公开(公告)号：US07628134B2

公开(公告)日：2009-12-08

申请号：US10574750

申请日：2004-10-04

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F02F3/22

CPC classification number: F02F3/22

Abstract: The invention relates to a piston for an internal combustion engine comprising an annular cooling channel embodied in the edge area of the piston head and closed on a rod side with a cover consisting of two semicircular half-shells which are oriented with the internal sides thereof towards the piston and provided with a circular groove for arranging the half-shells on a projection embodied on the external side of the piston. The half-shells are provided on the abutting surfaces thereof with rest connections for easily connecting the half-shells to each other.

Abstract translation: 本发明涉及一种用于内燃机的活塞，其包括在活塞头的边缘区域中实施的环形冷却通道，并且在杆侧封闭，盖子由两个半圆形半壳组成，两个半圆形半壳的内侧朝向 活塞并设置有用于将半壳布置在体积在活塞的外侧上的突起上的圆形槽。 半壳在其邻接表面上设置有用于容易地将半壳彼此连接的静止连接。

公开(公告)号：US20080134876A1

公开(公告)日：2008-06-12

申请号：US11791898

申请日：2005-11-28

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F16J15/16

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：US20070209614A1

公开(公告)日：2007-09-13

申请号：US11578876

申请日：2005-04-19

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F01P1/02

CPC classification number: F02F3/22

Abstract: The invention relates to a cooling channel covering for a piston of an internal combustion engine in the form of a spring metal sheet which is measured in such a manner that wear and tear in the region of the surface is prevented, in such a manner that a peripheral gap is produced between the radial, external front side of the spring metal sheet and the radial, external limit of the step-shaped recess.

Abstract translation: 本发明涉及一种用于弹簧金属片形式的内燃机活塞的冷却通道盖，该弹簧金属片的形式是以这样一种方式测量的，即，防止表面区域的磨损和磨损， 在弹簧金属片的径向外侧前侧和阶梯状凹部的径向外部极限之间产生周向间隙。

公开(公告)号：US06487773B2

公开(公告)日：2002-12-03

申请号：US09816026

申请日：2001-03-23

Applicant: Rainer Scharp ,  Jochen Ernst Danner

Inventor： Rainer Scharp ,  Jochen Ernst Danner

IPC: B23P1500

CPC classification number: B23P15/10 ,  F02F3/22 ,  F02F2003/0007 ,  F02F2200/04 ,  Y10T29/49249 ,  Y10T29/49252 ,  Y10T29/49265 ,  Y10T29/49298 ,  Y10T29/49995

Abstract: The invention concerns a method of producing a one-part piston which, in the region of the piston ring zone, has a closed cooling duct and a recess between the piston ring zone and the box-shaped piston body. The method comprises the following steps: A piston blank is produced by a forging process and the annular recess is produced by machining so that an upper part of the piston skirt remains connected to a radially inner region below the piston crown. The axial height of the recess corresponds at least to the axial height of the cooling duct. The cooling duct, which is open at the bottom, is produced by machining and hub bores are formed and the outer contour of the piston is finished. The cooling duct, which is open at the bottom, is closed by a two-part cover ring.

Abstract translation: 本发明涉及一种制造单活塞的方法，该活塞在活塞环区域具有封闭的冷却管道和活塞环区域与箱形活塞体之间的凹陷。 该方法包括以下步骤：通过锻造工艺生产活塞坯料，并且通过机械加工产生环形凹槽，使得活塞裙部的上部保持连接到活塞顶部下方的径向内部区域。 凹部的轴向高度至少对应于冷却管道的轴向高度。 底部开口的冷却管通过机械加工形成，并且形成轮毂孔，活塞的外轮廓完成。 在底部敞开的冷却管道由两部分的盖环封闭。

公开(公告)号：US09656320B2

公开(公告)日：2017-05-23

申请号：US13490203

申请日：2012-06-06

Applicant: Klaus Keller ,  Rainer Scharp

Inventor： Klaus Keller ,  Rainer Scharp

IPC: B21K1/18 ,  B23P15/10 ,  B21J13/02 ,  F16J1/00 ,  B21J5/02 ,  F02F3/00

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.

公开(公告)号：US08453618B2

公开(公告)日：2013-06-04

申请号：US13325319

申请日：2011-12-14

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F02F3/00 ,  F02F3/22

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闭合元件。

公开(公告)号：US08371261B2

公开(公告)日：2013-02-12

申请号：US12587960

申请日：2009-10-15

Applicant: Rainer Scharp ,  Klaus Keller ,  Volker Weisse

Inventor： Rainer Scharp ,  Klaus Keller ,  Volker Weisse

IPC: F02F3/00 ,  F02F3/22

CPC classification number: F02F3/003 ,  B23P15/10 ,  F02F3/22 ,  F02F2003/0061 ,  Y10T29/49252

Abstract: A multi-part piston for an internal combustion engine has an upper piston part having a piston crown, and a lower piston part. The lower piston part has pin boss supports and pin bosses connected with them and 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. The inner support elements delimit a cavity that is open toward the pin bosses. The cavity has a separate cooling oil collector that has at least one cooling oil opening. The piston is produced by manufacturing the upper piston part and lower piston part, inserting the cooling oil collector into the upper piston part or lower piston part, and joining the upper and lower piston parts together by friction welding.

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件和下活塞部件。 下活塞部分具有销凸台支撑件和与其连接的销凸台，并且上活塞部分和下活塞部件各自具有内支撑元件和外支撑元件，该元件限定外周冷却通道。 内部支撑元件限定朝向销凸起敞开的空腔。 空腔具有独立的冷却油收集器，其具有至少一个冷却油开口。 活塞通过制造上活塞部和下活塞部，通过将冷却油收集器插入上活塞部或下活塞部，通过摩擦焊接将上下活塞部接合在一起而制造。

公开(公告)号：US20120222305A1

公开(公告)日：2012-09-06

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

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: What is proposed is 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 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: 提出了一种生产用于内燃机的钢制活塞（1）的方法，其中使用锻造方法制造上活塞部件（3），下活塞部件（4）是 使用锻造或铸造方法制造，并且随后彼此焊接。 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：US20120160204A1

公开(公告)日：2012-06-28

申请号：US13066553

申请日：2011-04-18

Applicant: Rainer Scharp ,  Michael Ullrich

Inventor： Rainer Scharp ,  Michael Ullrich

IPC: F02F3/26 ,  F02F3/16

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）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。

公开(公告)号：US08161934B2

公开(公告)日：2012-04-24

申请号：US12381842

申请日：2009-03-17

Applicant: Rainer Scharp ,  Klaus Keller ,  Volker Weisse

Inventor： Rainer Scharp ,  Klaus Keller ,  Volker Weisse

IPC: F02F3/00 ,  F02F3/22

CPC classification number: F02F3/003 ,  B23P15/10 ,  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 with pin boss supports and pin bosses connected with the pin boss supports. 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. The inner support elements delimit a cavity that is open toward the pin bosses. The cavity is provided with a separate cooling oil collector that 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具有销凸台支撑的下活塞部分和与销凸台支撑件连接的销凸台。 上活塞部分和下活塞部分各自具有内和外支撑元件，该元件限定外周冷却通道。 内部支撑元件限定朝向销凸起敞开的空腔。 该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。