Ag Ventiltrieb für eine Brennkraftmaschine
IT1257540B (it) * 1992-05-22 1996-01-30 Ferrari Spa Sistema di comando di valvole per un motore endotermico a fasatura variabile, in particolare un motore con piu' valvole per cilindro.
DE4229186C2 (de) * 1992-09-02 1994-11-03 Steckhan Helmut Prof Dr Ventilsteuerung
DE4230809C2 (de) * 1992-09-02 1995-03-09 Steckhan Helmut Prof Dr Ventilsteuerung für Brennkraftmaschinen
IT1270443B (it) * 1993-02-10 1997-05-05 Fiat Auto Spa Comando di distribuzione a geometria variabile per un motore a combustione interna.
DE4410124A1 (de) * 1994-03-24 1995-09-28 Schaeffler Waelzlager Kg Verdrehsicherung eines Traversenstößels einer Ventilbetätigungseinrichtung einer Brennkraftmaschine
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
DE69810830D1 (de) * 1997-03-27 2003-02-27 Toyota Motor Co Ltd Ventilsteuerung für eine Brennkraftmaschine
JPH10299445A (ja) * 1997-04-18 1998-11-10 Otix:Kk 可変動弁機構
JP2000104570A (ja) * 1998-09-28 2000-04-11 Toyota Motor Corp 内燃機関の回転数制御装置
GB2359608B (en) * 1998-10-30 2002-06-19 Christopher Paulet Mel Walters Engine with offset cam follower-valve stem arrangement
WO2003074845A1 (fr) * 2002-03-04 2003-09-12 A.C.E. Tech Co., Ltd. Systeme de distribution a soupape reglable d'un moteur a combustion interne
US6871622B2 (en) 2002-10-18 2005-03-29 Maclean-Fogg Company Leakdown plunger
US7028654B2 (en) 2002-10-18 2006-04-18 The Maclean-Fogg Company Metering socket
US7273026B2 (en) 2002-10-18 2007-09-25 Maclean-Fogg Company Roller follower body
US7128034B2 (en) 2002-10-18 2006-10-31 Maclean-Fogg Company Valve lifter body
US7191745B2 (en) 2002-10-18 2007-03-20 Maclean-Fogg Company Valve operating assembly
EP1646770A1 (en) * 2003-06-30 2006-04-19 Christopher Paulet Melmoth Walters Valve gear
DE602005025880D1 (de) * 2005-10-11 2011-02-24 Eaton Srl Rollenschlepphebel mit Ventilbrücke als integraler Bestandteil des Rollenschlepphebels
DE102006058093A1 (de) * 2006-12-09 2008-06-12 Schaeffler Kg Ventiltrieb
DE102007020108A1 (de) 2007-04-28 2008-10-30 Schaeffler Kg Raumnockenventiltrieb mit einem Nockenfolger zur Ausführung einer Schwenk- oder Kippbewegung um eine Bewegungsachse im Zylinderkopf einer Brennkraftmaschine
CN103352736A (zh) * 2013-07-11 2013-10-16 浙江大学 一种连续可变气门升程机构
DE102014016126A1 (de) * 2014-10-30 2016-05-04 Man Diesel & Turbo Se Brennkraftmaschine und Ventiltrieb für eine Brennkraftmaschine
US11236642B2 (en) 2020-05-04 2022-02-01 Caterpillar Inc. Valve lifter anti-rotation device and valve lifter assembly in valve actuation system
US11220933B2 (en) 2020-05-04 2022-01-11 Caterpillar Inc. Valve lifter anti-rotation device having cantilever bridge

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB132070A (en) * 1917-09-29 1919-09-11 Alessandro Anzani Improvements relating to the Valves of Internal Combustion Engines.
US1836111A (en) * 1925-03-23 1931-12-15 Fiat Spa Means for simultaneously operating the valves in internal combustion engines
GB253799A (en) * 1925-11-24 1926-06-24 Guido Fornaca Improved valve mechanism for internal combustion engines
FR684654A (fr) * 1929-11-08 1930-06-30 Dispositif perfectionné de commande des soupapes
GB354116A (en) * 1929-11-08 1931-08-06 Marius Jean Baptiste Barbarou Improvements in valve actuating devices for internal combustion engines
GB465540A (en) * 1936-01-31 1937-05-10 Fairey Aviat Co Ltd Improvements in or relating to valve mechanism for internal combustion engines
IT1156204B (it) * 1982-10-12 1987-01-28 Fiat Auto Spa Sistema di punteria per motori con alberi a camme a profilo verticale
IT1159352B (it) * 1983-03-07 1987-02-25 Fiat Auto Spa Dispositivo di regolazione della posizione assiale di un albero a camme a profilo variabile particolarmente per il comando della distribuzione di un motore
DE3313225A1 (de) * 1983-04-13 1984-10-18 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen Ventilsteuerung fuer eine hubkolben-brennkraftmaschine
FR2553823B3 (fr) * 1983-10-25 1986-01-03 Renault Poussoir de soupape pour moteurs a combustion interne et arbres a cames en tete

Also Published As

Publication number Publication date
EP0263794A1 (en) 1988-04-13
IT8667759A0 (it) 1986-10-07
EP0263794B1 (en) 1991-01-09
DE3767266D1 (de) 1991-02-14
ES2019664B3 (es) 1991-07-01
US4773359A (en) 1988-09-27

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19951031