Mounting arrangement for variable diameter rotor blade assemblies
US5655879A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1995 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Mar 28, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C11/003
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A mounting arrangement (100) for a Variable Diameter Rotor blade assembly (16) having an outer blade segment telescopically mounting to a torque tube member (24), and connecting means (70) for transferring centrifugal loads of the outer blade segment (22) to a rotor hub assembly (18). The outer blade segment (22) includes a spar member (30) having a longitudinal axis (26) and defining an internal channel (62) for accepting the torque tube member (24) and the connecting means (70). The mounting arrangement (100) couples the connecting means (70) to the spar member (30) and includes a restraint surface (86) formed within the spar member (30) and a restraint assembly (68) disposed in combination therewith. The restraint surface (86) is disposed inboard of the tip end (90) of the spar member (30) and in a plane oriented transversely of the longitudinal axis (26). The restraint assembly (68) is disposed internally of the spar member (30) and includes a bearing block (102) mounting to the connecting means (70) and having upper and lower transverse slots (104a, 104b) formed therein. The restraint assembly (68) further comprises a load transfer member (106) disposed in combination with the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.