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公开(公告)号：US20180306320A1
公开(公告)日：2018-10-25
申请号：US15769336
申请日：2016-10-04
发明人： Rudi Juergen , Ralf Braig
摘要： A piston for an internal combustion engine may include two pin bosses configured to receive a gudgeon pin. The two pin bosses may respectively include a nadir pocket of at least two nadir pockets at α=180° and extending outward from a piston axis. The at least two nadir pockets may have a respective length that is smaller than a length of a respective pin boss of the at least two pin bosses. The piston may also include a pin boss axis that is axially offset from the piston axis by 0.1-1.0 mm.
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公开(公告)号：US20220034280A1
公开(公告)日：2022-02-03
申请号：US17378654
申请日：2021-07-16
发明人： Ulrich Bischofberger , Ralf Braig , Kai Schreer , Ioan Stefan
摘要： A piston for an internal combustion engine may include a ring belt, a groove, and an additional groove. The ring belt may extend along an axial direction. The groove may be arranged on the outer circumference of the ring belt and may be configured to receive an oil scraper ring. The additional groove may be arranged on the outer circumference spaced apart from the groove with respect to the axial direction. The additional groove may include a first groove side axially facing away from the groove and a second groove side axially facing the groove. The first groove side may include an axial step.
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公开(公告)号：US10774931B2
公开(公告)日：2020-09-15
申请号：US15769336
申请日：2016-10-04
发明人： Juergen Rudi , Ralf Braig
摘要： A piston for an internal combustion engine may include two pin bosses configured to receive a gudgeon pin. The two pin bosses may respectively include a nadir pocket of at least two nadir pockets at α=180° and extending outward from a piston axis. The at least two nadir pockets may have a respective length that is smaller than a length of a respective pin boss of the at least two pin bosses. The piston may also include a pin boss axis that is axially offset from the piston axis by 0.1-1.0 mm.
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公开(公告)号：US10711896B2
公开(公告)日：2020-07-14
申请号：US15761086
申请日：2016-09-08
发明人： Ralf Braig , Dieter Emmrich , Eric Erbs , Rainer Fischer , Thomas Hettich , Artem Walter , Markus A. Hirsch
摘要： A piston for an internal combustion engine may include a piston skirt extending in a piston longitudinal direction and defined in the piston longitudinal direction by a piston head. The piston skirt may include a boxed interior space defined by two box walls and two substantially opposing skirt walls. A boss having a through-opening may be arranged on each of the two box walls, the two through-openings being oriented so that they align with one another. The two box walls may each include a boss portion oriented perpendicularly to the boss, and at least one intermediate portion extending between the respective boss portion and one of the skirt walls. The intermediate portion may merge via a bend into the associated boss portion. A radial extent of the boss portion may be greater than a diameter of the through-opening and at least 50% of a diameter of the piston.
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公开(公告)号：US11492997B2
公开(公告)日：2022-11-08
申请号：US17378654
申请日：2021-07-16
发明人： Ulrich Bischofberger , Ralf Braig , Kai Schreer , Ioan Stefan
摘要： A piston for an internal combustion engine may include a ring belt, a groove, and an additional groove. The ring belt may extend along an axial direction. The groove may be arranged on the outer circumference of the ring belt and may be configured to receive an oil scraper ring. The additional groove may be arranged on the outer circumference spaced apart from the groove with respect to the axial direction. The additional groove may include a first groove side axially facing away from the groove and a second groove side axially facing the groove. The first groove side may include an axial step.
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公开(公告)号：US10655561B2
公开(公告)日：2020-05-19
申请号：US14383226
申请日：2013-03-06
发明人： Jochen Adelmann , Ralf Braig , Michael Marquardt
摘要： A cast light metal piston for an internal combustion engine may include a piston crown and a piston skirt adjoining the piston crown. The piston skirt may include two skirt walls arranged on a pressure side and a counterpressure side, respectively. The piston skirt may have two box walls connecting the skirt walls, which conically taper towards one another in a direction of the piston crown. The piston may include an annularly encircling cooling channel. A thickness of the piston crown may amount to a maximum of 4.5 mm.
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公开(公告)号：US20180266557A1
公开(公告)日：2018-09-20
申请号：US15761086
申请日：2016-09-08
发明人： Ralf Braig , Dieter Emmrich , Eric Eric Erbs , Rainer Fischer , Thomas Hettich , Artem Walter , Markus A. Hirsch
摘要： A piston for an internal combustion engine may include a piston skirt extending in a piston longitudinal direction and defined in the piston longitudinal direction by a piston head. The piston skirt may include a boxed interior space defined by two box walls and two substantially opposing skirt walls. A boss having a through-opening may be arranged on each of the two box walls, the two through-openings being oriented so that they align with one another. The two box walls may each include a boss portion oriented perpendicularly to the boss, and at least one intermediate portion extending between the respective boss portion and one of the skirt walls. The intermediate portion may merge via a bend into the associated boss portion. A radial extent of the boss portion may be greater than a diameter of the through-opening and at least 50% of a diameter of the piston.
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公开(公告)号：US20150027400A1
公开(公告)日：2015-01-29
申请号：US14383226
申请日：2013-03-06
发明人： Jochen Adelmann , Ralf Braig , Michael Marquardt
CPC分类号： F02F3/0084 , F01P3/10 , F02F3/20 , F02F3/22 , F02F2003/0007
摘要： A cast light metal piston for an internal combustion engine may include a piston crown and a piston skirt adjoining the piston crown. The piston skirt may include two skirt walls arranged on a pressure side and a counterpressure side, respectively. The piston skirt may have two box walls connecting the skirt walls, which conically taper towards one another in a direction of the piston crown. The piston may include an annularly encircling cooling channel. A thickness of the piston crown may amount to a maximum of 4.5 mm.
摘要翻译： 用于内燃机的铸造轻金属活塞可以包括活塞冠和毗邻活塞冠的活塞裙。 活塞裙部可以包括分别设置在压力侧和反压侧的两个裙壁。 活塞裙部可以具有连接裙壁的两个盒壁，其在活塞冠的方向上相互锥形。 活塞可以包括环形环绕的冷却通道。 活塞顶部的厚度可以达到最大4.5mm。
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