-
公开(公告)号:US20230398600A1
公开(公告)日:2023-12-14
申请号:US17839680
申请日:2022-06-14
发明人: Liang Wang , Qigui Wang , Jianghuai Yang , Kiran Mistry , Oliver Patrick Jordan
CPC分类号: F16C3/10 , B22D19/04 , B22D25/06 , B22C9/02 , F16C2204/60 , F16C2220/06 , F16C2360/22 , F16C2202/10 , F16C2202/06
摘要: Systems and methods of making a cast steel alloy crankshaft for an internal combustion engine are provided. The method comprises providing a mold of the crankshaft. The mold has cavities to form the crankshaft. The method further comprises melting a first metallic material at between 1400 degrees Celsius (° C.) and 1600° C. to define a molten metallic material. In addition, the method further comprises feeding the molten metallic material at a riser connection angle of between 30° and 75° in the cavities of the negative sand cast mold. The method further comprises cooling the molten metallic material at a solidification time of between 5 seconds (sec) and 20 sec in the negative sand cast mold with at least one chill member to define a solidified metallic material having dimensions of the cast steel alloy crankshaft. Furthermore, the method comprises separating the solidified metallic material from the negative sand cast mold to define the cast steel alloy crankshaft.
-
公开(公告)号:US11708859B2
公开(公告)日:2023-07-25
申请号:US17551898
申请日:2021-12-15
CPC分类号: F16C33/62 , F16C19/525 , F16C33/64 , F16C2202/10 , F16C2202/30 , F16C2208/60 , F16C2208/86 , F16C2223/42 , F16C2240/60 , F16C2380/26
摘要: A method of providing electrical insulation for at least one portion of a bearing element is disclosed herein. The method includes electrostatically spraying a polymer coating to the at least one portion of the bearing element, and the polymer coating comprises a thermoset epoxy coating or a self-adhering nylon powder coating. The bearing element can be grounded during the electrostatic spraying. The method includes heating the polymer coating in an oven at a temperature less than or equal to 220° C. for a predetermined time, such that after removal from the oven, the polymer coating has a porosity of less than 10%. The coated bearing element has a resistance of at least 50 MΩ resistance under dry conditions and 10 MΩ resistance under wet conditions.
-
公开(公告)号:US20180163779A1
公开(公告)日:2018-06-14
申请号:US15579359
申请日:2016-06-16
申请人: OILES CORPORATION
CPC分类号: F16C33/203 , B60N2/16 , B60N2/1615 , B60N2/1803 , B60N2/1814 , B60N2/90 , B60N2/99 , F16C17/10 , F16C33/08 , F16C33/201 , F16C33/206 , F16C35/02 , F16C2202/10 , F16C2208/02 , F16C2208/32 , F16C2208/66 , F16C2220/20 , F16C2226/12
摘要: A sliding bearing in which generation of looseness is avoided in a frame and friction resistance between the frame multi-layer sliding bearing and a frame rotation shaft is decreased to reduce a power load at the time of adjusting a relative position and a posture by a motor or a manual operation, includes: a bearing inner peripheral surface formed by a resin layer that has a projected and recessed shape including projected contact portions to be brought into contact with a frame rotation shaft, and recessed non-contact portions to be not brought into contact with the frame rotation shaft but to form clearances.
-
公开(公告)号:US09541134B2
公开(公告)日:2017-01-10
申请号:US14385334
申请日:2012-03-15
申请人: Jeroen Wensing , Ian Peverill , Paul Meaney
发明人: Jeroen Wensing , Ian Peverill , Paul Meaney
CPC分类号: F16C33/62 , F16C19/166 , F16C33/32 , F16C33/64 , F16C2202/02 , F16C2202/04 , F16C2202/10 , F16C2204/64 , F16C2204/66 , F16C2240/76 , F16C2326/01 , F16C2361/61
摘要: A pinion bearing arrangement of a gearbox for a vehicle or aircraft, providing at least one roller bearing. At least one of the roller bearings is a ball bearing, having an inner ring and an outer ring, wherein both rings have raceways for balls being located between the rings. To ensure a sufficient lifetime of the roller bearings the invention includes that at least one of the rings is made from a ball bearing steel produced by a powder metallurgical process using a powder metallurgy component including 0.5 to 2.0 weight-% C, a maximum of 0.035 weight-% S, 3.0 to 5.0 weight-% Cr, 1.0 to 4.0 weight-% V, 1.0 to 12.0 weight-% W and 2.0 to 12.0 weight-% Mo, wherein at least one raceway has a radius (rI/O) and the balls have a diameter (DB) which fulfill the equation: rI/O/DB>0.53.
