专利名称：Casting core for forming a cooling channel发明人：Helmut Kollotzek申请号：US12386640申请日：20090421
公开号：US20090261232A1公开日：20091022
专利附图：
摘要：A soluble casting core for forming a cooling channel in a piston has a formed-onpart for forming an oil supply opening and a formed-on part for forming an oil drainopening. In order to improve the mechanical strength of the piston, the oil supplyopening and the oil drain opening lie in a different pin boss support of the pin bosses of
the piston. A third formed-on part, which lies in the circumferential direction and isconfigured in oblong manner, is disposed between the first formed-on part and the endof the casting core, which part has a shape that narrows conically towards the end of thecasting core and forms a continuation of the cooling channel, which narrows conicallytowards the end of the cooling channel.
申请人：Helmut Kollotzek
地址：Mutlangen DE
国籍：DE
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