BRPI0600421A - sistema de descompressão de motor - Google Patents

sistema de descompressão de motor

Info

Publication number
BRPI0600421A
BRPI0600421A BRPI0600421-0A BRPI0600421A BRPI0600421A BR PI0600421 A BRPI0600421 A BR PI0600421A BR PI0600421 A BRPI0600421 A BR PI0600421A BR PI0600421 A BRPI0600421 A BR PI0600421A
Authority
BR
Brazil
Prior art keywords
decompression
region
cam shaft
decompression cam
engine
Prior art date
Application number
BRPI0600421-0A
Other languages
English (en)
Inventor
Shigeru Saito
Takashi Suzuki
Hiroshi Moriyama
Original Assignee
Honda Motor Co 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of BRPI0600421A publication Critical patent/BRPI0600421A/pt

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/004—Aiding engine start by using decompression means or variable valve actuation
    • 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
    • F01L1/024—Belt drive
    • 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
    • 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
    • F01L13/08—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/08—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio
    • F01L13/085—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio the valve-gear having an auxiliary cam protruding from the main cam profile
    • 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
    • F01L2301/00—Using particular materials
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/035—Centrifugal forces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N3/00—Other muscle-operated starting apparatus
    • F02N3/02—Other muscle-operated starting apparatus having pull-cords

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)

Abstract

"SISTEMA DE DESCOMPRESSãO DE MOTOR". A presente invenção refere-se a um sistema de descompressão de motor (40) que pode assegurar que uma altura de projeção de um came de descompressão (42a) de uma face de base de um came de operação de válvula (22a) seja relativamente grande em uma região rotacional de partida do motor, e manter um estado no qual a altura de projeção é diminuída em uma região rotacional de combustão completa do motor. O sistema de descompressão (40) inclui um eixo de came de descompressão (42) provido sobre um eixo de came de operação de válvula (22) ou um membro rotativo integralmente acoplado a este, o eixo de came de descompressão (42) sendo capaz de girar entre uma posição de operação (O) na qual um came de descompressão (42a) projeta-se acima de uma face de base de um came de operação de válvula (22a) para abrir ligeiramente as válvulas de motor (10, 11) durante um curso de compressão e uma posição de liberação (N) na qual o came de descompressão (42a) é recuado para permitir que as válvulas de motor (10, 11) fechem. Um mecanismo centrífugo (43) conectado ao eixo de came de descompressão (42) mantém o eixo de came de descompressão (42) em uma posição de operação (0) em uma região rotacional de partida, e gira o eixo de came de descompressão (42) para a posição de liberação (N) em uma região de funcionamento normal. O mecanismo centrífugo (43) está disposto de modo que, em uma região rotacional de combustão completa entre a região rotacional de partida e a região de funcionamento normal, o eixo de came de descompressão (42) é mantido em uma posição média (M) na qual a altura de projeção do came de descompressão (42a) é menor do que a altura de projeção na posição de operação (O).
BRPI0600421-0A 2005-02-21 2006-02-20 sistema de descompressão de motor BRPI0600421A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005044078A JP4490846B2 (ja) 2005-02-21 2005-02-21 エンジンのデコンプ装置

Publications (1)

Publication Number Publication Date
BRPI0600421A true BRPI0600421A (pt) 2006-10-24

Family

ID=36218569

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0600421-0A BRPI0600421A (pt) 2005-02-21 2006-02-20 sistema de descompressão de motor

Country Status (13)

