초록 ▼

A solid fuel rocket burn rate control method wherein grain preheating energy is supplied to the grain region just ahead of the regressing burn face by optical conductors such as fiber optic filaments that are buried in the grain and dispersed across the grain cross section. The optical conductors re

A solid fuel rocket burn rate control method wherein grain preheating energy is supplied to the grain region just ahead of the regressing burn face by optical conductors such as fiber optic filaments that are buried in the grain and dispersed across the grain cross section. The optical conductors receive optical energy from one of several types of electrical-to-optical energy transducers such as a semiconductor laser or an incandescent source; the optical conductors promote coning burn action at the burn face of the rocket and allow control of the burn rate by electrically modified optical signals.

대표청구항 ▼

A method for generating controlled thrust from a solid fuel grain rocket motor comprising the steps of: igniting the rocket fuel at a grain face burn surface: sensing the achieved burn rate of the fuel grain, generating thereby a burn rate representive signal; preheating a plurality of grain regions

A method for generating controlled thrust from a solid fuel grain rocket motor comprising the steps of: igniting the rocket fuel at a grain face burn surface: sensing the achieved burn rate of the fuel grain, generating thereby a burn rate representive signal; preheating a plurality of grain regions located across the grain body preceding the progressing burn surface with externally supplied optical energy; and modulating the rate of said preheating in response to the difference between a thrust control signal and said burn rate representative signal.