公开(公告)号：US20120151766A1

公开(公告)日：2012-06-21

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

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。

公开(公告)号：US20120131795A1

公开(公告)日：2012-05-31

申请号：US13369435

申请日：2012-02-09

Applicant: Rainer SCHARP ,  Klaus KELLER ,  Volker WEISSE

Inventor： Rainer SCHARP ,  Klaus KELLER ,  Volker WEISSE

IPC: B23P15/10

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：US20120240881A1

公开(公告)日：2012-09-27

申请号：US13489825

申请日：2012-06-06

Applicant: Rainer SCHARP ,  Klaus KELLER ,  Volker WEISSE ,  Sascha-Oliver BOCZEK

Inventor： Rainer SCHARP ,  Klaus KELLER ,  Volker WEISSE ,  Sascha-Oliver BOCZEK

IPC: F01P1/04 ,  F16J1/08

CPC classification number: F02F3/22 ,  B23P15/10 ,  F01P3/10 ,  F02F3/003

Abstract: A multi-part piston for an internal combustion engine has an upper piston part having a piston crown, and a lower piston part having pin boss supports and pin bosses connected with them. The upper piston part and lower piston part each have an inner and an outer support element, which delimit an outer circumferential cooling channel. The inner support elements delimit a cavity that is open toward the pin bosses, and 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件的下活塞部件和与其连接的销凸台。 上活塞部分和下活塞部分均具有限定外周冷却通道的内部和外部支撑元件。 内部支撑元件限定朝向销凸起敞开的空腔，并且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。