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    • 5. 发明公开
    • ARBRE A CAMES TUBULAIRE FORMANT FILTRE A HUILE CENTRIFUGE
    • ARBRE A CAMES TUBULAIRE FORMANT FILTRE HUILE CENTRIFUGE
    • EP3094835A1
    • 2016-11-23
    • EP15704041.1
    • 2015-01-13
    • Renault S.A.S.
    • JUSTET, Frédéric
    • F01M9/10F01M9/00
    • F01M9/105F01L2001/0475F01L2810/02F01M9/00F01M2013/0422
    • The invention proposes a tubular camshaft (10) for a motor vehicle combustion engine, which camshaft comprises at least an oil-circulation bore (12) of a determined first diameter (D
      12 ), supplied with oil (H) at a first end (14) via a coaxial supply orifice (16) and extending substantially along the length of said shaft (10), and which comprises a plurality of radial ducts (18) which are distributed along the length of the shaft (10), which pass through a tubular wall (20) of the shaft (10), and which place the inside of the bore (12) in communication with the outside of the shaft (10), characterized in that the bore (12) is closed at a second end (26) the opposite end to the first end (14) and in that each radial duct (18) comprises, inside the bore (12), an inlet end (28) which is arranged at a second diameter (D
      28 ) smaller than the first diameter (D
      12 ) so as, as the shaft (10) rotates, to form a spillway able to allow oil (H) to be discharged by centrifugal spinning and impurities (24) to be held within the bore (12).
    • 本发明提出一种用于机动车辆内燃机的管状凸轮轴(10),该凸轮轴至少包括具有确定的第一直径(D 12)的油循环孔(12),该第一直径(D 12)在第一端( (10)的长度方向上延伸并且包括多个径向导管(18),所述多个径向导管(18)沿着所述轴(10)的长度分布,所述多个径向导管(18)穿过同轴供应孔口 所述轴(10)的管状壁(20)并且使所述孔(12)的内部与所述轴(10)的外部连通,其特征在于,所述孔(12)在所述轴 (26)与第一端(14)相反的一端,并且每个径向管(18)在孔(12)内包括入口端(28),该入口端以小于第二直径(D 28) 当轴(10)旋转时,第一直径(D 12)形成溢流通道,该溢流溢流通道允许油(H)通过离心旋转和杂质排出 (24)保持在孔(12)内。