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公开(公告)号:US20050028779A1
公开(公告)日:2005-02-10
申请号:US10495397
申请日:2002-08-13
申请人: Antonio Tomanik , Clayton Zabeu , Germano Almeida , Jose Lopes
发明人: Antonio Tomanik , Clayton Zabeu , Germano Almeida , Jose Lopes
CPC分类号: F16J9/20 , F02F3/00 , F05C2251/042 , F16J9/22
摘要: A piston for an internal combustion engine of the type presenting circumferential grooves (10), each groove (10) housing a respective piston ring (20), at least one first upper groove (10) presenting a profile having upper and lower lateral walls (11, 12) radially outwardly inclined towards the piston top by an angle of inclination such as to compensate, at least partially, the deformations to which the piston is submitted when in a critical higher load operational condition, in order to maximize the distribution of the seating contact between at least one of the upper and lower lateral walls (21, 22) of the piston ring (20) and an adjacent lateral wall (11, 12) of the groove (10), as well as to minimize the wear that determines the useful life of the groove (10).
摘要翻译: 一种用于内燃机的活塞,其具有周向槽(10),每个槽(10)容纳相应的活塞环(20),至少一个第一上槽(10)具有轮廓,所述轮廓具有上侧壁和下侧壁 径向向外朝向活塞顶部倾斜倾斜角度,以便至少部分地补偿在处于临界较高负载运行状态时活塞所提供的变形,以便最大化分配 活塞环(20)的上侧壁和下侧壁(21,22)中的至少一个与槽(10)的相邻侧壁(11,12)之间的座接触,并且使 决定槽(10)的使用寿命。