CERAMIC TURBINE BLADE ATTACHMENT HAVING HIGH TEMPERATURE, HIGH STRESS COMPLIANT LAYERS AND METHOD OF FABRICATION THEREOF
    41.
    发明申请
    CERAMIC TURBINE BLADE ATTACHMENT HAVING HIGH TEMPERATURE, HIGH STRESS COMPLIANT LAYERS AND METHOD OF FABRICATION THEREOF 失效
    具有高温,高应力合金层的陶瓷涡轮机叶片及其制造方法

    公开(公告)号:US20040058191A1

    公开(公告)日:2004-03-25

    申请号:US10455830

    申请日:2003-06-06

    Abstract: A nickel base single crystal compliant layer on a ceramic blade has the capability to sustain high stresses and high operating temperature. Layers of nickel and platinum bonded on a single crystal superalloy over a sputtered gold-chromium layer support the high stress levels at elevated temperature without extrusion of the soft platinum or nickel layer and without destruction of an NiO compliant surface. The compliant layers have survived stress and temperature conditions without failure to the ceramic blade and the system can be stressed/heated and unloaded/cooled repeatedly without damage to the ceramic blades. A single crystal nickel base superalloy (i.e., SC180) has high strength properties at elevated temperature. Thin layers of chromium followed by gold are e-beam evaporated on one side of a polished surface of the alloy. Pure nickel is electroplated over this e-beam gold-chromium layer. Platinum is either electroplated or plated electrolessly over the nickel layer. The structure is annealed in vacuum or inert atmosphere to allow the diffusion of gold-chromium alloy into the superalloy and permit the nickel layer and diffusion of nickel into platinum to form a multilayer structure which is metallurgically bonded. The sheet is oxidized in air to allow diffusion of the nickel layer through the platinum to come to the surface and oxidize forming nickel oxide. This nickel oxide layer acts as the load distribution layer which does not extrude and the structural integrity of the compliant layer is maintained by the high-strength single crystal superalloy.

    Abstract translation: 陶瓷刀片上的镍基单晶柔性层具有维持高应力和高工作温度的能力。 在溅射的金 - 铬层上结合在单晶超合金上的镍和铂层在升高的温度下支持高应力水平,而不会挤出软的铂或镍层,并且不破坏NiO柔顺表面。 柔性层在应力和温度条件下已经存活,而不会损坏陶瓷刀片,并且系统可以被重复地加压/加热和卸载/冷却,而不损坏陶瓷刀片。 单晶镍基超级合金(即SC180)在升高的温度下具有高强度性能。 在合金的抛光表面的一侧上电子束蒸发薄铬层后面的金。 在该电子束金 - 铬层上电镀纯镍。 将铂电镀或电镀在镍层上。 该结构在真空或惰性气氛中进行退火,以允许金 - 铬合金扩散到超合金中,并允许镍层和镍扩散到铂中以形成冶金结合的多层结构。 该片材在空气中被氧化以允许镍层通过铂的扩散进入表面并氧化形成的氧化镍。 该氧化镍层用作不挤出的载荷分布层,并且由高强度单晶超耐热合金维持柔顺层的结构完整性。

    Hybrid rotor, method of manufacturing the hybrid rotor, and gas turbine
    42.
    发明申请
    Hybrid rotor, method of manufacturing the hybrid rotor, and gas turbine 审中-公开
    混合转子,制造混合转子的方法和燃气轮机

    公开(公告)号:US20040013521A1

    公开(公告)日:2004-01-22

    申请号:US10398941

    申请日:2003-04-11

    Inventor: Takeshi Yamada

    Abstract: A hybrid rotor, a manufacturing method thereof and a gas turbine realize reduced manufacturing cost and reduced weight of parts. An impeller part 31 as a rotor main part comprises a bore portion 32, impellers 34 provided therearound and a shaft bore 33 provided centrally of the bore portion 32. An enlarged shaft bore portion 35 is coaxially provided in the shaft bore 33. The impeller part 31 is made of Ti or Ni alloy by precision casting. A ring member 10 made of a metal base composite material is inserted into the enlarged shaft bore portion 35 and is bonded together by friction bonding or diffusion bonding to thereby strengthen the rotor. The rotor main part is manufactured by precision casting without need of machining. The ring member 10 is separately manufactured from the impeller part 11. By strengthening the rotor, the bore portion 32 can be made thin. Thus, manufacturing cost is remarkably reduced and weight of the rotor is also reduced.

