公开(公告)号：US5430938A

公开(公告)日：1995-07-11

申请号：US213399

申请日：1994-03-14

申请人： V. Durga N. Rao ,  Daniel M. Kabat

发明人： V. Durga N. Rao ,  Daniel M. Kabat

IPC分类号： F16J9/16 ,  F16J9/22 ,  B23P15/00

CPC分类号： F16J9/16 ,  F16J9/22 ,  Y10T29/49256 ,  Y10T29/49263 ,  Y10T29/49281 ,  Y10T29/49284

摘要： Method of making a piston ring assembly by providing a metallic (i.e. cast aluminum) piston with a crown and an annular depending side wall; machining a stepped annular groove in the side wall having a total height of at least 4 mm (preferably having a combined total height equal to the groove height less 60 microns or less); fabricating a pair of metallic (i.e. aluminum based) split annular compression rings nestable within said groove and effective to operate together as a superimposed unit to seal against both said step and groove; coating said groove and the non-mating surfaces of said rings with solid film lubricants (i.e. graphite, BN and MoS.sub.2); and inserting said pair of coated rings into said coated groove with their split ends out of superimposed alignment. Also a method of reducing piston ring blow-by for a piston ring assembly in a cylinder bore wall of an internal combustion engine, the wall being bathed with oil drawn from a reservoir comprising providing a machined piston and split compression rings as above and reciprocatingly operating the assembly in the bore wall for carrying out engine operation whereby the rings act in unison due to friction at their mating surfaces and are free to radially adjust as a unit with little or no inhibiting friction while maintaining sealing engagement with the step of the groove, a side of the groove, and the oil film on the bore wall.

摘要翻译： 通过提供具有冠部和环形悬挂侧壁的金属（即铸铝）活塞来制造活塞环组件的方法; 在侧壁中加工具有至少4mm的总高度（优选地具有等于凹槽高度小于60微米或更小的组合总高度）的阶梯状环形凹槽; 制造可嵌套在所述槽内的一对金属（即铝基）分裂环形压缩环，并有效地作为叠加单元一起操作以密封所述台阶和凹槽; 用固体膜润滑剂（即石墨，BN和MoS2）涂覆所述环的所述槽和非配合表面; 并且将所述一对涂覆的环插入所述涂覆的凹槽中，其分离端部不重叠对准。 还有一种减少内燃机气缸孔壁中的活塞环组件的活塞环窜气的方法，该壁被从油箱中抽出的油沐浴，包括提供如上所述的加工活塞和分离的压缩环，并且往复操作 所述组件在所述孔壁中用于进行发动机操作，由此由于其配合表面处的摩擦而使所述环一起作用，并且在保持与所述凹槽的所述台阶的密封接合的同时，能够以很少的或没有抑制摩擦力的方式自由地进行径向调节， 凹槽的一侧和孔壁上的油膜。

公开(公告)号：US5358753A

公开(公告)日：1994-10-25

申请号：US133412

申请日：1993-09-24

申请人： V. Durga N. Rao ,  Daniel M. Kabat ,  Robert A. Rose

发明人： V. Durga N. Rao ,  Daniel M. Kabat ,  Robert A. Rose

IPC分类号： C10M169/04 ,  C23C4/04 ,  B05D1/12

CPC分类号： C23C4/04 ,  Y10T29/49272 ,  Y10T428/29 ,  Y10T428/2991

摘要： A method of making an anti-friction coating on a metal surface subject to sliding wear, including the steps of: forming an encapsulated powder having grains made of a core of solid lubricants including at least graphite and MoS.sub.2 (others may include BN, NaF, LiF, CaF.sub.2, and WS.sub.2), and a thin shell of fusable soft metal such as Ni, Co, Fe, Zn, Sn, Mg, or Cu; plasma spraying the powder onto a light metal surface, such as a cylinder bore wall of an internal combustion engine, to form a coating; and finish-smoothing the coating to a uniform thickness of about 25-175 microns. Some core particles may be hard, wear-resistant particles such as SiC, NiCrAl, FeMn, FeCrAl, FeWNiVCr, NiCrMoVW, FeCrMoWV, CoFeNiCrMoWV, NiCrMoV, and CoMoCrVW.

