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11.发明授权Piston for an internal combustion engine and cover ring for the cooling channel of the piston 失效用于内燃机的活塞和用于活塞冷却通道的盖环公开(公告)号：US07387100B2
公开(公告)日：2008-06-17
申请号：US11485569
申请日：2006-07-12
IPC分类号： F02F3/00
CPC分类号： F02F3/22
摘要： A piston for an internal combustion engine has a piston head and a piston skirt spaced apart from the piston head by a ring-shaped recess. The piston has at least one pin bore for accommodating a piston pin. A ring-shaped circumferential cooling channel for a coolant is provided in the piston head, which channel is closed off by a cover ring that consists of at least two segments. At least one region of the cover ring projects at least partially into the clear opening of the at least one pin bore, in such a manner that the cover ring simultaneously forms the retaining element for the piston pin.
摘要翻译： 用于内燃机的活塞具有通过环形凹部与活塞头间隔开的活塞头和活塞裙部。 活塞具有用于容纳活塞销的至少一个销孔。 用于冷却剂的环形周向冷却通道设置在活塞头中，该通道被由至少两个段组成的盖环封闭。 盖环的至少一个区域至少部分地突出到至少一个销孔的透明开口中，使得盖环同时形成用于活塞销的保持元件。
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公开(公告)号：US07302927B1
公开(公告)日：2007-12-04
申请号：US11451258
申请日：2006-06-12
申请人： Rainer Scharp
发明人： Rainer Scharp
IPC分类号： F02F31/00
CPC分类号： F02F3/22 , F02F3/0023
摘要： Proposed is a two-part piston 1 for an internal combustion engine, having an upper part 2 that has a pin 31 having an outside thread 32 on the underside of its piston crown 4, and having a lower part 3, which is connected with the upper part 2 by means of a nut 29 screwed onto the pin 31. The lower part 3 has an elastically resilient upper base part 25, onto which an expansion sleeve 26, elastic in the axial direction, is formed, which has an opening 27 having a collar 28, which is directed radially inward, into which the pin 31 is introduced. An elastic compression sleeve 30 is formed onto the nut 29, which sleeve rests against the collar 28. In this connection, the elastic resilience of the base part 25, the expansion sleeve 26, the compression sleeve 30, the pin 31, and the piston crown 4 has the result that the screw connection has a flat characteristic line despite a low compression height of the piston 1, thereby imparting great strength to the screw connection.
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公开(公告)号：US20070137605A1
公开(公告)日：2007-06-21
申请号：US11451258
申请日：2006-06-12
申请人： Rainer Scharp
发明人： Rainer Scharp
CPC分类号： F02F3/22 , F02F3/0023
摘要： Proposed is a two-part piston 1 for an internal combustion engine, having an upper part 2 that has a pin 31 having an outside thread 32 on the underside of its piston crown 4, and having a lower part 3, which is connected with the upper part 2 by means of a nut 29 screwed onto the pin 31. The lower part 3 has an elastically resilient upper base part 25, onto which an expansion sleeve 26, elastic in the axial direction, is formed, which has an opening 27 having a collar 28, which is directed radially inward, into which the pin 31 is introduced. An elastic compression sleeve 30 is formed onto the nut 29, which sleeve rests against the collar 28. In this connection, the elastic resilience of the base part 25, the expansion sleeve 26, the compression sleeve 30, the pin 31, and the piston crown 4 has the result that the screw connection has a flat characteristic line despite a low compression height of the piston 1, thereby imparting great strength to the screw connection.
