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1. 发明授权

US08813712B2 Piston for an internal combustion engine and method for its production 有权
标题翻译：活塞内燃机及其生产方法
公开(公告)号：US08813712B2
公开(公告)日：2014-08-26
申请号：US13066560
申请日：2011-04-18
申请人： Karlheinz Bing , Michael T. Lapp , Rainer Scharp , Michael Ullrich
发明人： Karlheinz Bing , Michael T. Lapp , Rainer Scharp , Michael Ullrich
IPC分类号： F02F3/16 , F02F3/26
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。

2. 发明申请

US20120160204A1 Piston for an internal combustion engine 有权
标题翻译：内燃机活塞
公开(公告)号：US20120160204A1
公开(公告)日：2012-06-28
申请号：US13066553
申请日：2011-04-18
申请人： Rainer Scharp , Michael Ullrich
发明人： Rainer Scharp , Michael Ullrich
IPC分类号： F02F3/26 , F02F3/16
CPC分类号： F02F3/003 , F02F3/22
摘要： The present invention relates to a piston (10, 110, 210) for an internal combustion engine, having a first piston component (11) and a second piston component (12), which jointly form a circumferential cooling channel (23) that is open toward the second piston component (12), whereby the first piston component (11) forms at least a part of a piston crown (13) as well as an outer circumferential wall (34) of the cooling channel, characterized in that the outer circumferential wall (34) of the cooling channel (23) has a circumferential projection (32) below the piston crown (13), which projection is provided with a circumferential guide surface (33) for coolant, directed radially inward.
摘要翻译：本发明涉及一种用于内燃机的活塞（10,110,210），其具有第一活塞部件（11）和第二活塞部件（12），所述第一活塞部件（11）和第二活塞部件（12）共同形成周向冷却通道（23）朝向第二活塞部件（12），由此第一活塞部件（11）形成活塞冠部（13）的至少一部分以及冷却通道的外周壁（34），其特征在于，外周冷却通道（23）的壁（34）在活塞顶部（13）下方具有周向突出部（32），该突出部设置有用于冷却剂的圆周引导表面（33），径向向内指向。

3. 发明授权

US08550052B2 Piston for an internal combustion engine 有权
标题翻译：内燃机活塞
公开(公告)号：US08550052B2
公开(公告)日：2013-10-08
申请号：US13205988
申请日：2011-08-09
申请人： Klaus Keller , Michael Ullrich , Rainer Scharp
发明人： Klaus Keller , Michael Ullrich , Rainer Scharp
IPC分类号： F02F3/16
CPC分类号： F02F3/22 , F02F3/003
摘要： A piston for an internal combustion engine has an upper part and a lower part. The upper part has a collar with a ring rib and the lower part has a wall and a contact part radially within the wall. When the upper part is connected with the lower part by friction welding, the face surfaces of the ring rib, the collar, the wall, and the contact part form friction-welding surfaces and form a cooling channel and a cooling cavity between them. To supply the cooling channel and the cooling cavity with cooling oil, radial bores are introduced into the ring rib, which bores connect the cooling channel with the cooling cavity. In this way, it is guaranteed that a sufficient residual amount of oil collects in the cooling channel and in the cooling cavity, which amount is constantly renewed, and leads to good cooling of the piston crown.
摘要翻译：内燃机的活塞具有上部和下部。上部具有带有环形肋的套环，下部具有壁和径向在壁内的接触部分。当上部通过摩擦焊接与下部连接时，环形肋，轴环，壁和接触部分的表面形成摩擦焊接表面，并在它们之间形成冷却通道和冷却腔。为了通过冷却油供应冷却通道和冷却腔，径向孔被引入到环形肋中，该孔将冷却通道与冷却腔连接。以这种方式，可以确保在冷却通道和冷却腔中充分剩余的油量聚集在该冷却槽中，该量不断更新，并且导致活塞冠的良好冷却。

4. 发明申请

US20120222644A1 Piston for an internal combustion engine and method for its production 有权
标题翻译：活塞内燃机及其生产方法
公开(公告)号：US20120222644A1
公开(公告)日：2012-09-06
申请号：US13066560
申请日：2011-04-18
申请人： Karlheinz Bing , Michael T. Lapp , Rainer Scharp , Michael Ullrich
发明人： Karlheinz Bing , Michael T. Lapp , Rainer Scharp , Michael Ullrich
IPC分类号： F02F3/16 , B23P15/10 , F02F3/26
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。

5. 发明授权

US08671905B2 Piston for an internal combustion engine and method for its production 有权
标题翻译：活塞内燃机及其生产方法
公开(公告)号：US08671905B2
公开(公告)日：2014-03-18
申请号：US13225663
申请日：2011-09-06
申请人： Rainer Scharp , Peter Kemnitz , Michael Ullrich
发明人： Rainer Scharp , Peter Kemnitz , Michael Ullrich
IPC分类号： F02F3/00 , F16J1/00
CPC分类号： B23P15/10 , F02F3/003 , F02F3/22 , Y10T29/49254
摘要： A piston for an internal combustion engine 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：用于内燃机的活塞具有活塞头，该活塞头具有周向冷却通道以及具有周向碗壁的燃烧碗，所述周向碗壁通过碗边缘区域转变成活塞冠。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。

