公开(公告)号：US20130092024A1

公开(公告)日：2013-04-18

申请号：US13490203

申请日：2012-06-06

Applicant: Klaus Keller ,  Rainer Scharp

Inventor： Klaus Keller ,  Rainer Scharp

IPC: B21K1/18 ,  F16J1/00 ,  B23P15/10 ,  B21J13/02

CPC classification number: B21K1/18 ,  B21J5/022 ,  B21J13/02 ,  B23P15/10 ,  F02F3/00 ,  F02F2200/04 ,  F16J1/005 ,  Y10T29/49249

Abstract: A method and apparatus for simultaneously producing a first piston part and a second piston part via a forging device may include an upper die, at least one intermediate die, and a lower die. A first billet may be placed between the upper die and the intermediate die, and a second billet may be placed between the intermediate die and the lower die. The upper die and the lower die may be configured to be moved toward each other, whereby the first piston part is forged from the first billet and the second piston part is forged at the same time from the second billet. The upper die and the lower die may then be configured to be moved apart, and the piston parts may be removed.

Abstract translation: 通过锻造装置同时制造第一活塞部件和第二活塞部件的方法和装置可以包括上模具，至少一个中间模具和下模具。 第一坯料可以放置在上模和中间模之间，并且第二坯料可以放置在中间模和下模之间。 上模和下模可以被构造成彼此相对移动，由此第一活塞部分从第一坯料锻造，并且第二活塞部分与第二坯料同时锻造。 然后可以将上模具和下模具构造成分开移动，并且可以移除活塞部件。

公开(公告)号：US20130000483A1

公开(公告)日：2013-01-03

申请号：US13174943

申请日：2011-07-01

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F01B31/08

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：US20120145112A1

公开(公告)日：2012-06-14

申请号：US13066549

申请日：2011-04-18

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F02F3/16 ,  B23P15/10

CPC classification number: B23P15/10 ,  B21K1/185 ,  F02F3/22 ,  F02F2003/0061 ,  Y10T29/49243 ,  Y10T29/49249 ,  Y10T29/49252

Abstract: The present invention relates to a method for the production of a piston (10, 110) for an internal combustion engine, having a circumferential cooling channel (24), whereby a blank (11′, 111′) of a lower piston part (11, 111) is forged, and a blank (12′) of an upper piston part (12) is produced, the blanks (11′, 111′, 12′) are pre-machined and joined together to form a piston blank (10′, 110′), which is finished to produce a piston (10, 110). According to the invention, it is provided that at least one depression (25) or at least one recess (135), respectively, is formed into the blank (11′, 111′) of the lower piston part (11, 111) during the forging process, whereby in the finished piston (10, 110), the at least one depression (25) forms an opening (33) for a coolant inflow and/or a coolant outflow, or the at least one recess (135) forms an excavation groove (136) for a pin securing ring, respectively.

Abstract translation: 本发明涉及一种用于制造内燃机的活塞（10,110）的方法，所述活塞具有周向冷却通道（24），由此将下活塞部件（11）的坯件（11'，111'） ，111）被锻造，并且产生上活塞部件（12）的坯件（12'），坯件（11'，111'，12'）被预加工并连接在一起以形成活塞坯件 '，110'），其被完成以产生活塞（10,110）。 根据本发明，提供了在下活塞部分（11,111）的坯件（11'，111'）中分别形成有至少一个凹部（25）或至少一个凹部（135） 锻造过程，由此在成品活塞（10,110）中，所述至少一个凹部（25）形成用于冷却剂流入和/或冷却剂流出的开口（33），或者所述至少一个凹部（135）形成 分别用于销固定环的挖掘槽（136）。

公开(公告)号：US08127738B2

公开(公告)日：2012-03-06

申请号：US12381838

申请日：2009-03-17

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F02F3/22 ,  F02F3/00

CPC classification number: F02F3/003 ,  F02F3/22

Abstract: A multi-part piston for an internal combustion engine has an upper piston part with a piston crown, and a lower piston part, each of the piston parts having an inner and an outer support element that delimit an outer circumferential cooling channel and an inner cooling chamber. The cooling chamber bottom has an opening. A holding element is disposed in the inner cooling chamber and extends from the underside of the piston crown vertically toward the opening. The holding element carries a closure element that closes the opening and has at least one cooling oil opening.

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下活塞部分，每个活塞部分具有限定外周冷却通道的内外支撑元件和内冷却 房间。 冷却室底部有一个开口。 保持元件设置在内部冷却室中并且从活塞顶部的下侧垂直地朝向开口延伸。 保持元件承载关闭开口并具有至少一个冷却油开口的封闭元件。

公开(公告)号：US20120037111A1

公开(公告)日：2012-02-16

申请号：US13066550

申请日：2011-04-18

Applicant: Rainer Scharp ,  Klaus Keller

Inventor： Rainer Scharp ,  Klaus Keller

IPC: F02F3/00 ,  B23P15/10 ,  F02F3/26

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）回火或沉淀硬化坯件，（d）摩擦焊接接合 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：US20100147250A1

公开(公告)日：2010-06-17

申请号：US12592091

申请日：2009-11-19

Applicant: Sascha-Oliver Boczek ,  Rainer Scharp

Inventor： Sascha-Oliver Boczek ,  Rainer Scharp

IPC: F02F3/16 ,  F01B31/08

CPC classification number: F02F3/22

Abstract: A piston for an internal combustion engine has a piston crown and a cooling channel disposed close to the piston crown and radially on the outside. The cooling channel is delimited on the underside by ribs uniformly distributed over the circumference, with openings lying between them. The openings of the cooling channel are closed off with two metal cover sheets attached to its underside, in the shape of a half circle. There is at least one oil inflow opening and at least one oil outflow opening in or between the cover sheets.

