DE3661955D1 - Tappet system for internal combustion engines fitted with variable-profile camshafts - Google Patents

Tappet system for internal combustion engines fitted with variable-profile camshafts

Info

Publication number
DE3661955D1
DE3661955D1 DE8686830179T DE3661955T DE3661955D1 DE 3661955 D1 DE3661955 D1 DE 3661955D1 DE 8686830179 T DE8686830179 T DE 8686830179T DE 3661955 T DE3661955 T DE 3661955T DE 3661955 D1 DE3661955 D1 DE 3661955D1
Authority
DE
Germany
Prior art keywords
camshafts
profile
variable
internal combustion
combustion engines
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.)
Expired
Application number
DE8686830179T
Other languages
English (en)
Inventor
Andrea Titolo
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.)
Fiat Auto SpA
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
Application granted granted Critical
Publication of DE3661955D1 publication Critical patent/DE3661955D1/de
Expired 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
    • 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
    • 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
    • F01L13/0042—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
DE8686830179T 1985-07-02 1986-06-25 Tappet system for internal combustion engines fitted with variable-profile camshafts Expired DE3661955D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67604/85A IT1182480B (it) 1985-07-02 1985-07-02 Sistema di punteria per motori a combustione interna provvisti di alberi con camme a profilo variabile

Publications (1)

Publication Number Publication Date
DE3661955D1 true DE3661955D1 (en) 1989-03-02

Family

ID=11303799

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686830179T Expired DE3661955D1 (en) 1985-07-02 1986-06-25 Tappet system for internal combustion engines fitted with variable-profile camshafts

Country Status (7)

