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公开(公告)号：US4182579A
公开(公告)日：1980-01-08
申请号：US864144
申请日：1977-12-23
CPC分类号： F16B21/18 , Y10T403/60
摘要： A retaining ring structure is adapted to be located in a circumferential groove in a first member and to engage a second member to restrain relative axial movement of said members under thrust loading. The retaining ring structure includes a ring portion of L-shaped cross section having a leg portion and a foot portion. The free end of the leg portion fits into the groove and the foot portion engages a surface of the member adjacent the groove. A surface of the leg portion is adapted to contact the sidewall of the groove and is undercut so as to avoid contact with the edge of the groove. One specific retaining ring structure includes a pair of sector ring portions in nested relation with the outer apex of the L-shape of one of the sector ring portions located at the inner apex of the L-shape of the other sector ring portion.
摘要翻译： 保持环结构适于位于第一构件中的圆周凹槽中并且与第二构件接合以限制所述构件在推力加载下的相对轴向运动。 保持环结构包括具有腿部和脚部的L形截面的环部。 腿部的自由端装配到槽中，并且脚部接合邻近凹槽的构件的表面。 脚部的表面适于接触凹槽的侧壁并且被切削以避免与凹槽的边缘接触。 一个具体的保持环结构包括与位于另一个扇形环部分的L形的内顶点处的扇形环部分中的一个的L形的外顶点嵌套关系的一对扇形环部分。
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公开(公告)号：US4248440A
公开(公告)日：1981-02-03
申请号：US74735
申请日：1979-09-12
申请人： Harold E. McCormick
发明人： Harold E. McCormick
CPC分类号： C04B35/117 , C04B35/478 , C23C4/11 , F16J9/26 , C04B2235/3225 , C04B2235/3232
摘要： Disclosed is a coating for bearing faces of piston rings and a powder composition for plasma spray application of such coating. The plasma spray powder comprises 94%-98% by weight of aluminum oxide and titanium oxide and 2%-6% by weight of yttrium oxide. The inclusion of yttrium oxide in the aluminum oxide-titanium oxide coating composition reduces the tendency of the coating to blistering and spalling which resulting in coating loss during use of the ring. Intra-coating delamination is substantially reduced or eliminated.
摘要翻译： 公开了用于活塞环的轴承面的涂层和用于等离子体喷涂这种涂层的粉末组合物。 等离子体喷涂粉末包含94重量％-98重量％的氧化铝和氧化钛和2重量％-6重量％的氧化钇。 在氧化铝 - 氧化钛涂层组合物中包含氧化钇降低了涂层在起泡和剥落的趋势，导致环的使用期间涂层损失。 涂层间分层显着减少或消除。
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公开(公告)号：US4115959A
公开(公告)日：1978-09-26
申请号：US763831
申请日：1977-01-31
申请人： Harold E. McCormick
发明人： Harold E. McCormick
IPC分类号： F02F5/00 , B23P15/06 , B24B1/00 , B24B19/11 , C04B14/32 , C23C4/00 , C23C4/02 , C23C4/04 , C23C4/10 , C23C4/12 , C23F15/00 , F16J9/26 , B24D3/24
CPC分类号： C23C4/10 , C23C4/11 , Y10S277/924
摘要： The life of silicon carbide grinding wheels is increased when operating against plasma applied coatings of mixed oxides of refractory metals on a cast iron substrate. The invention contemplates the inclusion of certain metal fluorides in the refractory metal oxide powder prior to plasma application, coating by plasma spray, and then grinding with a silicon carbide grinding wheel with reduction in or elimination of in-cycle dressing of the wheel.
摘要翻译： 当对铸铁基材上难熔金属的混合氧化物的等离子体涂覆涂层进行操作时，碳化硅砂轮的寿命增加。 本发明考虑在等离子体施加之前将某些金属氟化物包含在难熔金属氧化物粉末中，通过等离子体喷涂进行涂覆，然后用碳化硅砂轮研磨，同时减少或消除轮周期修整。
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公开(公告)号：US4032672A
公开(公告)日：1977-06-28
申请号：US602110
申请日：1975-08-05
申请人： Harold E. McCormick
发明人： Harold E. McCormick
CPC分类号： B23P15/08 , C23C4/01 , Y10T29/49888 , Y10T29/49982 , Y10T29/49986
摘要： A method for coating the faces of parts having faces and backs, includes assembling the parts so that the faces and backs thereof define two opposed coating surfaces. The parts may be staggered, and alternate parts have their faces disposed in opposite directions, with faces recessed with respect to the backs of the adjacent parts. Both coating surfaces therefore comprise a plurality of recessed part faces interspersed with part backs.A hardenable coating such as a molten hard facing material is applied to both of the coating surfaces and allowed to harden. After hardening, the surfaces are ground to reduce the thickness of the hardened coating sufficiently to expose the part backs, leaving a desired residual layer of coating adhered to the recessed part faces. The parts are then disassembled to provide a plurality of separate parts, each having a coating on the face thereof.
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公开(公告)号：US4024617A
公开(公告)日：1977-05-24
申请号：US338457
申请日：1973-03-06
申请人： Harold E. McCormick
发明人： Harold E. McCormick
CPC分类号： F01C19/005 , C23C4/08 , C23C4/18 , Y10T29/49297
摘要： A method of applying a refractory coating or facing to a ferrous metal substrate that is in the form of a finished article, such as that of a piston seal or the like, and that has sections of such small dimensions as to be easily distorted by heat. The method includes an induction heating step carried out under conditions so controlled as to effect a bond of greatly improved strength in shear between the coating and substrate without, however, causing heat distortion of even the small dimensioned sections beyond functionally permissible limits. An agent capable of effecting diffusion bonding, such as free nickel, or an alloy or mixtures containing free nickel or an equivalent bonding element, is made available at the interface in the coating and substrate to facilitate the obtaining of such greatly improved bond as a result of the induction heating step. The bond obtained is in excess of 10,000 psi in shear and generally equal to or in excess of the tensile strength of the refractory coating.
