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公开(公告)号：EP2691629B1
公开(公告)日：2016-04-27
申请号：EP12718093.3
申请日：2012-03-27
CPC分类号： B23P15/10 , F02F3/16 , F02F3/22 , F02F2200/06 , F16J9/22 , Y10T29/49249
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2.发明公开
公开(公告)号：EP2691629A1
公开(公告)日：2014-02-05
申请号：EP12718093.3
申请日：2012-03-27
CPC分类号： B23P15/10 , F02F3/16 , F02F3/22 , F02F2200/06 , F16J9/22 , Y10T29/49249
摘要： In a process for producing a piston for an internal combustion engine, a groove is worked into a cast piston blank proceeding from a combustion chamber cavity (20) in a largely radial direction and then closed to form a cooling duct. A cast piston for an internal combustion engine has a closure which is fitted after the casting and the machining between the cooling duct and a combustion chamber cavity (20).
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3.发明授权
公开(公告)号：EP2285998B1
公开(公告)日：2012-01-18
申请号：EP09765797.7
申请日：2009-06-12
CPC分类号： C23C30/005 , C23C4/06 , C23C4/131 , F02F3/003 , F16J1/001 , F16J9/22 , Y10T29/49265
摘要： In a method for producing a piston (10) for an internal combustion engine, at least the region of the upper annular groove (12) is at least partially recessed, an adhesion promoter layer containing aluminium is then applied, a wear-resistant layer (16) is thermally sprayed onto said adhesion promoter layer and at least the upper annular groove (12) is at least partially formed in said layers. The invention also relates to a piston (10) for an internal combustion engine that comprises a base material (20), an adhesion promoter layer that contains aluminium and is applied to at least some regions of said material and a wear-resistant layer (16) that is thermally sprayed onto said adhesion promoter layer. At least the upper annular groove (12) is at least partially formed in said layers.
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4.发明公开
公开(公告)号：EP2285998A2
公开(公告)日：2011-02-23
申请号：EP09765797.7
申请日：2009-06-12
CPC分类号： C23C30/005 , C23C4/06 , C23C4/131 , F02F3/003 , F16J1/001 , F16J9/22 , Y10T29/49265
摘要： In a method for producing a piston (10) for an internal combustion engine, at least the region of the upper annular groove (12) is at least partially recessed, an adhesion promoter layer containing aluminium is then applied, a wear-resistant layer (16) is thermally sprayed onto said adhesion promoter layer and at least the upper annular groove (12) is at least partially formed in said layers. The invention also relates to a piston (10) for an internal combustion engine that comprises a base material (20), an adhesion promoter layer that contains aluminium and is applied to at least some regions of said material and a wear-resistant layer (16) that is thermally sprayed onto said adhesion promoter layer. At least the upper annular groove (12) is at least partially formed in said layers.
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