公开(公告)号：US20160265668A1

公开(公告)日：2016-09-15

申请号：US15067368

申请日：2016-03-11

申请人： ROLLS-ROYCE plc

发明人： Michael Joseph PEKRIS ,  Felix Francesco Andrea LEPETIT ,  Terence Valentine JONES

IPC分类号： F16J15/44 ,  F16J15/3292 ,  F01D11/02 ,  F16J15/328

CPC分类号： F16J15/44 ,  F01D11/02 ,  F05D2220/32 ,  F05D2240/57 ,  F05D2240/59 ,  F16J15/164 ,  F16J15/3292 ,  F16J15/3412

摘要： A seal arrangement for effecting a seal between first and second components arranged for relative rotation about a common axis. Seal arrangement includes a first seal surface associated with the first component, and a second seal surface associated with the second component. First and second seal surfaces are presented for air-riding interaction with one another during relative rotation between components such that, in use, a pressure drop is maintained across seal arrangement. First seal surface incorporates a plurality of spaced-apart hydrodynamic lift-generating features and plurality of ventilation recesses, each ventilation recess being interposed between respective pair of lift-generating features, and wherein each ventilation recess has depth measured normal to first seal surface which is greater than maximum dimension of each lift-generating feature measured normal to first seal surface. Seal arrangement may be embodied in compliant filament seal such as a leaf seal or a brush seal.

摘要翻译： 用于实现第一和第二部件之间的密封的密封装置，其布置成围绕公共轴线进行相对旋转。 密封装置包括与第一部件相关联的第一密封表面和与第二部件相关联的第二密封表面。 呈现第一和第二密封表面用于在部件之间的相对旋转期间彼此进行空气相互作用，使得在使用中，跨密封装置保持压降。 第一密封表面包括多个间隔开的流体动力升力产生特征和多个通风凹槽，每个通气凹槽介于相应的一对举升产生特征之间，并且其中每个通气凹槽具有垂直于第一密封表面的深度， 大于与第一密封表面垂直测量的每个升力产生特征的最大尺寸。 密封装置可以以柔性灯丝密封件例如叶片密封件或刷子密封件来实现。