Reverse bulged forward acting scored rupture disc bulkhead structure for multi-stage rocket motor
US5160070A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1991 |
| Grant date | Nov 3, 1992 |
| Priority date | — |
| Expiry date | Mar 25, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B15/36
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Rupture disc bulkhead structure for use in a multi-stage rocket motor for missiles or the like wherein the disc is supported by a multiple apertured backup member. The disc has a series of bulges which define dimples that conform to the configuration of the apertures in the backup member. Bulging of the disc is carried out under a pressure exceeding that of the withstand pressure of the supported disc. Score lines in the disc aligned with the support segments of the apertured backup member permit the disc to rupture and open at a pressure significantly lower than the back pressure withstand value. The construction provides bulkhead structure which will withstand back pressures in the range of 2,000 to 10,000 static psig yet fully open in a forward direction at a static pressure of no more than about 100 to 400 psig.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.