Abstract translation: 用于内燃机的活塞具有活塞顶部和靠近活塞顶部设置并且径向地设置在外部的冷却通道。 冷却通道在下侧通过均匀分布在圆周上的肋限定，开口位于它们之间。 冷却通道的开口用两个固定在其下侧的金属盖板封闭，半圆形。 至少一个油流入开口和盖板之中或之间的至少一个油流出开口。

公开(公告)号：US07600465B2

公开(公告)日：2009-10-13

申请号：US11791898

申请日：2005-11-28

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F02F3/18 ,  F16J1/00

CPC classification number: F02F3/0023 ,  F02F3/22

Abstract: Disclosed is a piston (1) for a combustion engine, comprising an annular grooved reinforcement (4) that is screwed onto an externally threaded (13) collar (12) located in the piston head area via an internal thread (19) which is mounted on the inside of the grooved reinforcement (4). The grooved reinforcement (4) blocks a recess (14) so as to form an annular, closed cooling duct (21). In order to provide the screwed connection between the collar (12) and the grooved reinforcement (4) with sufficient stability, a radially outward area of the collar (12) is equipped with a bend that points towards the hub. Furthermore, the collar (12) is embodied in an elastically resilient manner so as to bend in the direction of the piston head when the grooved reinforcement is screwed in, thus prestressing the screwed connection.

Abstract translation: 公开了一种用于内燃发动机的活塞（1），其包括环形槽加强件（4），该环形槽加强件（4）经由内螺纹（19）旋拧到位于活塞头区域中的外螺纹（13）轴环（12） 在槽加强件（4）的内侧。 带槽加强件（4）阻挡凹部（14），以便形成环形封闭的冷却导管（21）。 为了以足够的稳定性在轴环（12）和带槽加强件（4）之间提供螺纹连接，轴环（12）的径向向外的区域配备有指向毂的弯曲部。 此外，套环（12）以弹性弹性的方式被实施，以便当带槽的加强件被拧入时沿着活塞头的方向弯曲，从而对螺纹连接进行预应力。

公开(公告)号：US20080121204A1

公开(公告)日：2008-05-29

申请号：US11791777

申请日：2005-11-28

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F02F3/16

CPC classification number: F02F3/22 ,  F02F3/0023

Abstract: Disclosed is a multipart, cooled piston for a combustion engine, comprising, in a radially outward direction, an annular cooling duct located on the bottom side that faces away from the piston head. The cooling duct is closed by a cooling duct cover which is embodied as a ring. The cooling duct cover is provided with a tongue in the radially inner zone. The tongue engages into a recess that is molded into the bottom piston part, thus preventing the cooling duct cover from rotating relative to the piston during assembly as well as during operation.

Abstract translation: 公开了一种用于内燃机的多部分冷却活塞，其包括在径向向外的方向上的位于底面上的背离活塞头的环形冷却管道。 冷却管道通过体现为环的冷却管道盖封闭。 冷却管道盖在径向内部区域中设置有舌部。 舌部接合到模制到底部活塞部分中的凹部中，从而防止冷却管道盖在组装期间以及在操作期间相对于活塞旋转。

公开(公告)号：US20070289568A1

公开(公告)日：2007-12-20

申请号：US11792659

申请日：2005-11-28

Applicant: Rainer Scharp ,  Bernd Mahr

Inventor： Rainer Scharp ,  Bernd Mahr

IPC: F02F3/00

CPC classification number: F02F3/0015 ,  F02F3/003 ,  F16J1/005

Abstract: The invention relates to a two-piece piston (1) for an internal combustion engine, comprising a piston upper piece (2) and a piston lower piece (2). A cylindrical moulding (24) is arranged on the underside of the piston upper piece (2), facing away from the piston crown, lying coaxial to the piston axis (15), with two radial outward-facing hooked projections (27) on the end thereof facing away from the piston crown. The piston lower piece (6) has an opening (16) on the piston crown side, in which the cylindrical moulding (24) with the projections (27) is introduced and rotated on assembly of the piston upper piece (2) on the piston lower piece (6), such that the projections (27) engage behind the edge of the opening (16).

Abstract translation: 本发明涉及一种用于内燃机的两件式活塞（1），其包括活塞上部件（2）和活塞下部件（2）。 活塞上部件（2）的下侧布置有圆柱形模制件（24），其背离与活塞轴线（15）同轴的活塞顶盖，在其上具有两个径向向外的钩形突起（27） 其端部远离活塞冠。 活塞下部件（6）在活塞顶侧具有开口（16），其中具有突起（27）的圆柱形模制件（24）在活塞上部件（2）组装在活塞上时被引入并转动 下部件（6），使得突起（27）接合在开口（16）的边缘后面。

公开(公告)号：US07308850B2

公开(公告)日：2007-12-18

申请号：US10570102

申请日：2004-09-01

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F01B31/08 ,  F16J1/00

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 combustion 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内燃机的铝活塞，其具有由NiResist制成的环形元件，放置在活塞头的径向外边缘区域中，并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。