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1. WO2011065042 - 内燃機関の可変動弁装置

公開番号 WO/2011/065042
公開日 03.06.2011
国際出願番号 PCT/JP2010/059619
国際出願日 07.06.2010
IPC
F01L 13/00 2006.01
F機械工学;照明;加熱;武器;爆破
01機械または機関一般;機関設備一般;蒸気機関
L周期的に作動する機械または機関用弁
13逆運動,制動,始動,圧縮比の変更あるいはその他の特殊な操作を促進するための弁装置の変更
CPC
F01L 1/185
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1Valve-gear or valve arrangements, e.g. lift-valve gear
12Transmitting gear between valve drive and valve
18Rocking arms or levers
185Overhead end-pivot rocking arms
F01L 1/26
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1Valve-gear or valve arrangements, e.g. lift-valve gear
26characterised 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
F01L 13/0021
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
13Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
0015for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
0021by modification of rocker arm ratio
F01L 13/0036
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
13Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
0015for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
0036the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
F01L 2013/0052
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
13Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
0015for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
0036the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
0052with cams provided on an axially slidable sleeve
F01L 2305/00
出願人
  • トヨタ自動車株式会社 TOYOTA JIDOSHA KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • 都築 基浩 TSUZUKI, Motohiro [JP]/[JP] (UsOnly)
  • 嶋崎 忍 SHIMASAKI, Shinobu [JP]/[JP] (UsOnly)
  • 木戸岡 昭夫 KIDOOKA, Akio [JP]/[JP] (UsOnly)
  • 砂田 洋尚 SUNADA, Hirotaka [JP]/[JP] (UsOnly)
発明者
  • 都築 基浩 TSUZUKI, Motohiro
  • 嶋崎 忍 SHIMASAKI, Shinobu
  • 木戸岡 昭夫 KIDOOKA, Akio
  • 砂田 洋尚 SUNADA, Hirotaka
代理人
  • 高橋 英樹 TAKAHASHI, Hideki
優先権情報
PCT/JP2009/06985225.11.2009JP
公開言語 (言語コード) 日本語 (JA)
出願言語 (言語コード) 日本語 (JA)
指定国 (国コード)
発明の名称
(EN) VARIABLE VALVE DEVICE FOR INTERNAL COMBUSTION ENGINE
(FR) DISPOSITIF DE SOUPAPE VARIABLE POUR MOTEUR À COMBUSTION INTERNE
(JA) 内燃機関の可変動弁装置
要約
(EN)
Provided is a variable valve device for an internal combustion engine, which can smoothly switch the valve opening characteristics of valves of a plurality of cylinders as a whole using a rigid member on the basis of the operation of a single actuator while an increase of abrasion of a guide rail is suppressed and the number of delay mechanisms is reduced. The variable valve device is provided with a switching mechanism (32) for switching the valve opening characteristics of valves (26) of cylinders in first and second cylinder groups. The switching mechanism (32) is provided with link shafts (50a, 50b) as rigid members which move while engaging with the helical guide rail (54) in association with the operation of an electromagnetic solenoid (56). The switching mechanism (32) is provided with the delay mechanism (60) for delaying the movement of the second link shaft (50b), between the first and second cylinder groups, in the middle of the link shafts (50a, 50b), in the cylinder wherein the valve (26) is being lifted while the electromagnetic solenoid (56) is operated.
(FR)
L'invention porte sur un dispositif de soupape variable pour un moteur à combustion interne qui peut commuter de façon progressive les caractéristiques d'ouverture de soupape de l'ensemble des soupapes d'une pluralité de cylindres en utilisant un élément rigide sur la base du travail d'un actionneur unique, tandis qu'un accroissement de l'abrasion d'un rail de guidage est supprimé et que le nombre de mécanismes de retard est réduit. Le dispositif de soupape variable comporte un dispositif de commutation (32) destiné à commuter les caractéristiques d'ouverture de soupapes (26) de cylindres appartenant à des premier et second groupes de cylindres. Le mécanisme de commutation (32) comporte des arbres d'accouplement (50a, 50b) constituant des éléments rigides qui se déplacent tout en coopérant avec le rail de guidage hélicoïdal (54) en association avec l'action d'un solénoïde électromagnétique (56). Le mécanisme de commutation (32) comporte le mécanisme de retard (60) destiné à retarder le mouvement du second arbre d'accouplement (50b) entre les premier et second groupes de cylindres, au milieu des arbres d'accouplement (50a, 50b), dans le cylindre dans lequel la soupape (26) est soulevée pendant que le solénoïde électromagnétique (56) est activé.
(JA)
 ガイドレールの摩耗増加を抑制しつつ、かつ、ディレー機構の数を減らしつつ、単一のアクチュエータの作動に基づいて剛体部材を用いて複数の気筒のバルブの開弁特性を一括して円滑に切り換え可能とする内燃機関の可変動弁装置を提供する。第1および第2気筒群の各気筒のバルブ(26)の開弁特性を切り換える切換機構(32)を備える。切換機構(32)は、電磁ソレノイド(56)の作動に伴って螺旋状のガイドレール(54)に係合して変位する剛体部材として、リンクシャフト(50a、50b)を備える。切換機構(32)は、電磁ソレノイド(56)の作動時にバルブ(26)がリフト中となる気筒において、第2リンクシャフト(50b)の変位を遅延させるディレー機構(60)を、第1気筒群と第2気筒群との間において、リンクシャフト(50a、50b)の途中に備える。
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