    Abstract translation: 混合式转子,其制造方法和燃气轮机实现了制造成本的降低,部件重量的减轻。 作为转子主体的叶轮部31包括孔部32,设置在其周围的叶轮34和设置在孔部32的中央的轴孔33.在轴孔33中同轴地设置有扩大的轴孔部35。 31由精密铸造的Ti或Ni合金制成。 将由金属基复合材料制成的环件10插入到扩大轴孔部分35中,并通过摩擦粘合或扩散接合结合在一起,从而加强转子。 转子主体采用精密铸造而无需加工。 环形构件10分别由叶轮部11制造。通过加强转子,可以使孔部32变薄。 因此,制造成本显着降低,转子的重量也降低。

    Ferrous pistons for diesel engines having EGR coating
    43.
    发明授权
    Ferrous pistons for diesel engines having EGR coating 有权
    具有EGR涂层的柴油发动机的有色活塞

    公开(公告)号:US06606983B2

    公开(公告)日:2003-08-19

    申请号:US09954842

    申请日:2001-09-18

    CPC classification number: F02F3/10 F05C2201/0448 F05C2201/0466 F05C2253/12

    Abstract: A corrosion resistant piston for use in an exhaust gas recirculation diesel engine. The piston includes a crown portion having ring grooves formed around a periphery of the crown portion. The ring grooves are separated by ring lands. The piston also includes a piston rod connecting portion that extends from the crown portion. The piston is made of steel and includes an electroless coating of nickel having a maximum thickness of 8 micrometers.

    Abstract translation: 用于废气再循环柴油发动机的耐腐蚀活塞。 所述活塞包括冠部,所述冠部具有围绕所述冠部的周边形成的环形槽。 环形槽由环形环分开。 活塞还包括从冠部延伸的活塞杆连接部分。 活塞由钢制成并且包括最大厚度为8微米的镍的无电涂层。

    Bonded niobium silicide and molybdenum silicide composite articles using semi-solid brazes
    44.
    发明申请
    Bonded niobium silicide and molybdenum silicide composite articles using semi-solid brazes 有权
    使用半固体钎焊的结合的硅化铌和硅化钼复合材料制品

    公开(公告)号:US20030002988A1

    公开(公告)日:2003-01-02

    申请号:US09867489

    申请日:2001-05-30

    Abstract: An airfoil having a melting temperature of at least about 1500null C. and comprising a first piece and a second piece joined by a braze to the first piece. The first piece comprises one of a first niobium-based refractory metal intermetallic composite and a first-based refractory metal intermetallic composite, and the second piece comprises one of a second niobium-based refractory metal intermetallic composite and a second molybdenum-based refractory metal intermetallic composite. The braze joining the first piece to the second piece is a semi-solid braze that comprises a first component and a second component. The first component of the semi-solid braze comprises a first element and a second metallic element, wherein the first element is one of titanium, palladium, zirconium, niobium, germanium, silicon, and hafnium, and the second metallic element is a metal selected from the group consisting of titanium, palladium, zirconium, niobium, hafnium, aluminum, chromium, vanadium, platinum, gold, iron, nickel, and cobalt, the second metallic element being different from the first element. The second component has a melting temperature of at least about 1450null C. and comprises one of niobium, molybdenum, titanium, hafnium, silicon, boron, aluminum, tantalum, germanium, vanadium, tungsten, zirconium, and chromium. This abstract is submitted in compliance with 37 C.F.R. 1.72(b) with the understanding that it will not be used to interpret or limit the scope of or meaning of the claims.

    Abstract translation: 具有至少约1500℃的熔化温度的翼型件,并且包括通过钎焊连接到第一件的第一件和第二件。 第一件包括第一铌基难熔金属金属间复合材料和第一种难熔金属金属间复合材料中的一种,第二件包括第二铌基难熔金属金属间复合物和第二种钼基难熔金属金属间化合物 综合。 将第一件连接到第二件的钎焊是包括第一部件和第二部件的半固体钎焊。 半固体钎焊的第一部件包括第一元件和第二金属元件,其中第一元件是钛,钯,锆,铌,锗,硅和铪之一,并且第二金属元素是选择的金属 从钛,钯,锆,铌,铪,铝,铬,钒,铂,金,铁,镍和钴组成的组中,第二金属元素不同于第一元素。 第二组分具有至少约1450℃的熔融温度,并且包括铌,钼,钛,铪,硅,硼,铝,钽,锗,钒,钨,锆和铬中的一种。 本摘要根据37 C.F.R. 1.72(b),但有一项谅解,即不会用于解释或限制权利要求的范围或含义

