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公开(公告)号：US20080145216A1
公开(公告)日：2008-06-19
申请号：US11642001
申请日：2006-12-19
CPC分类号： F01D11/001 , F01D5/143 , F01D11/04 , Y02T50/673
摘要： A turbine stage includes a stator nozzle having a row of vanes mounted between inner and outer bands. The inner band terminates in an ovate ledge converging aft from the vanes with radially outer and inner convex surfaces joined at a convex apex. The ovate ledge reduces aerodynamic losses at the rotary seal with a row of following turbine rotor blades.
摘要翻译： 涡轮级包括具有安装在内带和外带之间的一排叶片的定子喷嘴。 内带终止于从叶片向后收敛的卵形突出部，其中凸起的顶部与径向外部和内部凸起表面接合。 卵形凸缘在一系列以下的涡轮转子叶片上减小了在旋转密封处的空气动力学损失。
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公开(公告)号：US20080145208A1
公开(公告)日：2008-06-19
申请号：US11642002
申请日：2006-12-19
CPC分类号： F01D5/145 , F01D5/082 , F01D5/143 , F01D9/041 , F01D11/001 , F05D2250/19 , Y02T50/673 , Y02T50/676
摘要： A turbine stage includes a stator nozzle cooperating with a row of turbine blades. The nozzle includes a row of vanes mounted between inner and outer bands, with the inner band adjoining the blades at inner platforms thereof at a rotary seal. The inner band includes a stator bullnose at the trailing edge thereof cooperating with the rotary seal for reducing aerodynamic losses thereat.
摘要翻译： 涡轮级包括与一排涡轮叶片配合的定子喷嘴。 喷嘴包括安装在内带和外带之间的一排叶片，内带在其内平台处以旋转密封件邻接叶片。 内带在其后缘包括一个与旋转密封件配合的定子公牛，以减少其中的空气动力学损失。
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公开(公告)号：US07578653B2
公开(公告)日：2009-08-25
申请号：US11642001
申请日：2006-12-19
CPC分类号： F01D11/001 , F01D5/143 , F01D11/04 , Y02T50/673
摘要： A turbine stage includes a stator nozzle having a row of vanes mounted between inner and outer bands. The inner band terminates in an ovate ledge converging aft from the vanes with radially outer and inner convex surfaces joined at a convex apex. The ovate ledge reduces aerodynamic losses at the rotary seal with a row of following turbine rotor blades.
摘要翻译： 涡轮级包括具有安装在内带和外带之间的一排叶片的定子喷嘴。 内带终止于从叶片向后收敛的卵形突出部，其中凸起的顶部与径向外部和内部凸起表面接合。 卵形凸缘在一系列以下的涡轮转子叶片上减小了在旋转密封处的空气动力学损失。
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