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公开(公告)号：EP3612727A1
公开(公告)日：2020-02-26
申请号：EP18719122.6
申请日：2018-04-18
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公开(公告)号：EP1200725A1
公开(公告)日：2002-05-02
申请号：EP00951450.6
申请日：2000-07-26
IPC分类号： F02F3/22
CPC分类号： F02F3/22
摘要： The invention relates to a piston for an internal combustion engine with an annular cooling channel that consists of a left and a right cooling channel half and that comprises a first and a second opening. Cooling oil is feed as a free oil jet to the first opening by means of a coolant nozzle, so that it can be fed to the cooling channel and discharged through the second opening. A rib-shaped element extends in a radial direction of the bottom surface of the cooling channel in the area of the inlet opening. The position of said rib-shaped element with respect to the center of the inlet opening depends on the orientation of the coolant nozzle in such a manner that the flow of coolant is fed to the left and right cooling channel half in equal portions.
摘要翻译： 用于内燃机的活塞技术领域本发明涉及一种用于内燃机的具有环形冷却通道的活塞，该环形冷却通道由左和右冷却通道半部构成并且包括第一和第二开口。 冷却油作为自由喷油嘴通过冷却剂喷嘴供给到第一开口，以便冷却油可以供给到冷却通道并通过第二开口排出。 肋状元件在入口开口的区域中沿冷却通道底面的径向延伸。 所述肋状元件相对于入口开口的中心的位置取决于冷却剂喷嘴的取向，使得冷却剂的流动以相等的部分被供给到左右冷却通道半部。
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3.发明公开KOLBEN EINER BRENNKRAFTMASCHINE MIT EINEM KÜHLKANAL, DER IM BEREICH DER ABLAUFÖFFNUNG EINE VERGRÖSSERUNG AUFWEIST 审中-公开活塞与漏极领域的冷却通道开口的提高具有一种内燃机
公开(公告)号：EP2129900A1
公开(公告)日：2009-12-09
申请号：EP08701168.0
申请日：2008-01-19
发明人： MÜLLER, Gregor
IPC分类号： F02F3/22
CPC分类号： F02F3/22 , B22C9/10 , F02F2200/06
摘要： The invention relates to a piston of an internal combustion engine with a cooling channel which has at least one inlet opening and at least one outlet opening, wherein according to the invention the cooling channel has an enlargement above the outlet opening, which extends beyond the apex of the cooling channel relative to the radial extent thereof. Likewise, a correspondingly configured disposable core is proposed for the production of such a cooling channel piston.
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公开(公告)号：EP3507479A1
公开(公告)日：2019-07-10
申请号：EP17768687.0
申请日：2017-08-30
发明人： MÜLLER, Gregor
IPC分类号： F02F3/00
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公开(公告)号：EP3405300A1
公开(公告)日：2018-11-28
申请号：EP17707473.9
申请日：2017-01-20
CPC分类号： B21K1/185 , B23P15/10 , F02F3/22 , F02F2003/0007 , F02F2200/04
摘要： Method for producing a cooling duct piston (10) for an internal combustion engine, which cooling duct piston (10) has a cooling duct (60) in its piston crown, wherein the piston crown (90) is adjoined by a piston lower part (50) with piston bosses (100), pin bores (110) and piston skirts (120), wherein first of all a piston main body (20) is produced with a collar (30) which is circumferential and projects radially in the region of the piston crown, wherein the collar (30) is formed until its outer circumferential edge comes very closely or completely into contact with a bearing region of the piston lower part (50), in order to form the cooling duct (60), and subsequently at least one ring groove (40) is introduced, characterized in that a ring-free groove (80) is formed below the ring groove (40), wherein a dividing plane (70) lies between the outer circumferential edge of the formed collar (30) and an upper side of the piston lower part (50) in the ring-free groove (80).
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公开(公告)号：EP3377244A1
公开(公告)日：2018-09-26
申请号：EP16801730.9
申请日：2016-11-17
发明人： MÜLLER, Gregor
摘要： Method for producing a piston (8), which has a cooling channel (4) created by means of a lost core (3), wherein, in a casting process using a casting mould into which the core (3) is placed before casting and using a casting melt, a piston blank (1) is cast and, after the casting melt has solidified, the piston blank (1) is removed from the casting mould and the core (3) is subsequently flushed out, and this is followed by the finishing of the cast blank (1) to produce the piston (8), wherein the core (3) extends into a region of the casting mould that forms an inner region of the piston blank (1) and the core (3) is used to form at least one opening having a rounded profile for the cooling channel (4) after the flushing out.
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公开(公告)号：EP1200725B1
公开(公告)日：2003-03-26
申请号：EP00951450.6
申请日：2000-07-26
IPC分类号： F02F3/22
CPC分类号： F02F3/22
摘要： The invention relates to a piston for an internal combustion engine with an annular cooling channel that consists of a left and a right cooling channel half and that comprises a first and a second opening. Cooling oil is feed as a free oil jet to the first opening by means of a coolant nozzle, so that it can be fed to the cooling channel and discharged through the second opening. A rib-shaped element extends in a radial direction of the bottom surface of the cooling channel in the area of the inlet opening. The position of said rib-shaped element with respect to the center of the inlet opening depends on the orientation of the coolant nozzle in such a manner that the flow of coolant is fed to the left and right cooling channel half in equal portions.
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