Dual solid fuel propellant rocket engine
Abstract
Abstract THE ENGINE IS PROVIDED WITH A PLURALIY OF PROPELLANT CHARGES, SOME OF WHICH HAVE BOOSTER PROPELLANT DEFINING THEIR TOTAL BURNING SURFACE AND SUSTAINING PROPELLANT WHERE OTHERS HAVE ONLY BOOSTER PROPELLANT. THE CHARGES ARE ANNULAR TO SURROUND A CENTRAL TUBE HAVING RADIAL APERTURES COMMUNICATING WITH THE BURNING SURFACES FOR CONDUCTING THE EXHAUST CENTRALLY TO A COMMON NOZZLE MEANS FOR ACCOMMODATING THE IGNITION BOOSTERS TO TRANSFER THE IGNITION FROM A CENTRAL IGNITION CHARGE LOCATED AT THE END OF THE TUBE OPPOSITE FROM THE NOZZLE MEANS. PREFERABLY THE CHARGES HAVING BOTH BOOSTER AND SUSTAINER PROPELLANT ARE IDENTICAL AND THE CHARGES HAVING ONLY BOOSTER PROPELLANT ARE IDENTICAL, WITH EACH HAVING A CENTRAL BAND MOUNTED BETWEEN ADJACENT THIN WALL TUBES ALONG THE INTERIOR SURFACE OF THE COMBUSTION CHAMBER FOR DETERMINING THE AXIAL UNIFORM SPACING OF THE CHARGES. THE CHARGES PREFERABLY HAVE MEANS INSULATING THEIR ANNULAR INNER AND OUTER CYLINDRICAL SURFACES SO THAT THEY ARE DUAL AXIALLY SPACED END BURNERS.
Inventors
- 👤 Heinz Dilchert
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |