公开(公告)号：US20150101191A1

公开(公告)日：2015-04-16

申请号：US14576384

申请日：2014-12-19

Applicant: MAHLE INTERNATIONAL GMBH

Inventor： Rainer SCHARP ,  Gerhard BERR ,  Sascha-Oliver BOCZEK ,  Reiner MUELLER

IPC: B23P15/10 ,  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：US20160115900A1

公开(公告)日：2016-04-28

申请号：US14894338

申请日：2014-05-28

Applicant: MAHLE INTERNATIONAL GMBH

Inventor： Rainer SCHARP ,  Peter KEMNITZ

IPC: F02F3/22

CPC classification number: F02F3/22 ,  F01P3/08 ,  F02F3/00 ,  F02F3/02 ,  F02F3/16 ,  F02F3/20

Abstract: A piston for an internal combustion engine may include a piston head and a piston skirt. The piston head may include a piston crown, a circumferential fire land, a circumferential ring belt having a plurality of ring grooves, and a circumferential cooling duct. The cooling duct may be open in a direction away from the fire land and may be at least partially closed by a closure element. The cooling duct may include a cooling duct bottom and a cooling duct ceiling. The piston skirt may have at least two piston bosses connected to one another via at least two running faces. At least one running face may have an inner face connected via a connecting land to an underside of the piston head.

Abstract translation: 用于内燃机的活塞可以包括活塞头和活塞裙。 活塞头可以包括活塞冠，周向火炬，具有多个环槽的周向环带和周向冷却导管。 冷却管道可以在远离火场的方向上敞开，并且可以至少部分地由封闭元件封闭。 冷却管道可包括冷却管道底部和冷却管道顶部。 活塞裙部可以具有经由至少两个运行面彼此连接的至少两个活塞凸台。 至少一个运行面可以具有经由连接区域连接到活塞头的下侧的内表面。

公开(公告)号：US20140137405A1

公开(公告)日：2014-05-22

申请号：US14162950

申请日：2014-01-24

Applicant: MAHLE INTERNATIONAL GMBH

Inventor： Rainer SCHARP ,  Peter KEMNITZ ,  Michael ULLRICH

IPC: B23P15/10

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

Abstract: A method for producing piston for an internal combustion engine which 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: 一种用于制造内燃机的活塞的方法，该内燃机具有具有周向冷却通道的活塞头以及具有通过碗边缘区域向活塞冠过渡的周向碗壁的燃烧碗。 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。 下焊缝 接缝被配置在碗壁中，该接缝与活塞中心轴线（M）围成锐角并且终止于冷却通道的下半部分。 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：US20160229007A1

公开(公告)日：2016-08-11

申请号：US15130194

申请日：2016-04-15

Applicant: MAHLE International GmbH

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: 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.

公开(公告)号：US20160123273A1

公开(公告)日：2016-05-05

申请号：US14894339

申请日：2014-05-28

Applicant: MAHLE INTERNATIONAL GMBH

Inventor： Rainer SCHARP ,  Peter KEMNITZ

IPC: F02F3/22

CPC classification number: F02F3/22 ,  F02F3/18

Abstract: A piston for an internal combustion engine may include a piston crown and a piston skirt. The piston crown may include a piston head, a peripheral top land, a peripheral annular zone having a plurality of annular grooves and an annular closed cooling channel. The cooling channel may include a cooling channel base and a cooling channel cover. The cooling channel base may be arranged above the lower annular groove in relation to a region of combustion.

Abstract translation: 用于内燃机的活塞可以包括活塞冠和活塞裙。 活塞顶部可以包括活塞头，周边顶部区域，具有多个环形槽的周边环形区域和环形封闭冷却通道。 冷却通道可以包括冷却通道底座和冷却通道盖。 冷却通道底座可以相对于燃烧区域布置在下环形槽的上方。

公开(公告)号：US20140331958A1

公开(公告)日：2014-11-13

申请号：US14337316

申请日：2014-07-22

Applicant: MAHLE International GmbH

Inventor： Karlheinz BING ,  Michael T. LAPP ,  Rainer SCHARP ,  Michael ULLRICH

IPC: F02F3/00

CPC classification number: F02F3/00 ,  B23K26/28 ,  B23K2101/003 ,  B23P15/10 ,  F02F3/003 ,  F02F3/22 ,  F02F2200/00 ,  Y10T29/49249 ,  Y10T29/49252

Abstract: A method for the production of a piston for an internal combustion engine, having 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 at least a crown region of a combustion bowl as well as the piston skirt. The piston ring element has at least 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 are connected by a circumferential joining seam in the region of the combustion bowl.

Abstract translation: 一种用于生产用于内燃机的活塞的方法，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。 活塞基体至少具有燃烧碗的冠部区域以及活塞裙部。 活塞环元件至少具有活塞冠，燃烧碗的壁区域，周向顶部区域和具有环形槽的圆周环形带。 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通过在燃烧碗的区域中的周向连接接缝连接。

公开(公告)号：US20140190443A1

公开(公告)日：2014-07-10

申请号：US14195921

申请日：2014-03-04

Applicant: MAHLE International GmbH

Inventor： Helmut EDEL ,  Andreas SEEGER-VAN NIE ,  Volker WEISSE ,  Achim FEDYNA ,  Christian PESCHKE ,  Rainer SCHARP

IPC: F02F3/00

CPC classification number: F02F3/00 ,  F02F3/003 ,  F02F3/22 ,  F02F2003/0061 ,  F05C2201/021 ,  F05C2201/0448 ,  Y10T29/49252

Abstract: A piston for an internal combustion engine, having a piston base body, a piston ring element having at least an inner region of a piston crown, and a piston skirt. The piston is provided with pin bosses having pin bores and the ring element has at least an outer region of a piston crown having a circumferential top land and a circumferential ring belt provided with ring grooves. The piston base body and piston ring element are joined together by way of corresponding, conical joining surfaces configured on them.

Abstract translation: 一种用于内燃机的活塞，具有活塞基体，至少具有活塞顶部的内部区域的活塞环元件和活塞裙部。 活塞设置有具有销孔的销凸台，并且环形元件具有至少一个具有周向顶部凸台的活塞顶部的外部区域和设置有环形槽的周向环形带。 活塞基体和活塞环元件通过配置在其上的相应的锥形连接表面连接在一起。

公开(公告)号：US20140069355A1

公开(公告)日：2014-03-13

申请号：US14080975

申请日：2013-11-15

Applicant: MAHLE International GmbH

Inventor： Rainer SCHARP ,  Matthias SEIFRIED

IPC: F02F3/16

CPC classification number: F02F3/16 ,  B23K20/12 ,  B23K2101/003 ,  B23P15/10 ,  F02F3/003 ,  F02F3/22 ,  F02F2003/0061 ,  Y10T29/49249

Abstract: A piston for an internal combustion engine is formed by the following 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: 用于内燃机的活塞通过以下步骤形成：（a）提供活塞基体的坯料，其具有外接合表面，内接合表面和在两个接合表面之间延伸的周向下冷却通道部分 ，（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。