ES8200742A1 - Procedimiento y dispositivo para mejorar el rendimiento de un motor de combustion interna por variacion selectiva del grado de compresion segun el regimen de un motor - Google Patents

Procedimiento y dispositivo para mejorar el rendimiento de un motor de combustion interna por variacion selectiva del grado de compresion segun el regimen de un motor

Info

Publication number
ES8200742A1
ES8200742A1 ES494651A ES494651A ES8200742A1 ES 8200742 A1 ES8200742 A1 ES 8200742A1 ES 494651 A ES494651 A ES 494651A ES 494651 A ES494651 A ES 494651A ES 8200742 A1 ES8200742 A1 ES 8200742A1
Authority
ES
Spain
Prior art keywords
procedure
regime
valve
internal combustion
degree
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
ES494651A
Other languages
English (en)
Other versions
ES494651A0 (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.)
Everllence France SAS
Original Assignee
Societe dEtudes de Machines Thermiques SEMT SA
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 Societe dEtudes de Machines Thermiques SEMT SA filed Critical Societe dEtudes de Machines Thermiques SEMT SA
Publication of ES8200742A1 publication Critical patent/ES8200742A1/es
Publication of ES494651A0 publication Critical patent/ES494651A0/es
Granted legal-status Critical Current

Links

Classifications

    • 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
    • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • F02B41/02—Engines with prolonged expansion
    • F02B41/04—Engines with prolonged expansion in main cylinders
    • 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
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • 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
    • F01L13/0031—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 by modification of tappet or pushrod length
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/06—Cutting-out cylinders
    • 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
    • F01L1/18—Rocking arms or levers
    • F01L2001/186—Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison
    • 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
    • F01L2013/0089—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 with means for delaying valve closing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

PROCEDIMIENTO Y DISPOSITIV DE VARIACION SELECTIVA DEL GRADO DE COMPRENSION EN UN MOTOR DE COMBUSTION INTERNA. EL PROCEDIMIENTO CONSISTE EN CERRAR LAS VALVULAR DE ADMISION EN REGIMENES LENTOS, ANTES DEL INSTANTE NORMAL DE CIERRE DESPUES DEL PUNTO MUERTO BAJO; CUANDO EL REGIMEN AUMENTA, SE PROLONGA EL PERIODO DE APERTURA E CASA VALVULA DE ADMISION MAS ALLA DEL INSTANTE NORMAL DE CIERRE, IMPIDIENDO QUE SE CIERRE ENTERAMENTE EN ESE INSTANTE, PERO REDUCIENDO LA SECCION DE PASO ENTRE LA VALVULA Y SU ASIENTO. EL DISPOSITIVO CONSTA DE UNA CADENA CINEMATICA DE TRANSMISION DE CADA VALVULA QUE SE EXTIENDE DESDE EL ARBOL DE LEVAS HASTA DICHA VALVULA ICLUSIVE; EL DISPOSITIVO DE CIERRE AVANZADO DE REGIMEN BAJO COMPRENDE UN SISTEMA DE TRANSMISION CON RETARDO DE ACCIONAMIENTO DE LA LEVA, PROVOCANDO UNA CARRERA MUERTA DE PERFIL DE LA LEVA.
ES494651A 1979-08-30 1980-08-29 Procedimiento y dispositivo para mejorar el rendimiento de un motor de combustion interna por variacion selectiva del grado de compresion segun el regimen de un motor Granted ES494651A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7921796A FR2464372A1 (fr) 1979-08-30 1979-08-30 Procede et dispositif pour ameliorer le rendement d'un moteur a combustion interne par variation selective au taux de compression effectif selon le regime du moteur

Publications (2)

Publication Number Publication Date
ES8200742A1 true ES8200742A1 (es) 1981-11-16
ES494651A0 ES494651A0 (es) 1981-11-16

Family

ID=9229221

Family Applications (1)

Application Number Title Priority Date Filing Date
ES494651A Granted ES494651A0 (es) 1979-08-30 1980-08-29 Procedimiento y dispositivo para mejorar el rendimiento de un motor de combustion interna por variacion selectiva del grado de compresion segun el regimen de un motor

Country Status (13)