摘要翻译： 提出了一种用于内燃机的两部分活塞1，其具有上部2，该上部部分2具有在其活塞冠4的下侧上具有外螺纹32的销31，并且具有下部3，该下部3与 上部部分2通过拧在销31上的螺母29。 下部3具有弹性弹性的上部基部25，在其上形成有沿轴向弹性的膨胀套筒26，该膨胀套筒26具有带径向向内定向的轴环28的开口27，销31 被介绍。 弹性压缩套筒30形成在螺母29上，该套筒靠在套环28上。 在这方面，基部25，膨胀套筒26，压缩套筒30，销31和活塞顶部4的弹性回弹性的结果是螺纹连接具有平坦的特性线，尽管压缩高度 活塞1，从而对螺钉连接赋予很大的强度。
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14.发明授权Method for drilling shaker bores into the cooling channel of a single-part piston 有权将振动筛孔钻入单件活塞的冷却通道的方法公开(公告)号：US06772846B1
公开(公告)日：2004-08-10
申请号：US10384008
申请日：2003-03-07
申请人： Rainer Scharp
发明人： Rainer Scharp
IPC分类号： F02F322
CPC分类号： B23B35/00 , F02F3/22 , Y10T29/49265 , Y10T29/49996
摘要： A method for drilling shaker bores into a cooling channel of a single-part piston, in which gudgeon-pin bosses each having a gudgeon-pin bore and piston shaft elements are molded onto the piston head via a tie-up substantially extending fully around in the form of a ring. Passage bores are drilled into the tie-up coaxially with the shaker bores to be drilled into the cooling channel, and the shaker bore is drilled into the underside of the piston head with a drilling bit inserted in the respective passage bore.
摘要翻译： 一种将振动筛孔钻入单件活塞的冷却通道中的方法，其中每个具有舵头孔和活塞轴元件的舵头销凸起通过基本上完全延伸的结合模制在活塞头上 戒指的形式。 将通道孔与与待钻入冷却通道的振动器孔同轴地钻入，并且将钻孔钻入插入到相应通道孔中的钻头钻入活塞头的下侧。
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公开(公告)号：US08813712B2
公开(公告)日：2014-08-26
申请号：US13066560
申请日：2011-04-18
CPC分类号： F02F3/00 , B23K26/28 , B23K2101/003 , B23P15/10 , F02F3/003 , F02F3/22 , F02F2200/00 , Y10T29/49249 , Y10T29/49252
摘要： A piston for an internal combustion engine has a piston head, a piston skirt, and a circumferential recess configured between the piston head and the piston skirt. The piston has a piston base body and a piston ring element. The piston base body has a crown region of a combustion bowl and the piston skirt. The piston ring element has a piston crown, a wall region of the combustion bowl, a circumferential top land, and a circumferential ring belt with ring grooves. The piston ring element has a circumferential cooling channel between the wall region of the combustion bowl and the ring belt, closed with a closure element. The piston base body and the piston ring element have a circumferential joining seam in the region of the combustion bowl, by way of which seam they are non-releasably connected with one another.
摘要翻译： 用于内燃机的活塞具有活塞头，活塞裙和构造在活塞头和活塞裙之间的周向凹部。 活塞具有活塞基体和活塞环元件。 活塞基体具有燃烧碗的顶部区域和活塞裙部。 活塞环元件具有活塞冠，燃烧碗的壁区域，周向顶部平台和具有环形凹槽的圆周环形带。 活塞环元件在燃烧碗的壁区域和环形带之间具有周边冷却通道，用闭合元件封闭。 活塞基体和活塞环元件在燃烧碗的区域中具有周向接合缝，通过它们不可释放地彼此连接。
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公开(公告)号：US08616161B2
公开(公告)日：2013-12-31
申请号：US13066549
申请日：2011-04-18
申请人： Rainer Scharp , Klaus Keller
发明人： Rainer Scharp , Klaus Keller
CPC分类号： B23P15/10 , B21K1/185 , F02F3/22 , F02F2003/0061 , Y10T29/49243 , Y10T29/49249 , Y10T29/49252
摘要： A method for the production of a piston for an internal combustion engine, having a circumferential cooling channel, whereby a blank of a lower piston part is forged, and a blank of an upper piston part is produced, the blanks are pre-machined and joined together to form a piston blank, which is finished to produce a piston. At least one depression or recess is formed into the blank of the lower piston part during the forging process. In the finished piston, the depression forms an opening for a coolant inflow and/or a coolant outflow, or the recess forms an excavation groove for a pin securing ring, respectively.
摘要翻译： 一种生产用于内燃机的活塞的方法，其具有周向冷却通道，由此锻造下活塞部件的坯件，并且生产上活塞部件的坯件，坯料被预加工并连接 一起形成活塞坯件，其被完成以产生活塞。 在锻造过程中至少有一个凹陷或凹陷形成下活塞部分的坯料。 在完成的活塞中，凹陷形成用于冷却剂流入和/或冷却剂流出的开口，或者凹部分别形成针固定环的挖掘槽。
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17.发明授权公开(公告)号：US08528206B2
公开(公告)日：2013-09-10
申请号：US13066555
申请日：2011-04-18
CPC分类号： B21K1/185
摘要： A method for the production of a piston (1) made of steel, for an internal combustion engine, in which the upper piston part (3) is produced using the forging method, and the lower piston part (4) is produced using the forging or casting method, and they are subsequently welded to one another. To simplify the production method and make it cheaper, the upper piston part is forged using the method of semi-hot forming, to finish it to such an extent that further processing of the combustion bowl and of the upper cooling channel regions can be eliminated.
