公开(公告)号：US20080121205A1

公开(公告)日：2008-05-29

申请号：US11791806

申请日：2005-11-28

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F02F3/26

CPC classification number: F02F3/22 ,  F02F3/003 ,  F02F3/26

Abstract: Disclosed is a piston (1) for a combustion engine comprising a closed ring element (6) which is disposed in the radially outer peripheral area of the piston head (5) and is joined to the basic piston member (4) by means of a high-temperature resistant adhesive. The basic member (4) is made of forged aluminum while the ring element (6) is made of Ni-resist. A closed, annular cooling duct (15) that comprises holes for delivering and discharging cooling oil is placed between the basic member (4) and the ring element (6), resulting in a piston (1) that has a simple design, can be produced at low cost, and can be subjected to great thermal loads.

Abstract translation: 公开了一种用于内燃机的活塞（1），其包括设置在活塞头（5）的径向外周区域中的闭环元件（6），并通过 耐高温粘合剂。 基本构件（4）由锻造铝制成，而环形元件（6）由耐电镀材料制成。 包括用于输送和排出冷却油的孔的封闭的环形冷却管道（15）被放置在基本构件（4）和环形元件（6）之间，产生具有简单设计的活塞（1），可以是 以低成本生产，并可承受很大的热负荷。

公开(公告)号：US20080121102A1

公开(公告)日：2008-05-29

申请号：US11791807

申请日：2005-11-28

Applicant: Rainer Scharp ,  Stefan Fischer

Inventor： Rainer Scharp ,  Stefan Fischer

IPC: F16J1/04

CPC classification number: F02B23/0696 ,  F02F3/0023 ,  F02F3/22 ,  F02F3/26 ,  Y02T10/125

Abstract: Disclosed is a two-part piston (1) for a combustion engine comprising a combustion chamber (16) in the piston head (13). The piston (1) is composed of a basic member (5) and a top part (6) that is screwed to the basic member (5). In order for the combustion pressure to act substantially upon the basic member (5), which is provided with great mechanical stability and load-bearing capacity relative to the pressure prevailing in the combustion chamber, the bottom part of the combustion chamber (16) is molded into the basic member (5), the top part (6) is configured in an essentially annular manner, and the top part (6) enlarges the combustion chamber (16) at the piston head end while delimiting the same in a radially outward direction similar to a collar (19).

Abstract translation: 公开了一种用于内燃机的两部分活塞（1），其包括在活塞头（13）中的燃烧室（16）。 活塞（1）由基本构件（5）和与基座构件（5）螺纹连接的顶部（6）构成。 为了使燃烧压力基本上作用在基本构件（5）上，该基础构件（5）相对于燃烧室中的压力具有很大的机械稳定性和承载能力，燃烧室（16）的底部是 模制到基本构件（5）中，顶部（​​6）构造成基本环形的方式，并且顶部部分（6）在活塞头部端部放大燃烧室（16），同时将其径向向外 方向类似于衣领（19）。

公开(公告)号：US20060243131A1

公开(公告)日：2006-11-02

申请号：US10570102

申请日：2004-09-01

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F01B31/08

CPC classification number: F02F3/22 ,  F02B23/0654 ,  F02B23/0672 ,  F02F3/0023 ,  F16J1/006 ,  F16J1/09

Abstract: The invention relates to an aluminum piston for a combusion engine having a ring element, which is made of NiResist, is placed in the radially outer edge area of the piston head, and which, together with the base body, forms an annular cooling channel. The ring element is fastened to the base body of the piston via a screwed connection.

Abstract translation: 本发明涉及一种用于混合发动机的铝活塞，其具有由NiResist制成的环形元件，其放置在活塞头的径向外边缘区域中，并且与基体一起形成环形冷却通道。 环形元件通过螺纹连接紧固到活塞的基体。

公开(公告)号：US08973484B2

公开(公告)日：2015-03-10

申请号：US13174943

申请日：2011-07-01

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F01B31/08 ,  F16J1/04 ,  F02F3/22 ,  F02F3/00

CPC classification number: F02F3/22 ,  F02F3/003

Abstract: An exemplary piston assembly and method of making the same are disclosed. An exemplary piston assembly may include a piston crown and skirt. The crown may include radially inner and outer crown mating surfaces, and the crown may define at least in part a cooling gallery extending about a periphery of the crown. The skirt may further include an inner collar wall disposed radially inwardly of a radially inner interface region and extending upwards to a free end. The collar wall may generally enclose the radially inner interface region from the central region.

