BRPI0419031A - aparelho para um motor de combustão interna - Google Patents

aparelho para um motor de combustão interna

Info

Publication number
BRPI0419031A
BRPI0419031A BRPI0419031-9A BRPI0419031A BRPI0419031A BR PI0419031 A BRPI0419031 A BR PI0419031A BR PI0419031 A BRPI0419031 A BR PI0419031A BR PI0419031 A BRPI0419031 A BR PI0419031A
Authority
BR
Brazil
Prior art keywords
engine
exhaust valve
lobe portion
measurement
internal combustion
Prior art date
Application number
BRPI0419031-9A
Other languages
English (en)
Inventor
Ivar Sahlen
Original Assignee
Volvo Lastvagnar Ab
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 Volvo Lastvagnar Ab filed Critical Volvo Lastvagnar Ab
Publication of BRPI0419031A publication Critical patent/BRPI0419031A/pt
Publication of BRPI0419031B1 publication Critical patent/BRPI0419031B1/pt

Links

Classifications

    • 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
    • F02D13/0273—Multiple actuations of a valve within an engine cycle
    • 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
    • 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
    • F02D13/0242—Variable control of the exhaust valves only
    • F02D13/0246—Variable control of the exhaust valves only changing valve lift or valve lift and timing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/01—Internal exhaust gas recirculation, i.e. wherein the residual exhaust gases are trapped in the cylinder or pushed back from the intake or the exhaust manifold into the combustion chamber without the use of additional passages
    • 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
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the valves
    • 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
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • F01L13/065—Compression release engine retarders of the "Jacobs Manufacturing" type
    • 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
    • F01L2305/00—Valve arrangements comprising rollers
    • 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
    • F01L2800/00—Methods of operation using a variable valve timing mechanism
    • F01L2800/10—Providing exhaust gas recirculation [EGR]
    • 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
    • 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-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

APARELHO PALRA UM MOTOR DE COMBUSTãO INTERNA. A presente invenção se refere a um aparelho para conseguir EGR interna (EGE - Exhaust Gas Recirculation - Recirculação de Gás de Exaustão) em um motor de combustão interna de quatro tempos que, para cada cilindro, possui pelo menos uma válvula de admissão e pelo menos uma válvula de exaustão (10) para controle da conexão entre câmaras de combustão no cilindro e um sistema de admissão e um sistema de exaustão, respectivamente. Um eixo de comando rotativo (18) que possui uma curva de excêntrico (de came) (22) é projetado para interagir com um membro perseguidor e possui uma primeira porção do lóbulo para geração da elevação normal de válvula de exaustão do motor. Em concordância com a presente invenção, o referido aparelho está caracterizado pelo fato de que o referido eixo de comando (18) está proporcionado com uma segunda porção de lóbulo, que possuí uma mensuração de altura além e acima de sua curva básica que cai abaixo da mensuração para folga de válvula de exaustão normal quando se traciona em carga baixa e acompanhando baixo desenvolvimento de calor no motor. Como um resultado da expansão térmica no mecanismo de válvula, a mensuração de altura excede a mensuração para folga de válvula de exaustão quando tracionando em carga alta e acompanhando alto desenvolvimento de calor no motor. A segunda porção de lóbulo está situada dentro de uma faixa angular de eixo de comando de cerca de 360 graus - 480 graus.
BRPI0419031A 2004-09-09 2004-09-09 aparelho para um motor de combustão interna BRPI0419031B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2004/001305 WO2006028410A1 (en) 2004-09-09 2004-09-09 Apparatus for an internal combustion engine

Publications (2)

Publication Number Publication Date
BRPI0419031A true BRPI0419031A (pt) 2007-12-11
BRPI0419031B1 BRPI0419031B1 (pt) 2015-10-27

Family

ID=36036630

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0419031A BRPI0419031B1 (pt) 2004-09-09 2004-09-09 aparelho para um motor de combustão interna

Country Status (7)

Country Link
US (1) US7559318B2 (pt)
EP (1) EP1792056B1 (pt)
JP (1) JP4523971B2 (pt)
CN (1) CN100519996C (pt)
AT (1) ATE520864T1 (pt)
BR (1) BRPI0419031B1 (pt)
WO (1) WO2006028410A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7284533B1 (en) * 2006-05-08 2007-10-23 Jacobs Vehicle Systems, Inc Method of operating an engine brake
ITTO20060563A1 (it) * 2006-07-28 2008-01-29 Eaton Srl Dispositivo di comando alzata per una valvola a stelo di motore a combustione interna o macchina operatrice
DE102006037396A1 (de) * 2006-08-10 2008-02-14 Daimler Ag Brennkraftmaschine
US9765658B2 (en) * 2011-03-02 2017-09-19 Delphi Technologies, Inc. Valve train system for an internal combustion engine
JP7368593B2 (ja) * 2019-08-05 2023-10-24 ジェイコブス ビークル システムズ、インコーポレイテッド 正の力および気筒休止の動作と副バルブ事象との組み合わせ

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968101U (ja) * 1982-10-30 1984-05-09 いすゞ自動車株式会社 内燃機関の弁作動機構
JP3470398B2 (ja) * 1994-07-13 2003-11-25 トヨタ自動車株式会社 内燃機関の動弁装置
JP2000257408A (ja) * 1999-03-10 2000-09-19 Toyota Motor Corp 内燃機関のカム機構
WO2000061930A1 (en) * 1999-04-14 2000-10-19 Diesel Engine Retarders, Inc. Exhaust and intake rocker arm assemblies for modifying valve lift and timing during positive power
SE523849C2 (sv) * 2001-10-11 2004-05-25 Volvo Lastvagnar Ab Avgasventilmekanism i förbränningsmotor
SE521189C2 (sv) * 2002-02-04 2003-10-07 Volvo Lastvagnar Ab Anordning för att tillföra EGR-gas
ITTO20020377A1 (it) 2002-05-07 2003-11-07 Iveco Motorenforschung Ag Sistema di attuazione valvole per sistema di ricircolo dei gas di scarico di motore a combustione interna.

Also Published As

Publication number Publication date
ATE520864T1 (de) 2011-09-15
JP4523971B2 (ja) 2010-08-11
EP1792056B1 (en) 2011-08-17
EP1792056A1 (en) 2007-06-06
US20080264392A1 (en) 2008-10-30
BRPI0419031B1 (pt) 2015-10-27
CN101014754A (zh) 2007-08-08
WO2006028410A1 (en) 2006-03-16
JP2008512602A (ja) 2008-04-24
CN100519996C (zh) 2009-07-29
US7559318B2 (en) 2009-07-14

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 27/10/2015, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 20A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2791 DE 02-07-2024 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.