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公开(公告)号：US11686270B2
公开(公告)日：2023-06-27
申请号：US15734001
申请日：2019-06-06
发明人： Christoffer Schmoll , Rainer Weiss , Michael Seiffert , Mark Day , Georg Hopp , Florian Sigel
CPC分类号： F02F3/0084 , F02F3/027 , F02F2003/0007 , F05C2201/0442 , F05C2201/0448
摘要： A cast piston for an internal combustion engine is made of an iron-based material and has windows in at least one side wall carrying a piston pin boss. The windows are asymmetric relative to one another on the side of the skirt walls.
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公开(公告)号：US11415076B2
公开(公告)日：2022-08-16
申请号：US16628433
申请日：2018-07-02
摘要： A method for producing a piston blank or a piston for an internal combustion engine, includes providing a thickened portion formed in at least one box wall in the direction of thickness approximately in the center thereof, which is at least partly flush with a cooling channel. A resulting piston blank or piston having these features can be made in a casting mold or forging die designed in a corresponding manner.
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公开(公告)号：US11131269B2
公开(公告)日：2021-09-28
申请号：US16464423
申请日：2017-08-17
发明人： Ralf Meske , Lukas Merz , Michael Kraemer , Christoffer Schmoll
摘要： A steel piston (10) for an internal combustion engine has a cooling channel and shaft surfaces (12, 14) with which the piston (10), in the installed state, abuts a cylinder bore or a cylinder liner on a pressure side and a counterpressure side, wherein one shaft surface (12) has a width which is 25-50% smaller than the other shaft surface (14).
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