Internally actuated sperical bearing
US4435023A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 6, 1981 |
| Grant date | Mar 6, 1984 |
| Priority date | — |
| Expiry date | May 6, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02K9/84
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internally actuated spherical bearing having particular utility for vectoring the thrust produced by the propulsion system of a rocket propelled vehicle comprises, in single axis-rotation nozzle structures, a pair of elongated kidney loop seal actuators that are arranged in end-to-end relation with each actuator wrapped around approximately 180.degree. of the inner race in each semi-circle, the ends of each actuator being disposed at spaced positions proximate the pivotal axis of the inner race. For omni axial rotation nozzles the bearing includes a pair of such actuators to effect nozzle rotation on the pitch axis, and further includes a second pair of elongated kidney loop seal actuators to effect nozzle rotation on the yaw axis, each of the yaw actuators also being wrapped in end-to-end relation around approximately 180.degree. of the bearing in each semi-circle with the latter semi-circles being in a plane proximate to the plane containing the pitch axis semi-circles but angularly displaced 90.degree. therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.