公开(公告)号：US06647861B1

公开(公告)日：2003-11-18

申请号：US10009414

申请日：2001-12-10

申请人： Detlef Jacobi ,  Rolf Wellandt

发明人： Detlef Jacobi ,  Rolf Wellandt

IPC分类号： F01B3108

CPC分类号： F02F3/22

摘要： The invention relates to a cooled piston for internal combustion engines. The inventive piston is provided with an annular cooling channel on the periphery of the piston head. Said cooling channel, at its end that is open towards the piston shaft, is closed by a correspondingly shaped wall part that is radially split at least once. The aim of the invention is to improve the supply of cooling oil in the cooling channel. To this end, the wall part at the end allocated to the split is provided with a respective recess and with an upturned S-bend section that serves to deflect the cooling oil jet.

摘要翻译： 本发明涉及一种用于内燃机的冷却活塞。 本发明的活塞在活塞头的周边上设置有环形冷却通道。 所述冷却通道在其朝向活塞轴开口的端部处被径向分开至少一次的相应形状的壁部件封闭。 本发明的目的是改善冷却通道中冷却油的供应。 为此，分配给分配件的端部处的壁部分设置有相应的凹部和用于偏转冷却油喷射的向上翻转的S形弯曲部分。