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公开(公告)号：US10682686B2
公开(公告)日：2020-06-16
申请号：US15743785
申请日：2016-02-26
发明人： Jun Kui Yang , Kwan Ho Ryu , Jeong Keon Lee , Lee Cheol Ji , Sang Min Lee
摘要： The present invention relates to an eco-mold apparatus for manufacturing a piston, a mold apparatus for manufacturing a piston, and a piston manufacturing method, which mold each part of a piston while decreasing the weight of the piston, and the apparatus may comprise: a first eco-mold part which may move forward or backward in a first direction to shape a portion of an eco-part of a piston; a second eco-mold part which may shape-match with the first eco-mold part to mold another portion of the eco-part of the piston; and a piston pickup part which picks up the piston over the second eco-mold part, so that the piston pickup part can separate the piston from the second eco-mold part.
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公开(公告)号：US10100777B2
公开(公告)日：2018-10-16
申请号：US15164201
申请日：2016-05-25
发明人： In Cheol Yoo , Woo Seok Shim , Sang Hyuk Jun , Jeong Keon Lee , Kwan Ho Ryu , Jun Kui Yang
摘要： Provided is a piston for an internal combustion engine, the piston including a body having a piston pin boss for inserting a piston pin thereinto, and a skirt corresponding to a cylinder wall, and a cooling channel provided in the body to allow a refrigerant for cooling the body, to flow therethrough, and having a ring shape including a first channel provided from a refrigerant inlet to a refrigerant outlet along a first outer circumferential direction of the body, and a second channel provided from the refrigerant inlet to the refrigerant outlet along a second outer circumferential direction of the body.
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公开(公告)号：US10060327B2
公开(公告)日：2018-08-28
申请号：US15162809
申请日：2016-05-24
发明人： Jang Ik Park , Sang Hyuk Jun , Jeong Keon Lee , Kwan Ho Ryu , Jun Kui Yang
CPC分类号： F01P3/10 , B22C9/105 , F02F3/22 , F02F2200/08
摘要： Provided is a piston for an internal combustion engine, the piston including a body having a piston pin boss for inserting a piston pin thereinto, and a skirt corresponding to a cylinder wall, and a cooling channel provided in the body to allow a refrigerant for cooling the body, to flow therethrough, and having a ring shape including a first channel provided from a refrigerant inlet to a refrigerant outlet along a first outer circumferential direction of the body, and a second channel provided from the refrigerant inlet to the refrigerant outlet along a second outer circumferential direction of the body.
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