Power plants – Reaction motor – Plural propellants to burn sequentially
Patent
1998-06-16
2000-11-21
Casaregola, Louis J.
Power plants
Reaction motor
Plural propellants to burn sequentially
60253, 102287, 102288, F02K 910
Patent
active
061486108
ABSTRACT:
A solid propellant charge for a propulsion unit (1). The latter includes a casing (2) containing the solid propellant charge (3), in the form of an elongated body having a longitudinal axis (X--X), which charge (3) has, over part of its longitudinal extent, a propellant charge profile (4) of large combustion area and is subdivided, along the longitudinal axis (X--X), into at least two segments abutting one another with their respective mutually confronting faces. The propulsion unit furthermore includes a nozzle (5) and means (6) for igniting said charge. The propellant charge profile (4) of large combustion area is provided in that part of the propellant charge (3) which is intermediate along the longitudinal axis (X--X).
REFERENCES:
patent: 2114214 (1938-04-01), Damblanc
patent: 3088273 (1963-05-01), Adelman et al.
patent: 3407736 (1968-10-01), Beuschel
patent: 3427805 (1969-02-01), Osburn
patent: 4466352 (1984-08-01), Dalet et al.
Johnston, W.A., "Method for Reducing Stagnation Pressure Losses in Segmented Solid Rocket Motors", Journal of Propulsion and Power, vol. 8, No. 3, May 1, 1992, pp. 720-721.
Calabro Max
Thepenier Jean
Aerospatiale - Societe Nationale Industrielle
Casaregola Louis J.
Societe Nationale des Poudres et Explosifs
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