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    Composite lightweight engine poppet valve
    1.
    发明授权
    Composite lightweight engine poppet valve 有权
    复合轻型发动机提升阀

    公开(公告)号：US06912984B2

    公开(公告)日：2005-07-05

    申请号：US10401418

    申请日：2003-03-28

    申请人： Sundaram L. Narasimhan ,  Sinharoy Shubhayu ,  Michael L. Killian ,  Majo Cecur ,  Jose F. Masello ,  Timothy L. Sheren

    发明人： Sundaram L. Narasimhan ,  Sinharoy Shubhayu ,  Michael L. Killian ,  Majo Cecur ,  Jose F. Masello ,  Timothy L. Sheren

    IPC分类号： B23P15/00 ,  F01L3/02 ,  F01L3/14 ,  F01L3/20 ,  F02N3/00

    CPC分类号： B23P15/002 ,  F01L3/02 ,  F01L3/14 ,  F01L2101/00 ,  F01L2103/00 ,  Y10T29/49298 ,  Y10T29/49307

    摘要： A composite lightweight engine poppet valve (10, 110, 210) that has a valve head portion (12, 112, 212) and at least a portion of the stem portion (14, 114, 214) made from a titanium intermetallic material attached by way of a solid state attachment to a nickel base alloy transition piece (16, 116, 216) that is heat treated for high creep resistance. The tip portion (18, 118, 218) made from conventional material is first attached to one end of the transition piece. The transition piece (16, 116,216) is cut to a desired length and then attached preferably by friction welding to the titanium intermetallic stem portion (14, 114, 214) at a preselected distance (d1, d2, or d3). The tip portion (18, 118, 218) made from conventional material is then attached to the other end of the transition piece. In another embodiment, a second hollow stem portion (215) is attached to the transition piece (216) and the tip portion (218) is then attached thereto.

    摘要翻译： 一种复合轻型发动机提升阀（10,110,210），其具有阀头部分（12,112,212）以及由钛金属间材料制成的杆部分（14,114,214）的至少一部分，所述钛金属间材料由 固态连接到经过热处理以获得高耐蠕变性的镍基合金过渡件（16,116,216）的方式。 由常规材料制成的尖端部分（18,118,218）首先附接到过渡件的一端。 将过渡件（16,116,216）切割成期望的长度，然后优选地通过摩擦焊接以预选距离（d 1，d 2或d 3）摩擦焊接到钛金属间杆部分（14,114,214）。 然后将由常规材料制成的尖端部分（18,118,218）连接到过渡件的另一端。 在另一个实施例中，第二中空杆部分（215）附接到过渡件（216），然后将尖端部分（218）附接到其上。