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公开(公告)号：US3890067A
公开(公告)日：1975-06-17
申请号：US39137573
申请日：1973-08-24
Applicant: FORD MOTOR CO
Inventor： RAO VEMULAPALLI D N , TELANG YESHWANT P
CPC classification number: F01C19/005 , F01C19/02
Abstract: A sealing assembly is disclosed for use in providing a dynamic seal between a rotor and the surrounding housing of a rotary internal combustion engine. An apex seal of considerable height is arranged to fit within a first receptacle in at least one location along the periphery of the rotor; the apex seal has a transverse opening separating the body of the seal into first and second support portions. A second receptacle is defined about the ends of the first receptacle for receiving a corner seal adapted to engage the side housing. The seals are comprised of a material having volatile impurities. Resilient expanded silicone sponge material is utilized to either or both urge the apex seals and corner seals to their respective engaging surfaces; mechanical springs may be embedded in the sponge material for assisting the uniform nature of the resilient force of said sponge material. In one or both of said apex and corner seals, grooves are defined for receiving an embedment comprised of a friction smearable fluxing agent in the form of polyarylsulfone.
Abstract translation: 公开了一种用于在转子和旋转内燃机的周围壳体之间提供动态密封的密封组件。 相当高度的顶点密封件布置成沿着转子周边的至少一个位置装配在第一容器内; 顶端密封件具有将密封件的主体分成第一和第二支撑部分的横向开口。 围绕第一容器的端部限定第二容器，用于接收适于接合侧壳体的角部密封件。 密封件由具有挥发性杂质的材料构成。 弹性膨胀的硅氧烷海绵材料用于将顶点密封件和角密封件推动到它们各自的接合表面; 机械弹簧可以嵌入海绵材料中，以帮助所述海绵材料的弹力的均匀性。 在所述顶点和角部密封件中的一个或两个中，限定凹槽以接收包含聚芳基砜形式的可摩擦涂抹助熔剂的嵌入物。
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2.发明授权Process for coating the rubbing surfaces of the seal of the gas turbine regenerator 失效用于涂覆燃气轮机再生器的密封件的摩擦表面的方法
公开(公告)号：US3930071A
公开(公告)日：1975-12-30
申请号：US41589773
申请日：1973-11-14
Applicant: FORD MOTOR CO
Inventor： RAO V DURGA NAGESWAR , TELANG YESHWANT P
CPC classification number: B05D5/08 , B05D3/0209 , B05D3/0254 , B05D3/12 , B05D2350/65 , F28D19/047
Abstract: A method for preparing and applying a thermoplastic resin base coating to the surfaces of a seal assembly for a rotary regenerator in a gas turbine engine, the coating comprising a high-temperature, thermoplastic resin filled with a lubricating material, said method including preparation of a bond coating on the surface of a seal assembly shoe portion, preparation of coating material having a percentage of graphite and a percentage of boron nitride, dissolving the coating material in a suitable solvent to form a paste which may be applied to a seal shoe portion of the seal assembly used with the ceramic rotary regenerator matrix, curing the coating material and finish grinding the seal assembly following curing whereby the seal assembly is conditioned for operation with reduced friction and improved sealing characteristics at the elevated temperatures that are characteristic of gas turbine regenerator installations.