Abstract translation: 公开了一种示例性活塞组件及其制造方法。 示例性活塞组件可以包括活塞冠和裙部。 冠部可以包括径向内部和外部冠部配合表面，并且冠部可以至少部分地限定围绕冠部的周边延伸的冷却库。 裙部还可以包括设置在径向向内的内部界面区域并向上延伸到自由端的内部轴环壁。 套环壁通常可以从中心区域包围径向内部界面区域。

公开(公告)号：US08943687B2

公开(公告)日：2015-02-03

申请号：US13066559

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

IPC: B23P15/10 ,  B23K20/18 ,  B22D19/00 ,  B23P11/00 ,  B21K1/18 ,  F02F3/00

CPC classification number: B23P15/10 ,  B21K1/185 ,  F02F3/003 ,  F02F3/0084 ,  F02F3/22 ,  F02F2003/0061 ,  F02F2200/04 ,  F02F2200/06 ,  F05C2201/0448 ,  F05C2253/24 ,  Y10T29/49249 ,  Y10T29/49252 ,  Y10T29/49254 ,  Y10T29/49256 ,  Y10T29/49261 ,  Y10T29/49265

Abstract: A method for the production of a piston made of steel, for an internal combustion engine, in which the upper piston part is produced using the forging method, and the lower piston part 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 hot forming and of cold calibration, 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: 一种用于内燃机制造活塞的方法，其中使用锻造方法制造上活塞部分，并且下活塞部分使用锻造或铸造方法制造，并且随后被焊接 彼此。 为了简化制造方法并使其更便宜，使用热成型和冷校准的方法锻造上活塞部分，以使其完成到使得燃烧碗和上部冷却通道区域的进一步加工可以 消除了

公开(公告)号：US08671905B2

公开(公告)日：2014-03-18

申请号：US13225663

申请日：2011-09-06

Applicant: Rainer Scharp ,  Peter Kemnitz ,  Michael Ullrich

Inventor： Rainer Scharp ,  Peter Kemnitz ,  Michael Ullrich

IPC: F02F3/00 ,  F16J1/00

CPC classification number: B23P15/10 ,  F02F3/003 ,  F02F3/22 ,  Y10T29/49254

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08661965B2

公开(公告)日：2014-03-04

申请号：US13066553

申请日：2011-04-18

Applicant: Rainer Scharp ,  Michael Ullrich

Inventor： Rainer Scharp ,  Michael Ullrich

IPC: F16J1/04 ,  F01B31/08 ,  F02F3/00

CPC classification number: F02F3/003 ,  F02F3/22

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08635982B2

公开(公告)日：2014-01-28

申请号：US13066550

申请日：2011-04-18

Applicant: Rainer Scharp ,  Klaus Keller

Inventor： Rainer Scharp ,  Klaus Keller

IPC: F02F3/00

CPC classification number: C21D9/0068 ,  B23K20/129 ,  B23K2101/003 ,  C21D9/50 ,  F02F3/003 ,  F02F3/0092 ,  F02F3/22 ,  F02F2003/0061 ,  Y10T29/49252 ,  Y10T29/49254

Abstract: A method for producing a piston for an internal combustion engine, composed of first and second piston components, has the following steps: (a) providing a blank of the first piston component composed of a tempered or precipitation-hardened steel, having at least one joining surface, (b) providing a blank of the second piston component composed of a tempered or precipitation-hardened steel, having at least one joining surface, (c) tempering or precipitation-hardening the blanks, (d) friction-welding the joining surfaces of the blanks to produce a piston blank, with the formation of at least one friction-welding seam and a heat influence zone in the region of the at least one friction-welding seam, (e) annealing or low-stress annealing of the piston blank, thereby obtaining the heat influence zone(s), (f) re-machining and/or finishing the piston blank to produce a piston. A piston so produced is also provided.

