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公开(公告)号:EP2855907A1
公开(公告)日:2015-04-08
申请号:EP12738148.1
申请日:2012-06-04
发明人: PISILÄ, Sakari , RÖNNSKOG, Tommy
IPC分类号: F02F3/22
CPC分类号: F02F3/0069 , F01P3/10 , F02F3/0015 , F02F3/22 , F16J1/16 , F16J1/18
摘要: A piston (1) assembly for internal combustion diesel engine having a piston diameter (D) of 160 to 650 mm, the piston (1) assembly comprising a top part (2) and a body part (3) and a gudgeon pin (4) connectable to each other, - the top part (2) defining, when installed in a cylinder of the engine, the piston (1) side of a combustion chamber, and - the body part (3) having an aperture (30) for a gudgeon pin (4), bosses (32) for distributing forces, when in use, between the piston (1) and the gudgeon pin (4), the body part (3) having an interior (33), an outer surface (34) and operable connecting surfaces (35), - the gudgeon pin (4) for connecting the piston (1) to a connecting rod 5 of the engine in a pivotal manner, - the gudgeon pin (4) is configured to be assembled and lockable by locking means (6) to the aperture (30) of the body part (3) in a given rotational orientation such that there is provided a conduit (57, 47, 37) for supplying cooling oil from the connecting rod (5) via the gudgeon pin (4) to the bosses (32) and further to a cooling gallery (23) between the top part (2) and the body part (3), said conduit (47) is formed through the gudgeon pin (4) as a cross sectionally closed conduit (47).
摘要翻译: 一种用于内燃柴油发动机的活塞(1)组件,其具有160至650mm的活塞直径(D),所述活塞(1)组件包括顶部(2)和主体部分(3)以及活塞销(4) ),所述顶部(2)在安装在所述发动机的气缸中时限定燃烧室的所述活塞(1)侧,以及 - 所述主体部分(3)具有孔口(30),用于 (4),凸起(32),用于在活塞(1)和销轴(4)之间分配力,所述活塞(1)具有内部(33),外表面( 34)和可操作的连接表面(35), - 用于以可枢转的方式将活塞(1)连接到发动机的连杆5的销轴销(4), - 销轴销(4) 可以通过锁定装置(6)以给定的旋转取向锁定到主体部件(3)的孔(30),从而提供用于从连接杆(5)供应冷却油的导管(57,47,37) 通过 (4)连接到凸台(32)并进一步到顶部(2)和主体部分(3)之间的冷却通道(23),所述导管(47)穿过销轴(4)形成为 横截面封闭的导管(47)。
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公开(公告)号:EP2798182B1
公开(公告)日:2016-12-07
申请号:EP11813333.9
申请日:2011-12-30
发明人: PISILÄ, Sakari , RÖNNSKOG, Tommy
IPC分类号: F02F3/00
CPC分类号: F02F3/0069 , B23P15/10 , F02F3/0023 , F05C2201/021
摘要: A piston for internal combustion diesel engine having a piston diameter of 180 to 650 mm, includes a top part and a body part connectable to each other, the top part defining, when installed in a cylinder of the engine, the piston side of a combustion chamber, and the body part having an aperture for a gudgeon pin, bosses for distributing forces, when in use, between the piston and the gudgeon pin, the body part having an interior, an outer surface and operable connecting surfaces. The interior of the body part includes an interior wall having a macro geometry of wavy surface, where a wave has a length of 3 to 25 mm and a height of 0.3 to 3 mm, the wavy surface having a micro geometry measurable as a surface roughness of 5 to 9 μm.
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公开(公告)号:EP2798182A1
公开(公告)日:2014-11-05
申请号:EP11813333.9
申请日:2011-12-30
发明人: PISILÄ, Sakari , RÖNNSKOG, Tommy
IPC分类号: F02F3/00
CPC分类号: F02F3/0069 , B23P15/10 , F02F3/0023 , F05C2201/021
摘要: A piston for internal combustion diesel engine having a piston diameter of 180 to 650 mm, includes a top part and a body part connectable to each other, the top part defining, when installed in a cylinder of the engine, the piston side of a combustion chamber, and the body part having an aperture for a gudgeon pin, bosses for distributing forces, when in use, between the piston and the gudgeon pin, the body part having an interior, an outer surface and operable connecting surfaces. The interior of the body part includes an interior wall having a macro geometry of wavy surface, where a wave has a length of 3 to 25 mm and a height of 0.3 to 3 mm, the wavy surface having a micro geometry measurable as a surface roughness of 5 to 9 μm.