Abstract translation: 一种将热塑性树脂基底涂层制备和应用于燃气轮机的旋转式再生器的密封组件的表面的方法，所述涂层包括填充有润滑材料的高温热塑性树脂，所述方法包括制备 在密封组件靴部分的表面上的粘合涂层，具有一定百分比的石墨和氮化硼百分比的涂料的制备，将涂料溶解在合适的溶剂中以形成可以施加到密封靴部分 与陶瓷旋转式再生器基体一起使用的密封组件，固化涂层材料并在固化之后对密封组件进行精加工，由此密封组件被调节以在燃气轮机再生器装置的特征的降低的摩擦和改进的密封特性下进行操作 。
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公开(公告)号：US3890069A
公开(公告)日：1975-06-17
申请号：US37686273
申请日：1973-07-05
Applicant: FORD MOTOR CO
Inventor： TELANG YESHWANT P , UY JAMES C
CPC classification number: F02B55/00 , F01C19/005 , Y02T10/17 , Y10T29/49234
Abstract: A rotor housing for a rotary internal combustion engine is disclosed having a wear-resistant coating system characterized by high temperature hardness stability and controlled porosity to improve the lubricating characteristics of the surface-to-surface engagement with the rotary apex seals. The coating system comprises a self-fused composite of martensitic stainless steel powder and an equally hard powder consisting of a nickel-based alloy. Powder particle size is controlled to render a smoother machined surface and sub-surface porosity. An intermediate transition coating may be used consisting of a composition selected from nickel aluminide, arc sprayed nickel, molybdenum, all effective to operate as a bonding intermediate to a supporting aluminum structure. A method of producing the wear-resistant coating system for a rotor housing is disclosed, comprising preparation of an aluminum casting having a supporting epitrochoid end wall, machining a reference, embedment of thermally resistant plugs about certain openings in the end wall, removing a uniform layer of said casting end wall to a predetermined depth, soft grit blasting of the removed surface, coating of the margins about ports in the end wall with an anti-bond material flame spraying the entire end wall with a mixture of martensitic stainless steel and a nickelbased alloy, immersing said coated casting in oil for a predetermined period of time immediately after coating, and grinding off a portion of said coating to the depth of said reference.
Abstract translation: 公开了一种用于旋转内燃机的转子壳体，其具有耐磨涂层系统，其特征在于具有高温硬度稳定性和受控孔隙率，以改善与旋转三角形密封件的表面 - 表面接合的润滑特性。 涂层系统包括马氏体不锈钢粉末和由镍基合金组成的同等硬度的粉末的自熔复合材料。 控制粉末颗粒尺寸以使得更平滑的加工表面和次表面孔隙率。 可以使用中间过渡涂层，其由选自镍铝化合物，电弧喷涂镍，钼组成的组合物，均可有效地作为与支撑铝结构的结合中间体起作用。
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4.发明授权
公开(公告)号：US3918137A
公开(公告)日：1975-11-11
申请号：US46665574
申请日：1974-05-03
Applicant: FORD MOTOR CO
Inventor： TELANG YESHWANT P , UY JAMES C
CPC classification number: F01C1/22 , B23P15/00 , F01C21/104 , F04C2230/91 , F04C2270/16 , Y10T29/49234 , Y10T29/4927 , Y10T29/49984 , Y10T29/49989
Abstract: An improved wear-resistant surface preparation is used on the inner side walls of the combustion chamber of a rotary piston engine. The improvement comprises deposition of two distinct but admixed metallic powders of generally equal hardness; one of the powders contains fluxing agents which enable the deposited powders to self-sinter if deposited in a semiplastic condition. The powders are deposited on a previously undercut cast iron side-housing. The resulting coating composition is characterized by minimum hardness value of Rc 30 at elevated operating temperatures of 400*F. The composition retains a stable hardness at elevated temperature levels up to 1100*F. The coating may have a porosity of 3-9%, but particle size is controlled to limit the porosity to 5% which is compatible with lubricating requirements of a rotary engine. The coating composition is deposited across the entire area circumscribed by the path of the outer most side point of the apex seals carried by the rotary piston; the path is substantially commensurate or approaches the entire shape of the epitrochoid chamber. The coating is compatible with the composition of the rotor side seals, oil seals and corner seals bearing thereagainst. The rotor side seals are comprised of cast iron, the oil seals are cast iron coated with limited chromium, the corner seals are prepared from cast iron, and the apex seals are strips of metal coated with an alloy of iron and titanium carbide with graphite. A method is disclosed comprising: (1) machining a cast side housing structure to a depth sufficient to accommodate a slightly oversized finish coating. The cast structure is undercut, grit blasted and preheated to 200*F., (2) a coating of admixed martensitic stainless steel and an equally hard nickel-based alloy is flame sprayed upon the machined area including approximately three-eights of an inch margin beyond the undercut area, the spraying being conducted by rotating the surface to be sprayed along with radial and rotative movement of the spray gun arranged to direct the spray perpendicular to the surface, (3) soaking the flame sprayed coating immediately after deposition with oil, and (4) grinding the surface finish to a predetermined reference thickness.
