IT1247353B - Distribuzione per motore a quattro tempi con albero a cammes a rotazione variabile - Google Patents

Distribuzione per motore a quattro tempi con albero a cammes a rotazione variabile

Info

Publication number
IT1247353B
IT1247353B ITFI910137A ITFI910137A IT1247353B IT 1247353 B IT1247353 B IT 1247353B IT FI910137 A ITFI910137 A IT FI910137A IT FI910137 A ITFI910137 A IT FI910137A IT 1247353 B IT1247353 B IT 1247353B
Authority
IT
Italy
Prior art keywords
distribution
variable rotation
camshaft
stroke engine
rotation camshaft
Prior art date
Application number
ITFI910137A
Other languages
English (en)
Inventor
Lando Baldassini
Original Assignee
Lando Baldassini
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 Lando Baldassini filed Critical Lando Baldassini
Priority to ITFI910137A priority Critical patent/IT1247353B/it
Publication of ITFI910137A0 publication Critical patent/ITFI910137A0/it
Priority to EP92830305A priority patent/EP0518832A1/en
Priority to US07/897,321 priority patent/US5199393A/en
Publication of ITFI910137A1 publication Critical patent/ITFI910137A1/it
Application granted granted Critical
Publication of IT1247353B publication Critical patent/IT1247353B/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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/356—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear making the angular relationship oscillate, e.g. non-homokinetic drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H35/02—Gearings or mechanisms with other special functional features for conveying rotary motion with cyclically varying velocity ratio
    • 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
    • F01L1/02—Valve drive
    • F01L1/026—Gear drive
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H2035/001—Gearings with eccentrically mounted gears, e.g. for cyclically varying ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Pinball Game Machines (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

Albero a cammes a rotazione variabile comandato da un contralbero mediante trasmissione di due ingranaggi eccentrici.Questo meccanismo serve per ridurre la velocità dell'albero a cammes nel momento in cui viene ad agire sull'apertura delle valvole per vincere uno sforzo minore la pressione delle molle di richiamo, e per prolungare la durata delle fasi anche con profili di camme meno accentuati e comunque più favorevoli alla rotazione.
ITFI910137A 1991-06-11 1991-06-11 Distribuzione per motore a quattro tempi con albero a cammes a rotazione variabile IT1247353B (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITFI910137A IT1247353B (it) 1991-06-11 1991-06-11 Distribuzione per motore a quattro tempi con albero a cammes a rotazione variabile
EP92830305A EP0518832A1 (en) 1991-06-11 1992-06-10 Timing device in a four stroke engine with cyclically variable camshaft revolving speed
US07/897,321 US5199393A (en) 1991-06-11 1992-06-11 Timing apparatus for a four-stroke engine with camshafts running at differentiated angular rotation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITFI910137A IT1247353B (it) 1991-06-11 1991-06-11 Distribuzione per motore a quattro tempi con albero a cammes a rotazione variabile

Publications (3)

Publication Number Publication Date
ITFI910137A0 ITFI910137A0 (it) 1991-06-11
ITFI910137A1 ITFI910137A1 (it) 1992-12-11
IT1247353B true IT1247353B (it) 1994-12-12

Family

ID=11349679

Family Applications (1)

Application Number Title Priority Date Filing Date
ITFI910137A IT1247353B (it) 1991-06-11 1991-06-11 Distribuzione per motore a quattro tempi con albero a cammes a rotazione variabile

Country Status (3)

