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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
Applicant: Karlheinz Bing , Michael T. Lapp , Rainer Scharp , Michael Ullrich
Inventor： Karlheinz Bing , Michael T. Lapp , Rainer Scharp , Michael Ullrich
CPC classification number: F02F3/00 , B23K26/28 , B23K2101/003 , B23P15/10 , F02F3/003 , F02F3/22 , F02F2200/00 , Y10T29/49249 , Y10T29/49252
Abstract: 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.
Abstract translation: 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
Applicant: Rainer Scharp , Klaus Keller
Inventor： Rainer Scharp , Klaus Keller
CPC classification number: B23P15/10 , B21K1/185 , F02F3/22 , F02F2003/0061 , Y10T29/49243 , Y10T29/49249 , Y10T29/49252
Abstract: 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.
Abstract translation: 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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3.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
Applicant: Rainer Scharp , Gerhard Berr , Sascha-Oliver Boczek , Reiner Mueller
Inventor： Rainer Scharp , Gerhard Berr , Sascha-Oliver Boczek , Reiner Mueller
CPC classification number: B21K1/185
Abstract: 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.
Abstract translation: 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
Applicant: Peter Kemnitz , Carmen Klusch , Rainer Scharp
Inventor： Peter Kemnitz , Carmen Klusch , Rainer Scharp
IPC: F01B31/08
Abstract: 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.
Abstract translation: 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：US08201537B2
公开(公告)日：2012-06-19
申请号：US12308356
申请日：2007-06-08
Applicant: Rainer Scharp
Inventor： Rainer Scharp
IPC: F02F3/00
CPC classification number: F02F3/0023 , F02F3/22
Abstract: 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.
Abstract translation: 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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Patent Agency Ranking
公开(公告)号：US08087395B2
公开(公告)日：2012-01-03
申请号：US12381839
申请日：2009-03-17
Applicant: Rainer Scharp , Reiner Mueller , Helmut Edel , Bernd Graf , Stefan Kohnle , Dieter Held , Matthias Seifried
Inventor： Rainer Scharp , Reiner Mueller , Helmut Edel , Bernd Graf , Stefan Kohnle , Dieter Held , Matthias Seifried
CPC classification number: F02F3/22 , F02F2003/0061
Abstract: A multi-part piston for an internal combustion engine has an upper piston part and a lower piston part. The upper piston part and the lower piston part each have an inner and an outer support element, which elements delimit an outer circumferential cooling channel and an inner cooling chamber, whose cooling chamber bottom has an opening. The opening is closed off with a separate closure element, which has at least one cooling oil opening.
Abstract translation: 用于内燃机的多部件活塞具有上活塞部分和下活塞部分。 上活塞部分和下活塞部分各具有内和外支撑元件，该元件限定外周冷却通道和内冷却室，其冷却室底部具有开口。 该开口用独立的封闭元件封闭，该闭合元件具有至少一个冷却油开口。
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公开(公告)号：US08042512B2
公开(公告)日：2011-10-25
申请号：US12308238
申请日：2007-06-08
Applicant: Rainer Scharp
Inventor： Rainer Scharp
IPC: F02F3/18
CPC classification number: F02F3/22 , F02F3/0084 , F02F2003/0061 , F02F2200/06 , F05C2201/0448 , Y10T29/49249 , Y10T29/49252
Abstract: Proposed is a piston (1) for an internal combustion engine having a closed annular duct (4) which is arranged close to the piston head (5) and radially at the outside, which annular duct (4) has, at the piston head side, an annular opening (21) which, in section, has the shape of a trapezium with limbs which taper conically in the direction away from the piston head, and which is closed off by an annular closure element (3) which, in section, has the same trapezium shape as the opening (21), with the closure element (3) being fastened in the opening (21) by means of friction welding.
Abstract translation: 提出了一种用于内燃机的活塞（1），其具有封闭的环形管道（4），所述闭合的环形管道（4）在活塞头侧靠近活塞头（5）并且径向地设置在环形管道（4）的外部 ，环形开口（21），其在截面中具有梯形形状，其具有在远离活塞头的方向上锥形成锥形的四肢，并且由环形封闭元件（3）封闭，所述环形封闭元件（3） 具有与开口（21）相同的梯形形状，封闭元件（3）通过摩擦焊接紧固在开口（21）中。
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8.发明申请Multi-part piston for an internal combustion engine and method for its production 审中-公开用于内燃机的多部件活塞及其生产方法公开(公告)号：US20100108001A1
公开(公告)日：2010-05-06
申请号：US12589167
申请日：2009-10-19
Applicant: Rainer Scharp , Klaus Keller , Volker Weisse , Sascha-Oliver Boczek
Inventor： Rainer Scharp , Klaus Keller , Volker Weisse , Sascha-Oliver Boczek
Abstract: 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. In a method for producing a piston, the upper and lower piston parts are manufactured, the cooling oil collector is inserted into one of the upper and lower piston parts in a region of the cavity, and the upper and lower piston parts are connected together at their support elements.
Abstract translation: 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。 在活塞的制造方法中，制造上下活塞部，在空腔的区域中将冷却油收集器插入上下活塞部中的一方，将上下活塞部分连接在一起 他们的支持元素。
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公开(公告)号：US20100107998A1
公开(公告)日：2010-05-06
申请号：US12381839
申请日：2009-03-17
Applicant: Rainer Scharp , Reiner Mueller , Helmut Edel , Bernd Graf , Stefan Kohnle , Dieter Held , Matthias Seifried
Inventor： Rainer Scharp , Reiner Mueller , Helmut Edel , Bernd Graf , Stefan Kohnle , Dieter Held , Matthias Seifried
CPC classification number: F02F3/22 , F02F2003/0061
Abstract: A multi-part piston for an internal combustion engine has an upper piston part and a lower piston part. The upper piston part and the lower piston part each have an inner and an outer support element, which elements delimit an outer circumferential cooling channel and an inner cooling chamber, whose cooling chamber bottom has an opening. The opening is closed off with a separate closure element, which has at least one cooling oil opening
Abstract translation: 用于内燃机的多部件活塞具有上活塞部分和下活塞部分。 上活塞部分和下活塞部分各具有内和外支撑元件，该元件限定外周冷却通道和内冷却室，其冷却室底部具有开口。 该开口用独立的封闭元件封闭，该闭合元件具有至少一个冷却油开口
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公开(公告)号：US20100050862A1
公开(公告)日：2010-03-04
申请号：US12460196
申请日：2009-07-15
Applicant: Peter Kemnitz , Carmen Klusch , Rainer Scharp
Inventor： Peter Kemnitz , Carmen Klusch , Rainer Scharp
IPC: F16J1/00
Abstract: 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.
Abstract translation: 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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