Abstract translation: 一种由第一和第二活塞部件构成的用于内燃机的活塞的制造方法，具有以下步骤：（a）提供由回火或析出硬化钢构成的第一活塞部件的坯料，该坯料具有至少一个 （b）提供由回火或沉淀硬化的钢组成的具有至少一个接合表面的第二活塞部件的坯件，（c）回火或沉淀硬化坯料，（d）摩擦焊接接合面 坯料的表面以产生活塞坯件，在至少一个摩擦焊缝的区域中形成至少一个摩擦焊缝和热影响区，（e）退火或低应力退火 活塞坯料，从而获得热影响区域;（f）对活塞坯料进行再加工和/或精加工以产生活塞。 还提供如此生产的活塞。

公开(公告)号：US08631573B2

公开(公告)日：2014-01-21

申请号：US13136590

申请日：2011-08-04

Applicant: Rainer Scharp ,  Matthias Seifried

Inventor： Rainer Scharp ,  Matthias Seifried

IPC: F02F3/22 ,  B23P15/10

CPC classification number: F02F3/16 ,  B23P15/10 ,  F02F3/003 ,  F02F3/22 ,  F02F2003/0061

Abstract: A method for the production of a piston has the following method steps: (a) providing a blank of a piston base body, having an outer joining surface, an inner joining surface and a circumferential lower cooling channel part that runs between the two joining surfaces, (b) providing a blank of a piston ring element, having an outer joining surface, an inner joining surface and a circumferential upper cooling channel part that runs between the two joining surfaces, (c) forming a circumferential widened region on at least one joining surface, the widened region extending toward the related cooling channel part, (d) connecting the blank of the piston base body with the blank of the piston ring element by way of their joining surfaces, by friction welding, to produce a piston blank, and (e) machining the piston blank further and/or finish-machining it to produce a piston.

Abstract translation: 活塞的制造方法具有以下的工序：（a）设置活塞基体的坯料，其具有外接合面，内接合面和在两接合面之间延伸的周向下冷却通道部 ，（b）提供活塞环元件的坯件，其具有外连接表面，内接合表面和在两个接合表面之间延伸的周向上冷却通道部分，（c）在至少一个上形成周向加宽区域 所述加宽区域朝着相关的冷却通道部分延伸，（d）通过摩擦焊接，通过其接合表面将活塞基体的坯件与活塞环元件的坯料连接，以产生活塞坯料， 和（e）进一步加工活塞坯件和/或对其进行精加工以产生活塞。

公开(公告)号：US08544442B2

公开(公告)日：2013-10-01

申请号：US13408034

申请日：2012-02-29

Applicant: Rainer Scharp ,  Klaus Keller ,  Volker Weisse

Inventor： Rainer Scharp ,  Klaus Keller ,  Volker Weisse

IPC: B23P15/10 ,  F02F3/22

CPC classification number: F02F3/003 ,  B23P15/10 ,  F02F3/22

Abstract: A method for the production of a multi-part piston for an internal combustion engine involves producing an upper piston part having a piston crown as well as an inner and an outer support element, and producing a lower piston part having a skirt and having pin boss supports and pin bosses connected with the pin boss supports, and an inner and an outer support element. A separate cooling oil collector having at least one cooling oil opening is inserted into the upper piston part or the lower piston part. The upper piston part and the lower piston part are connected in such a manner that the inner and outer support elements of the upper and lower piston parts, delimit an outer circumferential cooling channel and a cavity that is open toward the pin bosses and provided with the cooling oil collector.

Abstract translation: 一种用于生产用于内燃机的多部件活塞的方法包括制造具有活塞顶部以及内外支撑元件的上活塞部件，并且制造具有裙部的下活塞部件，并具有销凸台 支撑件和与销凸起支撑件连接的销凸起，以及内部和外部支撑元件。 具有至少一个冷却油开口的单独的冷却油收集器被插入到上活塞部分或下活塞部分中。 上活塞部分和下活塞部分以这样的方式连接，使得上活塞部分和下活塞部分的内和外支撑元件限定外周冷却通道和朝向销凸起敞开的空腔， 冷却油收集器。