Country Link
US (1) US7263960B2 (pt)
EP (1) EP1703123B1 (pt)
JP (1) JP4490846B2 (pt)
KR (1) KR100815311B1 (pt)
CN (2) CN2895747Y (pt)
AU (1) AU2006200386B2 (pt)
BR (1) BRPI0600421A (pt)
CA (1) CA2535165C (pt)
DE (1) DE602006010463D1 (pt)
ES (1) ES2335119T3 (pt)
MX (1) MXPA06001971A (pt)
TW (1) TWI279484B (pt)
ZA (1) ZA200601478B (pt)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4490846B2 (ja) 2005-02-21 2010-06-30 本田技研工業株式会社 エンジンのデコンプ装置
DE102007047759A1 (de) * 2007-09-28 2009-04-09 Alfred Kärcher Gmbh & Co. Kg Verbrennungsmotor
CN101896730A (zh) * 2007-12-19 2010-11-24 格雷索明尼苏达有限公司 用于液压推进车辆的力减小起动机构
JP5142804B2 (ja) * 2008-04-25 2013-02-13 本田技研工業株式会社 内燃機関の動弁装置
JP5312152B2 (ja) * 2009-03-31 2013-10-09 本田技研工業株式会社 エンジンの可変動弁装置
EP2479389B1 (en) * 2009-09-14 2014-07-23 Honda Motor Co., Ltd. Valve gear of internal combustion engine
TWI451031B (zh) * 2010-05-12 2014-09-01 Sanyang Industry Co Ltd Engine decompression mechanism
DE102013005807A1 (de) * 2013-04-04 2014-10-09 Andreas Stihl Ag & Co. Kg Verfahren zum Betrieb eines Verbrennungsmotors
JP2015224577A (ja) * 2014-05-27 2015-12-14 ヤマハ発動機株式会社 エンジン及び車両
CN105370338B (zh) * 2014-08-22 2018-09-25 牛刚学 内燃机减压装置的执行机构
JP6068424B2 (ja) * 2014-12-08 2017-01-25 富士重工業株式会社 デコンプ装置
TWI613364B (zh) * 2015-04-17 2018-02-01 三陽工業股份有限公司 啓動兼發電裝置控制引擎起動之方法
CN106401689B (zh) * 2015-07-27 2021-06-01 三阳工业股份有限公司 具双减压装置的引擎
JP2018053773A (ja) * 2016-09-28 2018-04-05 ヤマハ発動機株式会社 鞍乗型車両
WO2018102542A1 (en) 2016-11-30 2018-06-07 Cummins Inc. Compression release valvetrain design
CN112384683B (zh) * 2018-07-05 2022-08-02 本田技研工业株式会社 发动机的减压装置及发动机
TWM580123U (zh) * 2018-11-30 2019-07-01 光陽工業股份有限公司 內燃機的減壓裝置
CN116529476B (zh) 2020-12-03 2026-04-24 雅各布斯车辆系统公司 用于控制内燃机中的气门致动的旋转致动器系统
CN113153480B (zh) * 2021-06-08 2022-11-29 含山县大颉机械有限公司 一种发动机凸轮轴减压机构
CN117514407A (zh) * 2023-12-21 2024-02-06 巨能摩托车科技有限公司 一种发动机启动减压机构及摩托车

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JPH06248910A (ja) * 1993-02-23 1994-09-06 Kubota Corp エンジンのデコンプ装置付き動弁カム軸
JP2923842B2 (ja) * 1994-12-28 1999-07-26 本田技研工業株式会社 エンジンにおけるデコンプ装置
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JPH1193631A (ja) 1997-09-16 1999-04-06 Fuji Robin Ind Ltd 手動始動式４サイクルエンジン用デコンプ装置
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Also Published As

Publication number Publication date
AU2006200386B2 (en) 2009-07-16
TWI279484B (en) 2007-04-21
ES2335119T3 (es) 2010-03-22
JP4490846B2 (ja) 2010-06-30
MXPA06001971A (es) 2006-09-18
EP1703123A1 (en) 2006-09-20
EP1703123B1 (en) 2009-11-18
AU2006200386A1 (en) 2006-09-07
CN100507223C (zh) 2009-07-01
TW200632202A (en) 2006-09-16
US20060185638A1 (en) 2006-08-24
US7263960B2 (en) 2007-09-04
CA2535165A1 (en) 2006-08-21
CN1824927A (zh) 2006-08-30
KR20060093289A (ko) 2006-08-24
CA2535165C (en) 2010-01-12
JP2006226256A (ja) 2006-08-31
DE602006010463D1 (de) 2009-12-31
KR100815311B1 (ko) 2008-03-19
CN2895747Y (zh) 2007-05-02
ZA200601478B (en) 2007-11-28

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

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