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公开(公告)号：US20210246934A1
公开(公告)日：2021-08-12
申请号：US17023653
申请日：2020-09-17
发明人： Jeong Soo SHIN , Doeon KIM
摘要： A crankshaft oil supply structure includes: an upper engine block having upper end saddles positioned at both ends thereof and an upper crank saddle positioned between the upper end saddles; a lower engine block formed with a plurality of lower crank saddle; an upper end bearing formed with an end bearing hole and mounted on each of the upper end saddles; an upper main bearing formed with a main bearing hole and mounted on the upper crank saddle; a lower bearing mounted on each lower crank saddle of the plurality of lower crank saddles; and a crankshaft formed with an end journal supported by the upper end bearing, a main bearing journal supported by the upper main bearing, and a crank pin journal. In particular, the main bearing hole is larger than the end bearing hole.
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公开(公告)号：US10690176B2
公开(公告)日：2020-06-23
申请号：US14688800
申请日：2015-04-16
摘要： Systems and methods are provided for cooling a piston arranged within a cylinder of an engine. Oil received from a connecting rod bearing and crank journal interface may be continuously transferred via an internal conduit in a connecting rod coupled to the piston wherein the internal conduit is formed within a hollow flange of the connecting rod. The oil may then be sprayed in a continuous manner via an external nozzle to an underside of the piston, enabling continuous piston cooling as the piston travels from a top-dead-center (TDC) position to a bottom-dead-center position (BDC) and back.
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公开(公告)号：US20200173558A1
公开(公告)日：2020-06-04
申请号：US16209321
申请日：2018-12-04
申请人： Caterpillar Inc.
IPC分类号： F16J15/3236 , F16C33/74 , F16J15/3284 , F16C3/14
摘要： A shaft seal for disposition between a shaft mounted for rotation and a bore includes a radial shaft-sealing sleeve assembly rotatably mounted with an outer carrier assembly. The radial shaft-sealing sleeve assembly includes a radial shaft-sealing sleeve and a first contact exclusion lip. The outer carrier assembly includes an outer carrier with a molded seal along having an outer radial section of the outer carrier and an elongated molded seal lip extending into a chamber formed between the radial shaft-sealing sleeve and the outer carrier, a second contact exclusion lip, and a main pumping lip. The first contact exclusion lip forming a dynamic seal against the outer carrier, and the second contact exclusion lip and main pumping lip forming dynamic seals against the radial shaft-sealing sleeve.
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公开(公告)号：US10145409B2
公开(公告)日：2018-12-04
申请号：US15358593
申请日：2016-11-22
发明人： Kenta Kato , Osamu Ishigo , Yasushi Saito
摘要： There is provided a bearing apparatus of a crankshaft for an internal combustion engine. The bearing apparatus includes a crankshaft having a plurality of journal portions and a plurality of crank pin portions; a main bearing supporting the crankshaft; and a bearing housing holding the main bearing. The plurality of journal portions include a first journal portion having a lubricating oil passage and a second journal portion not having the lubricating oil passage. The first and second journal portions and are supported by the first and second main bearings and. The bearing housing includes an Al alloy upper housing and an Fe alloy lower housing. The groove depth of the oil groove of the upper half bearing of the second main bearing is one half or less than the groove depth of the oil groove of the upper half bearing of the first main bearing.
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公开(公告)号：US10072699B2
公开(公告)日：2018-09-11
申请号：US15480488
申请日：2017-04-06
发明人： Yusuke Uesu , Yasushi Saito
CPC分类号： F16C9/02 , F01M1/06 , F01M11/02 , F01M2001/062 , F01M2011/026 , F02F7/0053 , F16C3/14 , F16C17/022 , F16C17/26 , F16C33/046 , F16C33/1055 , F16C33/1065 , F16C35/02
摘要： The bearing apparatus 1 includes a crankshaft having multiple journals, main bearings supporting the crankshaft, and a bearing housing. The plurality of journals include a first journal with a lubricating oil passage and a second journal without a lubricating oil passage. The first and second journals are supported by first and second main bearings, respectively. The bearing housing is constituted by an Al-alloy upper housing and an Fe-alloy lower housing. The depth of the oil groove of the upper half bearing of the second main bearing at least in a ±45° region is equal to or smaller than a half of the depth of the oil groove of the upper half bearing of the first main bearing in the ±45° region.
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公开(公告)号：US20180030864A1
公开(公告)日：2018-02-01
申请号：US15729213
申请日：2017-10-10
发明人： Ulrich GUTZER
CPC分类号： F01M1/06 , F01M2001/062 , F16C3/14 , F16C2240/30
摘要： A crankshaft has a rotational axis, about which the crankshaft can be rotated, and a crankpin journal for mounting a connecting rod eye of a connecting rod. A groove runs in the circumferential direction of the crankpin journal and is provided for the supply of lubricating oil in an outer surface of the crankpin journal. The groove extends only over a defined part length of the circumference of the crankpin journal. A crank arrangement includes a crankshaft of this type and a bearing shell which engages around the crankpin journal.