摘要翻译: 一种用于车辆或飞机的齿轮箱的小齿轮轴承装置,提供至少一个滚子轴承。 滚子轴承中的至少一个是具有内圈和外圈的滚珠轴承,其中两个环具有滚珠的滚道位于环之间。 为了确保滚子轴承的足够的寿命,本发明包括至少一个环由使用粉末冶金成分的粉末冶金方法制造的球轴承钢制成,所述粉末冶金成分包括0.5-2.0重量%C,最大0.035 重量%S,3.0至5.0重量%Cr,1.0至4.0重量%V,1.0至12.0重量%W和2.0至12.0重量%Mo,其中至少一个轨道具有半径(rI / O) 并且球具有满足以下等式的直径(DB):rI / O / DB> 0.53。
-
公开(公告)号:US09441668B2
公开(公告)日:2016-09-13
申请号:US14305763
申请日:2014-06-16
发明人: Andrew Devitt
CPC分类号: F16C32/0685 , F16C11/0666 , F16C23/04 , F16C32/0603 , F16C32/0618 , F16C32/067 , F16C32/0677 , F16C32/0692 , F16C33/748 , F16C2202/10 , F16J15/342
摘要: In order to effect a seal; a porous material which comprises one side of two opposing surfaces is used to restrict and evenly distribute externally pressurized gas, liquid, steam, etc. between the two surfaces, exerting a force which is opposite the forces from pressure differences or springs trying to close the two faces together and so may create a non contact seal that is more stable and reliable than hydrodynamic seals currently in use.
摘要翻译: 为了进行印章; 使用包括两个相对表面的一侧的多孔材料来限制并均匀分布在两个表面之间的外部加压气体,液体,蒸汽等,施加与压力差的力相反的力或试图关闭压力的弹簧 两个面在一起,因此可能产生比目前使用的流体动力密封件更稳定和可靠的非接触密封。
-
公开(公告)号:US20120070109A1
公开(公告)日:2012-03-22
申请号:US13303966
申请日:2011-11-23
申请人: Kohachi Tsuji , Yuzo Makinae , Shigeru Kajiwara
发明人: Kohachi Tsuji , Yuzo Makinae , Shigeru Kajiwara
CPC分类号: F16C33/08 , F16C17/02 , F16C33/046 , F16C33/206 , F16C33/208 , F16C35/02 , F16C2202/10 , F16C2204/10 , F16C2220/20 , F16C2220/44 , F16C2223/30 , F16C2226/12 , F16C2240/70 , Y10S384/902 , Y10S384/912
摘要: A bush bearing (1) is a wrapped bush bearing which has a cylindrical inner peripheral surface (2) serving as a sliding surface as well as an outer peripheral surface (3), and whose abutting faces (4) are abutted against each other. The outer peripheral surface (3) includes a cylindrical surface (11); a tapered surface (13) interposed between the cylindrical surface (11) and one annular end face (12) in an axial direction X and formed by roll forming; a smooth circular arc surface (14) interposed between the tapered surface (13) and the cylindrical surface (11); and a smooth circular arc surface (15) interposed between the tapered surface (13) and the end face (12).
摘要翻译: 衬套轴承(1)是具有作为滑动面的圆筒状的内周面(2)和外周面(3)的被包覆的衬套轴承,并且其抵接面(4)彼此抵接。 外周表面(3)包括圆柱形表面(11); 在轴向方向X上插入圆筒形表面(11)和一个环形端面(12)之间并通过辊压成形形成的锥形表面(13) 插入在锥形表面(13)和圆柱形表面(11)之间的平滑圆弧表面(14); 以及插入在所述锥形表面(13)和所述端面(12)之间的平滑圆弧表面(15)。
-
公开(公告)号:US20120027635A1
公开(公告)日:2012-02-02
申请号:US12980557
申请日:2010-12-29
申请人: Yoji TAKEZAKI , Shigeyuki Tanabe , Shinobu Aso
发明人: Yoji TAKEZAKI , Shigeyuki Tanabe , Shinobu Aso
CPC分类号: F16C33/124 , F16C33/128 , F16C33/145 , F16C2202/10
摘要: The present invention is a method for producing a fluid dynamic pressure bearing made of powder sintered metal and that grooves for generating dynamic pressure are formed on an inner peripheral surface and whose object is to facilitate forming a ferrosoferric oxide (Fe3O4) membrane on a surface of a bearing material, the method comprising compacting metal powder including at least not less than 70% by weight of particles with diameters of not more than 45 μm to gain a bearing material, sintering said bearing material, forming grooves for generating dynamic pressure on said sintered bearing material, and performing steam treatment to said sintered bearing material with said grooves to form a ferrosoferric oxide (Fe3O4) membrane on a porous surface of an inner surface or on porous surfaces of an inner surface and both end surfaces, so that gaps between particles become small because diameters of the particles of material powder of a powder sintered bearing material are approximately even and fine and are even small pores, as a result, sealing pores on the surface due to steam treatment is easy and dynamic pressure cannot be leaked.