6. 发明授权

US08661965B2 Piston for an internal combustion engine 有权
标题翻译：内燃机活塞
公开(公告)号：US08661965B2
公开(公告)日：2014-03-04
申请号：US13066553
申请日：2011-04-18
申请人： Rainer Scharp , Michael Ullrich
发明人： Rainer Scharp , Michael Ullrich
IPC分类号： F16J1/04 , F01B31/08 , F02F3/00
CPC分类号： F02F3/003 , F02F3/22
摘要： The present invention relates to a piston (10, 110, 210) for an internal combustion engine, having a first piston component (11) and a second piston component (12), which jointly form a circumferential cooling channel (23) that is open toward the second piston component (12), whereby the first piston component (11) forms at least a part of a piston crown (13) as well as an outer circumferential wall (34) of the cooling channel, characterized in that the outer circumferential wall (34) of the cooling channel (23) has a circumferential projection (32) below the piston crown (13), which projection is provided with a circumferential guide surface (33) for coolant, directed radially inward.
摘要翻译：本发明涉及一种用于内燃机的活塞（10,110,210），其具有第一活塞部件（11）和第二活塞部件（12），所述第一活塞部件（11）和第二活塞部件（12）共同形成周向冷却通道（23）朝向第二活塞部件（12），由此第一活塞部件（11）形成活塞冠部（13）的至少一部分以及冷却通道的外周壁（34），其特征在于，外周冷却通道（23）的壁（34）在活塞顶部（13）的下方具有周向突出部（32），该突起设置有用于冷却剂的圆周引导表面（33），径向向内指向。

7. 发明授权

US08616161B2 Piston for an internal combustion engine and method for its production 有权
标题翻译：活塞内燃机及其生产方法
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
IPC分类号： F01P1/04 , B23P15/10
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。

8. 发明授权

US08528206B2 Method for the production of a piston for an internal combustion engine 有权
标题翻译：一种用于生产用于内燃机的活塞的方法
公开(公告)号：US08528206B2
公开(公告)日：2013-09-10
申请号：US13066555
申请日：2011-04-18
申请人： Rainer Scharp , Gerhard Berr , Sascha-Oliver Boczek , Reiner Mueller
发明人： Rainer Scharp , Gerhard Berr , Sascha-Oliver Boczek , Reiner Mueller
IPC分类号： B22D19/00 , B23P11/00
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。

9. 发明授权

US08434400B2 Piston for an internal combustion engine 有权
标题翻译：内燃机活塞
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
CPC分类号： F02F3/22 , F02F3/003
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。

10. 发明授权

US08201537B2 Multi-part cooled piston for an internal combustion engine 失效
标题翻译：用于内燃机的多部分冷却活塞
公开(公告)号：US08201537B2
公开(公告)日：2012-06-19
申请号：US12308356
申请日：2007-06-08
申请人： Rainer Scharp
发明人： Rainer Scharp
IPC分类号： F02F3/00
CPC分类号： F02F3/0023 , F02F3/22
摘要： Proposed is a multi-part cooled piston (1) for an internal combustion engine, which piston (1) is composed of an upper piston part (2) and a lower piston part (6). The upper piston part (2) forms an inner annular cooling duct (11) with the lower piston part (6), which cooling duct (11) is covered by an upper region (31) of the lower piston part (6). The region (31) is of thin-walled design in such a way that it can be deformed in the manner of a plate spring. Simple and fast assembly of the upper piston part (2) on the lower piston part (6), and a fixed and secure screw connection between the two piston parts, result in that the upper piston part (2) is provided on its underside with a blind bore (26) which is arranged centrally and coaxially with respect to the piston axis (25) and has an internal thread (28), and in that the upper region (31) of the lower piston part (6) has a threaded bolt (29) which is arranged centrally and coaxially with respect to the piston axis (25), points upward and has an external thread (30), with the internal thread (28) matching the external thread (30), such that the upper piston part (2) can be screwed to the lower piston part (6) by means of the blind bore (26) and the threaded bolt.
摘要翻译：提出了一种用于内燃机的多部分冷却活塞（1），该活塞（1）由上活塞部分（2）和下活塞部分（6）组成。上活塞部件（2）与下活塞部件（6）形成内环形冷却管道（11），该冷却管道（11）被下活塞部件（6）的上部区域（31）覆盖。区域（31）的薄壁设计使得其可以以板簧的方式变形。上活塞部件（2）在下活塞部件（6）上的简单且快速的组装以及两个活塞部件之间的固定和固定的螺钉连接导致上活塞部件（2）在其下侧设置盲孔（26），其相对于所述活塞轴线（25）居中并同轴配置并具有内螺纹（28），并且所述下活塞部件（6）的上部区域（31）具有螺纹相对于活塞轴线（25）中心并同轴配置的螺栓（29）向上指向并具有外螺纹（30），内螺纹（28）与外螺纹（30）匹配，使得上活塞部分（2）可以通过盲孔（26）和螺栓螺钉连接到下活塞部分（6）。

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