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US 8,127,534 B2Granted
Pellet loaded attitude control rocket motor
AssigneeRaytheon Company
InventorsRobert J. Cavalleri, Thomas A. Olden
Life of this patent
Estimating the term…
Abstract
There is disclosed a solid fuel rocket motor which may include a case and a nozzle coupled to the case. A plurality of fuel pellets may be disposed within the case. An igniter may be disposed to ignite at least a portion of the fuel pellets. A pellet retainer may be positioned within the case to retain the plurality of fuel pellets within the case. The pellet retainer may be perforated to allow exhaust gases to flow from the ignited fuel pellets to the nozzle while preventing unburned fuel pellets from being expelled through the nozzle.
Claims12
A solid fuel rocket motor comprising
- a case
- a propellant comprising a plurality of fuel pellets disposed within the case
- an igniter disposed to ignite at least some of the plurality of fuel pellets
- a nozzle coupled to the case
- a pellet retainer disposed within the case
- wherein the pellet retainer is perforated to allow exhaust gases to flow from the ignited fuel pellets to the nozzle while preventing unburned fuel pellets from being expelled through the nozzle, and
- wherein a total of the area of the perforations in the pellet retainer is greater than a cross-sectional area of a throat within the nozzle.
4 more elements
A solid fuel rocket motor comprising
- a case
- a plurality of propellant pellets
- means to ignite the propellant pellets
- a nozzle to direct gases produced by the ignited propellant pellets to produce thrust
- retaining means to retain the propellant pellets within the case, the retaining means including a perforated pellet retainer, wherein a total of the area of the perforations in the pellet retainer is greater than a cross-sectional area of a throat within the nozzle.
2 more elements
Dependencies are inferred from the claim text.