公开(公告)号：US06938603B2

公开(公告)日：2005-09-06

申请号：US10748902

申请日：2003-12-30

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F02F3/22 ,  F02B75/06

CPC classification number: F02F3/22 ,  F02F2003/0007 ,  Y10T29/49249 ,  Y10T29/49256 ,  Y10T29/49265 ,  Y10T29/49266

Abstract: A method for the production of a one piece piston for an internal combustion engine. The piston has a ring shaped cooling channel arranged in an outer region of a piston head. The channel is partially closed off by a circumferential projection structured as an oil groove. The piston is produced in a simple and inexpensive manner using a piston blank using cutting work such as lathing.

Abstract translation: 一种用于生产用于内燃机的单件式活塞的方法。 活塞具有布置在活塞头的外部区域中的环形冷却通道。 通过构造为油槽的周向突起部分地封闭通道。 使用诸如车辙的切割工作的活塞坯料，以简单且便宜的方式生产活塞。

公开(公告)号：US06729291B1

公开(公告)日：2004-05-04

申请号：US10382431

申请日：2003-03-06

Applicant: Rainer Scharp ,  Dieter Messmer

Inventor： Rainer Scharp ,  Dieter Messmer

IPC: F02F322

CPC classification number: F02F3/22 ,  F02F3/0023

Abstract: A multipart cooled piston for an internal combustion engine comprises an upper part and a lower part of the piston. The two parts are screwed together via a threaded bolt that is arranged on the upper part of the piston, and a threaded bore that is drilled into the lower part of the piston. The threaded bore is arranged in an area of the lower part of the piston that is thin-walled to such a degree that it is deformed like a plate spring as the two parts of the piston are screwed together, so that no other safety means such as a lock nut are required for securing the assembled piston.

Abstract translation: 用于内燃机的多部分冷却活塞包括活塞的上部和下部。 两个部件通过布置在活塞上部的螺栓螺纹连接在一起，以及钻入活塞下部的螺纹孔。 螺纹孔布置在活塞的下部的薄壁区域中，使得当活塞的两个部分旋拧在一起时，其像板簧一样变形，使得没有其他安全装置 因为需要固定螺母以固定组装的活塞。

公开(公告)号：US08689743B2

公开(公告)日：2014-04-08

申请号：US13408023

申请日：2012-02-29

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F02F3/16

CPC classification number: F16J1/08 ,  F02F3/22

Abstract: A piston for an internal combustion engine has a piston head and a piston skirt. The piston head has a circumferential ring belt and a circumferential cooling channel. The piston skirt has a working surface assigned to its major thrust side and to its minor thrust side. A bore that proceeds from the cooling channel is provided, which ends in the working surface assigned to the major thrust side, and is disposed at an incline, in such a manner that the bore exit encloses an acute angle (α) with the center axis (M) of the piston. An opening is formed in the working surface, and a deflection surface inclined relative to the working surface is provided between the bore and the bore exit. The working surface assigned to the major thrust side has a depression which forms at least one oil capture region above the opening.

Abstract translation: 用于内燃机的活塞具有活塞头和活塞裙。 活塞头具有周向环带和周向冷却通道。 活塞裙部具有分配到其主推力侧和其小推力侧的工作表面。 提供从冷却通道进入的孔，其以分配给主推力侧的工作表面结束并且以倾斜的方式设置，使得孔出口与中心轴线成锐角（α） （M）。 在工作面上形成开口，在孔和孔出口之间设有相对工作面倾斜的偏转面。 分配给主推力侧的工作表面具有在开口上方形成至少一个油捕获区域的凹陷。

公开(公告)号：US20120222632A1

公开(公告)日：2012-09-06

申请号：US13066554

申请日：2011-04-18

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F01P1/04

CPC classification number: F16J1/09 ,  F02F3/003 ,  F02F3/22

Abstract: The present invention relates to a piston (10) for an internal combustion engine, having an outer circumferential cooling channel (19) and an inner cooling cavity (21), the cooling cavity bottom (22) of which has an opening (23) that is closed off with a separate closure element (33) that has at least one cooling oil opening (35), whereby the closure element (33) is held, in clamped manner, by means of two engagement elements (37) disposed on the outer edge, in at least one engagement groove (34) provided in the region of the opening (23) of the cooling cavity bottom (22). According to the invention, it is provided that the closure element (33) has at least two spring tabs (38) that support themselves on a contact surface (39) provided in the piston interior, in each instance, in such a manner that the closure element (33) is held in the engagement groove (34) under axial bias.

