ES2050034T3 - Mecanismo de distribucion por valvulas para motores de combustion interna. - Google Patents

Mecanismo de distribucion por valvulas para motores de combustion interna.

Info

Publication number
ES2050034T3
ES2050034T3 ES91307740T ES91307740T ES2050034T3 ES 2050034 T3 ES2050034 T3 ES 2050034T3 ES 91307740 T ES91307740 T ES 91307740T ES 91307740 T ES91307740 T ES 91307740T ES 2050034 T3 ES2050034 T3 ES 2050034T3
Authority
ES
Spain
Prior art keywords
valve
cams
cam
cam follower
axle
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 - Lifetime
Application number
ES91307740T
Other languages
English (en)
Inventor
Robert David Norris
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.)
Ricardo PLC
Original Assignee
Ricardo Consulting Engineers Ltd
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 Ricardo Consulting Engineers Ltd filed Critical Ricardo Consulting Engineers Ltd
Application granted granted Critical
Publication of ES2050034T3 publication Critical patent/ES2050034T3/es
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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/08—Shape of cams
    • 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

Landscapes

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

Abstract

UN MECANISMO DE DISTRIBUCION PARA UN MOTOR DE COMBUSTION INTERNA INCLUYE UNA PRIMERA LEVA (15) MONTADO PARA GIRAR ALREDEDOR DE UN PRIMER EJE, UNA SEGUNDA LEVA (21) MONTADA PARA GIRAR ALREDEDOR DE UN SEGUNDO EJE QUE ES SUSTANCIALMENTE PARALELO AL PRIMER EJE, UN MECANISMO DE CAMBIO DE FASE COLOCADO SELECTIVAMENTE PARA VARIAR LA FASE DE UNA DE LAS LEVAS EN RELACION A LA OTRA, UNA VALVULA (29) MOVIL ALREDEDOR DE UN EJE DE VALVULA (30), UN MUELLE QUE IMPULSA LA VALVULA EN UNA PRIMERA DIRECCION A LO LARGO DEL EJE DE VALVULA Y UN SEGUIDOR DE LEVA (25) QUE TIENE SUPERFICIES DE CONTACTO PRIMERA Y SEGUNDA (18, 24) COLOCADAS PARA ACOPLARSE MEDIANTE LAS LEVAS PRIMERA Y SEGUNDA, RESPECTIVAMENTE, Y SE COLOCA PARA TRANSMITIR EL MOVIMIENTO DE LAS LEVAS A LA VALVULA PERO ES MOVIL CON RESPECTO A LA VALVULA. EL PERFIL DE LA PRIMERA LEVA (15) INCLUYE UNA ZONA ASCENDENTE (202) PARA MOVER LA VALVULA (29) EN UNA SEGUNDA DIRECCION OPUESTA A LA PRIMERA DIRECCION Y UNA RAMPA DE DESCENSO (203) PARA CONTROLAR EL MOVIMIENTO DEL SEGUIDOR DE LEVA CON RESPECTO A LA VALVULA. EL GRADIENTE DE LA RAMPA DE ASCENSO (201) Y DE LA RAMPA DE DESCENSO (203) ES SUSTANCIALMENTE EL MISMO AL MENOS EN PARTE DE SU LONGITUD. LA FASE DE LAS DOS LEVAS ES TAL QUE LAS VECES DURANTE LAS QUE LAS RAMPAS DE ASCENSO Y DESCENSO CONTACTAN CON EL SEGUIDOR SE SUPERPONEN AL MENOS PARCIALMENTE EN UN MOMENTO DURANTE EL CUAL LA VALVULA ESTA ESTACIONARIA EN LA POSICION CERRADA. ESTO SIGNIFICA QUE EL SEGUIDOR DE LEVA SE MUEVE CON RESPECTO A LA VALVULA Y QUE LAS LEVAS PERMANECEN SUSTANCIALMENTE EN CONTACTO CON EL SEGUIDOR DE LEVA EN TODO MOMENTO.
ES91307740T 1990-08-23 1991-08-22 Mecanismo de distribucion por valvulas para motores de combustion interna. Expired - Lifetime ES2050034T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909018558A GB9018558D0 (en) 1990-08-23 1990-08-23 Valve gear for internal combustion engines

