Actuator for an active transmission mount isolation system
US6416016B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 29, 2000 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Jan 24, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2027/002
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An actuator is disclosed for an active vibration and noise control system in an aircraft. The actuator is configured to attach a vibrating component, such as a gearbox mounting foot, to an aircraft support structure. The actuator is actuated by the control system to control the transmission of vibratory loads from the gearbox foot. The actuator includes a housing and a mounting member. The housing mounts to the aircraft. The mounting member attaches to the vibrating component within the aircraft. A piston arrangement is attached to the housing and includes a sleeve located within the housing, and a piston slidably disposed within the sleeve. A bearing assembly engages the mounting member with the piston. The bearing assembly includes a first bearing located between the mounting member and an inner bearing member. The first bearing is adapted to transmit axial motions between the mounting member and the piston. A second bearing is located between the inner bearing member and the housing and is adapted to transmit moment and shear loads from the mounting member to the housing. A third bearing is located between the inner bearing member and the piston, and is adapted to permit rotatio…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.