Friction welding of titanium aluminide turbine to titanium alloy shaft
    5.
    发明授权
    Friction welding of titanium aluminide turbine to titanium alloy shaft 有权
    钛铝合金涡轮对钛合金轴的摩擦焊接

    公开(公告)号:US08784065B2

    公开(公告)日:2014-07-22

    申请号:US13114177

    申请日:2011-05-24

    IPC分类号: F01D5/02

    摘要: A frictional welding process for joining a titanium aluminide turbine to a titanium alloy shaft is disclosed. The disclosed process includes preheating the turbine to a designated temperature, providing a specially-designed joining interface geometry at the distal end of the shaft and optimizing the frictional welding parameters. The frictional welding is carried out in multiple steps but, while the shaft is being spun by a rotating chuck, two different pressures and two different time periods are used until the narrower portions of the distal end of the shaft have been fused onto the welding surface of the turbine. Then, an additional forging step with yet another engagement pressure between the shaft and the turbine is carried out without rotation of the shaft.

    摘要翻译: 公开了一种用于将钛铝合金涡轮机连接到钛合金轴的摩擦焊接方法。 所公开的方法包括将涡轮预热到指定温度,在轴的远端提供特别设计的接合界面几何形状并优化摩擦焊接参数。 摩擦焊接是以多个步骤进行的,但是当轴通过旋转卡盘旋转时,使用两个不同的压力和两个不同的时间段,直到轴的远端的较窄部分已熔合到焊接表面上 的涡轮。 然后,在轴和涡轮之间的另一个接合压力下进行另外的锻造步骤而不转动轴。

    Friction welding
    7.
    发明申请
    Friction welding 审中-公开
    摩擦焊接

    公开(公告)号:US20080000558A1

    公开(公告)日:2008-01-03

    申请号:US11479599

    申请日:2006-06-30

    IPC分类号: C22F1/18

    CPC分类号: C22F1/183

    摘要: A method of bonding two materials by friction welding method. A first material may be made from a titanium aluminide intermetallic alloy and a second material may be made from a titanium alloy. The first material may be heated to a temperature between about 300° C. and about 800° C. The second material may be rotated relative to the first material. The first material and the second material may be pressed against each other while one of the first material, and the second material is rotated. The rotation of one of the first material and the second material may be stopped, and the first material and the second material may be pressed against each other after the rotation of one of the first material and the second material is stopped.

    摘要翻译: 一种通过摩擦焊接法将两种材料接合的方法。 第一材料可以由钛铝化物金属间合金制成,第二材料可以由钛合金制成。 可以将第一材料加热至约300℃至约800℃的温度。第二材料可以相对于第一材料旋转。 第一材料和第二材料可以在第一材料和第二材料中的一个旋转的同时彼此挤压。 可以停止第一材料和第二材料之一的旋转,并且在第一材料和第二材料之一的旋转停止之后第一材料和第二材料可以彼此挤压。

    Friction Welding of Titanium Aluminide Turbine to Titanium Alloy Shaft
    8.
    发明申请
    Friction Welding of Titanium Aluminide Turbine to Titanium Alloy Shaft 有权
    钛铝合金涡轮对钛合金轴的摩擦焊接

    公开(公告)号:US20120301307A1

    公开(公告)日:2012-11-29

    申请号:US13114177

    申请日:2011-05-24

    IPC分类号: F01D5/30 B23K20/12

    摘要: A frictional welding process for joining a titanium aluminide turbine to a titanium alloy shaft is disclosed. The disclosed process includes preheating the turbine to a designated temperature, providing a specially-designed joining interface geometry at the distal end of the shaft and optimizing the frictional welding parameters. The frictional welding is carried out in multiple steps but, while the shaft is being spun by a rotating chuck, two different pressures and two different time periods are used until the narrower portions of the distal end of the shaft have been fused onto the welding surface of the turbine. Then, an additional forging step with yet another engagement pressure between the shaft and the turbine is carried out without rotation of the shaft.

    摘要翻译: 公开了一种用于将钛铝合金涡轮机连接到钛合金轴的摩擦焊接方法。 所公开的方法包括将涡轮预热到指定温度,在轴的远端提供特别设计的接合界面几何形状并优化摩擦焊接参数。 摩擦焊接是以多个步骤进行的,但是当轴通过旋转卡盘旋转时,使用两个不同的压力和两个不同的时间段,直到轴的远端的较窄部分已熔合到焊接表面上 的涡轮。 然后,在轴和涡轮之间的另一个接合压力下进行另外的锻造步骤而不转动轴。

    Turbocharger with air buffer seal
    10.
    发明授权
    Turbocharger with air buffer seal 有权
    涡轮增压器带空气缓冲器密封

    公开(公告)号:US08915708B2

    公开(公告)日:2014-12-23

    申请号:US13168178

    申请日:2011-06-24

    摘要: A turbocharger includes a turbine section, a compressor section and a bearing section. A turbine wheel and a compressor wheel are mounted on a shaft and the shaft is rotatably mounted in a bore of a housing. A lubrication system circulates lubricant through the bearing section. First and second spaced apart seals are positioned along the shaft. A recess is positioned between the first seal and the second seal to define an air buffer chamber. The air buffer chamber is provided with pressurized air to discourage lubricant leakage past the first seal.

    摘要翻译: 涡轮增压器包括涡轮部分,压缩机部分和轴承部分。 涡轮机叶轮和压缩机叶轮安装在轴上,并且轴可旋转地安装在壳体的孔中。 润滑系统通过轴承部分循环润滑剂。 第一和第二间隔开的密封件沿着轴定位。 凹部位于第一密封件和第二密封件之间以限定空气缓冲室。 空气缓冲室设有加压空气以阻止经过第一密封的润滑剂泄漏。