摘要翻译： 一种在具有滑动磨损的金属表面上制造抗摩擦涂层的方法，包括以下步骤：形成具有由至少包括石墨和MoS 2的固体润滑剂芯制成的颗粒的包封粉末（其它可以包括BN，NaF， LiF，CaF 2和WS 2），以及诸如Ni，Co，Fe，Zn，Sn，Mg或Cu之类的易熔软金属薄壳; 将粉末等离子体喷涂到诸如内燃机的汽缸孔壁的轻金属表面上以形成涂层; 并将涂层整理平整至约25-175微米的均匀厚度。 一些核心颗粒可以是硬的耐磨颗粒，例如SiC，NiCrAl，FeMn，FeCrAl，FeWNiVCr，NiCrMoVW，FeCrMoWV，CoFeNiCrMoWV，NiCrMoV和CoMoCrVW。

公开(公告)号：US5363821A

公开(公告)日：1994-11-15

申请号：US88686

申请日：1993-07-06

申请人： V. Durga N. Rao ,  Daniel M. Kabat ,  Brian M. Lizotte

发明人： V. Durga N. Rao ,  Daniel M. Kabat ,  Brian M. Lizotte

IPC分类号： F02F1/00 ,  C10M111/04 ,  C10M169/04 ,  C23C4/04 ,  F02B1/04 ,  F02B51/02 ,  F02B77/02 ,  F16J10/00 ,  F16N15/00 ,  F22B5/00

CPC分类号： F16N15/00 ,  C10M111/04 ,  C23C4/04 ,  F02B77/02 ,  C10M2201/00 ,  C10M2201/003 ,  C10M2201/0403 ,  C10M2201/041 ,  C10M2201/042 ,  C10M2201/0433 ,  C10M2201/053 ,  C10M2201/0603 ,  C10M2201/061 ,  C10M2201/0613 ,  C10M2201/0623 ,  C10M2201/0653 ,  C10M2201/066 ,  C10M2201/0663 ,  C10M2201/0803 ,  C10M2201/0853 ,  C10M2201/0863 ,  C10M2201/0873 ,  C10M2201/1006 ,  C10M2201/1023 ,  C10M2201/1033 ,  C10M2201/1053 ,  C10M2201/123 ,  C10M2201/16 ,  C10M2201/18 ,  C10M2209/00 ,  C10M2209/02 ,  C10M2209/10 ,  C10M2209/1003 ,  C10M2209/101 ,  C10N2240/02 ,  F02B1/04 ,  F02B51/02 ,  Y02T10/126 ,  Y10T29/49272

摘要： A solid film lubricant system for protecting metal wear interfaces subject to high temperatures and wet lubrications, comprising an oil-attracting solid lubricant mixture with at least two elements selected from the group of graphite, MoS.sub.2 and BN; a support (i.e., hard lands or hard sublayer) for the mixture to loads of at least 10 psi at temperatures of 600.degree.-800.degree. F. while being thermally stable; a thermally stable thermoset polymer matrix adhering the mixture to the support or the wear surface, the polymer having inherent hydrocarbon chemical attraction to form a tenacious oil film of the lubricating oil on the wearing surface. A method of making anti-friction coated surfaces comprising providing a light metal based cylinder surface (i.e., metal base or alloys of aluminum, titanium, or magnesium); exposing nonoxidized metal of the surface; applying a high elastic modulus load-supporting metal layer onto at least portions of the light metal cylinder surface; and simultaneously distributing a solvent-based solid film lubricant mixture and thermoset polymer onto at least portions of the layer at about room temperature to form a coating of desired thickness. An engine block with one or more anti-friction coated cylinder bore surfaces, comprising a hard, load-supporting face on the bore surface; and a coating on the face comprised of an oil-attracting solid lubricant mixture and a thermoset polymer that supports loads of at least 10 psi at temperatures of 600.degree.-800.degree. F. and is stable at such temperatures.