Publications (1)

Publication Number Publication Date
ES2050034T3 true ES2050034T3 (es) 1994-05-01

Family

ID=10681132

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91307740T Expired - Lifetime ES2050034T3 (es) 1990-08-23 1991-08-22 Mecanismo de distribucion por valvulas para motores de combustion interna.

Country Status (6)

Country Link
US (1) US5178105A (es)
EP (1) EP0472430B1 (es)
JP (1) JP2632095B2 (es)
DE (1) DE69101199T2 (es)
ES (1) ES2050034T3 (es)
GB (1) GB9018558D0 (es)

Families Citing this family (25)

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DE69222185D1 (de) * 1991-04-24 1997-10-16 Donald Charles Wride Ventilantriebsvorrichtung
IT1257904B (it) * 1992-06-19 1996-02-16 Fiat Ricerche Dispositivo di comando di una valvola di un motore a combustione interna.
SE513062C2 (sv) * 1992-06-30 2000-06-26 Fanja Ltd Förfarande för styrning av arbetsförloppet i en förbränningskolvmotor samt motor för genomförande av förfarandet
DE4322480C2 (de) * 1993-07-06 1996-05-02 Meta Motoren Energietech Vorrichtung zur variablen Ventilsteuerung von Brennkraftmaschinen
US5441021A (en) * 1994-10-31 1995-08-15 Moore Variable Cam, Inc. Variable valve actuation camshaft
DE19501386C2 (de) * 1995-01-18 1998-12-10 Meta Motoren Energietech Verfahren zum Steuern einer fremdgezündeten, mit einer Kraftstoffeinspritzanlage ausgerüsteten Kolbenbrennkraftmaschine
DE19600536C2 (de) * 1996-01-09 2002-08-22 Meta Motoren Energietech Vorrichtung zur variablen Steuerung eines Einlaßventils
DE19745761A1 (de) * 1997-10-16 1999-04-22 Daimler Chrysler Ag Variable Ventilsteuerung für Hubkolben-Brennkraftmaschinen
DE19745716A1 (de) * 1997-10-16 1999-04-22 Daimler Chrysler Ag Vorrichtung zur variablen Ventilsteuerung für eine Brennkraftmaschine
DE19747031A1 (de) * 1997-10-24 1999-04-29 Daimler Chrysler Ag Variable Ventilsteuerung für Brennkraftmaschinen
DE19747035A1 (de) * 1997-10-24 1999-04-29 Daimler Chrysler Ag Variable Ventilsteuerung
AUPP139598A0 (en) * 1998-01-19 1998-02-05 D.A.R.U.T. Pty Ltd Cam and cam followers for engines
DE19814800A1 (de) * 1998-04-02 1999-10-14 Daimler Chrysler Ag Variable Ventilsteuerung für eine Hubkolben-Brennkraftmaschine
AUPP330998A0 (en) * 1998-05-04 1998-05-28 Bentley, Paul Joseph Variable duration, overlap and cam timing
DE59911574D1 (de) * 1998-05-12 2005-03-17 Siemens Ag Einrichtung zum Steuern einer Vorrichtung zum Verstellen des Ventilhubverlaufs eines Gaswechselventils einer Brennkraftmaschine
DE50211737D1 (de) 2002-03-08 2008-04-03 Ford Global Tech Llc Viertakt-Ottomotor mit variabler Ventilsteuerung
DE10303601A1 (de) 2003-01-30 2004-08-12 Mahle Ventiltrieb Gmbh Ventilsteuerung
AT500600B1 (de) * 2004-07-20 2007-09-15 Avl List Gmbh Brennkraftmaschine mit innerer verbrennung
DE112005000030D2 (de) 2004-07-17 2006-10-05 Mahle Ventiltrieb Gmbh Steuereinrichtung für ein Ventil, insbesondere ein Gaswechselventil eines Verbrennungsmotors
JP5338971B2 (ja) * 2010-03-11 2013-11-13 トヨタ自動車株式会社 内燃機関の弁駆動装置
US8448617B2 (en) * 2010-10-20 2013-05-28 GM Global Technology Operations LLC Engine including camshaft with partial lobe
DE102012214645A1 (de) 2012-08-17 2014-02-20 Mahle International Gmbh Brennkraftmaschine mit zwei gegenläufigen Nockenwellen
CN103726894A (zh) * 2013-12-30 2014-04-16 长城汽车股份有限公司 用于发动机的配气机构及具有其的车辆
CN107849990B (zh) 2015-03-13 2021-02-05 通用汽车环球科技运作有限责任公司 具有多级增压的升高压缩比的内燃发动机
CN104895634A (zh) * 2015-06-30 2015-09-09 常州机电职业技术学院 一种连续可变正时装置