摘要翻译: 一种活塞直径为180〜650mm的内燃式柴油发动机的活塞(1),包括:顶部(2)和可相互连接的主体部(3),所述顶部在安装在 发动机,燃烧室的活塞侧和具有用于舵头(4)的孔(30)的主体部分,用于在使用中在活塞和舵头销之间分配力的凸台(32) 主体部分具有内部(33),外表面(34)和可操作的连接表面(35)。 身体部分的内部包括具有波浪形(331)表面的宏观几何形状的内壁(330),其中波长为3至25mm,高度为0.3至3mm,波浪形表面具有微观 几何可测量为5至9μm的表面粗糙度。
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公开(公告)号:EP2855907B1
公开(公告)日:2016-07-27
申请号:EP12738148.1
申请日:2012-06-04
发明人: PISILÄ, Sakari , RÖNNSKOG, Tommy
IPC分类号: F02F3/22
CPC分类号: F02F3/0069 , F01P3/10 , F02F3/0015 , F02F3/22 , F16J1/16 , F16J1/18
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公开(公告)号:EP2904248A1
公开(公告)日:2015-08-12
申请号:EP12780769.1
申请日:2012-10-08
发明人: PISILÄ, Sakari , RÖNNSKOG, Tommy
CPC分类号: F02F3/22 , F01P3/10 , F02F3/0023
摘要: A piston (1) assembly for an internal combustion diesel engine having a piston diameter (D) of 160 to 650 mm, the piston (1) assembly comprising a top part (2) and a body part (3) and a cooling gallery (23) arranged between the top part (2) and the body part (3), - the top part (2) defining, when installed in a cylinder (C) of the engine, the piston (1) side of a combustion chamber, and - the body part (3) having an aperture (30) for a gudgeon pin (4), bosses (32) for distributing forces, when in use, between the piston (1) and the gudgeon pin (4), the body part (3) having an interior (33), an outer surface (34) comprising indentations (340) defined by the outer surfaces (34) of the bosses (32) and an imaginary boundary of the cylinder (C) of the engine, and - the cooling gallery (23) is arranged as a hollow space between the top part (2) and the body part (3) wherein an amount of piston cooling fluid can be led to remove the superfluous heat from the piston assembly (1), and - the interior side of the top part (2) is arranged to form an inner cooling surface (25) for piston cooling fluid to flow along and cool the central area of the top part (2), - the body part is provided with a conduit (37) for said cooling fluid, said conduit (37) is extending between the indentation (340) and the cooling gallery (23).
摘要翻译: 一种用于内燃柴油发动机的活塞(1)组件,其具有160至650mm的活塞直径(D),所述活塞(1)组件包括顶部(2)和主体部分(3)以及冷却通道 (2)和主体部分(3)之间, - 顶部(2),当安装在发动机的汽缸(C)中时,其限定燃烧室的活塞(1)侧, 和 - 具有用于销轴(4)的孔(30)的主体部分(3),凸起(32)用于在使用时将活塞(1)和销轴(4)之间的力分配,主体 (32)的外表面(34)和发动机的汽缸(C)的假想边界限定的凹口(340)的外表面(34),所述内表面(33) 和 - 冷却通道(23)布置成顶部(2)和主体部分(3)之间的中空空间,其中一定量的活塞冷却流体可被引导以从活塞组件(1)移除多余的热量, ,以及 - 整数 所述顶部部分(2)的前侧布置成形成用于活塞冷却流体沿所述顶部部分(2)的中心区域流动并冷却所述顶部部分(2)的中心区域的内部冷却表面(25),所述主体部分设置有导管 所述管道(37)在所述凹槽(340)和所述冷却通道(23)之间延伸。
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