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    • 7. 发明申请
    • WASTEGATE VALVE AND EXHAUST GAS TURBOCHARGER EQUIPPED WITH WASTEGATE VALVE
    • 瓦斯瓦斯瓦斯瓦斯涡轮增压器配瓦斯瓦斯
    • US20140345273A1
    • 2014-11-27
    • US14368538
    • 2011-12-27
    • Hideki YamaguchiHiroshi NakagawaYasuaki Jinnai
    • Hideki YamaguchiHiroshi NakagawaYasuaki Jinnai
    • F02B37/18
    • F02B37/186F01D17/10F02B37/183F02C6/12F05D2220/40Y02T10/144
    • It is intended to provide a wastegate valve which can achieve even and stable seating of the valving element on the valve seat and which can suppress vibration of the valving element, as well as a exhaust gas turbocharger equipped with such wastegate valve. A valving element 13 opens and closes an exhaust gas bypass path, a valve stem 17 stands upright from the valving element 13, an operating lever 15 has one end formed with an insertion hole 29 where the valve stem 17 is inserted with play, a support plate 31 is provided on one end of the valve stem opposite to the other end which is inserted through the insertion hole, and a spring member 19 is provided between the support plate 31 and the operating lever 15 in an axial direction of the valve stem to suppress vibration of the valving element. The spring member 19 has a large-diameter part and at least two small-diameter parts with a diameter smaller than the large-diameter part in a space between the support plate and the operating lever in the axial direction, the large-diameter part and the at least two small-diameter parts being arranged concentrically with an axial center of the valve stem, and a pair of the at least two small-diameter parts constitute a first contact part 35 where the damping member contacts an operating lever side and a second contact part 37 where the damping member contacts a support plate side respectively, the pair of the at least two small-diameter parts being respectively disposed at both ends of the damping member in the axial direction.
    • 旨在提供一种能够实现阀元件均匀且稳定地安置在阀座上并且可以抑制阀元件的振动以及配备有这种废气门阀的排气涡轮增压器的废气门阀。 阀元件13打开和关闭废气旁通路径,阀杆17从阀元件13竖直地竖立,操作杆15的一端形成有插入孔29,阀杆17插入其中,支撑件 板31设置在阀杆的与插入孔插入的另一端相对的一端上,弹簧构件19沿着阀杆的轴向方向设置在支撑板31和操作杆15之间 抑制阀元件的振动。 弹簧构件19在支撑板和操作杆之间的轴向方向上的空间中具有大直径部分和至少两个直径小于直径部分的小直径部分,大直径部分和 所述至少两个小直径部分与所述阀杆的轴向中心同心地布置,并且所述至少两个小直径部分中的一对构成所述阻尼构件接触操作杆侧的第一接触部35, 接触部分37,其中阻尼构件分别接触支撑板侧,所述一对至少两个小直径部分分别设置在阻尼构件的轴向两端。