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公开(公告)号：US20170152885A1
公开(公告)日：2017-06-01
申请号：US15358593
申请日：2016-11-22
发明人： KENTA KATO , OSAMU ISHIGO , YASUSHI SAITO
CPC分类号： F16C3/14 , F01M1/06 , F01M11/02 , F01M2001/062 , F01M2011/026 , F16C9/02 , F16C17/022 , F16C17/26 , F16C33/046 , F16C33/1055 , F16C33/1065 , F16C35/02
摘要： There is provided a bearing apparatus of a crankshaft for an internal combustion engine. The bearing apparatus includes a crankshaft having a plurality of journal portions and a plurality of crank pin portions; a main bearing supporting the crankshaft; and a bearing housing holding the main bearing. The plurality of journal portions include a first journal portion having a lubricating oil passage and a second journal portion not having the lubricating oil passage. The first and second journal portions and are supported by the first and second main bearings and. The bearing housing includes an Al alloy upper housing and an Fe alloy lower housing. The groove depth of the oil groove of the upper half bearing of the second main bearing is one half or less than the groove depth of the oil groove of the upper half bearing of the first main bearing.
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公开(公告)号：US20170009801A1
公开(公告)日：2017-01-12
申请号：US15206875
申请日：2016-07-11
发明人： Sebastian FUNK , Frank HILGER
CPC分类号： F16C3/14 , F01M1/06 , F01M2001/062 , F16C2360/22
摘要： A hollow cast iron crankshaft of an internal combustion engine includes at least one main bearing journal and at least two connecting rod bearing journals. The crankshaft is provided with a plurality of internal oil supply bores to lubricate the connecting rod bearing journals. An outer circumference of the main bearing journal is in fluid communication with an outer circumference of two connecting rod bearing journals by the supply bores.
摘要翻译： 内燃机的中空铸铁曲轴包括至少一个主轴承轴颈和至少两个连杆轴承轴颈。 曲轴设有多个内部供油孔，以润滑连杆轴承轴颈。 主轴承轴颈的外圆周由供应孔与两个连杆轴承轴颈的外周流体连通。
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公开(公告)号：US09243660B2
公开(公告)日：2016-01-26
申请号：US14462714
申请日：2014-08-19
发明人： Yuki Kawashima , Motohiko Koushima
CPC分类号： F16C9/02 , F16C3/14 , F16C17/022 , F16C33/046 , F16C33/10 , F16C33/1065 , F16C2240/42
摘要： A main bearing for a crankshaft of an internal combustion engine has first and second half bearings forming an axial groove on an inner circumferential surface of a butting portion. Each half bearing has a main cylinder portion including a central portion, and crush relief portions each extending toward the central portion from an end surface of the half bearing with a center angle of 3° to 15°. A plurality of crush relief grooves are formed in each crush relief portion in the circumferential direction to communicate with the axial groove. An oil groove is formed in the circumferential direction on an inner circumferential surface of the first half bearing. The second half bearing has a transition region having an inward protruding curved surface a wall thickness of which becomes thinner toward the crush relief portion from the main cylinder portion.
摘要翻译： 用于内燃机的曲轴的主轴承具有在对接部的内周面上形成轴向槽的第一和第二半轴承。 每个半轴承具有包括中心部分的主圆筒部分和从半轴承的端面朝向中心部分以3°至15°的中心角延伸的挤压部分。 在每个挤压卸载部分中沿圆周方向形成多个挤压释放槽以与轴向沟槽连通。 在第一半轴承的内周面上沿圆周方向形成油槽。 第二半轴承具有向内突出的弯曲表面的过渡区域，该过渡区域的壁厚从主缸部分朝向压溃释放部分变薄。
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10.发明授权Crankshaft having optimized crankpin lubrication, and related engine and method for producing the lubrication system 有权具有优化曲柄销润滑的曲轴，以及用于生产润滑系统的相关发动机和方法公开(公告)号：US08985083B2
公开(公告)日：2015-03-24
申请号：US14000243
申请日：2012-01-18
申请人： Fabien Gouzonnat , Carlos Pai Joao
发明人： Fabien Gouzonnat , Carlos Pai Joao
CPC分类号： F16C3/14 , Y10T29/49286
摘要： The invention relates to a crankshaft comprising at least: a journal; a first crankpin; a second crankpin; a first arm connecting the first crankpin to the journal; a second arm connecting the second crankpin to the journal; a first pipe extending away from the first crank pin toward the journal and leading onto the surface of the first crankpin on the transverse median plane thereof, and substantially passing to the center of the median plane of the second arm; and a second conduit extending away from the second crankpin toward the journal and leading onto the surface of the second crankpin on the transverse median plane thereof, and substantially passing to the center of the median plane of the second arm, characterized in that the shape of the crankshaft is such that it cannot also comprise a diametric pipe within the transverse median plane of the journal fluidly adjoining the first pipe and the second pipe, and the crankshaft comprises a third non-diametric pipe within the transverse median plan of the journal fluidly connecting the first pipe and the second pipe.
摘要翻译： 本发明涉及一种曲轴，其至少包括：轴颈; 第一个曲柄销; 第二曲柄销; 连接第一曲柄销到轴颈的第一臂; 将所述第二曲柄销连接到所述轴颈的第二臂; 第一管道，其从第一曲柄销朝向轴颈延伸，并且在第一曲柄销的横向中间平面上引导到第一曲柄销的表面，并且基本上通过第二臂的中间平面的中心; 以及第二导管，其远离所述第二曲柄销朝向所述轴颈延伸并且在所述第二曲柄销的横向中间平面上引导到所述第二曲柄销的表面上，并且基本上穿过所述第二臂的中间平面的中心，其特征在于， 曲轴使得其不能在流体连接第一管和第二管的轴颈的横向中间平面内包括直径管，并且曲轴包括在轴颈的横向中间平面内的第三非直径管道流体连接 第一管和第二管。
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