Country Link
EP (1) EP0024994A1 (es)
JP (1) JPS5650231A (es)
AU (1) AU6191880A (es)
BR (1) BR8005437A (es)
DD (1) DD152832A5 (es)
DK (1) DK370080A (es)
ES (1) ES494651A0 (es)
FI (1) FI802683A7 (es)
FR (1) FR2464372A1 (es)
NO (1) NO802537L (es)
PL (1) PL226506A1 (es)
SE (1) SE8005910L (es)
YU (1) YU217280A (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6095114A (ja) * 1983-10-31 1985-05-28 Fujio Inoue 原動機の弁開閉機構装置
JPS61187526A (ja) * 1985-02-15 1986-08-21 Toyota Motor Corp 過給機付内燃機関のバルブタイミング制御装置
WO1989000643A1 (en) * 1987-07-18 1989-01-26 Graham Beverley Internal combustion engine
JPH10509494A (ja) * 1994-11-09 1998-09-14 ブレングル テイラー，ジョン 機関の改良
ATE263309T1 (de) * 2001-02-21 2004-04-15 Ge Jenbacher Gmbh & Co Ohg Ventiltrieb für eine brennkraftmaschine
DE102009041426A1 (de) 2009-09-16 2011-05-19 Thyssenkrupp Presta Teccenter Ag Nockenwelle mit variierbarer Ventilöffnungsdauer
EP3245394B1 (en) * 2014-12-08 2019-08-07 Wärtsilä Finland Oy A method of controlling an operation of an inlet valve system and an inlet valve control system
DE102015224759B4 (de) * 2015-12-10 2026-03-19 Bayerische Motoren Werke Aktiengesellschaft Verbrennungsmotor
KR20250065692A (ko) * 2022-10-12 2025-05-13 커민즈 인코포레이티드 개별 로스트 모션 디바이스를 포함하는 밸브 작동 시스템
KR20250058058A (ko) * 2022-10-12 2025-04-29 자콥스 비히클 시스템즈, 인코포레이티드. 개별 로스트 모션 디바이스

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1294510A (fr) * 1961-07-07 1962-05-26 Briggs & Stratton Corp Procédé de fonctionnement d'un moteur à combustion interne à quatre temps et moteur fonctionnant suivant ce procédé
JPS5179840A (es) * 1975-01-07 1976-07-12 Honda Motor Co Ltd
FR2341045A1 (fr) * 1976-02-13 1977-09-09 Bertin & Cie Utilisation economique d'un moteur a combustion interne polycylindrique par action sur la distribution
US4114643A (en) * 1976-07-02 1978-09-19 Nissan Motor Company, Limited Valve operating mechanism of internal combustion engine
US4134371A (en) * 1977-04-28 1979-01-16 Hausknecht Louis A Valve control system

Also Published As

Publication number Publication date
NO802537L (no) 1981-03-02
SE8005910L (sv) 1981-03-01
AU6191880A (en) 1981-03-05
FR2464372A1 (fr) 1981-03-06
BR8005437A (pt) 1981-03-31
DK370080A (da) 1981-03-01
FI802683A7 (fi) 1981-01-01
EP0024994A1 (fr) 1981-03-11
JPS5650231A (en) 1981-05-07
PL226506A1 (es) 1981-05-22
YU217280A (en) 1983-10-31
DD152832A5 (de) 1981-12-09
ES494651A0 (es) 1981-11-16

Similar Documents

Publication Publication Date Title
ES376448A1 (es) Perfeccionamientos relativos a mecanismos accionadores de valvula para motores de combustion interna.
GB967697A (en) Internal combustion engine valve gear
SE9302159L (sv) Ventilmekanism i en förbränningsmotor
ES8202911A1 (es) Perfeccionamientos en motores de combustion interna
GB1138633A (en) Improvements in devices for starting a double action free piston engine having a single cylinder
ES8401568A1 (es) Dispositivo de distribucion para motor axial de combustion interna.
SE8000697L (sv) Ventillyftanordning vid forbrenningsmotor
ES477818A1 (es) Procedimiento y dispositivo para mejorar el enfriamiento ex-terno de una valvula de escape de un motor de combustion in-terna, principalmente de un motor diesel sobrealimentado.
ES494651A0 (es) Procedimiento y dispositivo para mejorar el rendimiento de un motor de combustion interna por variacion selectiva del grado de compresion segun el regimen de un motor
ES308944A1 (es) Dispositivo para mejorar el rendimiento de los motores de combustion interna y valvulas que permiten su aplicacion
ES283511A1 (es) Perfeccionamientos en los sistemas de accionamiento de válvulas, para motores de combustión alternativos
JPS5569721A (en) Suction valve type internal combustion engine
DE602005003222D1 (de) Ventiltriebvorrichtung
JPS5357310A (en) Exhaust device for internal combusion engine
GB846133A (en) Improvements relating to valve gear for internal combustion engines
ES464421A1 (es) Dispositivo de recirculacion de gas de escape de motores de combustion interna.
GB1400254A (en) Internal combustion engine overhead poppet valve gear
GB958341A (en) Improvements in injection type combustion engine with v-cylinder assemblies
GB1072503A (en) Four-stroke internal combustion engine
GB1109387A (en) Improvements in or relating to devices for cutting off the fuel supply in injection type internal combustion engines
GB166740A (en) Improvements in or relating to valve mechanism for internal combustion engines
GB239945A (en) Improvements in internal combustion engines
GB188738A (en) Improvements in and relating to pneumatic starting and reversing apparatus for two-stroke cycle internal combustion engines
GB692886A (en) Improvements in or relating to hydraulic tappet mechanisms for internal combustion engines
FR1059630A (fr) Dispositif de distribution pour moteur à explosion, supprimant soupapes et cames desoupapes