ES274927U - Empujavalvulas para motores de combustion interna - Google Patents

Empujavalvulas para motores de combustion interna

Info

Publication number
ES274927U
ES274927U ES1983274927U ES274927U ES274927U ES 274927 U ES274927 U ES 274927U ES 1983274927 U ES1983274927 U ES 1983274927U ES 274927 U ES274927 U ES 274927U ES 274927 U ES274927 U ES 274927U
Authority
ES
Spain
Prior art keywords
tappet
internal combustion
camshafts
combustion engines
variable profile
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
ES1983274927U
Other languages
English (en)
Other versions
ES274927Y (es
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
Publication of ES274927U publication Critical patent/ES274927U/es
Application granted granted Critical
Publication of ES274927Y publication Critical patent/ES274927Y/es
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
    • 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

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)
  • Gears, Cams (AREA)

Abstract

1. Empujaválvulas para motores de combustión interna de ejes de leva de perfil variable (1) caracterizado porque comprende: - un bloque deslizante paralelepípedo esencialmente rectangular (3) que tiene una superficie plana (4) para el contacto con una leva (2) y en su superficie opuesta a la superficie de contacto (4), un saliente (5) de sección parcialmente circular que se extiende coaxialmente por todo el eje principal del bloque (3); - un soporte de cojinete paralelepípedo esencialmente rectangular (7) para el bloque (3), que tiene una superficie superior un asidero (6) que es coaxial con su eje principal y acoplable por el saliente (5) del bloque deslizante (3) y dos guías semi-cilindricas (8) dispuestas en el centro de los lados opuestos para impedir el giro del soporte (7) alrededor del eje de la válvula, cuando trabaja, y - una copa cilíndrica (13) que tiene una superficie superior, dos patillas (12) que definen un asiento receptor para el soporte del cojinete (7) y trabajando, poderresisitir el empuje generado por el deslizamiento de la leva (2) en el bloque deslizante (3) y un asiento cilíndrico (14) para recibir discos (5) de espesores distintos al realizar el ajuste del empujaválvulas. 2. Empujaválvulas según la reivindicación 1, caracterizado porque las guías semi-cilíndricas (8) tiene paredes planas respectivas (9) que se encaran hacia dentro y son paralelas al eje principal del soporte de cojinete (7). 3. Empujaválvulas según la reivindicación 1, caracterizado porque las guías semi-cilíndricas (8) se introduce en los asientos semi-cilíndricos (11) formados en la culata (10) de un motor. 4. Empujaválvulas según la reivindicación 1, caracterizado porque las patillas (12) tienen una curvatura hacia dentro ligera respecto a la pared lateral de la copa (13). 5. Empujaválvulas para motores de combustión interna.
ES1983274927U 1982-10-12 1983-10-11 Empujavalvulas para motores de combustion interna Expired ES274927Y (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68194/82A IT1156204B (it) 1982-10-12 1982-10-12 Sistema di punteria per motori con alberi a camme a profilo verticale

Publications (2)

Publication Number Publication Date
ES274927U true ES274927U (es) 1984-02-16
ES274927Y ES274927Y (es) 1984-10-01

Family

ID=11308437

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1983274927U Expired ES274927Y (es) 1982-10-12 1983-10-11 Empujavalvulas para motores de combustion interna

Country Status (7)

Country Link
US (1) US4517936A (es)
EP (1) EP0108238B1 (es)
JP (1) JPS5990711A (es)
BR (1) BR8305611A (es)
DE (1) DE3361240D1 (es)
ES (1) ES274927Y (es)
IT (1) IT1156204B (es)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1182480B (it) * 1985-07-02 1987-10-05 Fiat Auto Spa Sistema di punteria per motori a combustione interna provvisti di alberi con camme a profilo variabile
WO1987006647A1 (en) * 1986-05-01 1987-11-05 Chris Walters (Engineering Consultant) Limited Valve-control mechanism
GB8610727D0 (en) * 1986-05-01 1986-06-04 Walters Eng Consultant Ltd Chr Valve lift mechanism
IT1195192B (it) * 1986-10-07 1988-10-12 Fiat Auto Spa Comando valvole per motori ad alberi a camme in testa
GB8711993D0 (en) * 1987-05-21 1987-06-24 Jaguar Cars Cam mechanisms
JPH029362U (es) * 1988-06-30 1990-01-22
US4850311A (en) * 1988-12-09 1989-07-25 General Motors Corporation Three dimensional cam cardanic follower valve lifter
CA2054877C (en) * 1990-12-14 1994-06-14 John Joseph Krieg Low mass valve lifters
US5159906A (en) * 1991-05-03 1992-11-03 Ford Motor Company Adjustable valve system for an internal combustion engine
GB2279718A (en) * 1993-07-02 1995-01-11 Robert Alexander James A variable camshaft
JP3275761B2 (ja) * 1996-05-13 2002-04-22 トヨタ自動車株式会社 内燃機関の動弁装置
JPH1030413A (ja) * 1996-07-12 1998-02-03 Toyota Motor Corp 内燃機関のバルブ特性制御装置
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
DE59808217D1 (de) * 1997-03-21 2003-06-12 Stefan Battlogg Nockenwelle
JPH10317927A (ja) * 1997-05-15 1998-12-02 Toyota Motor Corp 内燃機関のバルブ特性制御装置
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
US7273026B2 (en) 2002-10-18 2007-09-25 Maclean-Fogg Company Roller follower body
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
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
DE10332980A1 (de) * 2003-07-21 2005-02-10 Bayerische Motoren Werke Ag Ventilstößeleinrichtung, insbesondere drehgesicherter Tassenstößel mit gekrümmter Nockenfolgefläche
US20060196457A1 (en) * 2005-03-03 2006-09-07 Timken Us Corporation Valve actuator assembly
KR101209743B1 (ko) * 2010-09-14 2012-12-07 현대자동차주식회사 가변 밸브 리프트 장치
CN102518632B (zh) * 2011-12-01 2016-05-25 洛阳巨创轴承科技有限公司 一种防止背衬轴承挡圈与滚子组非正常接触的方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733619A (en) * 1956-02-07 smith
GB605242A (en) * 1945-02-09 1948-07-19 Saurer Ag Adolph Improvements in and relating to cam-actuated tappets
US2508557A (en) * 1946-11-15 1950-05-23 American Bosch Corp Eccentric follower mechanism
US3730150A (en) * 1971-10-20 1973-05-01 S Codner Method and apparatus for control of valve operation
JPS55161907A (en) * 1979-06-06 1980-12-16 Yamaha Motor Co Ltd Tappet shim exchanging tool for engine
US4335685A (en) * 1979-10-19 1982-06-22 Caterpillar Tractor Co. Lifter assembly
US4249428A (en) * 1980-02-04 1981-02-10 The Singer Company Cam follower with pivotally movable cam engagable shoe

Also Published As

Publication number Publication date
IT1156204B (it) 1987-01-28
DE3361240D1 (en) 1985-12-19
EP0108238A1 (en) 1984-05-16
IT8268194A0 (it) 1982-10-12
EP0108238B1 (en) 1985-11-13
JPS5990711A (ja) 1984-05-25
US4517936A (en) 1985-05-21
BR8305611A (pt) 1984-05-15
JPH0545765B2 (es) 1993-07-12
ES274927Y (es) 1984-10-01

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