摘要翻译: 本发明是一种制造由粉末烧结金属制成的流体动压轴承的方法,并且在内周面上形成用于产生动压的槽,其目的是有助于在表面上形成铁三氧化物(Fe 3 O 4)膜 轴承材料,所述方法包括压制包含至少不小于70重量%的直径不大于45μm的颗粒的金属粉末以获得轴承材料,烧结所述轴承材料,形成用于在所述烧结体上产生动态压力的槽 并对所述烧结的轴承材料进行蒸汽处理,以在所述凹槽的内表面的多孔表面上或在内表面和两个端面的多孔表面上形成铁三氧化物(Fe 3 O 4)膜,使得颗粒之间的间隙 由于粉末烧结轴承材料的粉末颗粒的直径大约为前夕,所以变小 并且细小,甚至是小孔,结果是由于蒸汽处理而使表面上的孔密封容易,动态压力不能泄漏。
-
8.
公开(公告)号:US20020142264A1
公开(公告)日:2002-10-03
申请号:US09819334
申请日:2001-03-28
发明人: Alex Metrikin
IPC分类号: A61C001/05 , F16C033/66 , C10M101/00
CPC分类号: F16C33/445 , A61C1/181 , C10M103/04 , C10M111/02 , C10M2201/053 , C10N2210/01 , C10N2240/06 , C10N2250/08 , F16C33/6611 , F16C33/6696 , F16C2202/10 , F16C2204/04 , F16C2240/60 , F16C2300/12 , F16C2316/13
摘要: The retainer of the present invention is made of a composite material having a body made from a polymer, a layer of solid lubricant formed over the body by chemically coating the body with a porous layer of solid lubricant and impregnating the solid lubricant with another lubricant using conventional methods such as vacuum impregnation. The retainer is placed between an outer raceway and an inner raceway to form a self-lubricating bearing. The bearing made in this manner has high lubrication tolerance (i.e. it performs well in the absence of external lubrication). Because of its high lubrication tolerance, the bearing is suitable for use in various applications such as dental/medical hand pieces that are periodically sterilized and other applications which occasionally experience periods of lubrication starvation.
摘要翻译: 本发明的保持器由具有由聚合物制成的主体的复合材料制成,通过用固体润滑剂的多孔层化学涂覆主体并通过另一种润滑剂浸渍固体润滑剂而形成在主体上的固体润滑剂层,使用 常规方法如真空浸渍。 保持器位于外滚道和内滚道之间以形成自润滑轴承。 以这种方式制造的轴承具有高的润滑容限(即,在没有外部润滑的情况下表现良好)。 由于其高润滑性,轴承适用于周期性消毒的牙科/医疗手部件等有时会出现润滑不足的各种应用。
-
公开(公告)号:US11759849B1
公开(公告)日:2023-09-19
申请号:US17823238
申请日:2022-08-30
发明人: Liang Wang , Qigui Wang , Jianghuai Yang , Kiran Mistry , Oliver Patrick Jordan
CPC分类号: B22C9/088 , B22D25/02 , C22C37/08 , C22C37/10 , F16C3/08 , B23P2700/07 , F16C2202/06 , F16C2202/08 , F16C2202/10 , F16C2204/66 , F16C2220/02 , F16C2240/02 , F16C2240/30 , F16C2240/48 , Y10T29/17 , Y10T29/49286
摘要: A method and system for manufacturing a cast iron crankshaft for a vehicle are provided. The system comprises a molding unit arranged to form a negative sand cast mold of the cast iron crankshaft. The mold comprising at least one molded cavity having a pattern with dimensions of the cast iron crankshaft. The system further comprises a feeding mechanism comprising a riser having a connector through which molten metallic material flows to the cast mold. The feeding mechanism feeds the molten metallic material at a riser connection angle in the at least one mold cavity. The riser connection angle corresponds to a connector modulus. The connector modulus is 20% greater than a cast modulus. The riser geometry corresponds to a riser modulus. The riser modulus is 20% greater than the connector modulus. The system further comprises a furnace, a cooling area, a separation unit, a controller and a power source.
-
公开(公告)号:US10006492B2
公开(公告)日:2018-06-26
申请号:US15425199
申请日:2017-02-06
申请人: Shimadzu Corporation
发明人: Masashi Manabe
IPC分类号: F16C33/66 , F04D19/04 , F04D29/059 , F04D29/063 , F16C19/16 , F04D29/66
CPC分类号: F16C33/6648 , F04D19/042 , F04D29/059 , F04D29/063 , F04D29/668 , F16C19/06 , F16C19/16 , F16C33/6659 , F16C33/6685 , F16C2202/10 , F16C2360/45
摘要: A vacuum pump comprises: a bearing device; and an exhaust function including a rotary body supported by the bearing device and configured to exhaust gas. The bearing device includes a bearing having an outer ring, an inner ring, and a rolling body, a lubricant storage configured to store lubricant, a lubricant supply structure configured to supply, to the bearing, the lubricant stored in the lubricant storage, a holding member configured to hold the bearing, and a porous body disposed outside the outer ring of the bearing and filled with the lubricant supplied from the lubricant supply structure to the bearing.
-
-
-
-
-
-
-
-
-