摘要翻译： 一种用于保护经受高温和湿润润滑的金属磨损界面的固体膜润滑剂系统，包括具有选自石墨MoS 2和BN中的至少两种元素的吸油固体润滑剂混合物; 用于混合物的载体（即硬土或硬亚层）在600-800°F的温度下的载荷至少为10psi，同时热稳定; 将该混合物粘附到载体或耐磨表面上的热稳定的热固性聚合物基体，该聚合物具有固有的碳氢化合物化学吸引力，以在磨损表面上形成润滑油的坚固的油膜。 一种制造抗摩擦涂层表面的方法，包括提供基于轻金属的圆柱体表面（即，金属基体或铝，钛或镁的合金）; 暴露表面的非氧化金属; 在轻金属圆筒表面的至少一部分上施加高弹性模量负载金属层; 并且在大约室温下同时将溶剂基固体膜润滑剂混合物和热固性聚合物分布到该层的至少部分上以形成所需厚度的涂层。 具有一个或多个抗摩擦涂覆的气缸孔表面的发动机缸体，包括孔表面上的硬的负载支撑面; 以及由吸油固体润滑剂混合物和热固性聚合物组成的涂层，其在600-800°F的温度下支持至少10psi的载荷，并且在这样的温度下是稳定的。

公开(公告)号：US5302450A

公开(公告)日：1994-04-12

申请号：US88486

申请日：1993-07-06

申请人： V. Durga N. Rao ,  Daniel M. Kabat ,  Robert A. Rose

发明人： V. Durga N. Rao ,  Daniel M. Kabat ,  Robert A. Rose

IPC分类号： C10M169/04 ,  C23C4/04 ,  B32B19/00

CPC分类号： C23C4/04 ,  Y10T29/49272 ,  Y10T428/29 ,  Y10T428/2991

摘要： A thermally sprayable powder having grains comprising: a core of solid lubricant particles comprised of at least graphite and MoS.sub.2 (others may include Bn, NaF, LiF, CaF.sub.2, and WS.sub.2); and a thin, soft metal shell (Ni, Co, Fe, Zn, Sn, Mg, or Cu) encapsulating such core. Some core particles may also be hard, wear-resistant particles from the group consisting of SiC, NiCrAl, FeMn, FeCrAl, FeWNiVCr, NiCrMoVW, FeCrMoWV, CoFeNiCrMoWV, NiCrMoV, and CoMoCrVW.

摘要翻译： 一种具有颗粒的可热喷涂粉末，包括：由至少石墨和MoS2组成的固体润滑剂颗粒芯（其它可包括Bn，NaF，LiF，CaF 2和WS 2）; 以及封装这种芯的薄的软金属壳（Ni，Co，Fe，Zn，Sn，Mg或Cu）。 一些核心颗粒也可以是由SiC，NiCrAl，FeMn，FeCrAl，FeWNiVCr，NiCrMoVW，FeCrMoWV，CoFeNiCrMoWV，NiCrMoV和CoMoCrVW组成的组中的硬的耐磨颗粒。

公开(公告)号：US5211143A

公开(公告)日：1993-05-18

申请号：US905691

申请日：1992-10-16

申请人： Dominic Fontichiaro ,  Daniel M. Kabat

发明人： Dominic Fontichiaro ,  Daniel M. Kabat

IPC分类号： F01L1/14 ,  F01L1/18 ,  F01L13/00

CPC分类号： F01L1/14 ,  F01L1/143 ,  F01L1/185 ,  F01L13/0042 ,  F01L2105/00 ,  F01L2107/00 ,  F02B2275/20

摘要： An adjustable valve system for an engine includes an axially shiftable camshaft with a plurality of cam lobes for actuating engine valves, with at least one of the lobes having a profile which varies as a function of the axial position of the lobe and camshaft. A valve lifter for use with a camshaft according to the invention includes a concave arcuate surface with a matching convex arcuate surface on a camshaft rubbing block pivotably mounted to the lifter. The lifter and rubbing block have a matching keyway and spline formed so that the rubbing block may accommodate changes in the cam position by pivoting about an imaginary axis which is perpendicular to the axis of the camshaft while being restrained by the spline and keyway from rotating about an axis parallel to the camshaft.

摘要翻译： 用于发动机的可调节阀系统包括具有用于致动发动机阀的多个凸轮凸角的可轴向移动的凸轮轴，其中至少一个凸角具有根据凸角和凸轮轴的轴向位置而变化的轮廓。 根据本发明的与凸轮轴一起使用的气门挺杆包括在可枢转地安装到升降器的凸轮轴摩擦块上具有匹配的凸形弓形表面的凹形弧形表面。 升降器和摩擦块具有匹配的键槽和花键，使得摩擦块可以通过围绕垂直于凸轮轴的轴线的假想轴枢转来适应凸轮位置的变化，同时被花键和键槽约束，从而围绕 平行于凸轮轴的轴线。