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1.发明授权公开(公告)号：US10927959B2
公开(公告)日：2021-02-23
申请号：US16287708
申请日：2019-02-27
申请人： Caterpillar Inc.
摘要： A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical, extending along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body, projecting radially in a circumscribing manner from the body. The seal flange includes a sealing face having a sealing band for sealing contact with a mating seal ring. A layer of coating composition formulated to help increase the corrosion resistance of the seal ring is applied to at least the body. A mask is applied to the seal ring to cover at least a portion of the seal ring having the layer of coating composition applied thereto such that the sealing band remains exposed. The sealing band is polished by an isotropic finishing process. The mask is removed after the sealing band is isotropically polished.
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2.发明申请公开(公告)号：US20140291060A1
公开(公告)日：2014-10-02
申请号：US13855370
申请日：2013-04-02
申请人： CATERPILLAR, INC.
发明人： Bao Feng , M. Brad Beardsley
IPC分类号： F16H57/021 , F16C32/06
CPC分类号： F16H57/021 , B60K17/046 , F16C17/02 , F16C17/18 , F16C32/0629 , F16C33/043 , F16C2202/04 , F16C2223/02 , F16C2240/46 , F16C2240/54 , F16C2240/60 , F16C2361/61 , F16H2057/085
摘要： A bearing system includes a sleeve bearing supported on a shaft and a gear supported on the sleeve bearing. The shaft has an outer diameter shaft surface, the sleeve bearing has an inner diameter bearing surface and an outer diameter bearing surface, and the gear has a gear bore surface. At least one of the outer diameter shaft surface, the inner diameter bearing surface, the outer diameter bearing surface, and the gear bore surface includes an isotropic surface finish and a hard thin film over the isotropic surface finish. During a break-in period of operation of the bearing system, the hard thin film over the isotropic surface finish breaks in a counter surface of the bearing system to extend a hydrodynamic lubrication period of operation of the bearing system.
摘要翻译： 轴承系统包括支撑在轴上的套筒轴承和支撑在套筒轴承上的齿轮。 轴具有外径轴表面，套筒轴承具有内径支承表面和外径轴承表面，齿轮具有齿轮孔表面。 外径轴表面，内径轴承表面，外径轴承表面和齿轮孔表面中的至少一个包括各向同性表面光洁度和各向同性表面光洁度上的硬质薄膜。 在轴承系统的运转期间，各向同性表面光洁度的硬质薄膜在轴承系统的相对表面中断，从而延伸了轴承系统的流体动力润滑时间。
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公开(公告)号：US11149857B2
公开(公告)日：2021-10-19
申请号：US17120383
申请日：2020-12-14
申请人： Caterpillar Inc.
摘要： A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical, extending along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body, projecting radially in a circumscribing manner from the body. The seal flange includes a sealing face having a sealing band for sealing contact with a mating seal ring. A layer of coating composition formulated to help increase the corrosion resistance of the seal ring is applied to at least the body. A mask is applied to the seal ring to cover at least a portion of the seal ring having the layer of coating composition applied thereto such that the sealing band remains exposed. The sealing band is polished by an isotropic finishing process. The mask is removed after the sealing band is isotropically polished.
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4.发明申请公开(公告)号：US20200271229A1
公开(公告)日：2020-08-27
申请号：US16287708
申请日：2019-02-27
申请人： Caterpillar Inc.
发明人： Bao Feng , Connor J. Haas , Joseph J. Every
IPC分类号： F16J15/34
摘要： A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical, extending along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body, projecting radially in a circumscribing manner from the body. The seal flange includes a sealing face having a sealing band for sealing contact with a mating seal ring. A layer of coating composition formulated to help increase the corrosion resistance of the seal ring is applied to at least the body. A mask is applied to the seal ring to cover at least a portion of the seal ring having the layer of coating composition applied thereto such that the sealing band remains exposed. The sealing band is polished by an isotropic finishing process. The mask is removed after the sealing band is isotropically polished.
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公开(公告)号：US20160280293A1
公开(公告)日：2016-09-29
申请号：US14667013
申请日：2015-03-24
申请人： Caterpillar Inc.
发明人： Bao Feng , Mark Diekevers , William Baar , Douglas Weaver , Hyung Yoon
CPC分类号： B62D55/21 , C08K2003/3009 , C08K2003/385 , C09D5/00 , C09D7/61 , C09D7/65 , C10M169/04 , C10M2201/061 , C10M2201/065 , C10M2201/066 , C10M2201/0663 , C10M2201/085 , C10M2213/062 , C10N2230/06 , C10N2250/141 , C23C22/12 , C23C22/83 , C23C24/082 , C23C28/04 , F16C17/12 , F16C33/203 , F16C33/208
摘要： During the break-in period of track assembly components, galling can occur between the components during use. The components include a pin that is received within a bushing and alternatively a sleeve bearing between the pin and the bushing depending on the load. A method to prevent or reduce galling includes applying a coating of zinc phosphate and a low-friction layer on top of the zinc phosphate. The low-friction coating can be made of WS2 (Tungsten Disulphide), BN (Boron Nitride), MoS2 (Molybdenum disulfide) or PTFE (Polytetrafluoroethylene) and deposited during a mechanical treatment.
