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1. WO2020071038 - VALVE TIMING CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Publication Number WO/2020/071038
Publication Date 09.04.2020
International Application No. PCT/JP2019/034698
International Filing Date 04.09.2019
IPC
F01L 1/352 2006.01
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
34characterised by the provision of means for changing the timing of the valves without changing the duration of opening
344changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
352using bevel or epicyclic gear
F01L 1/356 2006.01
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
34characterised by the provision of means for changing the timing of the valves without changing the duration of opening
344changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
356making the angular relationship oscillate
CPC
F01L 1/352
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
34characterised by the provision of means for changing the timing of the valves without changing the duration of opening ; and without affecting the magnitude of the valve lift
344changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
352using bevel or epicyclic gear
F01L 1/356
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
34characterised by the provision of means for changing the timing of the valves without changing the duration of opening ; and without affecting the magnitude of the valve lift
344changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
356making the angular relationship oscillate ; , e.g. non-homokinetic drive
Applicants
  • 日立オートモティブシステムズ株式会社 HITACHI AUTOMOTIVE SYSTEMS, LTD. [JP]/[JP]
Inventors
  • 佐藤 秀平 SATO, Shuhei
  • 山中 淳史 YAMANAKA, Atsushi
  • 山田 吉彦 YAMADA, Yoshihiko
Agents
  • 小林 博通 KOBAYASHI, Hiromichi
  • 富岡 潔 TOMIOKA, Kiyoshi
  • 高嶋 一彰 TAKASHIMA, Kazuaki
Priority Data
2018-18872304.10.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) VALVE TIMING CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
(FR) DISPOSITIF DE COMMANDE DE CALAGE DE DISTRIBUTION POUR MOTEUR À COMBUSTION INTERNE
(JA) 内燃機関のバルブタイミング制御装置
Abstract
(EN)
A holding plate 8 affixed to a sprocket 1 has a circular arc-shaped stopper protrusion 8b extending in a circumferential direction. Both circumferential ends of the stopper protrusion have sloped first and second outer surfaces 8d, 8e. A stopper groove 11g is provided between a first protrusion 45 and a second protrusion 46 of an adapter 11 affixed to a driven member 9. Both circumferential ends of the stopper groove have sloped first and second inner surfaces 11h, 11i making relative contact with the first and second outer surfaces. At least the first inner surface 11h is formed such that an outer end 11k is located further toward the ignition advance Ad side in a relative rotational direction than a first straight line N passing through the rotational center axis P of the adapter and an inner end 11j. As a result of these configurations, the concentration of stress caused by an impact load on the adapter can be reduced.
(FR)
Dans la présente invention, une plaque de maintien (8) fixée à un pignon (1) présente une saillie d'arrêt en forme d'arc circulaire (8) s'étendant dans une direction circonférentielle. Les deux extrémités circonférentielles de la saillie d'arrêt ont des première et seconde surfaces externes inclinées (8d, 8e). Une rainure d'arrêt (11g) est prévue entre une première saillie (45) et une seconde saillie (46) d'un adaptateur (11) fixé à un élément entraîné (9). Les deux extrémités circonférentielles de la rainure d'arrêt ont des première et seconde surfaces internes inclinées (11h, 11i) établissant un contact relatif avec les première et seconde surfaces externes. Au moins la première surface interne (11h) est formée de telle sorte qu'une extrémité externe (11k) soit située davantage vers le côté Ad d'avance à l'allumage dans une direction de rotation relative que vers une première ligne droite N passant par l'axe central de rotation P de l'adaptateur et une extrémité interne (11j). En conséquence de ces configurations, la concentration de contrainte provoquée par une charge d'impact sur l'adaptateur peut être réduite.
(JA)
スプロケット1に固定された保持プレート8は、円周方向に沿った円弧状のストッパ凸部8bを有し、このストッパ凸部の周方向両端部には、傾斜状の第1、第2外側面8d、8eを有している。従動部材9に固定されたアダプタ11の第1突出部45と第2突出部46の間にはストッパ凹溝11gを有し、このストッパ凹溝の円周方向の両端部には、第1、第2外側面に相対的に当接する傾斜状の第1、第2内側面11h、11iを有している。少なくとも第1内側面11hは、外側端部11kがアダプタの回転軸心Pと内側端部11jとを通る第1直線Nより相対回転方向の進角方向Ad側に位置している。これらの構成によって、アダプタに対する衝突荷重による応力集中の低減化を図ることができる。
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