摘要:
There is disclosed a solid fuel rocket motor (500) which may include a case (510) and a nozzle (540) coupled to the case. A plurality of fuel pellets (525) may be disposed within the case. An igniter (550) may be disposed to ignite at least a portion of the fuel pellets. A pellet retainer (535) 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.
摘要:
An apparatus for vectoring the thrust of a motor that produces thrust along a longitudinal axis by expelling combustion gases through a nozzle (310) may include a plurality of linearly-positionable non-rotatable thrust deflectors (322, 325, 326, 328). The thrust deflectors (322, 325, 326, 328) may be disposed at around a perimeter of the nozzle (310). Each thrust deflector (322, 325, 326, 328) may be independently extended to simultaneously generate both a force (Fl, F2, F3, F4) transverse to the longitudinal axis (305) and a torque (Tl, T2, T3, T4 ) about the longitudinal axis (305).
摘要:
There is disclosed a solid fuel rocket motor (500) which may include a case (510) and a nozzle (540) coupled to the case (510). A plurality of fuel pellets (525) may be disposed within the case (510). An igniter (550) may be disposed to ignite at least a portion of the fuel pellets (525). A pellet retainer (535) may be positioned within the case (510) to retain the plurality of fuel pellets (525) within the case (510). The pellet retainer (535) may be perforated to allow exhaust gases to flow from the ignited fuel pellets to the nozzle (540) while preventing unburned fuel pellets from being expelled through the nozzle (540).
摘要:
A reliable and inexpensive attitude control system uses a plurality of pitch-over thrusters to perform rapid and precise attitude maneuvers for a flight vehicle. The pitch- over thrusters create rotational moments that directly pitch and yaw the flight vehicle. The use of very simple thrusters and control techniques provides for a reliable and cost effective solution. The ability to perform overlapping pitch and yaw maneuvers with single-shot fixed-impulse thrusters provides for high-speed maneuverability.