Country Link
US (1) US5199393A (it)
EP (1) EP0518832A1 (it)
IT (1) IT1247353B (it)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3177532B2 (ja) * 1992-01-27 2001-06-18 株式会社ユニシアジェックス 内燃機関の吸排気弁駆動制御装置
DE4320126C2 (de) * 1992-06-17 2000-07-06 Unisia Jecs Corp Nockenwellenanordnung zur Verwendung in einem Verbrennungsmotor
AU3366393A (en) * 1992-12-22 1994-07-19 Antonio Bernardini An alternative engine with internal combustion, and with rotating distribution and/or exploitation of the air reserve in the carter
EP0677139A1 (de) * 1992-12-30 1995-10-18 Meta Motoren- Und Energie-Technik Gmbh Vorrichtung zur variablen steuerung der ventile von brennkraftmaschinen, insbesondere zur drosselfreien laststeuerung von ottomotoren
GB2275096B (en) * 1993-02-15 1996-05-22 Unisia Jecs Corp Valve control device for internal combustion device
US5501186A (en) * 1993-07-27 1996-03-26 Unisia Jecs Corporation Engine valve control mechanism
GB9325168D0 (en) * 1993-12-08 1994-02-09 Frost Derek Variable valve timing
DE69516679T2 (de) * 1995-06-22 2000-11-23 Schneider (Europe) Gmbh, Buelach Arzneigerät für die Behandlung eines Teiles eines Körpergefässes mittels Ionisierungsbestrahlung
DE19964297B4 (de) * 1999-01-14 2006-05-11 Dorma Gmbh & Co Kg Türschließer
KR100366022B1 (ko) * 1999-06-18 2002-12-26 삼성전자 주식회사 전자렌지의 회전접시 구동장치 및 이를 가지는 전자렌지
DE19929296A1 (de) * 1999-06-25 2000-10-26 Ivo Andreas Zolleis Vorrichtung zum Variieren der Steuerzeiten einer Brennkraftmaschine
US7191745B2 (en) 2002-10-18 2007-03-20 Maclean-Fogg Company Valve operating assembly
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
US7128034B2 (en) 2002-10-18 2006-10-31 Maclean-Fogg Company Valve lifter body
DE10258848A1 (de) * 2002-12-17 2004-07-08 Robert Bosch Gmbh Vorrichtung zum Betätigen von Verstellkomponenten im Kraftfahrzeug
SK3540U (sk) 2003-02-05 2003-07-01 Murin Peter Ing Ozubené segmenty s premenlivým prevodovým pomerom
DE10341001B3 (de) * 2003-09-05 2005-03-17 Keiper Gmbh & Co. Kg Einsteller für einen Fahrzeugsitz
US7591240B2 (en) * 2006-12-28 2009-09-22 Perkins Engines Company Limited Method for providing a mixture of air and exhaust
US7614371B2 (en) * 2007-02-06 2009-11-10 Gm Global Technology Operations, Inc. Engine valvetrain having variable valve lift timing and duration
WO2021063202A1 (zh) * 2019-09-30 2021-04-08 苏州向势机械技术有限公司 一种双活塞杠杆高效发动机及其做功控制方法
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 (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR863706A (fr) * 1939-03-07 1941-04-08 Perfectionnements aux dispositifs d'entrainement pour produire une variation cyclique de vitesse
US3633555A (en) * 1969-06-27 1972-01-11 Ass Eng Ltd Variable camshaft mechanism
IN155023B (it) * 1980-01-02 1984-12-22 Nat Res Dev
JPS57210109A (en) * 1981-06-19 1982-12-23 Suzuki Motor Co Ltd Engine of double overhead cam type
DE3804333C2 (de) * 1988-02-12 1997-01-16 Josef Austermann Vorrichtung zur Veränderung des Steuerwinkels zwischen einem Maschinenteil und einer dieses betätigenden Antriebseinheit
JP2736997B2 (ja) * 1989-04-27 1998-04-08 本田技研工業株式会社 内燃機関の弁駆動装置および弁駆動方法
GB8925869D0 (en) * 1989-11-15 1990-01-04 Jaguar Cars Rotary drives
US5107802A (en) * 1990-05-28 1992-04-28 Honda Giken Kogyo Kabushiki Kaisha Valve driving mechanism for internal combustion engines

Also Published As

Publication number Publication date
EP0518832A1 (en) 1992-12-16
US5199393A (en) 1993-04-06
ITFI910137A0 (it) 1991-06-11
ITFI910137A1 (it) 1992-12-11

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Legal Events

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0001 Granted