公开(公告)号：WO2014004906A1

公开(公告)日：2014-01-03

申请号：PCT/US2013/048317

申请日：2013-06-27

Applicant: MAHLE INTERNATIONAL GMBH ,  WILDER, Montgomery, L.

Inventor： WILDER, Montgomery, L. ,  SEIFRIED, Matthias ,  EDEL, Helmut ,  MUELLER, Reiner

IPC: F02B11/00 ,  B23K20/12 ,  F02F3/00 ,  F02F3/22

CPC classification number: F02F3/0015 ,  B23K1/001 ,  B23K20/12 ,  B23K26/28 ,  B23K31/003 ,  B23K2201/003 ,  B23K2203/04 ,  B23K2203/06 ,  B23K2203/10 ,  F02B11/00 ,  F02F3/003 ,  F02F3/22

Abstract: Pistons and methods of making the same are disclosed. An exemplary piston assembly may include a piston crown and skirt. The crown may include a crown collar wall extending downward toward a free end of the crown collar wall. The skirt may include a pair of oppositely disposed pin bosses that each define piston pin bores configured to receive a piston pin for securing a connecting rod between the pin bosses. The skirt may further include a radially inner skirt mating surface abutted along a radially inner interface region with the radially inner crown mating surface, and a radially outer skirt mating surface abutted along a radially outer interface region with the radially outer crown mating surface such that a cooling gallery is substantially enclosed. The skirt may further include an inner collar wall extending upwards to the free end of the crown collar wall.

Abstract translation: 披露了活塞及其制作方法。 示例性活塞组件可以包括活塞冠和裙部。 冠部可以包括朝着冠部套环壁的自由端向下延伸的冠部衣领壁。 裙部可以包括一对相对设置的销凸台，每个销突出部限定活塞销孔，其构造成接收用于将连杆固定在销凸起之间的活塞销。 所述裙部还可包括径向内侧裙部配合表面，所述径向内部裙部配合表面沿着径向内部接口区域与所述径向内部冠部配合表面邻接，并且径向外部裙部配合表面沿径向外部接口区域与所述径向外部冠部配合表面邻接， 冷却库基本封闭。 裙部还可以包括向上延伸到冠部套环壁的自由端的内部衣领壁。