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US1500342A (en) * 1923-10-29 1924-07-08 Milton H Smith Valve construction
US1885796A (en) * 1930-02-15 1932-11-01 Eoulet Georges Valve operating mechanism
US2814283A (en) * 1954-04-12 1957-11-26 Daimler Benz Ag Valve control mechanism, particularly for high speed internal combustion engines
US2833258A (en) * 1955-04-28 1958-05-06 Daimler Benz Ag Valve mechanism for internal combustion engines
US3313280A (en) * 1965-04-16 1967-04-11 Automobile Racing Club Of Okla Variable valve timing mechanism
FR2209395A5 (es) * 1972-12-01 1974-06-28 Peugeot & Renault
DE2456752A1 (de) * 1974-11-30 1976-08-12 Kloeckner Humboldt Deutz Ag Ventilsteuerung fuer hubkolbenbrennkraftmaschinen
JPS57188716A (en) * 1981-05-15 1982-11-19 Honda Motor Co Ltd Variable valve timing device
JPS5943911A (ja) * 1982-09-03 1984-03-12 Toyota Motor Corp 内燃機関用カム
JPS6030406A (ja) * 1983-07-29 1985-02-16 Honda Motor Co Ltd 内燃機関のバルブ強制開閉装置
US4546735A (en) * 1984-01-23 1985-10-15 Southwest Research Institute Valve actuator
DE3519319A1 (de) * 1985-05-30 1986-12-04 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Variable ventilsteuerung fuer eine hubkolben-brennkraftmaschine
GB2180597A (en) * 1985-09-13 1987-04-01 Frederick Arthur Summerlin Valve control
US4771742A (en) * 1986-02-19 1988-09-20 Clemson University Method for continuous camlobe phasing
US4943352A (en) * 1987-06-15 1990-07-24 Purifiner Manufacturing Company Oil reclamation device
JPH0630407B2 (ja) * 1987-08-31 1994-04-20 日本電気株式会社 電子走査アンテナ
DE68918317T2 (de) * 1988-03-28 1995-01-19 Nissan Motor Steueranordnung für Tellerventile einer Brennkraftmaschine und ähnliches.
US5048474A (en) * 1989-02-22 1991-09-17 Nissan Motor Co., Ltd. Valve train for automotive engine
US5052350A (en) * 1990-11-02 1991-10-01 King Brian T Device to combine the motions of two camlobes differentially phased

Also Published As

Publication number Publication date
JP2632095B2 (ja) 1997-07-16
GB9018558D0 (en) 1990-10-10
EP0472430A3 (en) 1992-05-27
DE69101199D1 (de) 1994-03-24
DE69101199T2 (de) 1994-06-01
JPH05133211A (ja) 1993-05-28
EP0472430B1 (en) 1994-02-16
US5178105A (en) 1993-01-12
EP0472430A2 (en) 1992-02-26

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