| 摘要 |
A no-back device for an actuator having a screw shaft (3) extending along an axis and a brake element (3a) fixed for rotation with the shaft and extending laterally of the axis, the no-back device comprising a rotary ratchet member (12, 13) and a rotary friction member (4, 5) mounted for limited axial movement within a recess (2a) defined by a housing (2), and defining at least one path for passing fluid through the recess (2a), the no-back device further comprising peripherally extending diversion means (6, 7) disposed between an outer periphery of the friction member and an inwardly facing peripheral surface (10) of the housing whereby, in use, fluid passing through the recess (2a) is diverted away from the inwardly facing peripheral surface (10) of the housing and across a laterally extending surface (4a, 5a) of the friction member (4, 5). <IMAGE> |