Abstract translation: 在旋转活塞式发动机的燃烧室的内侧壁上使用改进的耐磨表面处理。 改进包括沉积两种不同但混合的金属粉末，其硬度大致相同; 粉末中的一种包含助熔剂，其能够使沉积的粉末如果以半成品状态沉积而自烧结。 粉末沉积在先前底切的铸铁侧壳上。 所得涂料组合物的特征在于在400°F的升高的操作温度下Rc 30的最小硬度值。该组合物在高达1100°F的高温水平下保持稳定的硬度。涂层可具有3-9％的孔隙率， 但是控制了颗粒尺寸以将孔隙率限制为与旋转发动机的润滑要求相容的5％。 涂层组合物沉积在由旋转活塞承载的顶点密封件的最外侧点的路径外围的整个区域上; 该路径基本相当或接近该外旋体室的整个形状。 涂层与转子侧密封件，油封和角接头密封件的组成相兼容。 转子侧密封件由铸铁组成，油封为镀有限定铬的铸铁，角钢密封件由铸铁制成，顶端密封件为镀有铁和碳化钛与石墨合金的金属带。
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公开(公告)号：US3910734A
公开(公告)日：1975-10-07
申请号：US39013373
申请日：1973-08-20
Applicant: FORD MOTOR CO
Inventor： TELANG YESHWANT P
CPC classification number: F01C19/005 , C23C4/06 , C23C4/067 , C23C4/137 , Y10S428/926 , Y10T428/12063 , Y10T428/12736 , Y10T428/12986
Abstract: An apex seal construction in a rotary internal combustion engine is disclosed as well as a method of making same. The apex seal is carried within a slot of the rotor and is urged by gas pressure for maintaining sealing contact between a side of said slot and the rotor housing. The apex seal has a supporting body formed of a light weight metallic material, such as aluminum, and a wearresistant coating applied by plasma jet as a substantial envelope thereabout, the combined heat of the plasma as well as the force of impact of the jet combine to provide an improved adherency between the coating and light weight body. Immediately subsequent to plasma jet deposition, the coated apex seal is subjected to a quenching medium to develop a hardness of at least 40 Rc, uniformly throughout the bulk of the material the coating having a controlled porosity of 2-5% and a thickness in the range of 1525 mils.
Abstract translation: 公开了旋转式内燃机中的顶点密封结构以及其制造方法。 顶端密封件承载在转子的槽内，并被气体压力推动以保持所述槽的一侧和转子壳体之间的密封接触。 顶点密封件具有由诸如铝的重量轻的金属材料形成的支撑体，以及通过等离子体射流施加的耐磨涂层作为其周围的实质封装，等离子体的组合热以及冲击力 喷射组合以提供涂层和轻量体之间的改善的粘着力。 在等离子体喷射沉积之后，涂覆的顶点密封件经受淬火介质以在整个本体材料中均匀地形成至少40Rc的硬度，该涂层的控制孔隙率为2-5％，厚度为 范围15-25 mils。
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Patent Agency Ranking
公开(公告)号：US3679459A
公开(公告)日：1972-07-25
申请号：US3679459D
申请日：1971-04-07
Applicant: FORD MOTOR CO
Inventor： RAO VEMULAPALLI D , TELANG YESHWANT P , WHITE JERRY E
CPC classification number: C23C4/02 , C23C4/04 , F16C33/043 , F16J15/3496 , F28D19/047
Abstract: A SEAL MEMBER FOR RUBBING AGAINST A ROTATING CERAMIC REGENERATOR HAS A SURFACE LAYER CONSISTING ESSENTIALLY OF CALCIUM FLUORIDE, ZINC OXIDE AND STANNIC OXIDE. THE SURFACE LAYER IS SUPPORTED ON A METAL SUBSTRATE AND A BONDING LAYER OF NICKEL ALUMINIDE CAN BE APPLIED BETWEEN THE SUBSTRATE AND THE SURFACE LAYER. THE SURFACE LAYER HAS SURPRISINGLY LOW FRICTION AND WEAR AND EXCELLENT RESISTANCE TO SALT ATTACK WHEN OPERATIONG AT TEMPERATURES OF ABOUT 900-1600*F.