    Refrigerant compressor having improved drive power transmission unit
    47.
    发明授权
    Refrigerant compressor having improved drive power transmission unit 失效
    具有改进的驱动力传递单元的制冷压缩机

    公开(公告)号:US6065943A

    公开(公告)日:2000-05-23

    申请号:US632888

    申请日:1996-04-16

    Abstract: A refrigerant compressor having a drive shaft rotatable to cause compression of a refrigerant gas, and a drive power transmission unit for transmitting a drive power from an external drive power source to the drive shaft, the drive power transmission unit having a pulley freely rotatably mounted around the drive shaft, a power transmitting element fixed to the drive shaft, and a shock absorbent rubber element arranged between the pulley and the power transmitting element for providing a positive engagement between the rubber element and the pulley, and between the rubber element and the power transmitting element. The shock absorbent rubber element absorbs a change in a load torque applied to the compressor before the torque change is transmitted to the external drive power source via the pulley, and disengages from at least one of the pulley and the power transmitting element when an excessive load torque is applied to the compressor to interrupt transmission of the excessive load torque from the compressor to the external drive power source.

    Abstract translation: 一种制冷剂压缩机,其具有可旋转以致致冷剂气体压缩的驱动轴;以及驱动力传递单元,用于将来自外部驱动动力源的驱动力传递到所述驱动轴,所述驱动力传递单元具有可自由旋转地安装在其周围的滑轮 所述驱动轴,固定在所述驱动轴上的动力传递元件以及设置在所述滑轮与所述动力传递元件之间的减震橡胶元件,用于在所述橡胶元件和所述滑轮之间以及所述橡胶元件与所述动力之间提供正接合 传输元件。 减震橡胶元件在转矩变化通过皮带轮传递到外部驱动动力源之前吸收施加到压缩机的负载转矩的变化,并且当过载时,与滑轮和动力传递元件中的至少一个脱离 扭矩被施加到压缩机以中断从压缩机到外部驱动电源的过载负载转矩的传输。

    Compressor for a refrigeration machine having a thrust bearing
    48.
    发明授权
    Compressor for a refrigeration machine having a thrust bearing 失效
    具有推力轴承的制冷机用压缩机

    公开(公告)号:US5695326A

    公开(公告)日:1997-12-09

    申请号:US655883

    申请日:1996-05-31

    Abstract: A compressor for a refrigeration machine is provided without any problems of reduction in the life of a thrust bearing structure even when a substitutive coolant not containing any chlorine is used. In the compressor for a refrigeration machine having a thrust bearing made of steel for supporting a thrust load applied to a drive shaft, a thrust bearing surface made of a material different from that of the drive shaft is formed in the thrust bearing by means of a surface treatment. Alternatively a washer defining the thrust bearing surface may be surface treated to provide a material different from that of the drive shaft. The washer may also be made of a material different from that of the drive shaft. According to the the present invention, even when a boundary lubricating state is produced between the drive shaft and the thrust bearing surface sticking is prevented. As a result, the life of the thrust bearing structure of the drive shaft can be made longer and a problem of reduction in the life of the thrust bearing structure can be avoided even when a substitutive coolant not containing any chlorine is utilized.

    Abstract translation: 提供一种用于制冷机的压缩机,即使使用不含氯的替代冷却剂,也不会产生推力轴承结构的寿命降低的问题。 在具有用于支撑施加到驱动轴上的推力负载的由钢构成的推力轴承的制冷机的压缩机中,由推力轴承形成的与驱动轴不同的推力轴承表面形成在推力轴承中 表面处理。 或者,限定止推轴承表面的垫圈可以被表面处理以提供与驱动轴不同的材料。 垫圈也可以由与驱动轴不同的材料制成。 根据本发明,即使在驱动轴与推力轴承面之间产生边界润滑状态,也能够防止粘着。 结果,即使使用不含氯的替代冷却剂,驱动轴的推力轴承结构的寿命也可以更长,并且即使使用不含氯的替代冷却剂,也能够避免推力轴承结构的使用寿命的问题。

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