摘要翻译： 一种用于生产由用锻造方法制造上活塞部件（3）的内燃机的钢制活塞（1）和下活塞部件（4）的方法，使用锻造 或铸造方法，并且它们随后彼此焊接。 为了简化生产方法并使其更便宜，使用半热成型方法锻造上活塞部分，使其完成到能够消除燃烧碗和上部冷却通道区域的进一步加工的程度。
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公开(公告)号：US08434400B2
公开(公告)日：2013-05-07
申请号：US12460196
申请日：2009-07-15
申请人： Peter Kemnitz , Carmen Klusch , Rainer Scharp
发明人： Peter Kemnitz , Carmen Klusch , Rainer Scharp
IPC分类号： F01B31/08
摘要： A piston for an internal combustion engine has a lower piston part and an upper piston part that are connected with one another by friction welding and form an outer circumferential cooling channel. The upper piston part has a circumferential ring belt provided with ring grooves, the inner wall of which delimits the circumferential outer cooling channel. An outer circumferential friction-weld seam is provided below the ring belt, the width of which seam is less than or equal to the wall thickness between the groove root of the ring grooves and the inner wall of the ring belt.
摘要翻译： 用于内燃机的活塞具有通过摩擦焊接彼此连接并形成外周冷却通道的下活塞部和上活塞部。 上活塞部具有设置有环槽的周向环带，其内壁限定圆周外冷却通道。 在环带下方设置有外周摩擦焊缝，其宽度小于或等于环槽的槽根与环带的内壁之间的壁厚。
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公开(公告)号：US20120260868A1
公开(公告)日：2012-10-18
申请号：US13408023
申请日：2012-02-29
申请人： Rainer SCHARP
发明人： Rainer SCHARP
IPC分类号： F02F3/16
摘要： A piston for an internal combustion engine has a piston head and a piston skirt. The piston head has a circumferential ring belt and a circumferential cooling channel. The piston skirt has a working surface assigned to its major thrust side and to its minor thrust side. A bore that proceeds from the cooling channel is provided, which ends in the working surface assigned to the major thrust side, and is disposed at an incline, in such a manner that the bore exit encloses an acute angle (α) with the center axis (M) of the piston. An opening is formed in the working surface, and a deflection surface inclined relative to the working surface is provided between the bore and the bore exit. The working surface assigned to the major thrust side has a depression which forms at least one oil capture region above the opening.
摘要翻译： 用于内燃机的活塞具有活塞头和活塞裙。 活塞头具有周向环带和周向冷却通道。 活塞裙部具有分配到其主推力侧和其小推力侧的工作表面。 提供从冷却通道进入的孔，其以分配给主推力侧的工作表面结束并且以倾斜的方式设置，使得孔出口与中心轴线成锐角（α） （M）。 在工作面上形成开口，在孔和孔出口之间设有相对工作面倾斜的偏转面。 分配给主推力侧的工作表面具有在开口上方形成至少一个油捕获区域的凹陷。
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公开(公告)号：US20120240881A1
公开(公告)日：2012-09-27
申请号：US13489825
申请日：2012-06-06
摘要： A multi-part piston for an internal combustion engine has an upper piston part having a piston crown, and a lower piston part having pin boss supports and pin bosses connected with them. The upper piston part and lower piston part each have an inner and an outer support element, which delimit an outer circumferential cooling channel. The inner support elements delimit a cavity that is open toward the pin bosses, and the cavity is provided with a separate cooling oil collector that has at least one cooling oil opening.
摘要翻译： 用于内燃机的多部件活塞具有具有活塞顶部的上活塞部分和具有销凸台支撑件的下活塞部件和与其连接的销凸台。 上活塞部分和下活塞部分均具有限定外周冷却通道的内部和外部支撑元件。 内部支撑元件限定朝向销凸起敞开的空腔，并且空腔设置有具有至少一个冷却油开口的单独的冷却油收集器。
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