Abstract translation: 本发明涉及一种用于内燃机的活塞（10），其具有外周冷却通道（19）和内部冷却腔（21），其冷却腔底部（22）具有开口（23），所述开口 用具有至少一个冷却油开口（35）的单独的封闭元件（33）封闭，由此封闭元件（33）以夹紧的方式通过设置在外部的两个接合元件（37）保持 在设置在冷却腔底部（22）的开口（23）的区域中的至少一个接合槽（34）中。 根据本发明，提供了闭合元件（33）具有至少两个弹簧接头（38），每个弹簧接头（38）在每种情况下都支撑在设置在活塞内部的接触表面（39）上， 闭合元件（33）在轴向偏压下被保持在接合槽（34）中。

公开(公告)号：US08146560B2

公开(公告)日：2012-04-03

申请号：US12381841

申请日：2009-03-17

Applicant: Rainer Scharp ,  Klaus Keller ,  Volker Weisse

Inventor： Rainer Scharp ,  Klaus Keller ,  Volker Weisse

IPC: F02F3/22 ,  F02F3/00

CPC classification number: F02F3/003 ,  F02F3/22 ,  F02F2003/0061

Abstract: The present invention relates to a multi-part piston (10, 110) for an internal combustion engine, having an upper piston part (11, 111) having a piston crown (13), and a lower piston part (12), whereby the lower piston part (12) has pin boss supports (32) and pin bosses (18) connected with them, whereby the upper piston part (11) and the lower piston part (12) each have an inner (21, 25) and an outer (22, 26) support element, which elements delimit an outer circumferential cooling channel (29). According to the invention, it is provided that the inner support elements (21, 25) delimit a cavity (31) that is open toward the pin bosses (18), and that the cavity (31) is provided with a separate cooling oil collector (35, 135) that has at least one cooling oil opening (37, 38). The present invention furthermore relates to a method for the production of such a piston.

Abstract translation: 本发明涉及一种用于内燃机的多部件活塞（10,110），其具有具有活塞顶部（13）的上活塞部件（11,111）和下活塞部件（12），由此， 下活塞部分（12）具有销钉凸起支撑件（32）和与其连接的销凸起（18），由此上活塞部件（11）和下活塞部件（12）各自具有内（21,25）和 外部（22,26）支撑元件，所述元件限定外周冷却通道（29）。 根据本发明，内部支撑元件（21,25）限定了朝向销凸起（18）开口的空腔（31），并且空腔（31）设置有单独的冷却油收集器 （35,135），其具有至少一个冷却油开口（37,38）。 本发明还涉及一种用于生产这种活塞的方法。

公开(公告)号：US20110155080A1

公开(公告)日：2011-06-30

申请号：US12308356

申请日：2007-06-08

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F02F3/22

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）构成。 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）。

公开(公告)号：US07762178B2

公开(公告)日：2010-07-27

申请号：US12002113

申请日：2007-12-14

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F01B31/08

CPC classification number: F02F3/0015 ,  F02F3/22

Abstract: A two-part piston for an internal combustion engine consists of an upper part, a lower part and a circumferential, closed cooling channel radially on the outside and close to the piston crown. The channel is closed off, on its underside, by a cooling channel cover which is connected via a skirt connection with two skirt elements that lie opposite one another. In order to reduce the piston weight and nevertheless avoid secondary movements of the piston, circumferential recesses are provided in the region of the skirt elements, which are delimited by the cooling channel cover on the piston crown side and by the skirt connections on the skirt side. The skirt connections are connected with the radially inner region of the cooling channel cover on the piston crown side, and with the upper regions of the skirt elements on the skirt side.

Abstract translation: 用于内燃机的两部分活塞由径向在外部并靠近活塞顶部的上部，下部和周向封闭的冷却通道组成。 通道在其下侧通过冷却通道盖封闭，冷却通道盖通过裙部连接与两个彼此相对的裙部元件连接。 为了减小活塞重量并且尽管避免了活塞的二次运动，周边凹部设置在裙部元件的区域中，这些区域由活塞冠侧上的冷却通道盖和裙侧上的裙部连接限定 。 裙部连接件与活塞冠侧上的冷却通道盖的径向内部区域连接，并且裙部元件的上部区域在裙侧上。

