Aircraft ejection seat system
US7578472B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 2, 2006 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Sep 13, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D25/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An ejection seat having pitch, roll, and yaw control provided by three separate rocket motors where each rocket motor has a fixed nozzle and the entire rocket motor is rotated about a single axis corresponding to the minimum principal moment of inertia of the rocket. Actuation for each rocket motor is by means of a hydraulic rack and pinion actuator. Power for the hydraulic actuators is provided by a unique hydro-pneumatic amplifier that converts stored gas energy into pressurized hydraulic fluid. The high pressure hydraulic fluid is directed through conventional servo valves into the appropriate actuators to provide main, roll, pitch, and yaw thrust as required to achieve upright orientation and vertical flight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.