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7.发明授权
公开(公告)号：US3888746A
公开(公告)日：1975-06-10
申请号：US43097474
申请日：1974-01-04
Applicant: FORD MOTOR CO
Inventor： UY JAMES C , TELANG YESHWANT P
CPC classification number: F01C21/106 , C25D5/44 , Y10T29/49234
Abstract: A method (and resulting product) is disclosed for making rotor housings useful in a rotary internal combustion engine. The housing is preferably sand cast; the internal epitrochoid surface is flame-spray coated with a thin layer of nickel-aluminide, flame-spray coated with a thicker layer of plain carbon steel, and then plated with chromium. The resulting casting-coating composite provides enhanced wearability, increased dimensional stability, and reduced internal stress of the coatings.
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公开(公告)号：US3860367A
公开(公告)日：1975-01-14
申请号：US39137673
申请日：1973-08-24
Applicant: FORD MOTOR CO
Inventor： TELANG YESHWANT P , UY JAMES C
CPC classification number: F02B55/08
Abstract: A side wall coating system is disclosed for use in a rotary internal combustion engine having a narrow chamber bounded by a pair of flat side walls and an epitrochoidally-shaped end wall joining the side walls. A rotor is mounted for planetary movement in the chamber and in close spacing with each of said side walls, the rotor carries annular seals sliding against said side walls to define a shifting oil chamber in the spacing between the rotor and each of said side walls. The coating system comprises a selffused particle coating across the entire area of each of said side walls and is comprised of an admixture of stainless steel and nickel-based alloy powders of generally equal hardness. A resin is impregnated in said coating effective to close the pores substantially below the surface of said coating but the pores adjacent the surface are devoid of such resin as a result of decomposition under engine operating conditions. The decomposition of the resin insures limited porosity for retention of a controlled amount of oil to facilitate an oil film between the scraping seals and the side housing wall and also assure a deposit of carbon acting as a dry lubricant to further facilitate the metallic contact therebetween.
Abstract translation: 公开了一种用于旋转内燃机的侧壁涂覆系统，其具有由一对平坦侧壁和连接侧壁的外旋形端壁限定的狭窄室。 转子安装成用于在腔室中行星运动并且与每个所述侧壁紧密地间隔，转子承载滑动抵靠所述侧壁的环形密封件，以在转子和每个所述侧壁之间的间隔中限定换档油室。 涂层系统包括穿过每个所述侧壁的整个区域的自熔融颗粒涂层，并且由不锈钢和基本相等硬度的镍基合金粉末的混合物组成。 在所述涂层中浸渍树脂，其有效地封闭基本上在所述涂层表面下方的孔，但邻近表面的孔没有由于在发动机操作条件下的分解而导致的这种树脂。 树脂的分解确保有限的孔隙率以保持受控量的油，以便于刮擦密封件和侧壳体壁之间的油膜，并且还确保作为干润滑剂的碳沉积物以进一步促进其间的金属接触。
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9.发明授权
公开(公告)号：US3659861A
公开(公告)日：1972-05-02
申请号：US3659861D
申请日：1970-07-06
Applicant: FORD MOTOR CO
Inventor： RAO VEMULAPALLI D , TELANG YESHWANT P
CPC classification number: F28D19/047
Abstract: Particles having a core of a glazing material such as calcium fluoride surrounded by a shell of a metal that oxidizes at operating temperature are sprayed on a substrate to form a rubbing seal for a ceramic regenerator. The oxide of the metal forming these shells is non abradable to the ceramic regenerator. During engine operation the shell oxidizes and wears to expose appropriate amounts of the glazing material.
Abstract translation: 具有由操作温度下氧化的金属壳包围的玻璃材料如氟化钙的颗粒被喷涂在基板上，以形成陶瓷再生器的摩擦密封。 形成这些壳体的金属的氧化物对陶瓷再生器是不可磨损的。 在发动机运行期间，壳体氧化并磨损以暴露适量的玻璃材料。
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公开(公告)号：US2920955A
公开(公告)日：1960-01-12
申请号：US70837758
申请日：1958-01-13
Applicant: FORD MOTOR CO
Inventor： GOERING WILLIAM A , TELANG YESHWANT P , ZACKAY VICTOR F
IPC: C22C33/00
CPC classification number: C22C33/00
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