F - Mech Eng,Light,Heat,Weapons – 01 – L
Patent
F - Mech Eng,Light,Heat,Weapons
01
L
F01L 13/00 (2006.01)
Patent
CA 2556510
A valve train includes a primary rocker arm 50 which is oscillated about a primary oscillating center line L4 by an inlet cam 21, a secondary rocker arm 60 which transmits a valve drive force F1 to an inlet valve 14 and oscillates about a secondary oscillating center line L5, and a holder 30 which supports the primary and secondary rocker arms 50, 60 in such a manner that the primary and secondary oscillating center lines L4, L5 rotate together therewith. As the holder 30 approaches an oscillating position where a valve operating property is obtained where a maximum lift amount becomes maximum, an abutment position P1 where a cam lobe portion 21b abuts with a roller 53 of the primary rocker arm 50 approaches a specific straight line L10 which passes through a holder oscillating center line L3 and a rotational center line L2 of the inlet cam 21.
Une commande de soupape comprend un bras poussoir primaire (50) dont l~oscillation est provoquée autour d~une ligne primaire centrale d~oscillation (L4) par une came d~admission (21), un bras poussoir secondaire (60) qui transmet une force d~entraînement de soupape (F1) à une soupape d~admission (14) et qui oscille autour d~une ligne secondaire centrale d~oscillation (L5), et un maintien (30) qui supporte les bras poussoirs, primaire et secondaire, (50, 60) de manière telle que les lignes centrales d~oscillation, primaire et secondaire, (L4, L5) pivotent ensemble avec ceci. Lorsque le maintien (30) approche une position d~oscillation dans laquelle une propriété de fonctionnement de soupape est obtenue où une quantité maximale de levée devient maximale, une position d~appui (P1), dans laquelle une partie de lobe de came (21b) vient en appui sur un rouleau (53) du bras poussoir primaire (50), approche une ligne droite spécifique (L10) qui passe au travers d~une ligne centrale d~oscillation de maintien (L3) et d~une ligne centrale de pivotement (L2) de la came d~admission (21).
Goudreau Gage Dubuc
Honda Motor Co. Ltd.
LandOfFree
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