Power plants – Reaction motor – Method of operation
Reexamination Certificate
2006-02-28
2006-02-28
Kim, Ted (Department: 3746)
Power plants
Reaction motor
Method of operation
C060S253000
Reexamination Certificate
active
07003942
ABSTRACT:
The invention provides a system for passively controlling pressure oscillations of hydrodynamic origin in a solid propellant thruster comprising a body containing a charge of solid propellant, the system comprising at least one insert disposed in the thruster body transversely relative to the flow direction of the combustion gases of the solid propellant. The insert has an opening of non-axisymmetric shape so as to generate a three-dimensional effect on the flow and prevent axisymmetric turbulent modes from forming in the thruster. Thus, the control system of the invention serves to break the symmetry of the flow and thus prevents axisymmetric turbulence forming which is the source of instability that the present invention seeks to control. The present system is applicable to existing thrusters.
REFERENCES:
patent: 3315472 (1967-04-01), Moutet et al.
patent: 3327481 (1967-06-01), Horvath
patent: 3352243 (1967-11-01), Dilchert
patent: 3407736 (1968-10-01), Beuschel
patent: 3423943 (1969-01-01), Stark
patent: 3795106 (1974-03-01), Cherry et al.
patent: 4765134 (1988-08-01), Brown et al.
patent: 5367872 (1994-11-01), Lund et al.
patent: 6148610 (2000-11-01), Calabro et al.
patent: 2 569 234 (1986-02-01), None
patent: 2 764 645 (1998-12-01), None
patent: 1 605 168 (1982-09-01), None
patent: 2 147 342 (2000-04-01), None
Bellomi Paolo
Bondon Bernard
Boury Didier
Jacques Louis
Le Helley Philippe
AVIO S.p.A.
Kim Ted
Snecma Propulsion Solide
Weingarten Schurgin, Gagnebin & Lebovici LLP
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