发明名称 |
METHOD FOR FIXING AN ANNULAR ELEMENT ON A PISTON FOR AN INTERNAL COMBUSTION ENGINE |
摘要 |
The invention relates to a method for fixing an annular element (6) on a piston (1) for an internal combustion engine. According to said method: the annular element (6) is screwed onto the piston base body (4) by means of a thread (5) that is on the radial outer surface of part (23) of the piston base (9); a continuous groove (24) that is open at the top is formed in the piston base (9) in the region of the thread (5); the groove (24) is filled with solder material (26); the piston (1) is heated until the solder material (26) liquefies and flows through the thread pitch of the thread (5); the piston (1) is subsequently cooled. This produces a secure screw connection between the piston base body (4) and the annular element (6). In addition, the cooling channel (14) is sealed against the high-pressure combustion gases that act on the piston base (9). |
申请公布号 |
WO2009079989(A3) |
申请公布日期 |
2009.09.24 |
申请号 |
WO2008DE02074 |
申请日期 |
2008.12.10 |
申请人 |
MAHLE INTERNATIONAL GMBH;SCHARP, RAINER |
发明人 |
SCHARP, RAINER |
分类号 |
F02F3/00;B23K1/08;B23P15/10 |
主分类号 |
F02F3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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