摘要翻译： 将诸如活塞密封件等的成品的形式的耐火涂层或面板施加到黑色金属基底上的方法，并且具有如此小的尺寸的部分，以便容易地被热变形 。 该方法包括在被控制的条件下进行的感应加热步骤，以实现涂层和基材之间剪切强度大大提高的粘结，而不会导致即使小尺寸部分的热变形超出功能允许的极限。 可以在涂层和基材的界面处获得能够实现扩散粘合的试剂，例如游离镍，或含有游离镍或等效键合元素的合金或混合物，从而有助于获得如此大大改善的粘结 的感应加热步骤。 所获得的粘合剂的剪切力超过10,000psi，并且通常等于或超过耐火涂层的拉伸强度。
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6.发明申请Opposed-piston cylinder bore constructions with solid lubrication in the top ring reversal zones 有权反向活塞缸孔结构在顶环反转区域具有固体润滑公开(公告)号：US20130199503A1
公开(公告)日：2013-08-08
申请号：US13385127
申请日：2012-02-02
摘要： A cylinder for an opposed-piston engine is equipped with a cylinder bore that provides solid lubrication of bore/piston surface interfaces in top ring reversal zones of the cylinder bore.
摘要翻译： 用于相对活塞发动机的气缸配备有气缸孔，其在气缸孔的顶环反转区域中提供孔/活塞表面界面的固体润滑。
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公开(公告)号：USRE31005E
公开(公告)日：1982-08-03
申请号：US98928
申请日：1979-11-30
摘要： A plastic ring for internal combustion engine pistons. In a preferred embodiment, the ring has a flat outer diameter adapted to engage the inner diameter of a compression piston ring and an inner diameter adapted to engage the backwall of the ring groove. An axial groove slightly spaced from the outer diameter extends into the ring from the top thereof, whereby combustion gases will expand the ring so that it acts as a circumferential expander for the compression ring while preventing blowby of gases through the ring groove. In another modification, the ring is used with its outer diameter acting against the cylinder wall.
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公开(公告)号：US4085490A
公开(公告)日：1978-04-25
申请号：US672751
申请日：1976-04-01
CPC分类号： F16J9/203 , B23P15/06 , F16J9/063 , Y10S277/924 , Y10S29/032 , Y10T29/49279 , Y10T29/49281
摘要： A rolled steel oil control piston ring for internal combustion engines is of generally U-shaped cross section with a pair of opposed rigid sidewalls projecting inwardly of the ring from a central peripheral wall thereof. A pair of flat-faced solid scraper rims formed by closed pleats rolled from the peripheral wall extend outwardly of the ring. The ring is made by rolling flat strip steel stock through a series of profiled rollers by guiding the edges of the stock without deforming the same, while taking up dimensional variations of the stock by displacement of the central portion of the strip. Pleats are formed in the central portion by the profiled rollers and the pleats are closed on themselves to provide the solid scraper rims. An extrusion-like profile-reducing rolling step provides dimensional accuracy to the finished strip which is then punched to provide the vent openings in the peripheral wall, and coiled and cut to form individual piston rings.
摘要翻译： 用于内燃机的轧制钢油控制活塞环通常为U形横截面，其一对相对的刚性侧壁从环的中心周向壁向内突出。 由周壁滚动的封闭褶皱形成的一对平面固体刮板边缘从环向外延伸。 该环是通过一系列成型辊通过引导坯料的边缘而不使其变形而通过滚动平钢带钢而制成的，同时通过带的中心部分的位移来占据坯料的尺寸变化。 褶皱通过成形辊在中心部分形成，并且褶皱本身封闭以提供固体刮板边缘。 挤出型轮廓降低轧制步骤为成品条提供尺寸精度，然后冲压成型，以在周壁中提供通风口，并且卷绕和切割以形成单个活塞环。
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公开(公告)号：US3947269A
公开(公告)日：1976-03-30
申请号：US283330
申请日：1972-08-24
CPC分类号： C22C29/00 , C23C4/06 , C23C4/067 , Y10T428/12667 , Y10T428/1284
摘要： This invention relates to an alloy useful as a hard facing material. The alloy comprises a matrix such as a nickel-chromium matrix containing a separate interstitially boron-hardened tungsten phase. The alloy is used as a facing or coating for a number of base materials, and in particular as a piston ring facing. The invention is also concerned with a method of making said alloy by utilizing a plasma jet spray technique.
摘要翻译： 本发明涉及可用作硬质材料的合金。 该合金包括基体，例如含有单独的间隙硼固化的钨相的镍铬基体。 该合金用作许多基材的面层或涂层，特别是作为活塞环面对。 本发明还涉及通过利用等离子体喷射技术制造所述合金的方法。
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10.发明授权Opposed-piston cylinder bore constructions with solid lubrication in the top ring reversal zones 有权反向活塞缸孔结构在顶环反转区域具有固体润滑公开(公告)号：US08851029B2
公开(公告)日：2014-10-07
申请号：US13385127
申请日：2012-02-02
摘要： A cylinder for an opposed-piston engine is equipped with a cylinder bore that provides solid lubrication of bore/piston surface interfaces in top ring reversal zones of the cylinder bore.
摘要翻译： 用于相对活塞发动机的气缸配备有气缸孔，其在气缸孔的顶环反转区域中提供孔/活塞表面界面的固体润滑。
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