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    • 2. 发明授权
    • Airfoil tip shroud damper
    • 翼型护罩阻尼器
    • US08105039B1
    • 2012-01-31
    • US13078567
    • 2011-04-01
    • Yehia M. El-AiniStuart K. Montgomery
    • Yehia M. El-AiniStuart K. Montgomery
    • F01D5/26
    • F01D5/225F01D11/008Y10S416/50
    • A turbine disk includes a rotor and a plurality of turbine blades, each comprising a root at a proximal end secured to the rotor and a tip having a shroud at a distal end. The shroud includes a inner diameter surface, an outer diameter surface and a segmented sidewall surface separating the inner and outer diameter surfaces. The shrouds of adjacent turbine blades are separated by a tip shroud damper, and which includes a retention rail that cooperates with the outer diameter surface to maintain a positional relationship of the damper, a inner flange that engages the segmented sidewall surface, and a web that separates the retention rail and the inner flange. The tip shroud damper reduces the vibratory responses of modes involving axial and radial shroud motion to prevent high cycle fatigue (HCT).
    • 涡轮盘包括转子和多个涡轮机叶片,每个涡轮叶片包括固定在转子上的近端处的根部和在远端具有护罩的尖端。 护罩包括内径表面,外径表面和分隔内径和外径表面的分段侧壁表面。 相邻涡轮机叶片的护罩由尖端护罩阻尼器隔开,并且其包括与外径表面配合以保持阻尼器的接合位置关系的保持轨道,接合分段侧壁表面的内凸缘和与分段侧壁表面接合的腹板 分离保持轨和内凸缘。 尖端护罩减震器减少涉及轴向和径向护罩运动的模式的振动响应,以防止高循环疲劳(HCT)。