摘要翻译： 在轨道组装部件的入场期间，使用过程中会发生磨损。 这些部件包括接收在衬套内的销，以及根据负载而在销和套管之间的套筒轴承。 防止或减少磨损的方法包括在磷酸锌的顶部涂覆磷酸锌和低摩擦层的涂层。 低摩擦涂层可以由WS2（二硫化钨），BN（氮化硼），MoS2（二硫化钼）或PTFE（聚四氟乙烯）制成，并在机械处理过程中沉积。
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公开(公告)号：US11067028B2
公开(公告)日：2021-07-20
申请号：US16248907
申请日：2019-01-16
申请人： Caterpillar Inc.
发明人： Hoisan Kim , Robert M. Campion , Steven C. Taylor , Bao Feng
摘要： A fuel injector system includes an injector body having a proximal end and a distal end, the injector body defining a nozzle having an outlet. The injector system includes a spill valve fluidly connected to the outlet and having a spill valve member movable between an open position and a closed position. The injector system includes a control valve including a control valve member movable between an open position and a closed position. The injector system includes a check valve fluidly connected to the outlet, the control valve including a check valve needle movable between an open position and a closed position. The injector system also includes an electrical monitoring circuit configured to output a signal indicative of at least one of the open position or the closed position of the spill valve member.
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公开(公告)号：US09051910B2
公开(公告)日：2015-06-09
申请号：US13755391
申请日：2013-01-31
申请人： Caterpillar, Inc.
发明人： Bao Feng , Steven C. Taylor , Lucy V. Berg , Colm M. Flannery
CPC分类号： F02M61/166 , F02M47/027 , F02M61/1886 , F02M61/1893 , F02M63/0015 , F02M63/004 , F02M63/0045 , F02M63/0077 , F02M2200/02 , F02M2200/9038 , F02M2200/9046
摘要： A valve assembly in an internal combustion engine fuel system includes a valve member movable within a valve body to contact a valve seat and block fluid communication between first and second passages. The valve seat and valve member each include a multi-layered coating having a harder metal nitride base layer and a softer metal nitride outer layer. The base layer is relatively incompliant to impacts between the valve member and the valve seat, and the outer layer is relatively compliant to the impacts and thereby deformable. Related methodology is disclosed.
摘要翻译： 内燃机燃料系统中的阀组件包括可在阀体内移动以接触阀座并阻塞第一和第二通道之间的流体连通的阀构件。 阀座和阀构件均包括具有较硬的金属氮化物基底层和较软的金属氮化物外层的多层涂层。 基础层与阀构件和阀座之间的冲击相对不相容，并且外层相对于撞击而相应地变形，从而可变形。 披露了相关的方法。
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公开(公告)号：US11118636B2
公开(公告)日：2021-09-14
申请号：US16653480
申请日：2019-10-15
申请人： Caterpillar Inc.
摘要： A transmission system includes a clutch control valve assembly having an armature for adjusting a valve, rested upon metallic slide bearings under the force of gravity. The armature includes a core material that is metallic and magnetically soft, an outer thin-film coating that is non-metallic, and a backing substrate material for supporting the outer thin-filmed coating interposed the core material and the outer thin-film coating. The backing substrate material may be case hardened material derived from the core material, such as ferritic nitrocarburized (FNC) iron. The outer thin film coating may be a diamond-like carbon (DLC) material.
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公开(公告)号：US20140209063A1
公开(公告)日：2014-07-31
申请号：US13755391
申请日：2013-01-31
申请人： CATERPILLAR, INC.
发明人： Bao Feng , Steven C. Taylor , Lucy V. Berg , Colm M. Flannery
IPC分类号： F01L3/00
CPC分类号： F02M61/166 , F02M47/027 , F02M61/1886 , F02M61/1893 , F02M63/0015 , F02M63/004 , F02M63/0045 , F02M63/0077 , F02M2200/02 , F02M2200/9038 , F02M2200/9046
摘要： A valve assembly in an internal combustion engine fuel system includes a valve member movable within a valve body to contact a valve seat and block fluid communication between first and second passages. The valve seat and valve member each include a multi-layered coating having a harder metal nitride base layer and a softer metal nitride outer layer. The base layer is relatively incompliant to impacts between the valve member and the valve seat, and the outer layer is relatively compliant to the impacts and thereby deformable. Related methodology is disclosed.
摘要翻译： 内燃机燃料系统中的阀组件包括可在阀体内移动以接触阀座并阻塞第一和第二通道之间的流体连通的阀构件。 阀座和阀构件均包括具有较硬的金属氮化物基底层和较软的金属氮化物外层的多层涂层。 基础层与阀构件和阀座之间的冲击相对不相容，并且外层相对于撞击而相应地变形，从而可变形。 披露了相关的方法。
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公开(公告)号：US20210108686A1
公开(公告)日：2021-04-15
申请号：US16653480
申请日：2019-10-15
申请人： Caterpillar Inc.
IPC分类号： F16D48/02
摘要： A transmission system includes a clutch control valve assembly having an armature for adjusting a valve, rested upon metallic slide bearings under the force of gravity. The armature includes a core material that is metallic and magnetically soft, an outer thin-film coating that is non-metallic, and a backing substrate material for supporting the outer thin-filmed coating interposed the core material and the outer thin-film coating. The backing substrate material may be case hardened material derived from the core material, such as ferritic nitrocarburized (FNC) iron. The outer thin film coating may be a diamond-like carbon (DLC) material.
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