公开(公告)号：US20100108016A1

公开(公告)日：2010-05-06

申请号：US12381841

申请日：2009-03-17

Applicant: Rainer Scharp ,  Klaus Keller ,  Volker Weisse

Inventor： Rainer Scharp ,  Klaus Keller ,  Volker Weisse

IPC: F02F3/00 ,  F01B31/00

CPC classification number: F02F3/003 ,  F02F3/22 ,  F02F2003/0061

Abstract: The present invention relates to a multi-part piston (10, 110) for an internal combustion engine, having an upper piston part (11, 111) having a piston crown (13), and a lower piston part (12), whereby the lower piston part (12) has pin boss supports (32) and pin bosses (18) connected with them, whereby the upper piston part (11) and the lower piston part (12) each have an inner (21, 25) and an outer (22, 26) support element, which elements delimit an outer circumferential cooling channel (29). According to the invention, it is provided that the inner support elements (21, 25) delimit a cavity (31) that is open toward the pin bosses (18), and that the cavity (31) is provided with a separate cooling oil collector (35, 135) that has at least one cooling oil opening (37, 38). The present invention furthermore relates to a method for the production of such a piston.

Abstract translation: 本发明涉及一种用于内燃机的多部件活塞（10,110），其具有具有活塞顶部（13）的上活塞部件（11,111）和下活塞部件（12），由此， 下活塞部分（12）具有销钉凸起支撑件（32）和与其连接的销凸起（18），由此上活塞部件（11）和下活塞部件（12）各自具有内（21,25）和 外部（22,26）支撑元件，所述元件限定外周冷却通道（29）。 根据本发明，内部支撑元件（21,25）限定了朝向销凸起（18）开口的空腔（31），并且空腔（31）设置有单独的冷却油收集器 （35,135），其具有至少一个冷却油开口（37,38）。 本发明还涉及一种用于生产这种活塞的方法。

公开(公告)号：US20100107868A1

公开(公告)日：2010-05-06

申请号：US12381840

申请日：2009-03-17

Applicant: Rainer Scharp ,  Klaus Keller ,  Volker Weisse

Inventor： Rainer Scharp ,  Klaus Keller ,  Volker Weisse

IPC: F01B31/10 ,  F16J1/04

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

Abstract: The present invention relates to a multi-part piston (10) for an internal combustion engine, having an upper piston part (11) having a piston crown (13), and a lower piston part (12), whereby the lower piston part (12) has pin boss supports (32) and pin bosses (18) connected with them, whereby the upper piston part (11) and the lower piston part (12) each have an inner (21, 25) and an outer (22, 26) support element, which elements delimit an outer circumferential cooling channel (29). According to the invention, it is provided that the inner support elements (21, 25) delimit a cavity (31) that is open toward the pin bosses (18), and that the cavity (31) is provided with a separate cooling oil collector (35) that has at least one cooling oil opening (37, 38).

Abstract translation: 本发明涉及一种用于内燃机的多部件活塞（10），其具有具有活塞顶部（13）的上活塞部件（11）和下活塞部件（12），由此下活塞部件 12）具有与其连接的销凸台支撑件（32）和销凸台（18），由此上活塞部件（11）和下活塞部件（12）各自具有内部（21）和外部（22） 26）支撑元件，所述元件限定外周冷却通道（29）。 根据本发明，内部支撑元件（21,25）限定了朝向销凸起（18）开口的空腔（31），并且空腔（31）设置有单独的冷却油收集器 （35），其具有至少一个冷却油开口（37,38）。

公开(公告)号：US07685710B2

公开(公告)日：2010-03-30

申请号：US10578595

申请日：2004-10-30

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: B21K1/18 ,  B23P15/08

CPC classification number: F02F3/22 ,  B21K1/185 ,  B23P15/10 ,  F02F3/003 ,  Y10T29/49249 ,  Y10T29/49252 ,  Y10T29/49256 ,  Y10T29/49258 ,  Y10T29/49265 ,  Y10T29/49266 ,  Y10T29/49274

Abstract: The invention relates to a method for producing a piston (1) for an internal combustion engine. The inventive method comprises producing the base (4) from aluminum by a forging process, casting, by way of a composite casting process, a ring support (10) which is provided with a cooling channel (15) into an aluminum ring element (6), and then welding the ring element (6) with the base (4).

Abstract translation: 本发明涉及一种用于生产用于内燃机的活塞（1）的方法。 本发明的方法包括通过锻造工艺从铝制造基底（4），通过复合铸造工艺铸造环形支撑件（10），其将冷却通道（15）设置到铝环形元件（6）中 ），然后将环形元件（6）与基座（4）焊接。