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公开(公告)号：US09869269B2
公开(公告)日：2018-01-16
申请号：US14894902
申请日：2014-05-28
发明人： Rainer Scharp , Peter Kemnitz
摘要： A piston for an internal combustion engine may include a piston head and a piston skirt. The piston head may include a piston crown, an encircling fire land, an encircling ring belt having a plurality of ring grooves and an encircling cooling duct disposed radially inwards from the ring belt. The cooling duct may be open in an axial direction away from the fire land and may be at least partially closed via a closure element. The cooling duct may have a cooling duct base and a cooling duct ceiling. The closure element may be arranged on the piston head to define the cooling duct base in a position above a lowermost ring groove of the plurality of ring grooves.
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公开(公告)号：US09771891B2
公开(公告)日：2017-09-26
申请号：US14894338
申请日：2014-05-28
发明人： Rainer Scharp , Peter Kemnitz
摘要： A piston for an internal combustion engine may include a piston head and a piston skirt. The piston head may include a piston crown, a circumferential fire land, a circumferential ring belt having a plurality of ring grooves, and a circumferential cooling duct. The cooling duct may be open in a direction away from the fire land and may be at least partially closed by a closure element. The cooling duct may include a cooling duct bottom and a cooling duct ceiling. The piston skirt may have at least two piston bosses connected to one another via at least two running faces. At least one running face may have an inner face connected via a connecting land to an underside of the piston head.
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公开(公告)号：US09726223B2
公开(公告)日：2017-08-08
申请号：US14250463
申请日：2014-04-11
发明人： Peter Kemnitz , Klaus Keller
IPC分类号： F16C33/10 , F16C33/20 , F16J7/00 , F16C7/00 , F16C9/04 , B05D1/40 , B05D3/02 , B05D5/08 , B05D7/22 , F16C7/02
CPC分类号： F16C33/1045 , B05B1/26 , B05B3/10 , B05D1/40 , B05D3/0218 , B05D3/0254 , B05D5/08 , B05D7/22 , F16C7/00 , F16C7/023 , F16C9/04 , F16C17/02 , F16C23/041 , F16C33/103 , F16C33/1065 , F16C33/201 , F16C33/208 , F16C2223/42 , F16C2360/22 , F16J1/16 , F16J7/00 , Y10T29/49288 , Y10T74/2162
摘要： A method for producing a connecting rod for an internal combustion engine, having a small connecting rod eye for holding a piston pin and having a large connecting rod eye for holding a crank pin, wherein at least one connecting rod eye has at least one geometric deviation from a cylindrical inner contour. It is provided according to the invention that the at least one connecting rod eye is formed by creating a bore with a cylindrical inner contour, and coating the bore with a coating comprising a resin with solid lubricant particles embedded therein. The coating forms the at least one geometric deviation from the cylindrical inner contour of the at least one connecting rod eye.
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公开(公告)号：US20160115901A1
公开(公告)日：2016-04-28
申请号：US14894902
申请日：2014-05-28
发明人： Rainer Scharp , Peter Kemnitz
IPC分类号： F02F3/22
摘要： A piston for an internal combustion engine may include a piston head and a piston skirt. The piston head may include a piston crown, an encircling fire land, an encircling ring belt having a plurality of ring grooves and an encircling cooling duct disposed radially inwards from the ring belt. The cooling duct may be open in an axial direction away from the fire land and may be at least partially closed via a closure element. The cooling duct may have a cooling duct base and a cooling duct ceiling. The closure element may be arranged on the piston head to define the cooling duct base in a position above a lowermost ring groove of the plurality of ring grooves.
摘要翻译： 用于内燃机的活塞可以包括活塞头和活塞裙。 活塞头可以包括活塞冠，环绕的火地，具有多个环形槽的环绕环带和从环带径向向内设置的环绕冷却管道。 冷却管道可以在远离火场的轴向方向上敞开，并且可以经由封闭元件至少部分地封闭。 冷却管道可具有冷却管道底座和冷却管道顶部。 闭合元件可以布置在活塞头上，以将冷却管道基部限定在多个环形槽的最下环槽的上方。
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5.发明授权公开(公告)号：US09242317B2
公开(公告)日：2016-01-26
申请号：US14162950
申请日：2014-01-24
发明人： Rainer Scharp , Peter Kemnitz , Michael Ullrich
CPC分类号： B23P15/10 , F02F3/003 , F02F3/22 , Y10T29/49254
摘要： A method for producing piston for an internal combustion engine which has a piston head that has a circumferential cooling channel as well as a combustion bowl having a circumferential bowl wall that makes a transition into a piston crown by way of a bowl edge region. The combustion bowl is formed at least in part by a piston base body and the bowl wall is formed at least in part from an insert. The insert is connected with the piston base body by means of beam welding. A lower weld seam is configured in the bowl wall, which seam encloses an acute angle with the piston center axis (M) and ends in the lower half of the cooling channel. An upper weld seam runs from the cooling channel ceiling to the piston crown and is disposed centered or radially offset toward the outside, with reference to the clear width of the cooling channel.
摘要翻译： 一种用于制造内燃机的活塞的方法，该内燃机具有具有周向冷却通道的活塞头以及具有通过碗边缘区域向活塞冠过渡的周向碗壁的燃烧碗。 燃烧碗至少部分地由活塞基体形成，并且碗壁至少部分地从插入物形成。 插入件通过梁焊接与活塞基体连接。 在碗壁中配置了较低的焊缝，该接缝与活塞中心轴线（M）围成锐角，并在冷却通道的下半部结束。 上部焊缝从冷却通道天花板延伸到活塞顶部，相对于冷却通道的透明宽度，将其设置为朝向外部居中或径向偏移。
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公开(公告)号：US10174712B2
公开(公告)日：2019-01-08
申请号：US14894339
申请日：2014-05-28
发明人： Rainer Scharp , Peter Kemnitz
摘要： A piston for an internal combustion engine may include a piston crown and a piston skirt. The piston crown may include a piston head, a peripheral top land, a peripheral annular zone having a plurality of annular grooves and an annular closed cooling channel. The cooling channel may include a cooling channel base and a cooling channel cover. The cooling channel base may be arranged above the lower annular groove in relation to a region of combustion.
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