Country Link
US (1) US4693214A (de)
EP (1) EP0208663B1 (de)
JP (1) JPH0745803B2 (de)
BR (1) BR8603228A (de)
DE (1) DE3661955D1 (de)
ES (1) ES8704584A1 (de)
IT (1) IT1182480B (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3624612A1 (de) * 1986-07-21 1988-02-04 Mtu Friedrichshafen Gmbh Ventilsteuerung fuer eine hubkolben-brennkraftmaschine
US4850311A (en) * 1988-12-09 1989-07-25 General Motors Corporation Three dimensional cam cardanic follower valve lifter
US5048474A (en) * 1989-02-22 1991-09-17 Nissan Motor Co., Ltd. Valve train for automotive engine
US5159906A (en) * 1991-05-03 1992-11-03 Ford Motor Company Adjustable valve system for an internal combustion engine
US5211143A (en) * 1991-05-03 1993-05-18 Ford Motor Company Adjustable valve system for an internal combustion engine
DE4230809C2 (de) * 1992-09-02 1995-03-09 Steckhan Helmut Prof Dr Ventilsteuerung für Brennkraftmaschinen
AUPN926596A0 (en) * 1996-04-16 1996-05-09 Roberts, Frederick William Valve timing system
US5803033A (en) * 1996-11-08 1998-09-08 Toyota Jidosha Kabushiki Kaisha Valve drive apparatus for an internal combustion engine having a convex shim between a cam and a valve
JPH10196333A (ja) * 1997-01-14 1998-07-28 Toyota Motor Corp バルブリフタ構造
EP1128030A3 (de) 1997-04-04 2003-02-26 Toyota Jidosha Kabushiki Kaisha Verfahren und Vorrichtung zur Messung einer dreidimensionalen Nockenform
JPH11200824A (ja) * 1998-01-20 1999-07-27 Denso Corp 可変弁制御装置
JPH11210433A (ja) * 1998-01-29 1999-08-03 Denso Corp 可変弁制御装置
JPH11218014A (ja) 1998-02-03 1999-08-10 Toyota Motor Corp 可変バルブタイミング装置
JP3539182B2 (ja) 1998-02-20 2004-07-07 トヨタ自動車株式会社 可変バルブタイミング装置
JP2000073710A (ja) * 1998-08-31 2000-03-07 Toyota Motor Corp ３次元カム用揺動フォロワ機構
JP3700409B2 (ja) 1998-09-04 2005-09-28 トヨタ自動車株式会社 ３次元カム用バルブリフタおよび可変動弁装置
JP2000104570A (ja) * 1998-09-28 2000-04-11 Toyota Motor Corp 内燃機関の回転数制御装置
US6318313B1 (en) 1998-10-06 2001-11-20 Toyota Jidosha Kabushiki Kaisha Variable performance valve train having three-dimensional cam
US6425359B2 (en) * 2000-06-23 2002-07-30 Honda Giken Kogyo Kabushiki Kaisha Valve moving apparatus of an internal combustion engine
DE10225721A1 (de) * 2001-06-25 2003-01-09 Ina Schaeffler Kg Brennkraftmaschine mit einer Verdehsicherungs-Brücke für Ventilstößel
DE102005021788B4 (de) * 2005-05-11 2006-12-28 Krüger, Hermann, Prof. Dr.-Ing. Verfahren und Vorrichtung zur Fertigung eines dreidimensionalen Nockens und dreidimensionaler Nocken, insbesondere zur variablen Betätigung von Hubventilen in Brennkraftmaschinen
DE102006047293A1 (de) * 2006-10-06 2008-04-10 Schaeffler Kg Ventiltrieb für eine Brennkraftmaschine mit verschiebbaren Raumnocken
US8171906B2 (en) 2008-10-21 2012-05-08 Apq Development, Llc Valve lifter guide and method of using same
DE102011106395A1 (de) 2011-07-02 2013-01-03 Man Truck & Bus Ag Ventilsteuerung für mindestens ein Ventil einer Brennkraftmaschine
CN103147814B (zh) * 2013-02-28 2015-03-11 长城汽车股份有限公司 用于发动机的可变气门升程驱动装置的挺柱机构
CN103161538B (zh) * 2013-02-28 2015-04-22 长城汽车股份有限公司 用于发动机的可变气门升程驱动装置的摇臂机构
EP2808503A1 (de) 2013-05-27 2014-12-03 FPT Motorenforschung AG System zur Durchführung eines Motorbremsverfahrens basierend auf Dekompressionsereignissen eines 4-Takt-Motors
CN103352736A (zh) * 2013-07-11 2013-10-16 浙江大学 一种连续可变气门升程机构
CN104279014B (zh) * 2014-08-04 2018-04-27 武汉东方骏驰精密制造有限公司 新型抗旋转滚轮升降挺柱
CN113945307B (zh) * 2021-10-08 2023-07-21 哈尔滨工程大学 一种测量发动机凸轮挺柱接触力的传感器及测量方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1579850A (en) * 1926-04-06 Vaxve tappet
US905733A (en) * 1908-04-27 1908-12-01 Arthur J Miller Internal-combustion engine.
US1100912A (en) * 1913-07-19 1914-06-23 Rich Tool Company Valve-actuating device for internal-combustion engines.
US1123142A (en) * 1914-05-11 1914-12-29 Rich Tool Company Valve-actuating device for internal-combustion engines.
US1413535A (en) * 1919-02-24 1922-04-18 Willys Overland Co Automatic take-up device
US1613012A (en) * 1924-06-20 1927-01-04 Leslie M Baker Valve mechanism
US2051313A (en) * 1933-08-14 1936-08-18 Boyle Motor Products Company Valve attachment
FR1098374A (fr) * 1953-04-08 1955-07-25 Albion Motors Ltd Perfectionnements aux systèmes de liaison mécaniques
SU775358A1 (ru) * 1977-05-04 1980-10-30 Пензенский Дизельный Завод Производственного Объединения По Дизелям И Турбокомпрессорам Механизм газораспределени
GB2017820B (en) * 1978-04-01 1982-11-10 Daimler Benz Ag Multicylinder internal combustion engine with means for interrupting valve operation
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) * 1983-02-04 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
US4587934A (en) * 1983-05-16 1986-05-13 Moores Keith J Variable-timing valve actuating mechanism

Also Published As

Publication number Publication date
IT1182480B (it) 1987-10-05
ES8704584A1 (es) 1987-04-01
US4693214A (en) 1987-09-15
JPS627907A (ja) 1987-01-14
EP0208663A1 (de) 1987-01-14
IT8567604A0 (it) 1985-07-02
BR8603228A (pt) 1987-02-24
EP0208663B1 (de) 1989-01-25
ES556412A0 (es) 1987-04-01
JPH0745803B2 (ja) 1995-05-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee